Liquid oil removal device in waste liquid recovery system

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a liquid oil removal device in a waste liquid recovery system, comprising: a treatment box on which a liquid inlet pipe and a liquid discharge pipe are fixed; the stirring mechanism is used for stirring the solution in the treatment box; the chemical adding mechanism is used for adding a chemical for removing oil into the liquid inlet pipe and comprises a chemical bin used for storing chemical liquid; the transmission bin is fixed on the outer wall of the medicine bin, and a centrifugal impeller is rotatably arranged in the transmission bin; the output motor is used as a power source of the dosing mechanism; the transmission assembly is arranged between the output motor and the centrifugal impeller and used for connecting the output motor and the centrifugal impeller; the control mechanism is used for controlling the starting and stopping of the dosing mechanism, and comprises a rotating wheel which is rotatably arranged in the liquid inlet pipe; the polished rod is fixedly connected to the rotating wheel, and a heavy hammer block is arranged on the polished rod in a sliding mode; the adjusting plate is rotatably arranged on the heavy hammer block, and an electromagnetic contact piece is fixed on the adjusting plate; the electromagnetic contact rod is used for being matched with the electromagnetic contact piece; and an adjusting mechanism.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, and in particular to liquid oil removal devices in waste liquid recovery systems. Background Technology

[0002] Industrial production, such as machining and food manufacturing, generates large amounts of oily wastewater. Direct discharge of this wastewater can cause serious harm to the environment and subsequent treatment processes. Therefore, pre-treatment to remove oil is essential. Common oil removal processes typically involve adding chemical agents such as demulsifiers and flocculants to break up the oil, coagulate it, and separate it from the liquid phase.

[0003] However, traditional dosing methods mostly rely on manual timed and quantitative dosing, or simple timed pumping. This method has significant drawbacks: First, it cannot establish a real-time and accurate linkage with the actual inflow of waste liquid. When the waste liquid flow fluctuates, a fixed dosing amount will either result in insufficient dosing and unsatisfactory oil removal, or excessive dosing, causing waste of chemicals and potentially generating new pollution.

[0004] This application proposes a liquid oil removal device in a waste liquid recovery system to address this issue. Application content

[0005] The purpose of this application is to address at least one of the aforementioned technical deficiencies.

[0006] Therefore, one objective of this application is to propose a liquid oil removal device in a waste liquid recovery system to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0007] To achieve the above objectives, one embodiment of this application provides a liquid oil removal device in a waste liquid recovery system, comprising: a treatment tank with an inlet pipe and a outlet pipe fixed thereon; a stirring mechanism for stirring the solution inside the treatment tank; a dosing mechanism for adding oil removal agents into the inlet pipe, comprising: a reagent tank for storing the reagent solution; a transfer tank fixed to the outer wall of the reagent tank, wherein a centrifugal impeller is rotatably mounted inside the transfer tank; an output motor as the power source for the dosing mechanism; a transmission assembly disposed between the output motor and the centrifugal impeller for connecting the output motor and the centrifugal impeller; and a control mechanism for controlling the start and stop of the dosing mechanism, comprising: a rotating wheel rotatably disposed inside the inlet pipe; a smooth rod fixedly connected to the rotating wheel, wherein a counterweight is slidably mounted on the smooth rod; an adjusting plate rotatably disposed on the counterweight, wherein an electromagnetic contact plate is fixed on the adjusting plate; an electromagnetic contact rod for cooperating with the electromagnetic contact plate; and an adjustment mechanism linked with the control mechanism for adjusting the dosing speed.

[0008] Preferably, any of the above solutions further includes a frame, on which a baffle is detachably mounted; a positioning plate and a positioning frame are fixed on the frame, and the output motor is fixed on the positioning frame.

[0009] Preferably, in any of the above embodiments, the processing box is fixed on the frame, and a through hole is provided on the processing box; a vertical plate is fixed inside the liquid inlet pipe, the rotating wheel is rotatably mounted on the vertical plate, a protrusion extends from one end of the liquid inlet pipe, a circular hole communicating with the inside of the liquid inlet pipe is provided on the protrusion, the rotating wheel is rotatably mounted in the circular hole, and one end of the wheel extends to the outside of the protrusion; a solenoid valve is fixed on the liquid outlet pipe.

[0010] Preferably, in any of the above embodiments, the stirring mechanism includes: a stirring motor, which is fixed to the processing box via a first support rod; a stirring rod, on which a stirring blade is fixedly mounted, the stirring blade being rotatably disposed within a through hole, and one end of the stirring blade extending outside the processing box and fixedly connected to the output end of the stirring motor.

[0011] Preferably, in any of the above embodiments, one end of the optical rod is rotatably mounted on the positioning plate, a return spring is sleeved on the optical rod, one end of the return spring is fixed to the positioning plate, and a ring is fixed to the other end of the return spring. The ring is rotatably mounted on the counterweight block. A through groove is formed on the optical rod. A slider is fixed on the counterweight block and is slidably mounted in the through groove.

[0012] Preferably, in any of the above embodiments, the control mechanism further includes: a support rod, one end of which is fixed to the positioning plate and the other end of which is fixed to the frame, and the electromagnetic contact rod is fixed to the support rod; a limiting rod, one end of which is fixed to the positioning plate and the other end of which is fixed to the frame, and the adjusting plate is slidably disposed on the limiting rod.

[0013] Preferably, in any of the above embodiments, the transfer chamber is fixed with an inlet tube and an outlet tube, the inlet tube is fixed to the medicine chamber, the outlet tube is fixedly connected to the liquid inlet tube, and an intermediate tube is fixedly provided on the outlet tube, with a threaded hole at the end of the intermediate tube.

[0014] Preferably, in any of the above embodiments, the transmission assembly includes: a transmission rod rotatably mounted on a positioning frame, with first bevel gears fixed at both ends of the transmission rod, and second bevel gears meshing on both first bevel gears, one of the second bevel gears being fixed to the shaft of the centrifugal impeller, and a rotating rod being fixed on the other second bevel gear, the rotating rod being rotatably mounted on the positioning frame, and one end of the rotating rod being connected to the output end of the output motor.

[0015] Preferably, in any of the above embodiments, the adjusting mechanism includes: a sealing plug disposed inside the intermediate tube, a screw fixed to the sealing plug, the screw being threaded into a threaded hole; a side support block rotatably provided with a gear, the gear having a through hole, the through hole having a groove; a transmission rod fixed to the screw, the transmission rod being disposed inside the through hole, the transmission rod having a lug fixedly provided, the lug being slidably disposed in the groove; an electric push rod fixed to the positioning plate, the output end of the electric push rod having a vertical plate fixedly provided, a rack fixedly provided on the vertical plate, the rack meshing with the gear; and a proportional control switch for controlling the output and retraction movements of the electric push rod.

[0016] Preferably, in any of the above embodiments, the proportional control switch includes a switch end and a push block, the switch end is fixed on the positioning plate, the push block is slidably disposed on the switch end, and one end of the push block is fixedly connected to the adjustment plate.

[0017] Compared with the prior art, the advantages and beneficial effects of this application are as follows: 1. The dosing process is fully automated through a control mechanism. The kinetic energy of the waste liquid flow drives the rotor to rotate, and the flow rate signal is converted into a displacement signal through a centrifugal weight mechanism. When the flow rate reaches the set threshold, the electromagnetic contact plate contacts the electromagnetic contact rod, automatically connecting the output motor circuit to start dosing. When the waste liquid stops flowing in, the rotor stops rotating, the mechanism resets under the action of the spring, and the dosing stops automatically. The dosing start of the device is directly controlled by the waste liquid flow rate, ensuring the basic logic of "dosing only when there is waste liquid flowing in, and stopping when there is no flow". This fundamentally avoids the waste and idling of dosing without liquid, and makes the dosing amount consistent with the waste liquid treatment requirements on a macroscopic scale.

[0018] 2. The outstanding advantage of this invention lies in the setting of an adjustment mechanism linked to the control mechanism. The displacement of the adjustment plate not only controls the "start and stop" of the dosing, but also synchronously drives the proportional control switch, converting the displacement into an electrical signal and sending it to the electric push rod. The electric push rod drives the sealing plug to move through the gear and rack mechanism, thereby continuously changing the opening size of the agent channel. This means that the faster the flow rate of the waste liquid, the higher the rotation speed of the rotor, and the greater the displacement of the counterweight block. This will not only trigger the dosing, but also make the dosing channel open wider and the dosing speed faster, thereby achieving real-time and precise matching between the dosing speed and the flow rate of the waste liquid, keeping the oil-agent mixing ratio always in the optimal state, and significantly improving the oil removal efficiency and effect.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a perspective view of an embodiment according to this application; Figure 2 This is a schematic diagram of the processing box connection according to an embodiment of this application; Figure 3 This is a schematic diagram of the drug storage compartment connection according to an embodiment of this application; Figure 4 This is a schematic cross-sectional view of the processing box according to an embodiment of this application; Figure 5 This is a schematic diagram of the cross-sectional view of the tube according to an embodiment of this application; Figure 6 According to the embodiments of this application Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the explosive connection of a centrifugal impeller according to an embodiment of this application; Figure 8 This is a schematic diagram of the wheel connection according to an embodiment of this application; Figure 9 This is an exploded view of the regulating plate according to an embodiment of this application; Figure 10 According to the embodiments of this application Figure 9 Enlarged view of point B in the middle; Figure 11 This is an exploded view of the side support according to an embodiment of this application; Figure 12 This is a schematic diagram of a transmission component according to an embodiment of this application.

[0021] In the diagram: 1. Processing tank; 11. Inlet pipe; 1101. Protrusion; 12. Drain pipe; 2. Stirring mechanism; 21. Stirring motor; 22. Stirring rod; 23. Stirring blade; 3. Dosing mechanism; 31. Drug chamber; 32. Transfer chamber; 3201. Inlet pipe; 3202. Outlet pipe; 3203. Intermediate pipe; 3204. Centrifugal impeller; 33. Output motor; 34. Transfer assembly; 3401. Transmission rod; 3402. First bevel gear; 3403. Second bevel gear; 3404. Rotating rod; 4. Control mechanism, 41. Rotary wheel, 42. Smooth rod, 43. Counterweight block, 44. Adjusting plate, 45. Electromagnetic contact piece, 46. Electromagnetic contact rod, 47. Support rod, 48. Limiting rod, 49. Return spring, 5. Adjusting mechanism, 51. Sealing plug, 52. Screw, 53. Side bracket, 54. Gear, 55. Transmission rod, 56. Electric push rod, 57. Vertical plate, 58. Rack, 59. Proportional control switch, 5901. Switch end, 5902. Push block, 6. Frame, 61. Positioning plate, 62. Positioning frame. Detailed Implementation

[0022] like Figures 1 to 12 As shown, the liquid oil removal device in the waste liquid recovery system includes a treatment tank 1, a stirring mechanism 2, a dosing mechanism 3, a control mechanism 4, and an adjustment mechanism 5.

[0023] Furthermore, it also includes a frame 6, on which baffles are detachably installed. The baffles are connected end to end to enclose the frame 6 to form a receiving space for accommodating the aforementioned mechanism. Observation slots are provided on two of the baffles. The frame 6 is fixed with a positioning plate 61 and a positioning frame 62.

[0024] Furthermore, the processing box 1 is fixed with an inlet pipe 11 and a drain pipe 12, wherein the inlet pipe 11 is connected to a waste liquid discharge pipe, and the drain pipe 12 is connected to the next process device. The processing box 1 is fixed on the frame 6, and a through hole is provided on the processing box 1; A vertical plate is fixed inside the liquid inlet pipe 11. A protrusion 1101 extends from one end of the liquid inlet pipe 11. A circular hole communicating with the inside of the liquid inlet pipe 11 is opened on the protrusion 1101. The rotating wheel 41 is rotatably disposed in the circular hole, and one end of it extends to the outside of the protrusion 1101. A solenoid valve is fixed on the drain pipe 12. The solenoid valve is used as a valve on the drain pipe 12 and can open or close the drain valve.

[0025] Furthermore, the stirring mechanism 2 is used to stir the solution inside the treatment tank 1, and includes: The stirring motor 21 is fixed to the processing box 1 by the first support rod 47; A stirring rod 22 is fixedly provided with a stirring blade 23. The stirring rod is rotatably disposed in a through hole, and one end of it extends to the outside of the processing box 1 and is fixedly connected to the output end of the stirring motor 21. Both the stirring rod 22 and the stirring blade 23 are disposed inside the processing box 1. The stirring motor 21 drives the stirring rod 22 to rotate, which in turn drives the stirring blade 23 to stir within the treatment tank 1, thereby mixing the waste liquid and the medicine.

[0026] Furthermore, the dosing mechanism 3 is used to add an oil-removing agent into the inlet pipe 11, including: Medicine container 31 is used to store liquid medicine, and a medicine addition tube is fixed on the medicine container 31; The transfer chamber 32 is fixed to the outer wall of the medicine chamber 31, and a centrifugal impeller 3204 is rotatably provided inside the transfer chamber 32. The output motor 33 serves as the power source for the dosing mechanism 3, and the output motor 33 is fixed on the positioning frame 62; The transmission assembly 34 is located between the output motor 33 and the centrifugal impeller 3204, and is used to connect the output motor 33 and the centrifugal impeller 3204. The transmission assembly 34 includes: A transmission rod 3401 is rotatably mounted on a positioning frame 62. Both ends of the transmission rod 3401 are fixed with first bevel gears 3402. Each of the two first bevel gears 3402 is meshed with a second bevel gear 3403. One of the second bevel gears 3403 is fixed to the shaft of the centrifugal impeller 3204, and the other second bevel gear 3403 is fixed with a rotating rod 3404. The rotating rod 3404 is rotatably mounted on the positioning frame 62, and one end of it is connected to the output end of the output motor 33. The transfer chamber 32 is fixed with an inlet pipe 3201 and an outlet pipe 3202. The inlet pipe 3201 is fixed to the medicine chamber 31, and the outlet pipe 3202 is fixedly connected to the liquid inlet pipe 11. An intermediate pipe 3203 is fixedly provided on the outlet pipe 3202, and a threaded hole is opened at the end of the intermediate pipe 3203.

[0027] Furthermore, the control mechanism 4 is used to control the start and stop of the dosing mechanism 3, including: Rotary wheel 41 is rotatably disposed inside the liquid inlet pipe 11, and the rotary wheel 41 is rotatably disposed on the vertical plate 57; A light rod 42 is fixedly connected to a rotating wheel 41, and a counterweight block 43 is slidably provided on the light rod 42; An adjusting plate 44 is rotatably mounted on a counterweight block 43, and an electromagnetic contact piece 45 is fixed on the adjusting plate 44. The electromagnetic contact rod 46 is used to cooperate with the electromagnetic contact piece 45. An insulating rod is fixed to the front end of the electromagnetic contact rod 46. The insulating rod is used to limit the start-up. The electromagnetic contact rod 46, the electromagnetic contact piece 45 and the output motor 33 are electrically connected. One end of the light rod 42 is rotatably mounted on the positioning plate 61. A return spring 49 is sleeved on the light rod 42. One end of the return spring 49 is fixed to the positioning plate 61, and a ring is fixed to the other end of the return spring 49. The ring is rotatably mounted on the counterweight block 43. A through slot is provided on the optical rod 42; A slider is fixed on the counterweight block 43, and the slider is slidably disposed in the through groove; Also includes: The support rod 47 has one end fixed to the positioning plate 61 and the other end fixed to the frame 6. The electromagnetic contact rod 46 is fixed to the support rod 47. A limiting rod 48 is fixed at one end to a positioning plate 61 and at the other end to a frame 6. An adjusting plate 44 is slidably mounted on the limiting rod 48. The limiting rod 48 is used to limit the movement trajectory of the adjusting plate 44. The impeller 41 is located inside the liquid inlet pipe 11. The flow of liquid can drive the rotation of the impeller 41. According to Newton's third law, the blades exert a force on the water flow to change its direction. The water flow will also exert a reaction force on the blades that is equal in magnitude and opposite in direction. This reaction force acts on the blades. Since the blades are fixed on the rotating shaft, this force generates a torque, thereby driving the impeller 41 to rotate. Specifically, the impeller on the impeller 41 in this application is the aforementioned blade.

[0028] Furthermore, the adjusting mechanism 5 is linked with the control mechanism 4 to adjust the dosing speed, including: A sealing plug 51 is disposed inside the intermediate tube 3203, and a screw 52 is fixed on the sealing plug 51, with the screw 52 threaded into a threaded hole; A side support block 53 is provided with a rotatable gear 54, the gear 54 having a through hole and a groove. The transmission rod 55 is fixed on the screw 52. The transmission rod 3401 is provided in the through hole. The transmission rod 55 is fixedly provided with a lug, which is slidably provided in the groove. An electric push rod 56 is fixed on a positioning plate 61. A vertical plate 57 is fixed to the output end of the electric push rod 56. A rack 58 is fixed on the vertical plate 57. The rack 58 meshes with a gear 54. The proportional control switch 59 is used to control the output and retraction motion of the electric push rod 56; The proportional control switch 59 includes a switch end 5901 and a push block 5902. The switch end 5901 is fixed on the positioning plate 61, and the push block 5902 is slidably disposed on the switch end 5901. One end of the push block 5902 is fixedly connected to the adjustment plate 44. The switch terminal 5901 contains a potentiometer or Hall sensor. When you push the push block 5902, you are actually changing the resistance value or magnetic field strength. The displacement is converted into a continuously changing voltage signal or current signal. When the controller of the electric push rod 56 receives this continuously changing voltage signal, it will interpret it as a position command.

[0029] In the initial state, the sealing plug 51 completely blocks the intermediate tube 3203.

[0030] In the process of removing oil from industrial waste liquid, it is necessary to add chemicals to the waste liquid twice for treatment. The first addition is a demulsifier / coagulant (such as PAC), and the subsequent addition is a flocculant / coagulant aid (such as PAM). The device in this application is mainly for the treatment of the first chemical addition.

[0031] In this application, level gauges are fixed on the processing tank 1 and the medicine tank 31, and the level gauges correspond to the positions of the observation tank.

[0032] The working principle of the liquid oil removal device in the waste liquid recovery system is as follows: Waste liquid is added into the treatment tank 1 through the inlet pipe 11. During this process, the flow of waste liquid will drive the rotating wheel 41 to rotate. The rotation of the rotating wheel 41 will drive the polished rod 42 to rotate. During the rotation of the polished rod 42, the counterweight block 43 will rotate with it. As the speed of the rotating wheel 41 increases, the counterweight block 43 will be driven by radial force and move to one end. When the speed of the rotating wheel 41 decreases, the radial force on the counterweight block 43 is smaller, and it will move in the opposite direction with the help of the spring. The rotational speed of the rotor 41 is controlled by the flow rate of the liquid. The counterweight block 43 moves with the rotational speed. The movement of the counterweight block 43 drives the adjustment plate 44 on it to move. As the adjustment plate 44 moves, the electromagnetic contact plate 45 is driven and connected to the electromagnetic contact rod 46, so that the output motor 33 is turned on. The output motor 33 drives the rotating rod 3404, which drives the second bevel gear 3403 on it to rotate, thereby driving the first bevel gear 3402 that meshes with it. The first bevel gear 3402 drives the transmission rod 3401, which in turn drives the first bevel gear 3402 and the second bevel gear 3403 on the other side of the transmission rod 3401, thereby driving the centrifugal impeller 3204 to rotate, thereby generating centrifugal force in the transmission chamber 32. In conjunction with the inlet pipe 3201 and the outlet pipe 3202, the medicine is transported to the inlet pipe 11. The movement of the regulating plate 44 synchronously drives the push block 5902 of the proportional control switch 59 to move. The movement of the push block 5902 causes the electric push rod 56 to receive the signal and make a displacement drive. The electric push rod 56 drives the positioning plate 61 to move. The positioning plate 61 drives the rack 58 to move. The rack 58 drives the gear 54 meshing with it to rotate. The rotation of the gear 54 drives the transmission rod 55 to move. Under the limitation of the lug of the transmission rod 55 and the groove on the gear 54, the transmission rod 55 can move along the axis of the gear 54 while rotating with the gear 54. The transmission rod 55 drives the screw 52 to move. The screw 52 drives the sealing plug 51 to move, thereby realizing the control of the liquid flow rate. When the waste liquid stops being added, the rotor 41 is no longer driven. Under the action of the spring, the counterweight block 43 is driven to reset, and the electromagnetic contact 45 is stopped on the insulating rod, so that the output motor 33 stops working.

Claims

1. A liquid deoiling device in a spent liquor recovery system, characterized by: The utility model provides a kind of oil removal device, comprising: A processing box is fixed with liquid inlet pipe and liquid outlet pipe on it; Stirring mechanism is used to stir solution inside processing box; Medicine adding mechanism is used to add oil removal reagent into liquid inlet pipe, comprising: Medicine bin is used to store liquid medicine; Transmission bin is fixed on the outer wall of medicine bin, and centrifugal impeller is rotatably arranged in the transmission bin; Output motor is used as power source of medicine adding mechanism; Transmission assembly is arranged between output motor and centrifugal impeller, used to connect output motor and centrifugal impeller; Control mechanism is used to control start and stop of medicine adding mechanism, comprising: Rotary wheel is rotatably arranged in liquid inlet pipe; Light pole is fixedly connected to rotary wheel, and weight block is slidably arranged on light pole; Adjusting plate is rotatably arranged on weight block, and electromagnetic contact piece is fixed on adjusting plate; Electromagnetic contact rod is used to cooperate with electromagnetic contact piece; Adjusting mechanism is linked with control mechanism to adjust medicine adding speed.

2. The liquid deoiling device in a waste liquid recovery system according to claim 1, characterized by: It also includes a rack, and the side wall of the rack is detachably mounted with a baffle; Positioning plate and positioning frame are fixed on the rack, and output motor is fixed on the positioning frame.

3. The liquid deoiling device in a spent liquor recovery system according to claim 2, characterized by: The processing box is fixed on the rack, and the processing box is provided with a through hole; Vertical plate is fixed in liquid inlet pipe, and rotary wheel is rotatably arranged on the vertical plate, one end of liquid inlet pipe is extended with a protrusion, and a circular hole is formed in the protrusion and communicated with the inside of liquid inlet pipe, and rotary wheel is rotatably arranged in the circular hole and extended to the outside of the protrusion; Electromagnetic valve is fixed on liquid outlet pipe.

4. The liquid deoiling device in a waste liquid recovery system according to claim 1, characterized by: The stirring mechanism comprises: Stirring motor is fixed on the processing box through a first support rod; Stirring rod is fixed with stirring blades, and the stirring rod is rotatably arranged in the through hole and extended to the outside of the processing box and fixedly connected to the output end of the stirring motor.

5. The liquid deoiling device in a waste liquid recovery system according to claim 1, characterized by: One end of the light pole is rotatably arranged on the positioning plate, a return spring is sleeved on the light pole, one end of the return spring is fixed on the positioning plate, and the other end of the return spring is fixed with a circular ring, and the circular ring is rotatably arranged on the weight block; A through groove is formed in the light pole; A sliding block is fixed on the weight block, and the sliding block is slidably arranged in the through groove.

6. The liquid deoiling device in a spent liquor recovery system of claim 5, wherein: The control mechanism further comprises: A support rod is fixed at one end on the positioning plate and at the other end on the rack, and the electromagnetic contact rod is fixed on the support rod; A limiting rod is fixed at one end on the positioning plate and at the other end on the rack, and the adjusting plate is slidably arranged on the limiting rod.

7. The liquid deoiling device in a spent liquor recovery system of claim 1, wherein: The transmission bin is fixed with a guide-in pipe and a guide-out pipe, the guide-in pipe is fixed on the medicine bin, the guide-out pipe is fixedly connected to the liquid inlet pipe, an intermediate pipe is fixed on the guide-out pipe, and a threaded hole is formed in the end of the intermediate pipe.

8. The liquid deoiling device in a spent liquor recovery system of claim 1, wherein: The transmission assembly comprises: A transmission rod is rotatably arranged on the positioning frame, and first bevel gears are fixed at both ends of the transmission rod, second bevel gears are engaged with the first bevel gears, one of the second bevel gears is fixed on the shaft of the centrifugal impeller, another second bevel gear is fixed with a rotating rod, the rotating rod is rotatably arranged on the positioning frame, and one end of the rotating rod is connected to the output end of the output motor.

9. The liquid deoiling device in a spent liquor recovery system of claim 7, wherein: The adjusting mechanism comprises: A sealing plug is arranged in the intermediate pipe, a screw rod is fixed on the sealing plug, and the screw rod is threadedly arranged in the threaded hole. A side support block rotatably provided with a gear, a through hole is formed in the gear, and a groove is formed in the through hole; A transmission rod fixed to the screw rod, the transmission rod is arranged in the through hole, a lug is fixedly arranged on the transmission rod, and the lug is slidingly arranged in the groove; An electric push rod fixed to the positioning plate, a vertical plate is fixed to the output end of the electric push rod, a rack is fixed to the vertical plate, and the rack is engaged with the gear; A proportional control switch used for controlling the output and retraction movement of the electric push rod.

10. The liquid deoiling device in a spent liquor recovery system of claim 9, wherein: The proportional control switch comprises a switch end and a push block, the switch end is fixed to the positioning plate, the push block is slidingly arranged on the switch end, and one end of the push block is fixedly connected to the adjusting plate.

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