Wastewater treatment device for plasticizer production

Abstract

The invention relates to the technical field of wastewater treatment devices, and discloses a plasticizer production wastewater treatment device which comprises a distiller, the distiller comprises an outer shell and an inner shell, a heater is fixedly arranged at the bottom of the inner shell, and a liquid inlet end is fixedly arranged on the upper side wall of the inner shell; the surface of the inner shell is fixedly provided with a plurality of exhaust holes, the bottom of the inner shell is fixedly provided with a sewage discharge end, the top of the outer shell is fixedly connected with a driver, the driving end of the driver is fixedly connected with a transmission cylinder, the outer wall of the transmission cylinder is fixedly provided with stirring blades, and the surface of the transmission cylinder is provided with a cleaning assembly. High-pressure gas is input through the high-pressure gas conveying equipment, the high-pressure gas carries waste residues in the inner shell to be discharged from the sewage discharging end, rapid discharging of the waste residues is achieved, the driver drives the scraping plate to rotate, the scraping plate rotates to scrape away the waste residues left on the inner wall of the inner shell, and the cleaning and discharging effect on the waste residues can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment devices, and particularly to a wastewater treatment device for plasticizer production. Background Art

[0002] Plasticizers are the largest variety of additives in modern plastics industry, accounting for 60% of the total output of plastic additives. The use of plasticizers can improve the performance of polymer materials, reduce production costs, and improve production efficiency. They are an important type of chemical product additives. A large amount of wastewater is generated during the production process of plasticizers, and a large amount of waste residue is generated during the wastewater distillation process. The waste residue needs to be removed in time, otherwise it will affect the next use.

[0003] The recovery of plasticizer wastewater usually adopts the distillation method. However, the traditional distillation technology has problems such as slow distillation rate and cumbersome waste residue cleaning. After each distillation, it is necessary to comprehensively clean the waste residue at the bottom of the equipment, which not only consumes a lot of manpower but also results in a long downtime.

[0004] After retrieval, a wastewater recovery device for plasticizer production is disclosed in the publication number: CN215559108U, which includes an electric motor. The lower end of the electric motor is sleeved and connected with a rotating shaft. The rotating shaft penetrates through one side and is connected with a distiller. Inside the distiller, a baffle is fixedly connected by screws near the upper end. The surface of the baffle is penetrated with a steam outlet. A stirring rod is welded to the lower end of the distiller. A heater is arranged below the baffle. A collecting dish is arranged at the bottom of the distiller. By setting a device that can accelerate distillation and has dust suction at the bottom, the distillation process is accelerated by driving a multi-tooth stirring rod by the motor. At the same time, after distillation, there is no need for manual cleaning of the waste residue at the bottom. Open the valve and the waste residue is automatically cleaned out by the dust suction device, saving a lot of time and manpower.

[0005] In the above application, the steam generated by distillation is cooled, resulting in heat loss and the inability to further utilize the heat energy of the steam. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a wastewater treatment device for plasticizer production, which solves the problems that the waste residue at the bottom of the equipment is not easy to clean and discharge, and in the prior art, the steam generated by distillation is cooled, resulting in heat loss and the inability to further utilize the heat energy of the steam.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wastewater treatment device for plasticizer production, comprising a distiller, the distiller comprising an outer shell and an inner shell, a heater is fixedly provided at the bottom of the inner shell, a liquid inlet end is fixedly provided on the upper side wall of the inner shell, a plurality of exhaust holes are fixedly provided on the surface of the inner shell, a sewage discharge end is fixedly provided at the bottom of the inner shell, a driver is fixedly connected to the top of the outer shell, a driving end of the driver is fixedly connected to a transmission cylinder, a stirring blade is fixedly provided on the outer wall of the transmission cylinder, a cleaning component is installed on the surface of the transmission cylinder, the cleaning component comprises an air guide pipe and a scraper, one end of the air guide pipe is inserted into the interior of the transmission cylinder, and the other end of the air guide pipe passes through the sewage discharge end and extends to the outside and is fixedly connected to a high-pressure gas conveying device, an air outlet is provided on the upper side wall of the transmission cylinder, and the bottom end of the scraper is rotatably connected to the bottom end of the transmission cylinder through a shaft.

[0008] Preferably, the cleaning assembly also includes a counterweight column, which is inserted into the interior of the transmission cylinder, and the top end of the counterweight column is connected to a connecting rod via an axial rotation connection frame, and the other end of the connecting rod is connected to the upper side wall of the scraper via an axial rotation connection.

[0009] Preferably, a sealing piston ring is fixedly provided on the outer wall of the counterweight column, and a solenoid valve 1 is fixedly provided on the bottom end of the air guide pipe.

[0010] Preferably, an exhaust end is fixedly provided on the top of the outer shell, two groups of partition layers are fixedly provided between the outer shell and the inner shell, a flow port is fixedly provided on the surface of the upper partition layer, a solenoid valve four is fixedly provided on the surface of the flow port, a liquid discharge end is fixedly provided on the surface of the outer shell, and a solenoid valve three is fixedly provided on the surface of the liquid discharge end.

[0011] Preferably, a separation assembly is installed on the top of the inner shell and the transmission cylinder, and the separation assembly includes a separation cylinder, which is located above the exhaust hole, and the bottom end of the separation cylinder is fixedly connected to the inner shell, and the upper inner wall of the separation cylinder is fixedly connected to a perforated plate, and the bottom end of the perforated plate is fixedly connected to a moisture adsorption layer.

[0012] Preferably, a rotating shaft is provided through the center of the orifice plate, the top end of the rotating shaft is transmission-connected to the transmission cylinder through a reduction transmission mechanism, and the bottom end of the rotating shaft is fixedly connected to a reciprocating screw, the surface of the reciprocating screw is threadedly connected to an internal threaded ring, the outer wall of the internal threaded ring is slidingly connected to the separation cylinder, and an extrusion piston ring and a connecting cylinder are provided above the internal threaded ring from top to bottom, the rotating shaft passes through the extrusion piston ring and the connecting cylinder, and circulation holes are provided on the surfaces of the extrusion piston ring and the internal threaded ring.

[0013] Preferably, a one-way valve is fixedly provided on the inner wall of the flow hole on the surface of the extrusion piston ring, and an extrusion column is fixedly connected to the inside of the flow hole on the surface of the internal threaded ring.

[0014] Preferably, a cover plate is installed below the exhaust hole, and the cover plate is rotatably connected to the inner shell through a torsion spring shaft, and an opening is formed on the lower side wall of the separation cylinder.

[0015] Preferably, the reduction transmission mechanism comprises a large gear and a small gear that are meshingly connected, the small gear is fixedly mounted on the outer wall of the transmission cylinder, and the large gear is fixedly mounted on the outer wall of the rotating shaft.

[0016] Preferably, a sealing cover is installed below the exhaust hole, the inner top wall of the sealing cover is fixedly connected with a telescopic rod, the top end of the telescopic rod is fixedly connected to the inner shell body, and the upper side wall of the transmission cylinder is slidably connected with a T-shaped extrusion piece through the air outlet.

[0017] Working principle: wastewater is added to the inner shell through the liquid inlet end. After adding, the liquid inlet end is closed, and the wastewater is heated and distilled through the heater. The transmission cylinder is driven by the driver to rotate, and the transmission cylinder drives the stirring blades to rotate to stir the wastewater and accelerate the distillation reaction. The water vapor generated by the distillation is discharged through the exhaust hole, and the waste residue after distillation remains in the inner shell. When the waste residue needs to be cleaned, the sewage discharge end is opened, and high-pressure gas is input through the high-pressure gas conveying equipment. The high-pressure gas enters the transmission cylinder through the air duct and enters the inner shell through the air outlet, and then carries the waste residue inside the inner shell out from the sewage discharge end, so as to realize the rapid discharge of waste residue.

[0018] During stirring, the counterweight column slides downward by its own gravity, and pulls the scraper to rotate and close toward the vertical center line of the distiller through the connecting rod, so that the scraper does not contact the inner shell when stirring the wastewater, thereby reducing wear and extending the service life of the scraper. When the high-pressure gas flows, the gas pushes the counterweight column to move upward, and the counterweight column moves upward. The connecting rod pushes the scraper to expand and press against the inner wall of the inner shell for cleaning. When the high-pressure gas pushes the counterweight column to move upward, the counterweight column pushes the extrusion piece to move upward, and the extrusion piece pushes the top of the sealing cover tightly against the inner top wall of the inner shell, thereby blocking the exhaust hole, avoiding the waste of high-pressure gas from the exhaust hole, and preventing waste residue from entering the outer shell.

[0019] Water vapor enters the interior of the separation cylinder through the exhaust hole, and the moisture in the water vapor is absorbed by the moisture adsorption layer. When the transmission cylinder rotates, the rotating shaft is driven to rotate through the reduction transmission mechanism, and the rotating shaft drives the reciprocating screw to rotate. The reciprocating screw drives the internal threaded ring to reciprocate and rise and fall. When the internal threaded ring moves upward, it drives the extrusion piston ring and the connecting cylinder to move upward, so that the extrusion piston ring cooperates with the orifice plate to squeeze the moisture inside the moisture adsorption layer upward through the orifice plate. Since the temperature of the top area of ​​the inner shell is lower than the temperature of the lower area, the moisture in the water vapor will condense and stay in the outer shell, and gradually fall and gather on the upper separation layer. When wastewater is added subsequently, the solenoid valve four is opened to allow the wastewater to flow down through the flow port onto the lower separation layer, and conduct heat to the wastewater through the lower half of the inner shell, thereby accelerating the temperature rise of the wastewater. The temperature of the wastewater in the inner shell and the temperature of the high-temperature water inside the outer shell are detected by the temperature sensor module. When the temperature of the high-temperature water is close to the temperature of the wastewater, the controller opens the solenoid valve three to allow the water flow inside the outer shell to be discharged through the discharge end to avoid absorbing the temperature of the wastewater, and to create space for the subsequent collection of water in the wastewater to flow out, thereby achieving the effect of further utilizing the thermal energy of distilled water and accelerating the temperature rise of the wastewater.

[0020] The present invention provides a wastewater treatment device for plasticizer production, which has the following beneficial effects: 1. The present invention inputs high-pressure gas through a high-pressure gas conveying device, and the high-pressure gas carries the waste residue inside the inner shell and is discharged from the sewage discharge end, thereby realizing the rapid discharge of the waste residue. The scraper is driven to rotate by a driver, and the scraper rotates to scrape off the waste residue remaining on the inner wall of the inner shell, thereby improving the cleaning and discharge effect of the waste residue.

[0021] 2. The present invention uses the gravity of the counterweight column to pull down the scraper, so that the scraper is retracted when stirring the wastewater and does not contact the inner shell, thereby reducing wear and extending the service life of the scraper. When the high-pressure gas flows, the high-pressure gas drives the scraper to expand and press against the inner wall of the inner shell for cleaning.

[0022] 3. The present invention condenses high-temperature distilled water and collects it in the upper shell through a separation component, and when treating subsequent wastewater, the collected high-temperature water is used to heat the wastewater, thereby accelerating the temperature rise of the wastewater and achieving the effect of further utilizing the thermal energy of the distilled water.

[0023] 4. The present invention absorbs moisture in water vapor through the moisture adsorption layer, and the extrusion piston ring cooperates with the orifice plate to squeeze the moisture inside the moisture adsorption layer upward through the orifice plate, thereby improving the continuous adsorption effect of the moisture adsorption layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic cross-sectional view of the outer shell of the present invention; Figure 3 Schematic cross-sectional view of the inner housing of the present invention; Figure 4 For the present invention Figure 3 Enlarged view at location A in; Figure 5 Schematic structural view of the separation assembly of the present invention; Figure 6 Schematic cross-sectional view of the separation cylinder of the present invention; Figure 7 For the present invention Figure 6 Enlarged view at location A of; Figure 8 Schematic connection view of the internal thread ring and the extrusion piston ring of the present invention; Figure 9 Schematic position view of the extrusion member and the counterweight column of the present invention.

[0025] Wherein, 1, distiller; 11, outer housing; 12, inner housing; 13, liquid inlet end; 14, exhaust hole; 15, exhaust end; 16, partition layer; 17, liquid discharge end; 18, sewage discharge end; 19, circulation port; 2, driver; 3, transmission cylinder; 4, extrusion member; 5, cleaning assembly; 51, air duct; 52, scraper; 53, counterweight column; 54, connecting rod; 55, sealing piston ring; 6, separation assembly; 601, separation cylinder; 602, orifice plate; 603, moisture adsorption layer; 604, rotating shaft; 606, reciprocating lead screw; 607, internal thread ring; 608, extrusion piston ring; 609, connecting cylinder; 610, circulation hole; 611, extrusion column; 612, large gear; 613, small gear; 614, check valve; 7, cover plate; 9, sealing cover; 10, telescopic rod. Detailed implementation manners

[0026] Next, in combination with the drawings of the present invention, the technical solutions of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to the attached Figure 1 - attached Figure 3The embodiment of the present invention provides a wastewater treatment device for plasticizer production, including a distiller 1 and a controller of the distiller 1. The distiller 1 includes an outer shell 11 and an inner shell 12. A heater is fixedly arranged at the bottom of the inner shell 12. The heater adopts an electric heating belt. The electric heating belt is laid on the outer wall of the hemispherical bottom of the inner shell 12. A liquid inlet end 13 is fixedly arranged on the upper side wall of the inner shell 12. A valve is fixedly arranged on the surface of the liquid inlet end 13. The liquid inlet end 13 penetrates and is sealed and fixedly connected to the outer shell 11. A plurality of exhaust holes 14 are fixedly arranged on the surface of the inner shell 12. A sewage discharge end 18 is fixedly arranged at the bottom of the inner shell 12. A valve is fixedly arranged on the surface of the sewage discharge end 18. The sewage discharge end 18 penetrates and is sealed and fixedly connected to the outer shell 11. A driver 2 is fixedly connected to the top of the outer shell 11. The driver 2 is a motor. The driving end of the driver 2 penetrates the outer shell 11 and is fixedly connected to The transmission cylinder 3 passes through the inner shell 12, and the outer wall of the transmission cylinder 3 is fixedly provided with a stirring blade. The surface of the transmission cylinder 3 is installed with a cleaning component 5, and the cleaning component 5 includes an air guide pipe 51 and a scraper 52. One end of the air guide pipe 51 is inserted into the interior of the transmission cylinder 3, and the other end of the air guide pipe 51 passes through the sewage discharge end 18 and extends to the outside and is fixedly connected with a high-pressure gas conveying device. The penetration of the air guide pipe 51 and the sewage discharge pipe is sealed by welding. An air outlet is provided on the upper side wall of the transmission cylinder 3, and the bottom end of the scraper 52 is rotatably connected to the bottom end of the transmission cylinder 3 through an axis. The high-pressure gas conveying equipment adopts an air compressor or a high-pressure fan. The top of the air guide pipe 51 is higher than the liquid level of the wastewater in the inner shell 12. The scraper 52 is made of wear-resistant material, and the outer wall of the scraper 52 fits the inner wall of the inner shell 12. The controller is electrically connected to the heater, the driver 2 and the high-pressure gas conveying equipment.

[0028] Specifically, wastewater is added to the inner shell 12 through the liquid inlet end 13. After the addition is completed, the liquid inlet end 13 is closed, and the wastewater is heated and distilled by the heater. The transmission cylinder 3 is driven to rotate by the driver 2, and the transmission cylinder 3 drives the stirring blades to rotate to stir the wastewater, thereby accelerating the distillation reaction. The water vapor generated by the distillation is discharged through the exhaust hole 14, and the waste residue after the distillation remains in the inner shell 12. When the waste residue needs to be cleaned, the sewage discharge end 18 is opened, and high-pressure gas is input through the high-pressure gas conveying equipment. The high-pressure gas enters the transmission cylinder 3 through the air guide pipe 51 and enters the inner shell 12 through the air outlet, and then carries the waste residue inside the inner shell 12 out of the sewage discharge end 18, thereby realizing the rapid discharge of the waste residue, and the scraper 52 is driven to rotate by the driver 2, and the scraper 52 rotates to scrape off the waste residue remaining on the inner wall of the inner shell 12, thereby improving the cleaning and discharge effect of the waste residue.

[0029] Please refer to the attached Figure 4The cleaning assembly 5 also includes a counterweight column 53, which is inserted into the interior of the transmission cylinder 3. The top of the counterweight column 53 is connected to a connecting rod 54 through an axial rotation. The connecting rod 54 passes through the air outlet, and the other end of the connecting rod 54 is connected to the upper side wall of the scraper 52 through an axial rotation.

[0030] Specifically, the counterweight column 53 slides downward by its own gravity, and pulls the scraper 52 to rotate and retract toward the vertical center line of the distiller 1 through the connecting rod 54, so that when the waste water is stirred, the scraper 52 does not contact the inner shell 12, thereby reducing wear and extending the service life of the scraper 52. When the high-pressure gas flows, the gas pushes the counterweight column 53 to move upward, and the counterweight column 53 moves upward. The connecting rod 54 pushes the scraper 52 to expand and press against the inner wall of the inner shell 12 for cleaning.

[0031] Please see attached Figure 3 -Attached Figure 4 A sealing piston ring 55 is fixedly provided on the outer wall of the counterweight column 53, and a sealing ring is fixedly provided on the surface of the sealing piston ring 55 to improve the sealing effect with the air guide tube 51. A solenoid valve 1 is fixedly provided at the bottom end of the air guide tube 51, and the controller is electrically connected to the solenoid valve 1.

[0032] Specifically, when the counterweight column 53 slides down, it drives the sealing piston ring 55 to be inserted into the interior of the air duct 51. By closing the solenoid valve 1, the area between the sealing piston ring 55 and the solenoid valve 1 inside the air duct 51 remains sealed, and the counterweight column 53 remains fixed due to the air pressure difference, thereby preventing the scraper 52 from unfolding due to excessive centrifugal force when the scraper 52 rotates, improving the stability of the scraper 52 when it is retracted, and preventing steam from flowing out through the air duct 51.

[0033] Please see attached Figure 2 -Attached Figure 3 An exhaust port 15 is fixedly provided on the top of the outer shell 11, two groups of partition layers 16 are fixedly provided between the outer shell 11 and the inner shell 12, a flow port 19 is fixedly provided on the surface of the upper partition layer 16, a solenoid valve four is fixedly provided on the surface of the flow port 19, a liquid discharge port 17 is fixedly provided on the surface of the outer shell 11, a solenoid valve three is fixedly provided on the surface of the liquid discharge port 17, and the controller is electrically connected to the solenoid valve three and the solenoid valve four.

[0034] Specifically, water vapor enters the outer shell 11 through the exhaust hole 14 and is discharged from the exhaust terminal 15 , and water screwed inside the outer shell 11 is discharged through the drain terminal 17 .

[0035] Please see attached Figure 5 -Attached Figure 7The top of the inner shell 12 and the transmission cylinder 3 are equipped with a separation assembly 6, which includes a separation cylinder 601, which is located above the exhaust hole 14, and the bottom end of the separation cylinder 601 is fixedly connected to the inner shell 12, and the upper inner wall of the separation cylinder 601 is fixedly connected with a perforated plate 602, and the bottom end of the perforated plate 602 is fixedly connected with a moisture adsorption layer 603, and the moisture adsorption layer 603 is made of sponge material. The outer shell 11 is made of a material with good thermal insulation performance to reduce the loss of heat inside the distiller 1. The lower half of the inner shell 12 is made of a material with good thermal conductivity, so that the high-temperature water on the surface of the lower separation layer 16 can conduct heat to the wastewater inside the inner shell 12 through the lower half of the inner shell 12, and the upper half of the inner shell 12 is made of a material with good thermal insulation performance. When the condensed water stays on the upper separation layer 16, the heat transfer is reduced through the upper half of the inner shell 12 to prevent the condensed water from evaporating again. The upper separation layer 16 is located at the intersection of the lower half and the lower half of the inner shell 12, and the center of the orifice plate 602 is penetrated. A rotating shaft 604 is provided through the outer shell 11, the top of the rotating shaft 604 is rotatably connected to the inner wall of the outer shell 11, the rotating shaft 604 passes through the moisture adsorption layer 603, the top of the rotating shaft 604 is transmission-connected to the transmission cylinder 3 through a reduction transmission mechanism, and the bottom end of the rotating shaft 604 is fixedly connected to a reciprocating screw 606, the bottom end of the reciprocating screw 606 is rotationally connected to the inner shell 12, the surface of the reciprocating screw 606 is threadedly connected to an internal thread ring 607, the outer wall of the internal thread ring 607 is slidably connected to the separation cylinder 601, and the inner An extrusion piston ring 608 and a connecting cylinder 609 are arranged above the threaded ring 607 from top to bottom. Sealing rings are fixedly arranged on the inner and outer walls of the extrusion piston ring 608 respectively, for improving the sealing performance at the intersection with the separation cylinder 601 and the rotating shaft 604. The rotating shaft 604 passes through the extrusion piston ring 608 and the connecting cylinder 609. Flow holes 610 are opened on the surfaces of the extrusion piston ring 608 and the inner threaded ring 607. Several groups of temperature sensor modules are fixedly arranged inside the inner shell 12 and the outer shell 11 respectively.

[0036] Specifically, water vapor enters the interior of the separation cylinder 601 through the exhaust hole 14, and the moisture in the water vapor is adsorbed by the moisture adsorption layer 603. When the transmission cylinder 3 rotates, the rotating shaft 604 is driven to rotate through the speed reduction transmission mechanism. The rotating shaft 604 drives the reciprocating lead screw 606 to rotate, and the reciprocating lead screw 606 drives the internal thread ring 607 to reciprocate up and down. When the internal thread ring 607 moves upward, it drives the extrusion piston ring 608 and the connecting cylinder 609 to move upward, so that the extrusion piston ring 608 cooperates with the orifice plate 602 to squeeze the moisture inside the moisture adsorption layer 603 upward and extrude it from the orifice plate 602. Since the temperature in the top area of the inner housing 12 is lower than that in the lower area, the moisture in the water vapor will condense and stay in the outer housing 11, and gradually fall and gather above the upper partition layer 16. When adding wastewater subsequently, the solenoid valve four is opened, so that the wastewater flows downward through the circulation port 19 and onto the lower partition layer 16, and conducts heat on the wastewater through the lower half area of the inner housing 12, thereby accelerating the heating of the wastewater. The temperature of the wastewater in the inner housing 12 and the temperature of the high-temperature water inside the outer housing 11 are detected by the temperature sensor module. When the temperature of the high-temperature water is close to the temperature of the wastewater, the controller opens the solenoid valve three, so that the water flow inside the outer housing 11 is discharged through the liquid discharge end 17, avoiding absorbing the temperature of the wastewater and leaving space for subsequent collection of the moisture in the wastewater, achieving the effect of further utilizing the heat energy of distilled water and accelerating the heating of the wastewater.

[0037] Please refer to the appendix Figure 8 , a one-way valve 614 is fixedly arranged on the inner wall of the circulation hole 610 on the surface of the extrusion piston ring 608, and an extrusion column 611 is fixedly connected inside the circulation hole 610 on the surface of the internal thread ring 607.

[0038] Specifically, the one-way valve 614 is used to control the unidirectional upward passage of air flow through the circulation hole 610, so that water vapor passes through the extrusion piston ring 608 from the circulation hole 610.

[0039] Please refer to the appendix Figure 7 , a cover plate 7 is installed below the exhaust hole 14, and air holes are formed on the surface of the cover plate 7, so that the extrusion piston ring 608 squeezes the moisture adsorption layer 603, and water vapor enters the separation cylinder 601 through the air holes to avoid generating a pressure difference. A sealing ring is fixedly arranged on the upper surface of the cover plate 7, and the cover plate 7 is rotatably connected to the inner housing 12 through a torsion spring rotating shaft. During the initial installation, the heights of multiple extrusion piston rings 608 are different.

[0040] Specifically, when the internal thread ring 607 is located below, the bottom end of the extrusion column 611 pushes open the cover plate 7, enabling water vapor to pass through the exhaust hole 14. When the internal thread ring 607 is located above and the extrusion piston ring 608 is about to extrude the moisture adsorption layer 603, the bottom end of the extrusion column 611 is higher than the cover plate 7. The cover plate 7 closes and blocks the water vapor by the torsion force of the torsion spring rotating shaft, reducing the flow rate of the water vapor. When the moisture adsorption layer 603 is extruded, the water vapor passing through the exhaust hole 14 is not sufficient to open the one-way valve 614. When the extrusion piston ring 608 extrudes the moisture adsorption layer 603, the one-way valve 614 closes, preventing the water flow extruded from the moisture adsorption layer 603 from flowing back downward through the extrusion piston ring 608 and causing the problem of repeated adsorption.

[0041] Please refer to the appendix Figure 5 , the speed reduction transmission mechanism includes a large gear 612 and a small gear 613 that are meshed and connected. The small gear 613 is fixedly installed on the outer wall of the transmission cylinder 3, and the large gear 612 is fixedly installed on the outer wall of the rotating shaft 604.

[0042] Specifically, since the rotation speed of the transmission cylinder 3 is relatively fast, when the transmission cylinder 3 drives the rotating shaft 604 through the small gear 613 and the large gear 612, the rotation speed of the rotating shaft 604 will be reduced, reducing the number of times the extrusion piston ring 608 extrudes the moisture adsorption layer 603 per unit time, and prolonging the adsorption duration and service life of the moisture adsorption layer 603.

[0043] Please refer to the appendix Figure 9 , a sealing cover 9 is installed below the exhaust hole 14. A sealing ring is fixedly provided at the top end of the sealing cover 9. The sealing effect is improved by the sealing ring when the sealing cover 9 abuts against the inner housing 12. The inner top wall of the sealing cover 9 is fixedly connected with a telescopic rod 10, and the top end of the telescopic rod 10 is fixedly connected with the inner housing 12. The upper side wall of the transmission cylinder 3 passes through the air outlet and is slidably connected with a T-shaped extrusion member 4.

[0044] Specifically, when cleaning the waste residue, the high-pressure gas pushes the counterweight column 53 upward. The counterweight column 53 pushes the extrusion member 4 upward. The extrusion member 4 pushes the top end of the sealing cover 9 to tightly abut against the inner top wall of the inner housing 12, thereby blocking the exhaust hole 14, preventing the high-pressure gas from leaking through the exhaust hole 14 and causing waste, and at the same time preventing the waste residue from entering the outer housing 11. When the input of the high-pressure gas stops, the sealing cover 9 drives the telescopic rod 10 to extend under its own gravity, and thus no longer blocks the exhaust hole 14.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for plasticizer production, comprising a distiller (1), characterized in that: The distiller (1) includes an outer casing (11) and an inner casing (12). A heater is fixedly arranged at the bottom of the inner casing (12). A liquid inlet end (13) is fixedly arranged on the upper side wall of the inner casing (12). A plurality of exhaust holes (14) are fixedly arranged on the surface of the inner casing (12). A sewage discharge end (18) is fixedly arranged at the bottom of the inner casing (12). A driver (2) is fixedly connected to the top of the outer casing (11). A driving end of the driver (2) is fixedly connected to a transmission cylinder (3). Stirring blades are fixedly arranged on the outer wall of the transmission cylinder (3). A cleaning assembly (5) is installed on the surface of the transmission cylinder (3). The cleaning assembly (5) includes an air guide pipe (51) and a scraping plate (52). One end of the air guide pipe (51) is inserted into the interior of the transmission cylinder (3), and the other end of the air guide pipe (51) penetrates through the sewage discharge end (18) and extends to the outside and is fixedly connected to a high-pressure gas delivery device. An air outlet is formed on the upper side wall of the transmission cylinder (3). The bottom end of the scraping plate (52) is rotatably connected to the bottom end of the transmission cylinder (3) through a shaft.

2. The wastewater treatment device for plasticizer production according to claim 1, characterized in that: The cleaning assembly (5) further includes a counterweight column (53). The counterweight column (53) is inserted into the interior of the transmission cylinder (3). The top end of the counterweight column (53) is rotatably connected to a connecting rod (54) through a shaft. The other end of the connecting rod (54) is rotatably connected to the upper side wall of the scraping plate (52) through a shaft.

3. The wastewater treatment device for plasticizer production according to claim 2, characterized in that: A sealing piston ring (55) is fixedly arranged on the outer wall of the counterweight column (53). A solenoid valve I is fixedly arranged at the bottom end of the air guide pipe (51).

4. The wastewater treatment device for plasticizer production according to claim 1, characterized in that: An exhaust end (15) is fixedly arranged at the top of the outer casing (11). Two upper and lower separation layers (16) are fixedly arranged between the outer casing (11) and the inner casing (12). A flow port (19) is fixedly arranged on the surface of the upper separation layer (16). A solenoid valve IV is fixedly arranged on the surface of the flow port (19). A liquid discharge end (17) is fixedly arranged on the surface of the outer casing (11). A solenoid valve III is fixedly arranged on the surface of the liquid discharge end (17).

5. The wastewater treatment device for plasticizer production according to claim 1, characterized in that: A separation assembly (6) is installed at the top of the inner casing (12) and the transmission cylinder (3). The separation assembly (6) includes a separation cylinder (601). The separation cylinder (601) is located above the exhaust holes (14), and the bottom end of the separation cylinder (601) is fixedly connected to the inner casing (12). A hole plate (602) is fixedly connected to the upper inner side wall of the separation cylinder (601). A water absorption layer (603) is fixedly connected to the bottom end of the hole plate (602).

6. The wastewater treatment device for plasticizer production according to claim 5, characterized in that: A rotating shaft (604) is penetratingly arranged at the center of the orifice plate (602). The top end of the rotating shaft (604) is in transmission connection with a transmission cylinder (3) through a speed reduction transmission mechanism. And the bottom end of the rotating shaft (604) is fixedly connected with a reciprocating lead screw (606). A female thread ring (607) is in threaded connection with the surface of the reciprocating lead screw (606). The outer wall of the female thread ring (607) is in sliding connection with a separation cylinder (601). And above the female thread ring (607), an extrusion piston ring (608) and a connecting cylinder (609) are arranged from top to bottom. The rotating shaft (604) penetrates through the extrusion piston ring (608) and the connecting cylinder (609). Flow holes (610) are formed on the surfaces of the extrusion piston ring (608) and the female thread ring (607).

7. The wastewater treatment device for plasticizer production according to claim 6, characterized in that: A one-way valve (614) is fixedly arranged on the inner wall of the flow hole (610) on the surface of the extrusion piston ring (608). An extrusion column (611) is fixedly connected inside the flow hole (610) on the surface of the female thread ring (607).

8. The wastewater treatment device for the production of plasticizers according to claim 5, wherein: A cover plate (7) is installed below the exhaust hole (14). The cover plate (7) is rotatably connected to the inner housing (12) through a torsion spring rotating shaft.

9. The wastewater treatment device for plasticizer production according to claim 6, characterized in that: The speed reduction transmission mechanism includes a large gear (612) and a small gear (613) which are meshed. The small gear (613) is fixedly installed on the outer wall of the transmission cylinder (3). The large gear (612) is fixedly installed on the outer wall of the rotating shaft (604).

10. The wastewater treatment device for plasticizer production according to claim 1, characterized in that: A sealing cover (9) is installed below the exhaust hole (14). A telescopic rod (10) is fixedly connected to the inner top wall of the sealing cover (9). The top end of the telescopic rod (10) is fixedly connected to the inner housing (12). A T-shaped extrusion part (4) is in sliding connection with the upper side wall of the transmission cylinder (3).

Images