A kind of oxfendazole production is with waste slag removal system

Abstract

This invention discloses a waste residue removal system for ethoxyfluorfen production, relating to the field of gas-liquid-solid separation technology. It includes an outer sleeve, an inner sleeve rotatably mounted inside the outer sleeve, and a vent pipe rotatably mounted inside the inner sleeve, through which air flows into the inner sleeve. A support pipe is fixedly mounted on the inner sleeve, and a driven gear is fixedly mounted on the support pipe, driving the inner sleeve to rotate. A second inclined surface is provided on the inner side of the outer sleeve, and a first inclined surface is provided on the inner side of the inner sleeve. An annular plate is fixedly mounted on the upper end of the outer sleeve, and the height of the outer sleeve is higher than that of the inner sleeve. Through this technical solution, steam from the ethoxyfluorfen production process is introduced into the inner sleeve. The rotation of the inner sleeve drives the steam, and the residue carried by the steam adheres to the first inclined surface and then falls between the outer and inner sleeves, thus separating the steam and residue.

Description

Technical Field

[0001] This invention relates to the field of gas-liquid-solid separation technology, and in particular to a waste residue removal system for ethoxyflufenicol production. Background Technology

[0002] Oxyfluorfen is a highly effective, broad-spectrum herbicide widely used in agriculture, primarily for controlling annual weeds and some perennial weeds. It is characterized by low toxicity, low residue, and environmental friendliness. Traditional herbicides suffer from high toxicity, large residues, and significant harm to non-target organisms and the environment. Oxyfluorfen, through its unique chemical structure and mechanism of action, effectively inhibits weed growth while maintaining high crop safety. However, the production process of oxyfluorfen is complex, involving multiple chemical reactions, including ethoxylation, fluorination, and etherification. This process generates waste residue, wastewater, and waste gas. Therefore, efficient and environmentally friendly synthesis of oxyfluorfen, along with solvent recovery and waste treatment, has been a key focus of technological improvement in this field. In existing technologies, residues are easily generated during production and carried over during distillation and condensation, affecting production quality. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention discloses a waste residue removal system for ethoxyfluorfen production, comprising an outer sleeve, an inner sleeve rotatably mounted inside the outer sleeve, and a vent pipe rotatably mounted inside the inner sleeve, through which air is supplied. A support pipe is fixedly mounted on the inner sleeve, and a driven gear is fixedly mounted on the support pipe, driving the inner sleeve to rotate. A second inclined surface is provided on the inner side of the outer sleeve, and a first inclined surface is provided on the inner side of the inner sleeve. An annular plate is fixedly mounted on the upper end of the outer sleeve, and the height of the outer sleeve is higher than that of the inner sleeve. Through this technical solution, steam from the ethoxyfluorfen production process is introduced into the inner sleeve. The rotation of the inner sleeve drives the steam, and the residue carried by the steam adheres to the first inclined surface and then falls between the outer and inner sleeves, thus separating the steam and the residue.

[0004] Furthermore, the lower side of the annular plate is an inclined surface that gradually decreases from the axis outwards, and a filter paperboard is fixedly installed at the upper end of the outer sleeve, covering the opening of the annular plate.

[0005] Furthermore, the first inclined surface gradually tilts away from the axis from bottom to top, while the second inclined surface gradually tilts closer to the axis from bottom to top. Through the above technical solution, the tilting can drive the residue to move in a preset direction. The residue first moves upward, then moves downward along the second inclined surface, and finally separates from the steam. The lighter residue will adhere to the filter paperboard, and the steam will pass through the filter paperboard to the next production process.

[0006] Furthermore, multiple outer fan blades are fixedly installed on the outer side of the inner sleeve, and multiple inner fan blades are fixedly installed on the inner side of the inner sleeve. Through the above technical solution, the outer and inner fan blades can drive the steam to rotate as the inner sleeve rotates, and the mixed waste residue adheres more tightly to the inner walls of the outer and inner sleeves due to centrifugal force.

[0007] Furthermore, a return spring is fixedly mounted on the support tube, and a sealing cover is fixedly mounted on the return spring, with the top end of the vent tube located inside the sealing cover.

[0008] Furthermore, the top of the sealed cover gradually slopes downwards from the inside out. A sliding shaft is fixedly mounted on the support tube, and a one-way hole is slidably mounted on the sliding shaft. The rotation of the inner sleeve causes the wedge block to move away from the axis, pushing the sealed cover upwards to form a gap between it and the inner sleeve. Through the above technical solution, when air is introduced into the inner sleeve, the rotation of the inner sleeve can open the sealed cover, and steam enters the inner sleeve from the bottom. When it is not rotating, the air supply stops, ensuring that the sealed cover and the bottom of the inner sleeve are tightly sealed.

[0009] Furthermore, a heating wire is fixedly installed at the center of the vent pipe, the heating wire extends into the inner sleeve, and a spiral heating wire is fixedly installed on the heating wire.

[0010] Furthermore, a sealing track is fixedly installed on the lower side of the outer sleeve, and a dust collection bin is slidably installed inside the sealing track. The lower end of the outer sleeve is provided with multiple one-way holes, and the dust collection bin is provided with ventilation holes. The dust collection bin moves downward to adsorb the waste residue inside the outer sleeve into the dust collection bin.

[0011] Furthermore, the lower end of the dust collection chamber is provided with multiple one-way holes, allowing the dust collection chamber to move upwards and discharge the waste residue inside. Through this technical solution, when the inner sleeve rotates, the dust collection chamber fits against the lower part of the outer sleeve, sealing off the one-way holes and preventing steam from escaping through them. When ventilation stops, the dust collection chamber moves up and down to suck out and collect the residue inside the outer sleeve.

[0012] Furthermore, the vent pipe is connected to a connecting pipe, a steam engine is mounted on one side of the connecting pipe, a rotating shaft is mounted on the steam engine's rotating shaft, a lifting cylinder is slidably mounted on the rotating shaft, a lifting rod is fixedly mounted on the upper end of the lifting cylinder, a lifting plate is fixedly mounted on the lower end of the lifting cylinder, a rotating rod is fixedly mounted on the top of the rotating shaft, a counterweight rod is hinged to the rotating rod, a counterweight ball is fixedly installed inside the lower end of the counterweight rod, a short rod is hinged to the counterweight rod, the short rod is hinged to the lifting rod, a right intermediate rod is hinged to the lower part of the lifting plate, a right connecting rod is hinged to the intermediate rod, and a valve is fixedly mounted on the connecting rod. In its natural state, the valve is tilted inside the connecting pipe.

[0013] The beneficial effects of this invention compared to the prior art are:

[0014] (1) Through the technical solution of the present invention, the steam in the production process of ethoxyfluorfen is introduced into the inner sleeve. The inner sleeve rotates and drives the steam. The residue carried by the steam will adhere to the first inclined surface and then fall between the outer sleeve and the inner sleeve, thus separating the steam and the residue.

[0015] (2) Through the technical solution of the present invention, the inclination can drive the residue to move in a preset direction. The residue first moves upward, then moves downward along the second inclination surface, and finally separates from the steam. The lighter residue will adhere to the filter paperboard, and the steam will pass through the filter paperboard to the next production process.

[0016] (3) Through the technical solution of the present invention, the outer fan blade and the inner fan blade can drive the steam to rotate by following the rotation of the inner sleeve. The mixed waste residue is more tightly attached to the inner wall of the outer sleeve and the inner sleeve due to centrifugal force.

[0017] (4) With the technical solution of the present invention, when the inner sleeve is ventilated, the inner sleeve can be rotated to open the sealing cover, and the steam enters the inner sleeve from the lower side. When it is not rotating, the ventilation is stopped to ensure that the sealing cover is in close contact with the bottom of the inner sleeve.

[0018] (5) Through the technical solution of the present invention, when the inner sleeve rotates, the dust collection bin fits against the lower part of the outer sleeve, sealing the one-way hole one to prevent steam from being discharged from the one-way hole one. When the ventilation stops, the dust collection bin moves up and down to suck out and collect the residue inside the outer sleeve. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a waste residue removal system for ethoxyflufenicol production according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of a waste residue removal system for ethoxyflufenicol production according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the inner sleeve of a waste residue removal system for ethoxyflufenicol production according to an embodiment of the present invention.

[0022] Figure 4 This is a partial schematic diagram of a waste residue removal system for ethoxyflufenicol production according to an embodiment of the present invention. Figure 1 .

[0023] Figure 5 This is a partial schematic diagram of a waste residue removal system for ethoxyflufenicol production according to an embodiment of the present invention. Figure 2 .

[0024] Figure 6 This is a side view of a waste residue removal system for ethoxyflufenicol production according to an embodiment of the present invention.

[0025] Figure 7 for Figure 6 Cross-sectional view at point BB.

[0026] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0027] Figure 9 This is a partial schematic diagram of a waste residue removal system for ethoxyflufenicol production according to an embodiment of the present invention. Figure 3 .

[0028] Figure 10 This is a partial schematic diagram of a waste residue removal system for ethoxyflufenicol production according to an embodiment of the present invention. Figure 4 .

[0029] Reference numerals: 1-Outer sleeve; 2-Extrusion plate; 3-Filter paperboard; 4-Inner sleeve; 5-Outer fan blade; 6-Inner fan blade; 7-First inclined surface; 8-Motor base; 9-Motor; 10-Driving gear; 11-Driven gear; 12-Support tube; 13-Wedge block; 14-Sliding shaft; 15-Reset spring; 16-Ventilation pipe; 17-Dust collection bin; 18-Sealed track; 19-Base; 20-Isolation strip; 21-One-way hole one; 22-Ventilation 23-One-way hole two; 24-Heating wire; 25-Spiral heating wire; 26-Enclosed cover; 27-Second inclined surface; 28-Electric cylinder; 29-Annular plate; 30-Outer leg; 31-Outer cover; 32-Connecting pipe; 33-Steam engine; 34-Lifting plate; 35-Connecting rod; 36-Intermediate rod; 37-Lifting cylinder; 38-Lifting rod; 39-Counterweight ball; 40-Counterweight rod; 41-Short rod; 42-Rotating shaft; 43-Rotating rod; 44-Valve. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figures 1-10As shown, a waste residue removal system for ethoxyfluorfen production is described. The ethoxyfluorfen production process mainly includes the following steps: First, 2,4-dichlorophenol and ethylene oxide are used as raw materials, and an ethoxylation reaction is carried out under the action of an alkaline catalyst (sodium hydroxide) to generate 2,4-dichlorophenoxyethanol. Next, through a fluorination reaction, 2,4-dichlorophenoxyethanol is reacted with a fluorinating agent (hydrogen fluoride or potassium fluoride) to generate 2,4-dichloro-5-fluorophenoxyethanol. Then, under alkaline conditions, 2,4-dichloro-5-fluorophenoxyethanol undergoes an etherification reaction with methyl chloroacetate to generate crude ethoxyfluorfen. After the reaction is completed, solid waste residue (catalyst residue and by-products) is removed by filtration or centrifugation, and the reaction mixture is washed with water and separated into aqueous and organic phases. The solvent (toluene or xylene) in the organic phase is recovered by distillation. During the distillation process, the mixture is heated in a distillation kettle to evaporate the solvent, and then the liquid solvent is recovered by cooling in a condenser. The recovered solvent can be reused. The residue after distillation is crystallized, filtered, and dried to obtain high-purity ethoxyfluorfen. Throughout the production process, waste gas is treated through condensation recovery and activated carbon adsorption, while wastewater and waste residue are treated in accordance with environmental protection requirements to ensure a safe and environmentally friendly production process.

[0032] like Figures 1-8 As shown, this system is installed before the condenser, including an outer sleeve 1, an inner sleeve 4 rotatably mounted inside the outer sleeve 1, a vent pipe 16 rotatably mounted inside the inner sleeve 4, the vent pipe 16 vents into the inner sleeve 4, a support pipe 12 is fixedly mounted on the inner sleeve 4, the vent pipe 16 is located inside the support pipe 12, the support pipe 12 and the vent pipe 16 are rotatably connected, a driven gear 11 is fixedly connected to the support pipe 12, and a motor is fixedly mounted on the lower side of the outer sleeve 1. A motor 9 is fixedly mounted on a motor base 8. A drive gear 10 is fixedly mounted on the rotating shaft of the motor 9. The drive gear 10 meshes with the driven gear 11, driving the driven gear 11 and the inner sleeve 4 to rotate. The driven gear 11 drives the inner sleeve 4 to rotate. A second inclined surface 27 is provided on the inner side of the outer sleeve 1, and a first inclined surface 7 is provided on the inner side of the inner sleeve 4. An annular plate 29 is fixedly mounted on the upper end of the outer sleeve 1, and the height of the outer sleeve 1 is higher than that of the inner sleeve 4. When the inner sleeve 4 rotates, the residue adheres to the first inclined surface 7 and moves upward. Since the outer sleeve 1 is higher, it leaves the inner sleeve 4 and adheres to the second inclined surface 27 on the inner wall of the outer sleeve 1. Through the above technical solution, the steam in the ethoxyfluorfen production process is introduced into the inner sleeve 4. The rotation of the inner sleeve 4 drives the steam, and the residue carried by the steam will adhere to the first inclined surface 7 and then fall between the outer sleeve 1 and the inner sleeve 4, thus separating the steam and the residue.

[0033] In this embodiment, the lower side of the annular plate 29 is inclined, gradually decreasing in elevation from the axis outwards. A filter paperboard 3 is fixedly mounted on the upper end of the outer sleeve 1, covering the opening of the annular plate 29. Steam gradually moves towards the center through the inclined surface of the annular plate 29. The opening in the middle of the annular plate 29 is sealed by the filter paperboard 3 and fixed by the compression plate 2. Steam is discharged through the filter paperboard 3, and a condensation device is connected to the filter paperboard 3. Fine residues are adsorbed on the filter paperboard 3.

[0034] In this embodiment, the first inclined surface 7 gradually tilts away from the axis from bottom to top, while the second inclined surface 27 gradually tilts towards the axis from bottom to top. Through the above technical solution, the tilting can drive the residue to move in a preset direction. The residue first moves upward, then moves downward along the second inclined surface 27, and finally separates from the steam. The lighter residue will adhere to the filter paperboard 3, and the steam will pass through the filter paperboard 3 to the next production process.

[0035] In this embodiment, multiple outer fan blades 5 are fixedly mounted on the outer side of the inner sleeve 4. The outer fan blades 5 gradually narrow from bottom to top, conforming to the shape of the second inclined surface 27. Multiple inner fan blades 6 are fixedly mounted on the inner side of the inner sleeve 4. The residue adheres to the first inclined surface 7 and is driven to adhere more tightly by the inner fan blades 6, which also drive the residue to rotate. Through the above technical solution, the outer fan blades 5 and inner fan blades 6 can drive the steam to rotate by following the rotation of the inner sleeve 4. The mixed waste residue adheres more tightly to the inner walls of the outer sleeve 1 and the inner sleeve 4 due to centrifugal force.

[0036] In this embodiment, a return spring 15 is fixedly mounted on the support tube 12, and a sealing cover 26 is fixedly mounted on the return spring 15. The top end of the vent pipe 16 is located inside the sealing cover 26. Steam enters the sealing cover 26 from the vent pipe 16. When the internal pressure is high enough, the sealing cover 26 can be opened. In its natural state, the sealing cover 26 is in contact with the bottom of the inner sleeve 4. Specifically, the top end of the sealing cover 26 gradually slopes down from the inside to the outside. A sliding shaft 14 is fixedly mounted on the support tube 12, and a one-way hole 23 is slidably mounted on the sliding shaft 14. The rotation of the inner sleeve 4 drives the wedge block 13 away from the axis, pushing the sealing cover 26 upward to form a gap with the inner sleeve 4. There are four sliding shafts 14 in total, arranged in a cross shape. The diameter of the end of the sliding shaft 14 is slightly larger to prevent the wedge block 13 from sliding out of the sliding shaft 14. With the above technical solution, when air is introduced into the inner sleeve 4, the inner sleeve 4 can be rotated to open the sealing cover 26, and steam can enter the inner sleeve 4 from the lower side. When it is not rotating, the air supply is stopped to ensure that the sealing cover 26 is in close contact and sealed with the bottom of the inner sleeve 4.

[0037] In this embodiment, a heating wire 24 is fixedly mounted in the center of the vent pipe 16. The heating wire 24 extends into the inner sleeve 4, and a spiral heating wire 25 is fixedly mounted on the heating wire 24.

[0038] In this embodiment, the lower end of the inner sleeve 1 is a base 19, which fits against the lower part of the inner sleeve 4. An isolation strip 20 is fixedly installed on the base 19. The inner diameter of the isolation strip 20 is the same as the outer diameter of the inner sleeve 4, which provides a limit for the rotation of the inner sleeve 4. A sealing track 18 is fixedly installed on the lower side of the outer sleeve 1. A dust collection chamber 17 is slidably installed in the sealing track 18. A plurality of one-way holes 21 are provided at the lower end of the outer sleeve 1. A vent hole 22 is provided on the dust collection chamber 17. The dust collection chamber 17 moves downward to absorb the waste residue in the outer sleeve 1 into the dust collection chamber 17. An installation seat is fixedly installed at the lower end of the sealing track 18. An electric cylinder 28 is fixedly installed on the installation seat. The telescopic arm of the electric cylinder 28 drives the dust collection chamber 17 to slide up and down.

[0039] In this embodiment, the lower end of the dust collection chamber 17 is provided with multiple one-way holes 23. The dust collection chamber 17 moves upward to discharge the waste residue inside. Through the above technical solution, when the inner sleeve 4 rotates, the dust collection chamber 17 fits against the lower part of the outer sleeve 1, sealing the one-way holes 21 to prevent steam from escaping from the one-way holes 21. When the ventilation stops, the dust collection chamber 17 moves up and down to suck out and collect the residue inside the outer sleeve 1.

[0040] In this embodiment, the vent pipe 16 is connected to the connecting pipe 32. A steam engine 33 is mounted on one side of the connecting pipe 32. A rotating shaft 42 is mounted on the rotating shaft of the steam engine 33. A lifting cylinder 37 is slidably mounted on the rotating shaft 42. A lifting rod 38 is fixedly mounted on the upper end of the lifting cylinder 37. A lifting plate 34 is fixedly mounted on the lower end of the lifting cylinder 37. A rotating rod 43 is fixedly mounted on the top end of the rotating shaft 42. A counterweight rod 40 is hinged to the rotating rod 43. A counterweight ball 39 is fixedly installed inside the lower end of the counterweight rod 40. A short rod 41 is hinged to the counterweight rod 40. The short rod 41 is hinged to the lifting rod 38. A right intermediate rod 36 is hinged to the lower end of the lifting plate 34. A right connecting rod 35 is hinged to the intermediate rod 36. A valve 44 is fixedly mounted on the connecting rod 35. In its natural state, the valve 44 is tilted inside the connecting pipe 32. An outer cover 31 is installed on the connecting pipe 32.

[0041] Working principle: Support leg 30 acts as a support, directing steam from the ethoxyfluorfen production process to vent pipe 16. Then, energizing heating wire 24 causes spiral heating wire 25 to heat. Motor 9 is started, driving drive gear 10 to rotate. Driven gear 10 drives driven gear 11 to rotate, which in turn drives support pipe 12 to rotate. Support pipe 12 then drives inner sleeve 4 to rotate. The rotation of inner sleeve 4, through centrifugal force, causes wedge block 13 to move away from the axis, opening the closed cover 26 upwards via the inclined surface. Steam rises and is then discharged into inner sleeve 4 within closed cover 26. Simultaneously, spiral heating wire 25 heats the inner sleeve 4, preventing steam liquefaction. During this process, residues attached to the steam adhere to the first inclined surface 7 and move upwards. The fan blade 6 drives the residue to rotate. After the residue moves upward away from the inner sleeve 4, it adheres to the second inclined surface 27 of the outer sleeve 1. Since the lower diameter of the second inclined surface 27 is larger, the residue moves downward under the rotation and stirring of the outer fan blade 5, and finally falls to the lower part of the outer sleeve 1. At this time, the dust collection chamber 17 adheres to the lower part of the outer sleeve 1. Neither the residue nor the steam will be discharged downward from the one-way hole 21. Then the steam enters the external condenser through the filter paperboard 3. The fine residue is adsorbed in the filter paperboard 3. The rotation and ventilation are intermittent. When the ventilation stops, the dust collection chamber 17 moves downward quickly to form a negative pressure, adsorbing the residue at the bottom of the outer sleeve 1 into the dust collection chamber 17. Then the residue in the dust collection chamber 17 is quickly discharged downward through the one-way hole 23.

[0042] When steam passes through connecting pipe 32, it drives steam engine 33 to rotate. The rotation of steam engine 33 drives rotating shaft 42 and rotating rod 43. During rotation, counterweight ball 39 is subjected to centrifugal force and gradually moves outward. Then, through rotating rod 43, it drives lifting rod 38, lifting cylinder 37, and lifting plate 34 to slide upward. Lifting plate 34 drives intermediate rod 36 and connecting rod 35. Connecting rod 35 drives valve 44 to be in a horizontal state within connecting pipe 32. If the reaction intensifies at this time, the amount of steam increases, and the speed of steam engine 33 increases. At this time, it drives counterweight ball 39 to go higher, and lifting cylinder 37 continues to move upward, driving valve 44 to rotate and become tilted, reducing the passage of steam. As a result, the speed of steam engine 33 will slow down, thus achieving equilibrium. When the reaction intensifies, valve 44 tilts and the opening becomes smaller; when the reaction decreases, the opening becomes larger, thus playing a balancing role.

[0043] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A waste residue removal system for ethoxyflufenicol production, characterized in that, The device includes an outer sleeve (1), an inner sleeve (4) rotatably mounted inside the outer sleeve (1), a vent pipe (16) rotatably mounted inside the inner sleeve (4), the vent pipe (16) vents into the inner sleeve (4), a support pipe (12) is fixedly mounted on the inner sleeve (4), a driven gear (11) is fixedly mounted on the support pipe (12), the driven gear (11) drives the inner sleeve (4) to rotate, a second inclined surface (27) is provided on the inner side of the outer sleeve (1), a first inclined surface (7) is provided on the inner side of the inner sleeve (4), an annular plate (29) is fixedly mounted on the upper end of the outer sleeve (1), and the height of the outer sleeve (1) is higher than that of the inner sleeve (4). The lower side of the annular plate (29) is an inclined surface, which gradually decreases from the axis to the outside. The upper end of the outer sleeve (1) is fixedly equipped with a filter paperboard (3), which covers the opening of the annular plate (29). The first inclined surface (7) gradually tilts away from the axis from bottom to top, and the second inclined surface (27) gradually tilts closer to the axis from bottom to top; Multiple outer fan blades (5) are fixedly mounted on the outer side of the inner sleeve (4), and multiple inner fan blades (6) are fixedly mounted on the inner side of the inner sleeve (4). A return spring (15) is fixedly mounted on the support tube (12), and a sealing cover (26) is fixedly mounted on the return spring (15). The top end of the vent tube (16) is located inside the sealing cover (26). The top of the inner part of the closed cover (26) gradually slopes down from the inside to the outside. A sliding shaft (14) is fixedly installed on the support tube (12). A one-way hole (23) is slidably installed on the sliding shaft (14). The inner sleeve (4) rotates and drives the wedge block (13) away from the axis, pushing the closed cover (26) to move upward and forming a gap between it and the inner sleeve (4).

2. The waste residue removal system for ethoxyflufenicol production according to claim 1, characterized in that, A heating wire (24) is fixedly installed in the center of the vent pipe (16). The heating wire (24) extends into the inner sleeve (4). A spiral heating wire (25) is fixedly installed on the heating wire (24).

3. The waste residue removal system for ethoxyfluorfen production according to claim 2, characterized in that, A sealing track (18) is fixedly installed on the lower side of the outer sleeve (1), and a dust collection chamber (17) is slidably installed inside the sealing track (18). Multiple one-way holes (21) are provided at the lower end of the outer sleeve (1), and a ventilation hole (22) is provided on the dust collection chamber (17). The dust collection chamber (17) moves downward to adsorb the waste residue inside the outer sleeve (1) into the dust collection chamber (17).

4. The waste residue removal system for ethoxyfluorfen production according to claim 3, characterized in that, The lower end of the dust collection bin (17) is provided with multiple one-way holes (23), and the dust collection bin (17) moves upward to discharge the waste residue inside the dust collection bin (17).

5. The waste residue removal system for ethoxyflufenicol production according to claim 4, characterized in that, The vent pipe (16) is connected to a connecting pipe (32). A steam engine (33) is mounted on one side of the connecting pipe (32). A rotating shaft (42) is mounted on the rotating shaft of the steam engine (33). A lifting cylinder (37) is slidably mounted on the rotating shaft (42). A lifting rod (38) is fixedly mounted on the upper end of the lifting cylinder (37). A lifting plate (34) is fixedly mounted on the lower end of the lifting cylinder (37). A rotating rod (43) is fixedly mounted on the top end of the rotating shaft (42). A counterweight rod (40) is hinged to the upper part, and a counterweight ball (39) is fixedly installed at the lower end of the counterweight rod (40). A short rod (41) is hinged to the upper part of the counterweight rod (40), and the short rod (41) is hinged to the lifting rod (38). The right middle rod (36) is hinged to the lower part of the lifting plate (34), and the right connecting rod (35) is hinged to the middle rod (36). A valve (44) is fixedly installed on the connecting rod (35). In the natural state, the valve (44) is tilted inside the connecting pipe (32).

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