Organic solvent waste utilization and recovery device

Abstract

The invention discloses an organic solvent waste utilization and recovery device, and relates to the field of organic solvent recovery. According to the scheme, the device comprises a heating kettle used for heating an organic solvent; the fractionating tower is used for multi-stage distillation of the organic solvent and comprises a tower body, and an inner cavity of the tower body is communicated with an inner cavity of the heating kettle; the tower plate is fixed in the tower body, a liquid receiving groove is formed in one side of the tower plate, a downcomer is fixed on the other side of the tower plate, and an overflow weir is connected in the downcomer in a sliding manner; the bubble cap is fixed on the tower plate, an adjusting cover is rotatably connected in the bubble cap, a driving assembly is assembled at the top of the adjusting cover, and the driving assembly is used for driving the adjusting cover to rotate; the steam flux can be dynamically adjusted by controlling the hole overlap ratio of the adjusting cover and the bubble cap, the gas-liquid balance is ensured by adjusting the height of the overflow weir and controlling the flow speed of the organic solvent, the conditions of liquid leakage and the like are avoided, and the recovery effect is improved.

Description

Technical Field

[0001] The invention relates to the field of organic solvent recovery, in particular to an organic solvent waste utilization and recovery device. Background Art

[0002] Organic solvents are widely used in the chemical, pharmaceutical, and electronic industries. However, if the waste liquid generated during their use is directly discharged, it will not only cause a waste of resources, but also cause serious environmental pollution problems. At present, the industry generally uses distillation towers to recycle organic solvent waste liquids and separate and purify components through distillation. However, traditional distillation towers face the following technical bottlenecks in actual operation: For example, the publication number: CN119548944A discloses an organic solvent recovery device, which includes components such as a pretreatment mechanism, an adsorption mechanism and a steam furnace; At present, there are some problems with fractionation towers. Conventional plates (such as sieve plates and floating valve plates) have fixed structures, and the bubble cap opening area cannot be adjusted, which cannot meet the dynamic separation requirements of solvents with different boiling points. For example, when treating high-viscosity or coking-prone waste liquid, the fluctuation of steam flux can easily lead to uneven distribution of gas and liquid phases in the tower, causing flooding or leakage, and reducing separation efficiency. Secondly, the height of the traditional overflow weir is fixed, and it is impossible to adjust the downcomer flow in real time according to the change of the liquid level in the tower. When the feed components are complex or the flow fluctuates, the liquid holding capacity of the tower plate is difficult to stabilize, and the gas-liquid contact time is insufficient, resulting in the entrainment of light components or the residue of heavy components, affecting the purity of the product.

[0003] In order to maintain the separation effect, the existing technology often solves the gas-liquid imbalance problem by adjusting the external heating power or the reflux ratio, which leads to a significant increase in energy consumption. In addition, the tower plate needs to be shut down for cleaning after being blocked or scaled, which further reduces the equipment utilization rate. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide an organic solvent waste utilization and recovery device to achieve real-time adjustment of gas-liquid flow rate and ensure gas-liquid balance.

[0005] In order to achieve the above technical objectives, the present invention provides an organic solvent waste utilization and recovery device, comprising: A heating kettle, used for heating the organic solvent; A fractionating tower is used for multi-stage distillation of an organic solvent, and the fractionating tower comprises: A tower body, wherein the inner cavity of the tower body is connected with the inner cavity of the heating kettle; A tower plate is fixed in the tower body, a liquid receiving tank is provided on one side of the tower plate, a downcomer is fixed on the other side of the tower plate, and an overflow weir is slidably connected in the downcomer; The bubble cap is fixed on the tower plate, an adjusting cover is rotatably connected inside the bubble cap, and a driving component is assembled on the top of the adjusting cover, and the driving component is used to drive the adjusting cover to rotate.

[0006] Preferably, the rotating assembly includes: a fixed seat fixed on the bubble cap; a synchronous shaft rotatably connected to the fixed seat; a driving shaft rotatably connected to the fixed seat; a driven worm gear fixed to the end of the adjusting cover, a synchronous worm is fixed to the outer surface of the synchronous shaft, and the synchronous worm is meshed with the driven worm gear; a driving worm is fixed to the outer surface of the driving shaft, a synchronous worm gear is fixed to the outer surface of the synchronous shaft, and the driving worm is meshed with the synchronous worm gear, a second motor is fixed to the outer surface of the tower body, and the output end of the second motor is fixedly connected to the end of the driving shaft.

[0007] Preferably, a rack is fixed on the outer surface of the overflow weir, a first motor is fixed on the outer surface of the tower body, an adjusting gear is fixed on the output end of the first motor, and the adjusting gear is meshed with the rack.

[0008] Preferably, a stirring shaft is rotatably connected inside the heating kettle, a reciprocating screw is rotatably connected to the bottom of the stirring shaft, a partition is fixed inside the heating kettle, the partition divides the heating kettle into a first chamber and a second chamber in upper and lower parts, and the middle part of the partition is hollow; a screw barrel is threadedly connected to the outer surface of the reciprocating screw barrel, a filter plate is fixed to the outer surface of the screw barrel, and the outer periphery of the filter plate is vertically slidingly and sealingly connected to the inner wall of the heating kettle.

[0009] Preferably, a feed pipe for feeding is fixed on the upper surface of the heating kettle, and a discharge pipe for discharging is fixed on the side of the heating kettle, and both the feed pipe and the discharge pipe are connected to the first chamber; a stirring motor is fixed on the top of the heating kettle, and the output end of the stirring motor is connected and fixed to the stirring shaft.

[0010] Preferably, the outer surface of the screw barrel is telescopically connected to a liquid inlet barrel, the filter plate is fixed on the liquid inlet barrel, a first spring is provided between the screw barrel and the liquid inlet barrel, and two ends of the first spring are respectively against the screw barrel and the liquid inlet barrel.

[0011] Preferably, the liquid inlet cylinder is connected from top to bottom, and a valve plate is hinged at the bottom of the liquid inlet cylinder, the valve plate is used to close the bottom of the liquid inlet cylinder, and a torsion spring is fixed at the hinge point between the valve plate and the liquid inlet cylinder, and the torsion spring is used to provide a reset elastic force for the valve plate.

[0012] Preferably, a clutch assembly for controlling the linkage between the stirring shaft and the reciprocating screw is fixed between the stirring shaft and the reciprocating screw.

[0013] Preferably, the clutch assembly includes: a connecting seat, fixed on the partition, and the stirring shaft is rotatably connected to the connecting seat; an electromagnet, fixed to the surface of the sleeve; a sleeve, slidably connected to the reciprocating screw, and the adjacent ends of the stirring shaft and the reciprocating screw are evenly fixed with protrusions that cooperate with the sleeve; a valve seat, rotatably connected to the sleeve, and the valve seat is used to close the hollow part on the partition; a second spring, the two ends of which are respectively against the electromagnet and the valve seat.

[0014] Preferably, a discharge port is provided at the bottom of the heating kettle.

[0015] It can be seen from the above technical solutions that the present application has the following beneficial effects: By controlling the overlap between the openings of the regulating cover and the bubble cap, the steam flux can be dynamically adjusted. The regulating gear is driven by the first motor to rotate, and the regulating gear can move the rack to adjust the height of the overflow weir and control the flow rate of the organic solvent. By controlling the flow rate of the organic solvent and the steam flux, the gas-liquid balance can be ensured, leakage can be avoided, and the recovery effect can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the front view of an organic solvent waste utilization and recovery device provided by the present invention;

[0018] Figure 2 A partial cross-sectional structural schematic diagram of a distillation tower of an organic solvent waste utilization and recovery device provided by the present invention;

[0019] Figure 3 A schematic diagram of the front cross-sectional structure of a distillation tower of an organic solvent waste utilization and recovery device provided by the present invention;

[0020] Figure 4 This is an enlarged structural schematic diagram of position A of an organic solvent waste utilization and recovery device provided by the present invention;

[0021] Figure 5 This is an enlarged structural schematic diagram of position B of an organic solvent waste utilization and recovery device provided by the present invention;

[0022] Figure 6 A schematic diagram of the front view and cross-section structure of a heating kettle of an organic solvent waste utilization and recovery device provided by the present invention;

[0023] Figure 7 A schematic diagram of a partial cross-sectional structure of a barrel and a clutch assembly of an organic solvent waste utilization and recovery device provided by the present invention;

[0024] Figure 8 A schematic diagram of the structure of a valve seat in an open state of an organic solvent waste utilization and recovery device provided by the present invention;

[0025] Fig. 9 The present invention provides a schematic cross-sectional structural diagram of a clutch assembly of an organic solvent waste utilization and recovery device.

[0026] Description of the drawings: 1. Heating kettle; 11. Feed pipe; 12. Discharge pipe; 13. Stirring motor; 2. Stirring shaft; 21. Reciprocating screw rod; 3. Partition plate; 4. Screw barrel; 41. Liquid inlet barrel; 42. First spring; 43. Valve plate; 5. Filter plate; 6. Clutch assembly; 61. Connecting seat; 62. Electromagnet; 63. Sleeve; 64. Valve seat; 65. Second spring; 7. Fractionating tower; 71. Tower body; 7 2. Tower plate; 721. Liquid receiving tank; 722. Ventilation pipe; 73. Downcomer; 731. Overflow weir; 7311. Rack; 74. First motor; 741. Adjusting gear; 75. Second motor; 8. Bubble cap; 81. Adjusting cap; 811. Driven worm gear; 82. Fixed seat; 83. Synchronous shaft; 831. Synchronous worm; 832. Synchronous worm gear; 84. Driving shaft; 841. Driving worm. DETAILED DESCRIPTION

[0027] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, and use. It should be understood that in all of these figures, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may be exaggerated to illustrate the relevant details or structures of the embodiments of the present disclosure.

[0028] Example 1, see Figure 1 - Fig. 9 As shown, it includes: a heating kettle 1, which is used to heat the organic solvent; a distillation tower 7, which is used for multi-stage distillation of the organic solvent, and the distillation tower 7 includes: a tower body 71, the inner cavity of the tower body 71 is connected to the inner cavity of the heating kettle 1; a tower plate 72, which is fixed in the tower body 71, and a liquid receiving tank 721 is provided on one side of the tower plate 72, and a downcomer 73 is fixed on the other side of the tower plate 72, and an overflow weir 731 is slidably connected in the downcomer 73; a bubble cap 8, which is fixed on the tower plate 72, and an adjusting cover 81 is rotatably connected in the bubble cap 8, and a driving component is assembled on the top of the adjusting cover 81, and the driving component is used to drive the adjusting cover 81 to rotate.

[0029] Further, the rotating assembly includes: a fixed seat 82, fixed on the bubble cap 8; a synchronous shaft 83, rotatably connected to the fixed seat 82; a driving shaft 84, rotatably connected to the fixed seat 82; a driven worm wheel 811, fixed to the end of the adjustment cover 81, a synchronous worm 831 is fixed to the outer surface of the synchronous shaft 83, and the synchronous worm 831 is meshed with the driven worm wheel 811; a driving worm 841 is fixed to the outer surface of the driving shaft 84, a synchronous worm wheel 832 is fixed to the outer surface of the synchronous shaft 83, and the driving worm 841 is meshed with the synchronous worm wheel 832, and a second motor 75 is fixed to the outer surface of the tower body 71, and the output end of the second motor 75 is fixedly connected to the end of the driving shaft 84; Exemplarily, the second motor 75 drives the driving shaft 84 to rotate, and the driving shaft 84 drives the synchronous worm gear 832 to rotate through the driving worm 841, and the synchronous worm gear 832 can drive the synchronous shaft 83 to rotate, and the synchronous shaft 83 drives the adjusting cover 81 to rotate through the synchronous worm 831 and the driven worm gear 811, thereby controlling the overlap of the holes on the surface of the adjusting cover 81 and the holes on the surface of the bubble cap 8, thereby controlling the discharge speed of the steam.

[0030] Specifically, a rack 7311 is fixed to the outer surface of the overflow weir 731, a first motor 74 is fixed to the outer surface of the tower body 71, an adjusting gear 741 is fixed to the output end of the first motor 74, and the adjusting gear 741 is meshed with the rack 7311; Exemplarily, the first motor 74 drives the adjusting gear 741 to rotate, and the adjusting gear 741 can move the rack 7311, thereby adjusting the height of the overflow weir 731 and controlling the flow rate of the organic solvent.

[0031] See also Figure 6 As shown, a stirring shaft 2 is rotatably connected in the heating kettle 1, stirring blades are evenly fixed on the outer surface of the stirring shaft 2, a feeding pipe 11 for feeding is fixed on the upper surface of the heating kettle 1, and a discharging pipe 12 for discharging is fixed on the side of the heating kettle 1; a stirring motor 13 is fixed on the top of the heating kettle 1, and the output end of the stirring motor 13 is connected and fixed to the stirring shaft 2; For example, the initial organic solvent first enters the tower body 71, and after the organic solvent reaches the bottom, it is added to the heating kettle 1 from the feed pipe 11, and the stirring motor 13 drives the stirring shaft 2 to rotate, stirring the organic solvent, so that the organic solvent is fully heated, and the generated gas after heating is sent to the tower body 71 through the discharge pipe 12, and the steam passes upward through the vent pipe 722, and then the steam in the bubble 8 is dispersed and discharged from the opening on the surface of the bubble 8, and the steam then heats the organic solvent flowing on the tower plate 72, see Figure 3 As shown, the organic solvent flows through multiple tower plates 72 in an S-shaped path from top to bottom, and is heated and distilled multiple times. The distilled gas is discharged into the condenser from the top of the tower body 71, and the components in the organic solvent are obtained after condensation. The specific condensation structure and principle are known public technologies and will not be elaborated on here.

[0032] For further information, see Figure 6 and Fig. 9 As shown, a partition 3 is fixed in the heating kettle 1, dividing the heating kettle 1 into a first chamber and a second chamber from top to bottom, the feed pipe 11 and the discharge pipe 12 are both connected to the first chamber, and the organic solvent is heated in the first chamber. A reciprocating screw 21 is fixed at the bottom of the stirring shaft 2, and a screw barrel 4 is threadedly connected to the outer surface of the reciprocating screw 21. When the reciprocating screw 21 rotates and the screw barrel 4 remains stationary, it will reciprocate on the reciprocating screw 21. A filter plate 5 is fixed on the screw barrel 4, and the outer periphery of the filter plate 5 is vertically slidably sealed and connected to the heating kettle 1, that is, the filter plate 5 can It moves vertically in the second chamber, and limits the screw barrel 4 to prevent the screw barrel 4 from rotating with the reciprocating screw rod 21. The filter plate 5 is evenly provided with filter holes on its surface to filter out solids in the organic solvent. The middle of the partition plate 3 is hollowed out to connect the first chamber and the second chamber. The organic solvent in the first chamber flows into the second chamber through the hollow part in the middle of the partition plate 3. The filter plate 5 reciprocates up and down to squeeze the solids at the bottom of the heating kettle 1. The organic solvent is filtered to the top of the filter plate 5 and can flow back to the first chamber through the hollow part in the middle of the partition plate 3 to continue heating. Furthermore, Figure 3 and Figure 4 As shown, the outer surface of the screw barrel 4 is telescopically connected with a liquid inlet cylinder 41, and the filter plate 5 is fixed on the liquid inlet cylinder 41. A first spring 42 is provided between the screw barrel 4 and the liquid inlet cylinder 41. The two ends of the first spring 42 are respectively against the screw barrel 4 and the liquid inlet cylinder 41. The liquid inlet cylinder 41 is telescopically connected to the screw barrel 4, and the distance between the filter plate 5 and the bottom of the heating kettle 1 can be changed; Exemplarily, if the amount of solid matter between the filter plate 5 and the heating kettle 1 exceeds the minimum distance between the filter plate 5 and the bottom of the heating kettle 1, the filter plate 5 can move upward with the liquid inlet cylinder 41, thereby increasing the minimum distance between the filter plate 5 and the bottom of the heating kettle 1 and increasing the amount of solid matter that can be compressed at a single time.

[0033] See attached Figure 3 and attached Figure 4 As shown, the liquid inlet cylinder 41 is connected from top to bottom and is used to pass the organic solvent into the second chamber, and a valve plate 43 is hinged at the bottom of the liquid inlet cylinder 41, and the valve plate 43 is used to close the bottom of the liquid inlet cylinder 41. A torsion spring is fixed at the hinge point between the valve plate 43 and the liquid inlet cylinder 41, and the torsion spring is used to provide a reset elastic force for the valve plate 43, so that the valve plate 43 can always remain as shown when no external force is applied. Figure 3 Status shown; For example, when the liquid inlet cylinder 41 moves downward with the filter plate 5, the valve plate 43 is pushed upward from the bottom, so that the valve plate 43 is pressed on the liquid inlet cylinder 41, and the organic solvent can only be filtered out upward through the filter plate 5, and the solid matter remains between the filter plate 5 and the heating kettle 1. When the liquid inlet cylinder 41 moves upward with the filter plate 5, the valve plate 43 is pushed downward from the top, and the valve plate 43 is pushed open. Figure 4 As shown, the organic solvent in the first chamber is sequentially passed through the hollowed-out portion of the partition plate 3 , the liquid inlet cylinder 41 , the filter plate 5 , and the bottom of the heating kettle 1 .

[0034] A discharge port is provided at the bottom of the heating kettle 1, and the discharge port is opened and closed by a solenoid valve to discharge solid matter in the organic solvent.

[0035] Example 2, see Figure 7 , Figure 8 and Fig. 9 As shown, based on Example 1, the difference between Example 2 is that the bottom of the stirring shaft 2 is rotationally connected to the reciprocating screw rod 21, and a clutch assembly 6 for controlling the linkage between the stirring shaft 2 and the reciprocating screw rod 21 is fixed between the stirring shaft 2 and the reciprocating screw rod 21, and the clutch assembly 6 includes: a connecting seat 61, fixed on the partition 3, and the stirring shaft 2 is rotationally connected to the connecting seat 61; an electromagnet 62, fixed on the surface of a sleeve 63; a sleeve 63, slidingly connected to the reciprocating screw rod 21, and the adjacent ends of the stirring shaft 2 and the reciprocating screw rod 21 are evenly fixed with protrusions that cooperate with the sleeve 63; a valve seat 64, rotationally connected to the sleeve 63, and the valve seat 64 is used to close the hollow part on the partition 3; a second spring 65, the two ends of which are respectively against the electromagnet 62 and the valve seat 64, and the second spring 65 is used to provide elastic force to the valve seat 64, so that the valve seat 64 can always remain as shown when no external force is applied. Figure 7 As shown, the valve seat 64 blocks the hollow portion in the middle of the partition 3, so that the first chamber is in a closed state, and the sleeve 63 is away from the stirring shaft 2, so that the rotation of the stirring shaft 2 will not drive the reciprocating screw rod 21 to rotate; See also Figure 4 As shown, when the electromagnet 62 is energized to adsorb the valve seat 64, the valve seat 64 moves away from the hollow portion in the middle of the partition 3, so that the first chamber is connected to the second chamber, and the sleeve 63 engages with the protrusion on the stirring shaft 2, so that the stirring shaft 2 drives the reciprocating screw 21 to rotate through the sleeve 63.

[0036] The purpose is to prevent the organic solvent from falling into the second chamber in the initial stage of heating, thereby affecting the heating effect.

[0037] The exemplary implementation scheme of the present disclosure is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present disclosure can be combined in various ways without exceeding the protection scope of the present disclosure, which is determined by the attached claims.

Claims

1. An organic solvent waste recycling device, characterized in that: include: A heating kettle (1) for heating an organic solvent; The fractionation tower (7) is used for multi-stage distillation of organic solvents, and the fractionation tower (7) comprises: A tower body (71), wherein the inner cavity of the tower body (71) is in communication with the inner cavity of the heating kettle (1); A tower plate (72) is fixed in the tower body (71), one side of the tower plate (72) is provided with a liquid receiving tank (721), the other side of the tower plate (72) is fixed with a downcomer (73), and the downcomer (73) is slidably connected with an overflow weir (731); The bubble cap (8) is fixed on the tower plate (72), and an adjusting cover (81) is rotatably connected inside the bubble cap (8). A driving assembly is mounted on the top of the adjusting cover (81), and the driving assembly is used to drive the adjusting cover (81) to rotate.

2. The organic solvent waste recycling device according to claim 1, characterized in that: The rotating assembly comprises: a fixed seat (82) fixed on the bubble cap (8); a synchronous shaft (83) rotatably connected to the fixed seat (82); a driving shaft (84) rotatably connected to the fixed seat (82); a driven worm wheel (811) fixed to the end of the adjustment cover (81); a synchronous worm (831) fixed on the outer surface of the synchronous shaft (83), and the synchronous worm (831) meshes with the driven worm wheel (811); a driving worm (841) fixed on the outer surface of the driving shaft (84); a synchronous worm wheel (832) fixed on the outer surface of the synchronous shaft (83), and the driving worm (841) meshes with the synchronous worm wheel (832); a second motor (75) fixed on the outer surface of the tower body (71), and the output end of the second motor (75) is fixedly connected to the end of the driving shaft (84).

3. The organic solvent waste recycling device according to claim 1, characterized in that: A rack (7311) is fixed to the outer surface of the overflow weir (731), a first motor (74) is fixed to the outer surface of the tower body (71), an adjustment gear (741) is fixed to the output end of the first motor (74), and the adjustment gear (741) is meshed with the rack (7311).

4. The organic solvent waste recycling device according to claim 1, characterized in that: A stirring shaft (2) is rotatably connected inside the heating kettle (1), a reciprocating screw rod (21) is rotatably connected at the bottom of the stirring shaft (2), a partition plate (3) is fixed inside the heating kettle (1), the partition plate (3) divides the heating kettle (1) into a first chamber and a second chamber in upper and lower directions, and the middle of the partition plate (3) is hollowed out; a screw barrel (4) is threadedly connected to the outer surface of the reciprocating screw rod (21), a filter plate (5) is fixed to the outer surface of the screw barrel (4), and the outer periphery of the filter plate (5) is vertically slidably sealedly connected to the inner wall of the heating kettle (1).

5. The organic solvent waste recycling device according to claim 4, characterized in that: A feeding pipe (11) for feeding is fixed on the upper surface of the heating kettle (1), and a discharging pipe (12) for discharging is fixed on the side of the heating kettle (1), and both the feeding pipe (11) and the discharging pipe (12) are connected to the first chamber; a stirring motor (13) is fixed on the top of the heating kettle (1), and the output end of the stirring motor (13) is connected and fixed to the stirring shaft (2).

6. The organic solvent waste recycling device according to claim 5, characterized in that: The outer surface of the screw barrel (4) is telescopically connected to a liquid inlet barrel (41), the filter plate (5) is fixed on the liquid inlet barrel (41), a first spring (42) is provided between the screw barrel (4) and the liquid inlet barrel (41), and two ends of the first spring (42) are respectively against the screw barrel (4) and the liquid inlet barrel (41).

7. The organic solvent waste recycling device according to claim 6, characterized in that: The liquid inlet cylinder (41) is connected vertically, and a valve plate (43) is hingedly connected to the bottom of the liquid inlet cylinder (41). The valve plate (43) is used to close the bottom of the liquid inlet cylinder (41). A torsion spring is fixed at the hinge point between the valve plate (43) and the liquid inlet cylinder (41). The torsion spring is used to provide a restoring elastic force for the valve plate (43).

8. The organic solvent waste recycling device according to claim 7, characterized in that: A clutch assembly (6) for controlling the linkage between the stirring shaft (2) and the reciprocating screw (21) is fixed between the stirring shaft (2) and the reciprocating screw (21).

9. The organic solvent waste recycling device according to claim 8, characterized in that: The clutch assembly (6) comprises: a connecting seat (61) fixed on the partition (3), the stirring shaft (2) being rotatably connected to the connecting seat (61); an electromagnet (62) fixed on the surface of a sleeve (63); the sleeve (63) being slidably connected to the reciprocating screw (21), and protrusions matching the sleeve (63) being evenly fixed at the adjacent ends of the stirring shaft (2) and the reciprocating screw (21); a valve seat (64) being rotatably connected to the sleeve (63), and the valve seat (64) being used to close the hollow portion on the partition (3); and a second spring (65), the two ends of which are respectively against the electromagnet (62) and the valve seat (64).

10. The organic solvent waste recycling device according to claim 1, characterized in that: The bottom of the heating kettle (1) is provided with a discharge port.

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