Equipment for resource utilization of waste residue from the reaction kettle of trifluoromethylaniline

Abstract

The present invention discloses a resource utilization device for the residue of trifluoromethylaniline still bottoms, which relates to the field of reaction kettles. This resource utilization device for the residue of trifluoromethylaniline still bottoms includes a reaction kettle. One side of the top plate of the reaction kettle is provided with a feed inlet, and the center of the bottom surface of the reaction kettle is provided with a discharge outlet. Materials are put into the inner side of the reaction kettle through the feed inlet. This resource utilization device for the residue of trifluoromethylaniline still bottoms can directly transport the coolant to the friction contact surface between the scraper and the inner wall of the reaction kettle. The coolant flows along the friction surface through the C-shaped cooling channel inside the scraper, directly absorbs the friction heat, and is quickly exported through a closed-loop circulation. Compared with the reaction kettles of traditional technologies, it effectively avoids the decomposition or coking of trifluoromethylaniline still bottoms caused by local overheating, and avoids the problem of aggravated wear caused by the overheating zone.

Description

Technical Field

[0001] The present invention relates to the field of reaction kettles, and in particular to a device for resource utilization of waste liquid from trifluoromethylaniline kettle residues. Background Art

[0002] In the field of chemical production, during the recovery and preparation process of trifluoromethylaniline waste liquid, resource treatment needs to be carried out through a reaction kettle. In the prior art, a scraping-wall reaction kettle is widely used in the stirring and distillation processes of such materials. It continuously scrapes the inner wall of the reaction kettle through a scraper to prevent material adhesion and ensure sufficient mixing and reaction during the mixing process and subsequent reaction process.

[0003] However, during long-term operation, the mechanical friction between the scraper and the inner wall of the reaction kettle will cause a sharp increase in local temperature, leading to the following problems: destruction of material thermosensitivity: trifluoromethylaniline waste liquid is prone to decomposition or coking at high temperatures, reducing the product purity and recovery efficiency; increased equipment loss: local overheating accelerates the wear of the scraper and the inner wall of the reaction kettle, shortening the service life of the equipment. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art problems, the purpose of the present invention is to provide a device for resource utilization of waste liquid from trifluoromethylaniline kettle residues, which solves the problem that the continuous scraping of the scraper of the scraping-wall reaction kettle for the recovery and treatment of trifluoromethylaniline waste liquid in the prior art is prone to generate high temperature, causing the decomposition and coking of trifluoromethylaniline waste liquid and accelerating the wear of the scraper and the inner wall of the reaction kettle.

[0005] In order to solve the prior art problems, the technical solution of the present invention is as follows:

[0006] A device for resource utilization of waste liquid from trifluoromethylaniline kettle residues includes a reaction kettle and a stirring shaft arranged at its axis. A first chamber and a second chamber are arranged in the stirring shaft in an isolated manner. A plurality of stirring blades are fixed on the outer wall of the stirring shaft, and a scraper is arranged at the end of the stirring blade. The scraping surface of the scraper can be adjusted to fit the inner wall of the reaction kettle;

[0007] A cooling channel is arranged inside the scraper, and the cooling channel is communicated with the first chamber and the second chamber through a disconnectable fluid channel;

[0008] A pressing component is arranged between the scraper and the stirring blade. The pressing component is used to drive the scraper to keep fitting the inner wall of the reaction kettle and disconnect the fluid channel when the scraper is separated.

[0009] Preferably, the fluid channel includes an upper liquid inlet pipe and a lower liquid outlet pipe fixed to the stirring blade. The upper liquid inlet pipe and the lower liquid outlet pipe are respectively communicated with the first chamber and the second chamber. The rotating pipes are respectively rotatably connected to the upper liquid inlet pipe and the lower liquid outlet pipe. One end of the upper liquid inlet pipe close to the rotating pipe and one end of the lower liquid outlet pipe close to the rotating pipe are both longitudinally arranged, and the ends of the upper liquid inlet pipe and the lower liquid outlet pipe close to the rotating pipe are coaxially arranged;

[0010] The two ends of the rotating pipes facing away from the stirring blade are respectively communicated with both ends of the cooling channel. A connecting member is arranged between the rotating pipes and the upper liquid inlet pipe and the lower liquid outlet pipe to disconnect the fluid channel when the scraping plate disengages from the inner wall of the kettle body.

[0011] Preferably, the connecting member includes an open-closed loop fixed inside the rotating pipe. A connecting groove is formed on the outer wall of the open-closed loop to connect the inner cavity of the open-closed loop and the inner cavity of the rotating pipe. Cooling liquid through holes are formed on the parts of the upper liquid inlet pipe and the lower liquid outlet pipe covered by the open-closed loop. When the scraping plate fits against the inner wall of the reaction kettle, the cooling liquid through holes are aligned with the connecting groove to form a passage.

[0012] Preferably, the pressing component includes a torsion spring sleeved outside the rotating pipe. One end of the torsion spring is fixed to the outer wall of the rotating pipe, and the other end of the torsion spring is connected to the stirring blade through an adjusting component. The adjusting component is used to tend to twist the end of the torsion spring.

[0013] Preferably, the adjusting component includes a ring connected to the end of the torsion spring away from the rotating pipe. A pair of rings at the end of the stirring blade are respectively sleeved on the ends of the lower liquid outlet pipe and the upper liquid inlet pipe. A rotating shaft is rotatably connected in the notch at the end of the stirring blade through a bearing. The upper and lower ends of the rotating shaft are respectively fixed to the two rings. A worm gear is fixed in the middle of the rotating shaft. A worm is rotatably connected to the inner wall of the notch through a bearing. The worm is meshed with the worm gear, and a knob is fixed to the end of the worm.

[0014] Preferably, the pressing component includes a pushing plate hinged to the outer wall of the scraping plate. One end of the pushing plate away from the scraping plate is hinged with a sliding block. The sliding block is slidably connected to the outer wall of the stirring blade through a sliding rail. A bolt is threadedly connected to the sliding block through a threaded hole, and the end of the bolt abuts against the outer wall of the stirring blade.

[0015] Preferably, the stirring shaft is hollow, the inner cavity of the stirring shaft opens upward, and a sandwich sleeve is fixed at the center of the bottom surface of the inner cavity of the stirring shaft. The inner cavity of the sandwich sleeve is isolated from the inner cavity of the stirring shaft through the side wall of the sandwich sleeve.

[0016] Preferably, the top surface height of the sandwich sleeve is higher than that of the stirring shaft. The top of the sandwich sleeve is rotatably connected with a first feeding head through a second sealing bearing, and the top of the stirring shaft is rotatably connected with a second feeding head through a third sealing bearing. The sandwich sleeve is coaxially arranged with the second discharging head, and the sandwich sleeve and the second discharging head are rotatably connected through a fourth sealing bearing.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] 1. Through the integrated cooling flow channel of the stirring shaft inner cavity - sandwich sleeve - upper liquid inlet pipe / lower liquid outlet pipe - scraper cooling channel, the present invention directly conveys the coolant to the friction contact surface (i.e., the scraping surface) between the scraper and the inner wall of the reaction kettle. The coolant flows along the friction surface through the C-shaped cooling channel inside the scraper, directly absorbs the friction heat, and is quickly exported through a closed-loop circulation (the coolant port and the connecting groove are dynamically aligned). Compared with the reaction kettle of the traditional technology, the present invention effectively avoids the problems of decomposition or coking of the residual liquid of trifluoromethylaniline caused by local overheating, and avoids the problem of increased wear caused by overheating.

[0019] 2. Through the setting of the torsion spring in Embodiment 1 and the structures such as the slider and the pushing plate in Embodiment 2, the present invention can rotate and adjust the scraper, so that the scraper can be adjusted after long-term working wear. By adjusting it, it can be ensured that the scraper fits on the inner wall of the reaction kettle, making up for the wear gap. Especially the setting of the torsion spring structure in Embodiment 1 can ensure the fitting of the scraper. Only when the elastic potential energy of the torsion spring decreases, it is necessary to pre-tighten it. By rotating the circular ring and twisting the torsion spring, the force of the scraper pressing against the inner wall of the reaction kettle can be increased, greatly prolonging the adjustment period and reducing the number of adjustments.

[0020] 3. The present invention provides a structure of an open-closed loop - connecting groove designed at the end of the scraper cooling channel. When the processing liquid level drops, the scraper is driven to fold to the outside of the stirring blade around the rotating shaft by rotating the knob, or the scraper is separated from the inner wall of the reaction kettle by adjusting the position of the slider. At this time, the dislocation of the connecting groove and the coolant port automatically cuts off the coolant flow channel and stops supplying liquid to the idle scraper. Through this design, when the liquid level drops, by folding the scraper, unnecessary wear of the scraper can be reduced, and the cooling channel in the scraper can be mechanically linked to close, reducing the consumption of the coolant, and the operation steps are reduced. It only needs to flip the scraper, and there is no need to operate and close the flow channel separately. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the position of the stirring blade of the present invention.

[0023] Figure 3Schematic diagram of the first liquid inlet head structure of the present invention.

[0024] Figure 4 Schematic diagram of the scraper structure of the present invention.

[0025] Figure 5 Schematic diagram of the rotating shaft structure of the present invention.

[0026] Figure 6 Schematic diagram of the position structure of the upper liquid inlet pipe of the present invention.

[0027] Figure 7 Schematic diagram of the cooling channel structure of the present invention.

[0028] Figure 8 Schematic diagram of the open-closed loop structure of the present invention.

[0029] Figure 9 Schematic diagram of the coolant through-port structure of the present invention.

[0030] Figure 10 Schematic diagram of the second embodiment structure of the present invention.

[0031] Reference numerals: 1, reaction kettle; 2, feed inlet; 3, discharge outlet; 4, stirring shaft; 401, sandwich sleeve; 5, worm and worm gear reduction motor; 6, stirring blade; 601, notch; 7, upper liquid inlet pipe; 8, lower liquid outlet pipe; 9, scraper; 10, cooling channel; 11, rotating pipe; 12, bending part; 13, first feed head; 14, second discharge head; 15, torsion spring; 16, ring; 17, rotating shaft; 18, worm wheel; 19, worm; 20, knob; 21, open-closed loop; 22, connecting groove; 23, coolant through-port; 24, push plate; 25, slider; 26, slide rail; 27, bolt. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0033] Embodiment 1, please refer to Figures 1 to 9 , this embodiment provides a device for resource utilization of trifluoromethylaniline kettle residue, including a reaction kettle 1. A feed inlet 2 is provided on one side of the top plate of the reaction kettle 1, and a discharge outlet 3 is provided at the center of the bottom surface of the reaction kettle 1. Materials are put into the inside of the reaction kettle 1 through the feed inlet 2. After closing the reaction kettle 1, stirring and mixing and vacuum distillation operations are carried out. For the vacuum and temperature control, these are all conventional settings of a stirring kettle in the prior art and belong to mature prior art, so they will not be elaborated here;

[0034] At the center of the top surface of the top plate of the reaction kettle 1, a stirring shaft 4 is rotatably connected through a first sealing bearing. The lower end of the stirring shaft 4 extends into the inner cavity of the reaction kettle 1. In the middle position of the top surface of the top plate of the reaction kettle 1, a worm and worm gear reduction motor 5 is fixed. The upper end of the stirring shaft 4 is sleeved and fixed on the inner wall of the output end of the worm and worm gear reduction motor 5. On the outer wall of the part of the stirring shaft 4 located in the inner cavity of the reaction kettle 1, six stirring blades 6 are fixedly arranged in a stepped manner from top to bottom. When the worm and worm gear reduction motor 5 is powered on and driven, it drives the stirring shaft 4 to rotate, so that the stirring blades 6 rotate around the inside of the reaction kettle 1, thus realizing the stirring effect.

[0035] The stirring shaft 4 is hollow. The inner cavity of the stirring shaft 4 opens upward. At the center of the bottom surface of the inner cavity of the stirring shaft 4, an interlayer sleeve 401 is fixed. The opening of the interlayer sleeve 401 also faces upward. An upper liquid inlet pipe 7 is fixed on the top surface of the stirring blade 6, and a lower liquid outlet pipe 8 is fixed on the bottom surface of the stirring blade 6. One end of the upper liquid inlet pipe 7 close to the axis of the reaction kettle 1 sequentially penetrates the side wall of the stirring shaft 4 and the side wall of the interlayer sleeve 401 and extends into the inner cavity of the interlayer sleeve 401. One end of the lower liquid outlet pipe 8 close to the axis of the reaction kettle 1 penetrates the side wall of the stirring shaft 4 and extends into the inner cavity of the stirring shaft 4, and the upper liquid inlet pipe 7 is fixed to the side wall of the stirring shaft 4 and the side wall of the interlayer sleeve 401, and the lower liquid outlet pipe 8 is fixed to the side wall of the stirring shaft 4.

[0036] One end of the stirring blade 6 facing away from the stirring shaft 4 is provided with a scraping plate 9. A C-shaped cooling channel 10 is formed in the middle of the scraping plate 9. The C port of the cooling channel 10 faces the end of the stirring blade 6. The middle of the cooling channel 10 is located on the inner side of the scraping plate 9 close to the scraping surface side of the scraping plate 9, and the upper and lower ends of the cooling channel 10 respectively extend to the top surface and the bottom surface of the scraping plate 9. Rotating pipes 11 are respectively inserted and fixed at the upper and lower ends of the cooling channel 10. One ends of the upper liquid inlet pipe 7 and the lower liquid outlet pipe 8 close to the scraping plate 9 are respectively formed with vertically upward and vertically downward bent portions 12. The two bent portions 12 are coaxially arranged. The upper and lower rotating pipes 11 facing the stirring blade 6 are respectively rotatably connected to the bent portion 12 of the upper liquid inlet pipe 7 and the bent portion 12 of the lower liquid outlet pipe 8 through fifth sealing bearings;

[0037] In this way, during the rotation of the stirring shaft 4, if the scraping surface of the scraping plate 9 is ensured to be in contact with the inner wall of the reaction kettle 1, the residual materials attached to the inner wall of the reaction kettle 1 can be scraped off during the stirring process. For the phenomenon that the scraping surface and the inner wall of the reaction kettle 1 are locally overheated due to friction, coolant can be introduced into the inner side of the interlayer sleeve 401, so that the coolant enters the upper liquid inlet pipe 7, and then enters the cooling channel 10 through the rotating pipe 11. In the cooling channel 10, the coolant takes away the heat of the scraping surface of the scraping plate 9, enters the lower liquid outlet pipe 8, and then enters the inner cavity of the stirring shaft 4 and is discharged from its upper opening.

[0038] The top surface height of the interlayer sleeve 401 is higher than the top surface height of the stirring shaft 4. The top of the interlayer sleeve 401 is rotatably connected to the first feed head 13 through the second sealed bearing. The top of the stirring shaft 4 is rotatably connected to the second discharge head 14 through the third sealed bearing. The interlayer sleeve 401 penetrates the second discharge head 14 from the axial position of the second discharge head 14, and the outer wall of the interlayer sleeve 401 and the top plate of the second discharge head 14 are rotatably connected through the fourth sealed bearing. When the external coolant is pumped through the pipeline and the coolant collection pipeline, the pumping pipeline is connected to the liquid inlet of the first feed head 13, and the collection pipeline is connected to the liquid outlet of the second discharge port 3, thereby realizing the circulation pumping of the coolant. While the stirring shaft 4 and the interlayer sleeve 401 rotate to perform stirring, the positions of the first feed head 13 and the second discharge head 14 can remain stationary, thereby avoiding the occurrence of motion interference.

[0039] In order to ensure that the scraper 9 can always contact the inner wall of the reactor 1 during the stirring and scraping process, a torsion spring 15 is sleeved on the outer side of the rotating pipe 11 sleeved on the bent portion 12, one end of the torsion spring 15 is fixed to the outer wall of the rotating pipe 11, and a ring 16 is fixed to the other end of the torsion spring 15. The two rings 16 are respectively sleeved on the outer side of the bent portion 12 of the upper liquid inlet pipe 7 and the bent portion 12 of the lower liquid outlet pipe 8, and the rings 16 are in the same direction as the bent portion 12. The shaft is set, and a rotating shaft 17 is rotatably connected to the notch 601 in the middle of the side of the stirring blade 6 away from the axis of the reactor 1 through a bearing. The rotating shaft 17 is coaxially set with the circular ring 16. The upper and lower ends of the rotating shaft 17 respectively penetrate the stirring blade 6 and are fixed to the two circular rings 16 at the upper and lower ends. A worm gear 18 is fixed to the middle of the rotating shaft 17. A worm 19 is rotatably connected to the inner wall of the notch 601 through a bearing. The worm 19 is meshed with the worm wheel 18, and a knob 20 is fixed to the end of the worm 19. The worm 19 limits the rotation of the worm wheel 18, thus ensuring that the torsion spring 15 can always provide a torsion force to the rotating pipe 11 under normal conditions, so that the scraper 9 remains in a state of contact with the inner wall of the reactor 1. During the rotation of the stirring shaft 4, the scraper 9 can achieve an effective scraping effect. As the use time increases, the elastic potential energy of the torsion spring 15 decreases. The worm 19 can be turned to rotate the worm wheel 18 by turning the knob 20, thereby rotating the ring 16, increasing the torsion degree of the torsion spring 15, thereby compensating for the force fed back to the scraper 9, supplementing the force of the scraper 9 against the inner wall of the reactor 1, and ensuring that there is always a better scraping force.

[0040] A closed-loop 21 is fixed in the inner cavity of the rotating pipe 11 near the bending part 12, and the inner wall of the closed-loop 21 abuts against the outer wall of the bending part 12. On the side of the outer wall of the closed-loop 21 facing away from the stirring blade 6, a communication groove 22 with an opening facing away from the stirring blade 6 is formed. One end of the communication groove 22 close to the stirring blade 6 penetrates through the closed-loop 21 and communicates with the inner cavity of the closed-loop 21. A coolant through-hole 23 is opened at a position on the bending part 12 opposite to the communication groove 22. When the scraping plate 9 is closely attached to the inner wall of the reaction kettle 1, the end of the communication groove 22 is aligned with the coolant through-hole 23, thereby opening a fluid channel for the supply of coolant to flow. When the amount of residual liquid of trifluoromethylaniline to be processed in the reaction kettle 1 is adjusted and reduced, the scraping plate 9 at the corresponding height can be rotated successively from top to bottom, so that the scraping plate 9 at the high residual liquid level is separated from the inner wall of the reaction kettle 1, reducing unnecessary wear and waste of coolant. When rotating, by rotating the rotating knob 20, the rotating pipe 11 and the scraping plate 9 are driven to rotate until the scraping plate 9 is attached to the outside of the stirring blade 6.

[0041] The pipes are all made of ceramic or other hard materials with poor heat conduction performance to ensure the cooling efficiency of the coolant for the scraping plate 9.

[0042] Embodiment 2, please refer to Figure 10 , the difference between this embodiment and Embodiment 1 is that a push plate 24 is hinged on the outer wall of one side of the scraping plate 9. One end of the push plate 24 facing away from the scraping plate 9 is hinged with a slider 25. The slider 25 is slidably connected with the outer wall of the stirring blade 6 through a slide rail 26. A bolt 27 is threadedly connected to the slider 25 through a threaded hole, and the end of the bolt 27 abuts against the outer wall of the stirring blade 6. By using the slider 25, the push plate 24 and the bolt 27, the structures such as the torsion spring 15, the ring 16, the rotating shaft 17, the worm 19 and the worm wheel 18 in Embodiment 1 are replaced. The push plate 24 is used to realize the effect of pressing the scraping plate 9 against the inner wall of the reaction kettle 1. Similarly, as the scraping plate 9 is gradually worn, by adjusting the position of the slider 25 on the stirring blade 6, the scraping plate 9 can be pushed to flip, so as to ensure that the scraping plate 9 always abuts against the inner wall of the reaction kettle 1 for effective scraping. When the amount of residual liquid of trifluoromethylaniline to be processed is adjusted and reduced, the position of the slider 25 can be adjusted in the same way.

[0043] 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 principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An equipment for resource utilization of the residue liquid of trifluoromethyl aniline, comprising a reaction kettle (1) and a stirring shaft (4) arranged at its axis, characterized in that, A first chamber and a second chamber which are isolated from each other are provided inside the stirring shaft (4). A plurality of stirring blades (6) are fixed on the outer wall of the stirring shaft (4). A scraper (9) is provided at the end of the stirring blade (6), and the scraping surface of the scraper (9) is adjustably attached to the inner wall of the reaction kettle (1); A cooling channel (10) is provided inside the scraper (9), and the cooling channel (10) is communicated with the first chamber and the second chamber through a disconnectable fluid channel; A tightening component is provided between the scraper (9) and the stirring blade (6). The tightening component is used to drive the scraper (9) to keep attaching to the inner wall of the reaction kettle (1) and disconnect the fluid channel when the scraper (9) detaches; The fluid channel includes an upper liquid inlet pipe (7) and a lower liquid outlet pipe (8) fixed to the stirring blade (6). The upper liquid inlet pipe (7) and the lower liquid outlet pipe (8) are respectively communicated with the first chamber and the second chamber. A rotating pipe (11) is respectively rotatably connected to the upper liquid inlet pipe (7) and the lower liquid outlet pipe (8). The ends of the upper liquid inlet pipe (7) and the lower liquid outlet pipe (8) close to the rotating pipe (11) are both arranged longitudinally, and the ends of the upper liquid inlet pipe (7) and the lower liquid outlet pipe (8) close to the rotating pipe (11) are coaxially arranged; The ends of the two rotating pipes (11) facing away from the stirring blade (6) are respectively communicated with the two ends of the cooling channel (10). A connecting member is arranged between the rotating pipe (11) and the upper liquid inlet pipe (7) and the lower liquid outlet pipe (8) to disconnect the fluid channel when the scraper (9) detaches from the inner wall of the kettle body; The connecting member includes an open-closed loop (21) fixed inside the rotating pipe (11). A connecting groove (22) communicating the inner cavity of the open-closed loop (21) and the inner cavity of the rotating pipe (11) is formed on the outer wall of the open-closed loop (21). Cooling liquid through holes (23) are respectively formed on the parts of the upper liquid inlet pipe (7) and the lower liquid outlet pipe (8) covered by the open-closed loop (21). When the scraper (9) attaches to the inner wall of the reaction kettle (1), the cooling liquid through holes (23) are aligned with the connecting groove (22) to form a passage; The tightening component includes a torsion spring (15) sleeved outside the rotating pipe (11). One end of the torsion spring (15) is fixed to the outer wall of the rotating pipe (11), and the other end of the torsion spring (15) is connected to the stirring blade (6) through an adjusting component. The adjusting component is used to drive the end of the torsion spring (15) to twist; The adjusting component includes a ring (16) connected to the end of the torsion spring (15) facing away from the rotating pipe (11). A pair of rings (16) at the end of the stirring blade (6) are respectively sleeved on the ends of the lower liquid outlet pipe (8) and the upper liquid inlet pipe (7). A rotating shaft (17) is rotatably connected in a notch (601) at the end of the stirring blade (6) through a bearing. The upper and lower ends of the rotating shaft (17) are respectively fixed to the two rings (16). A worm gear (18) is fixed in the middle of the rotating shaft (17). A worm (19) is rotatably connected to the inner wall of the notch (601) through a bearing. The worm (19) is meshed with the worm gear (18). A knob (20) is fixed to the end of the worm (19); The stirring shaft (4) is hollow, the inner cavity of the stirring shaft (4) is opened upward, a sandwich sleeve (401) is fixed at the center of the bottom surface of the inner cavity of the stirring shaft (4), and the inner cavity of the sandwich sleeve (401) is isolated from the inner cavity of the stirring shaft (4) by the side wall of the sandwich sleeve (401); The top surface height of the interlayer sleeve (401) is higher than the top surface height of the stirring shaft (4); the top of the interlayer sleeve (401) is rotatably connected to the first feed head (13) via a second sealed bearing; the top of the stirring shaft (4) is rotatably connected to the second feed head via a third sealed bearing; the interlayer sleeve (401) and the second discharge head (14) are coaxially arranged, and the interlayer sleeve (401) and the second discharge head (14) are rotatably connected via a fourth sealed bearing.

2. The resource utilization equipment for the residue of trifluoromethyl aniline still as claimed in claim 1, wherein, The abutting assembly may also be another structure, comprising a push plate (24) hinged on the outer wall of the scraper (9), a slider (25) being hinged on one end of the push plate (24) facing away from the scraper (9), the slider (25) being slidably connected to the outer wall of the stirring blade (6) via a slide rail (26), a bolt (27) being threadedly connected to the slider (25) via a threaded hole, and an end of the bolt (27) abutting against the outer wall of the stirring blade (6).

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