Trifluoromethylaniline kettle residual liquid resource utilization equipment

Abstract

The invention discloses trifluoromethylaniline kettle residual liquid resource utilization equipment, and relates to the field of reaction kettles.The trifluoromethylaniline kettle residual liquid resource utilization equipment comprises a reaction kettle, a feeding port is formed in one side of a top plate of the reaction kettle, and a discharging port is formed in the center of the bottom face of the reaction kettle; materials are fed into the inner side of the reaction kettle through the feeding hole; according to the trifluoromethylaniline kettle residual liquid resource utilization equipment, cooling liquid can be directly conveyed to the friction contact surface of the scraper and the inner wall of the reaction kettle. Cooling liquid flows along the friction surface through the C-shaped cooling channel in the scraper blade, directly absorbs friction heat and is rapidly guided out through closed-loop circulation. Compared with a reaction kettle in the prior art, the reaction kettle has the advantages that decomposition or coking caused by local overheating of the trifluoromethylaniline residual liquid is effectively avoided, and the problem that abrasion is aggravated due to overheating is avoided.

Description

Technical Field

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

[0002] In the field of chemical production, the residual liquid of trifluoromethylaniline is generated during the recovery and preparation process and needs to be recycled through a reactor. In the prior art, a scraper reactor is widely used in the stirring and distillation process of such materials. The scraper continuously scrapes the inner wall of the reactor to prevent material adhesion and ensure sufficient mixing 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 reactor will cause the local temperature to rise sharply, causing the following problems: thermal sensitivity of the material is destroyed: the residual liquid of trifluoromethylaniline is prone to decomposition or coking at high temperature, reducing the purity of the product and the recovery efficiency; equipment loss is aggravated: local overheating accelerates the wear of the scraper and the inner wall of the reactor, shortening the service life of the equipment. Summary of the invention

[0004] In order to make up for the shortcomings of the existing technical problems, the purpose of the present invention is to provide a trifluoromethylaniline kettle residual liquid resource utilization equipment to solve the problem that the scraper of the scraper-type reactor for recovering and treating the trifluoromethylaniline residual liquid in the prior art is easily scraped to generate high temperature, causing the trifluoromethylaniline residual liquid to decompose and coke, and accelerating the wear of the scraper and the inner wall of the reactor.

[0005] In order to solve the problems of the prior art, the technical solution of the present invention is as follows: A trifluoromethylaniline kettle residual liquid resource utilization device, comprising a reactor and a stirring shaft arranged at the axis thereof, wherein the stirring shaft is provided with a first chamber and a second chamber isolated from each other, a plurality of stirring blades are fixed on the outer wall of the stirring shaft, a scraper is provided at the end of the stirring blade, and the scraping surface of the scraper can be adjusted to fit the inner wall of the reactor; A cooling channel is provided on the inner side of the scraper, and the cooling channel is connected with the first chamber and the second chamber through a disconnectable fluid channel; A pressing component is provided between the scraper and the stirring blade, and the pressing component is used to drive the scraper to keep in contact with the inner wall of the reactor and disconnect the fluid channel when the scraper is detached.

[0006] Preferably, the fluid channel comprises 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 connected to the first chamber and the second chamber, and are respectively rotatably connected to the rotating pipes of the upper liquid inlet pipe and the lower liquid outlet pipe, and the end of the upper liquid inlet pipe close to the rotating pipe and the end of the lower liquid outlet pipe close to the rotating pipe are both arranged longitudinally, and the ends of the upper liquid inlet pipe and the lower liquid outlet pipe close to the rotating pipe are coaxially arranged; The ends of the two rotating pipes away from the stirring blades are respectively connected to the two ends of the cooling channel. A connecting piece is arranged between the rotating pipe and the upper liquid inlet pipe and the lower liquid outlet pipe to disconnect the fluid channel when the scraper leaves the inner wall of the kettle.

[0007] Preferably, the connecting piece includes an open-closed ring fixed in a rotating pipe, a connecting groove connecting the inner cavity of the open-closed ring and the inner cavity of the rotating pipe is formed on the outer wall of the open-closed ring, and cooling liquid openings are provided on the parts of the upper liquid inlet pipe and the lower liquid outlet pipe that are covered by the open-closed ring. When the scraper is in contact with the inner wall of the reactor, the cooling liquid openings are aligned with the connecting groove to form a passage.

[0008] Preferably, the clamping assembly includes a torsion spring sleeved on the outside of 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 assembly, and the adjusting assembly is used to tend to twist the end of the torsion spring.

[0009] Preferably, the adjustment component includes a ring connected to the end of the torsion spring facing 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 to the recess 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 to the middle of the rotating shaft, the inner wall of the recess is rotatably connected to a worm through a bearing, the worm is meshingly connected to the worm gear, and a knob is fixed to the end of the worm.

[0010] Preferably, the clamping assembly includes a push plate hinged on the outer wall of the scraper, and a slider is hinged on the end of the push plate facing away from the scraper. The slider is slidably connected to the outer wall of the stirring blade through a slide rail, and a bolt is threadedly connected to the slider through a threaded hole, and the end of the bolt abuts against the outer wall of the stirring blade.

[0011] Preferably, the stirring shaft is hollow, the inner cavity of the stirring shaft opens upward, a sandwich sleeve is fixed at the center of the bottom surface of the inner cavity of the stirring shaft, and the inner cavity of the sandwich sleeve is isolated from the inner cavity of the stirring shaft by the side wall of the sandwich sleeve.

[0012] Preferably, the top surface height of the interlayer sleeve is higher than the top surface height of the stirring shaft, the top of the interlayer sleeve is rotatably connected to the first feed head through a second sealed bearing, the top of the stirring shaft is rotatably connected to the second feed head through a third sealed bearing, the interlayer sleeve is coaxially arranged with the second discharge head, and the interlayer sleeve and the second discharge head are rotatably connected through a fourth sealed bearing.

[0013] Compared with the prior art, the advantages of the present invention are as follows: 1. The present invention uses an integrated cooling channel of the inner cavity of the stirring shaft-sandwich sleeve-upper liquid inlet pipe / lower liquid outlet pipe-scraper cooling channel to directly transport the coolant to the friction contact surface (i.e., the scraping surface) between the scraper and the inner wall of the reactor. The coolant flows along the friction surface through the C-shaped cooling channel inside the scraper, directly absorbs the friction heat, and is quickly discharged through a closed-loop circulation (the coolant port is dynamically aligned with the connecting groove). Compared with the reactor of the traditional technology, it effectively avoids the decomposition or coking of the residual trifluoromethylaniline due to local overheating, and avoids the problem of aggravated wear caused by overheating.

[0014] 2. The present invention can adjust the rotation of the scraper through the setting of the torsion spring in the first embodiment and the setting of the slider and the push plate in the second embodiment, so that the scraper can be adjusted after long-term wear and tear to ensure that it fits on the inner wall of the reactor and make up for the wear gap. In particular, the torsion spring structure setting in the first embodiment can ensure the fit of the scraper. It only needs to be pre-tightened when the elastic potential energy of the torsion spring decreases. By rotating the ring and twisting the torsion spring, the force of the scraper against the inner wall of the reactor can be increased. The adjustment cycle is greatly extended and the number of adjustments is reduced.

[0015] 3. The present invention provides an open-closed loop-connecting groove structure designed at the end of the scraper cooling channel. When the processing liquid level is lowered, the scraper is driven to fold around the rotating axis to the outside of the stirring blade by rotating the knob, or the scraper is separated from the inner wall of the reactor by adjusting the position of the slider. At this time, the misalignment 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 is lowered, the scraper can be folded to reduce unnecessary wear of the scraper, and the cooling channel in the scraper can be mechanically linked and closed, which reduces the consumption of coolant and reduces the number of operating steps. It only needs to flip the scraper, and there is no need to close the flow channel separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the position of the stirring blade of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the first liquid inlet head of the present invention.

[0019] Figure 4 It is a schematic diagram of the scraper structure of the present invention.

[0020] Figure 5 It is a schematic diagram of the rotating shaft structure of the present invention.

[0021] Figure 6 It is a schematic diagram of the position structure of the upper liquid inlet pipe of the present invention.

[0022] Figure 7 It is a schematic diagram of the cooling channel structure of the present invention.

[0023] Figure 8 It is a schematic diagram of the open and closed loop structure of the present invention.

[0024] Fig. 9 It is a schematic diagram of the coolant port structure of the present invention.

[0025] Fig.10 This is a structural diagram of embodiment 2 of the present invention.

[0026] Figure numerals: 1, reactor; 2, feed port; 3, discharge port; 4, stirring shaft; 401, interlayer casing; 5, 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 pipeline; 12, bending portion; 13, first feed head; 14, second discharge head; 15, torsion spring; 16, circular ring; 17, rotating shaft; 18, worm wheel; 19, worm; 20, knob; 21, open and closed loop; 22, connecting groove; 23, coolant port; 24, push plate; 25, slider; 26, slide rail; 27, bolt. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] For example, see Figures 1 to 9 This embodiment provides a trifluoromethylaniline kettle residual liquid resource utilization equipment, including a reactor 1, a feed port 2 is provided on one side of the top plate of the reactor 1, and a discharge port 3 is provided at the center of the bottom surface of the reactor 1. The material is put into the inner side of the reactor 1 through the feed port 2, and after the reactor 1 is closed, stirring and mixing and vacuum distillation are performed. For decompression and temperature control, these are conventional settings of the stirred kettle in the prior art, which belong to mature prior art, so they are not described here in detail; A stirring shaft 4 is rotatably connected through the center of the top surface of the top plate of the reactor 1 through a first sealed bearing, and the lower end of the stirring shaft 4 extends to the inner cavity of the reactor 1. A worm gear reduction motor 5 is fixed to the middle position of the top surface of the top plate of the reactor 1, and the upper end of the stirring shaft 4 is sleeved and fixed on the inner wall of the output end of the worm gear reduction motor 5. The stirring shaft 4 is located on the outer wall of the inner cavity part of the reactor 1, and six stirring blades 6 are fixed in a stepped manner from top to bottom. When the worm gear reduction motor 5 is powered on, the stirring shaft 4 is driven to rotate, so that the stirring blades 6 rotate inside the reactor 1, thereby achieving a stirring effect.

[0029] The stirring shaft 4 is hollow, and the inner cavity opening of the stirring shaft 4 faces upward. An interlayer sleeve 401 is fixed at the center of the bottom surface of the inner cavity of the stirring shaft 4, and the opening of the interlayer sleeve 401 also faces upward. An upper liquid inlet pipe 7 is fixed to the top surface of the stirring blade 6, and a lower liquid outlet pipe 8 is fixed to the bottom surface of the stirring blade 6. One end of the upper liquid inlet pipe 7 close to the axis of the reactor 1 passes through the side wall of the stirring shaft 4 and the side wall of the interlayer sleeve 401 in turn, 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 reactor 1 passes through the side wall of the stirring shaft 4 and extends into the inner cavity of the stirring shaft 4. 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.

[0030] A scraper 9 is provided at one end of the stirring blade 6 facing away from the stirring shaft 4, a C-shaped cooling channel 10 is formed in the middle of the scraper 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 scraper 9 close to the scraping surface of the scraper 9, and the upper and lower ends of the cooling channel 10 extend to the top and bottom surfaces of the scraper 9 respectively, and the upper and lower ends of the cooling channel 10 are respectively plugged and fixed with rotating pipes 11, and the ends of the upper liquid inlet pipe 7 and the lower liquid outlet pipe 8 close to the scraper 9 are respectively formed with vertical upward and vertical downward bending portions 12, and the two bending portions 12 are coaxially arranged, and the upper and lower rotating pipes 11 facing the stirring blade 6 are respectively rotatably connected to the bending portion 12 of the upper liquid inlet pipe 7 and the bending portion 12 of the lower liquid outlet pipe 8 through the fifth sealed bearing; In this way, during the rotation of the stirring shaft 4, the scraping surface of the scraper 9 is ensured to be in contact with the inner wall of the reactor 1, so that the residual material attached to the inner wall of the reactor 1 can be scraped off during the stirring process. The scraping surface and the inner wall of the reactor 1 may be locally overheated due to friction. This can be solved by passing a coolant 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 from the scraping surface of the scraper 9 and enters the lower liquid outlet pipe 8, and then enters the inner cavity of the stirring shaft 4 and is discharged from the upper end opening.

[0031] 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. 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. An open-closed loop 21 is fixed in the inner cavity of the rotating pipe 11 near the bent portion 12, and the inner wall of the open-closed loop 21 is in contact with the outer wall of the bent portion 12. A connecting groove 22 with an opening facing the side away from the stirring blade 6 is formed on the outer wall of the open-closed loop 21. The connecting groove 22 is connected to the inner cavity of the open-closed loop 21 at one end near the stirring blade 6. A coolant port 23 is provided on the bent portion 12 at a position opposite to the connecting groove 22. When the scraper 9 is pressed against the inner wall of the reactor 1, The end of the connecting groove 22 is directly opposite to the coolant port 23, thereby opening a fluid channel for supplying coolant. When the amount of trifluoromethylaniline residual liquid to be treated in the reactor 1 is adjusted to be reduced, the scrapers 9 of corresponding heights can be rotated from top to bottom in sequence, so that the scrapers 9 at the high residual liquid level are separated from the inner wall of the reactor 1, reducing unnecessary wear and waste of coolant. When rotating, the rotating pipe 11 and the scraper 9 are driven to rotate by rotating the knob 20 until the scraper 9 is attached to the outside of the stirring blade 6.

[0032] The pipes are all made of ceramic or other hard materials with poor heat conductivity to ensure the cooling efficiency of the scraper 9 by the coolant.

[0033] For example 2, please refer to Fig.10 The difference between this embodiment and the first embodiment is that a push plate 24 is hinged on the outer wall of one side of the scraper 9, and a slider 25 is hinged on the end of the push plate 24 away from the scraper 9. The slider 25 is slidably connected to 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 is in contact with the outer wall of the stirring blade 6. The slider 25, the push plate 24 and the bolt 27 are used to replace the torsion spring 15, the ring 16, the rotating shaft 17, the worm 19 and the worm gear 18 in the first embodiment. The push plate 24 is used to achieve the effect of making the scraper 9 contact with the inner wall of the reactor 1. Similarly, as the scraper 9 gradually wears, the position of the slider 25 on the stirring blade 6 is adjusted, so that the scraper 9 can be pushed to flip, so that the scraper 9 is always in contact with the inner wall of the reactor 1 for effective scraping, and the amount of the residual trifluoromethylaniline to be treated is adjusted to be reduced, which can also be done by adjusting the position of the slider 25.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trifluoromethylaniline kettle residual liquid resource utilization device, comprising a reaction kettle (1) and a stirring shaft (4) arranged at the axis thereof, characterized in that: The stirring shaft (4) is provided with a first chamber and a second chamber which are isolated from each other. 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). The scraping surface of the scraper (9) can be adjusted to fit the inner wall of the reaction kettle (1). A cooling channel (10) is provided on the inner side of the scraper (9), and the cooling channel (10) is connected to the first chamber and the second chamber through a disconnectable fluid channel; A tightening assembly is provided between the scraper (9) and the stirring blade (6), and the tightening assembly is used to drive the scraper (9) to keep in contact with the inner wall of the reaction kettle (1) and to disconnect the fluid channel when the scraper (9) is detached.

2. The trifluoromethylaniline kettle residual liquid resource utilization equipment according to claim 1, characterized in that: The fluid channel comprises 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) being connected to the first chamber and the second chamber respectively, and a rotating pipe (11) being rotatably connected to the upper liquid inlet pipe (7) and the lower liquid outlet pipe (8), respectively, the end of the upper liquid inlet pipe (7) close to the rotating pipe (11) and the end of 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; One end of the two rotating pipes (11) facing away from the stirring blades (6) is connected to the two ends of the cooling channel (10) respectively. A connecting piece is arranged between the rotating pipe (11) and the upper liquid inlet pipe (7) and the lower liquid outlet pipe (8), and the fluid channel is disconnected when the scraper (9) is separated from the inner wall of the kettle body.

3. The trifluoromethylaniline kettle residual liquid resource utilization equipment according to claim 2, characterized in that: The connecting member comprises an open-closed ring (21) fixed in the rotating pipe (11); a connecting groove (22) is formed on the outer wall of the open-closed ring (21) and connects the inner cavity of the open-closed ring (21) and the inner cavity of the rotating pipe (11); a cooling liquid opening (23) is formed on the upper liquid inlet pipe (7) and the lower liquid outlet pipe (8) on the parts that are covered by the open-closed ring (21); when the scraper (9) is in contact with the inner wall of the reaction kettle (1), the cooling liquid opening (23) is aligned with the connecting groove (22) to form a passage.

4. The trifluoromethylaniline kettle residual liquid resource utilization equipment according to claim 2, characterized in that: The tightening assembly comprises a torsion spring (15) sleeved on the outside of the rotating pipe (11), one end of the torsion spring (15) being fixed to the outer wall of the rotating pipe (11), and the other end of the torsion spring (15) being connected to the stirring blade (6) via an adjusting assembly, the adjusting assembly being used to tend to twist the end of the torsion spring (15).

5. The trifluoromethylaniline kettle residual liquid resource utilization equipment according to claim 4, characterized in that: The adjustment assembly comprises a circular ring (16) connected to one end of the torsion spring (15) away from the rotating pipe (11); a pair of circular 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 to the recess (601) at the end of the stirring blade (6) via a bearing; the upper and lower ends of the rotating shaft (17) are respectively fixed to the two circular rings (16); 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 recess (601) via a bearing; the worm gear (19) is meshingly connected to the worm gear (18); and a knob (20) is fixed to the end of the worm gear (19).

6. The trifluoromethylaniline kettle residual liquid resource utilization equipment according to claim 2, characterized in that: The abutting assembly comprises a push plate (24) hinged on the outer wall of the scraper (9); a slider (25) is hinged on one end of the push plate (24) facing away from the scraper (9); the slider (25) is slidably connected to the outer wall of the stirring blade (6) via a slide rail (26); a bolt (27) is threadedly connected to the slider (25) via a threaded hole; an end of the bolt (27) abuts against the outer wall of the stirring blade (6).

7. The trifluoromethylaniline kettle residual liquid resource utilization equipment according to claim 1, characterized in that: 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).

8. The trifluoromethylaniline kettle residual liquid resource utilization equipment according to claim 7, characterized in that: 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.

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