Continuous extraction and recovery device for tert-butyl isocyanate condensation byproducts

Abstract

The utility model belongs to the technical field of chemical production and recovery, and particularly relates to a tert-butyl isocyanate condensation byproduct continuous extraction and recovery device which comprises a tank body, a hollow shaft, a discharge pipe, a feed pipe, a reflux assembly, a driving assembly, an extraction filter cartridge, a turntable, a stirring assembly, a cleaning assembly and a liquid inlet pipe, the hollow shaft is rotatably mounted on the inner wall of the top of the tank body, the rotating disc is rotatably mounted on the inner side wall of the tank body and is rotatably connected with the hollow shaft, the extraction filter cartridge is fixedly mounted on the bottom side of the rotating disc, and the bottom end of the hollow shaft extends into the extraction filter cartridge and is fixedly provided with a hollow plate; a plurality of dispersion pipes are fixedly mounted on the bottom side of the hollow plate, and the liquid inlet pipe is fixedly mounted at the bottom of the tank body, extends into the extraction filter cartridge and is rotationally connected with the extraction filter cartridge. The device is reasonable in design, capable of realizing continuous extraction and recovery of byproducts, high in efficiency and strong in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chemical production recovery, especially relates to a tertiary butyl isocyanate condensation byproduct continuous extraction recovery device. BACKGROUND

[0002] In the field of chemical production, tertiary butyl isocyanate is widely used in the synthesis reaction of pesticide, medicine, polyurethane and other industries as an important organic synthesis intermediate. In the condensation reaction process of tertiary butyl isocyanate, byproducts such as tertiary butylamine, urea compounds and polymers will inevitably be produced. If these byproducts are directly discharged, not only resource waste will be caused, but also serious environmental pollution may be caused; if they are not effectively separated and recovered, the quality and purity of subsequent products will also be affected.

[0003] At present, for the treatment of tertiary butyl isocyanate condensation byproducts, the traditional extraction recovery mode has many problems. For example, most of them adopt intermittent extraction operation, the operation process is complicated, the production efficiency is low, and it is difficult to meet the needs of large-scale industrial production; the stirring effect of part of the extraction equipment is poor, the byproducts and the extraction agent cannot fully contact, resulting in low extraction efficiency; and in the extraction process, impurities are easy to adhere to the inner wall of the extraction equipment, causing blockage, affecting the normal operation of the equipment, increasing the equipment maintenance cost and downtime. In addition, the existing recovery device often cannot realize flexible treatment of the extraction liquid, cannot extract multiple times according to the actual demand, and causes incomplete recovery of byproducts.

[0004] Therefore, an extraction recovery device for tertiary butyl isocyanate condensation byproducts is needed, which can realize continuous extraction recovery, improve extraction efficiency, prevent equipment blockage and facilitate flexible operation.

[0005] The information disclosed in this background section is only intended to increase an understanding of the general context of the present utility model and it should not be taken as an acknowledgement or any form of suggestion that this information forms prior art that is already widely known in the art. UTILITY MODEL CONTENT

[0006] The utility model aims at solving the shortcomings mentioned in the above background art, and provides a tertiary butyl isocyanate condensation byproduct continuous extraction recovery device.

[0007] The above technical purpose of the utility model is realized by the following technical scheme: a tertiary butyl isocyanate condensation byproduct continuous extraction recovery device, comprising a tank body, a hollow shaft, a discharge pipe, a feed pipe, a reflux assembly, a driving assembly, an extraction filter cartridge, a rotating disc, a stirring assembly, a cleaning assembly and a liquid inlet pipe.

[0008] The hollow shaft is rotatably installed on the inner wall of the top of the tank body, the rotating disc is rotatably installed on the inner wall of the tank body and is rotatably connected with the hollow shaft, the extraction filter cartridge is fixedly installed on the bottom side of the rotating disc, the bottom end of the hollow shaft extends into the extraction filter cartridge and is fixedly installed with the hollow plate, the bottom side of the hollow plate is fixedly installed with a plurality of dispersion pipes, the liquid inlet pipe is fixedly installed on the bottom of the tank body and extends into the extraction filter cartridge and is rotatably connected with the extraction filter cartridge, the stirring assembly is arranged on the liquid inlet pipe and the plurality of dispersion pipes, the cleaning assembly is arranged on the hollow plate and is matched with the inner wall of the extraction filter cartridge, a plurality of through holes are formed in the liquid inlet pipe and the plurality of dispersion pipes, the driving assembly is arranged on the inner wall of the top of the tank body and is connected with the rotating disc and the hollow shaft, the backflow assembly is arranged on the outer side of the tank body and is connected with the discharge pipe and the hollow shaft, and the feeding pipe is arranged on the backflow assembly.

[0009] Preferably, the stirring assembly comprises a plurality of stirring rods, and the plurality of stirring rods are fixedly installed on the dispersion pipes and the liquid inlet pipe and are arranged in a staggered manner.

[0010] Preferably, the cleaning assembly comprises a cleaning scraping strip, the hollow plate is arranged in a circular shape, and the cleaning scraping strip is fixedly installed on the outer circumferential side of the hollow plate and is in contact with the inner wall of the extraction filter cartridge.

[0011] Preferably, the cleaning scraping strip is arranged in a spiral shape.

[0012] Preferably, the driving assembly comprises a motor, a driving gear, a rotating shaft, a driven gear, a belt and two pulleys, the motor is fixedly installed on the top of the tank body, the output shaft of the motor extends into the tank body and is fixedly sleeved with the driving gear, the rotating shaft is rotatably installed on the inner wall of the top of the tank body, the bottom end of the rotating shaft is fixedly sleeved with the driven gear which is engaged with the driving gear, the top end of the rotating shaft and the hollow shaft are fixedly sleeved with the pulleys, and the same belt is rotatably connected between the two pulleys.

[0013] Preferably, the driving assembly further comprises a toothed disc, and the toothed disc is fixedly installed on the top side of the rotating disc and is centered on the hollow shaft, and the driven gear is engaged with the toothed disc.

[0014] Preferably, the backflow assembly comprises a conveying pump, two control valves and a backflow pipe, the conveying pump is fixedly installed on the outer side of the tank body, the water inlet of the conveying pump is in communication with the discharge pipe, the water outlet of the conveying pump is connected with the backflow pipe, the end of the backflow pipe away from the conveying pump is rotatably connected with the hollow shaft, the control valves are fixedly installed on the backflow pipe and the discharge pipe, and the feeding pipe is fixedly installed on the backflow pipe and is located between the upper control valve and the hollow shaft.

[0015] Preferably, the top of the tank body is fixedly installed with a shell, and the motor, the pulleys and the belt are located in the shell.

[0016] The utility model discloses beneficial effect is:

[0017] Through set up jar body, hollow shaft, discharge pipe, feed pipe, reflux subassembly, drive subassembly, extraction filter cartridge, carousel, stirring subassembly, cleaning subassembly and liquid inlet pipe mutual cooperation, the utility model discloses can realize the continuous extraction recovery operation to t-butyl isocyanate condensation by-product, through setting up stirring subassembly, can realize stirring operation when extraction filter cartridge rotates, improves extraction efficiency, through setting up cleaning subassembly, can control cleaning scraper strip to the inside wall of extraction filter cartridge and clean operation when extraction filter cartridge rotates, avoids the inside wall of extraction filter cartridge and appears the phenomenon of blockage, through setting up drive subassembly, can provide drive for hollow shaft, thereby can control hollow board to drive a plurality of dispersion pipes and rotate based on hollow shaft as the center, through setting up reflux subassembly, it is convenient to extract the extraction liquid and carry out again extraction operation according to need, simultaneously also facilitates the continuous extraction operation of t-butyl isocyanate condensation by-product, the utility model discloses reasonable in design, and practicality is strong, and it is easy to popularization and application. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0019] Figure 1 The utility model proposes a kind of t-butyl isocyanate condensation by-product continuous extraction recovery device's three-dimensional structure schematic diagram;

[0020] Figure 2 The utility model discloses beneficial effect is: Figure 1 The utility model discloses beneficial effect is:

[0021] Figure 3 The utility model discloses beneficial effect is: Figure 2 The utility model discloses beneficial effect is:

[0022] Figure 4 The utility model discloses beneficial effect is:

[0023] Figure 5 The utility model discloses beneficial effect is: Figure 4 The utility model discloses beneficial effect is:

[0024] Figure 6 The utility model discloses beneficial effect is:

[0025] In the figure: 1, tank body; 11, hollow shaft; 111, hollow plate; 112, dispersion pipe; 113, stirring rod; 114, cleaning scraper; 12, discharge pipe; 13, conveying pump; 14, return pipe; 15, feeding pipe; 16, control valve; 2, rotating disc; 21, extraction filter cartridge; 22, liquid inlet pipe; 3, motor; 31, driving gear; 32, rotating shaft; 33, driven gear; 34, toothed disc; 35, pulley; 36, belt. DETAILED DESCRIPTION

[0026] The technical scheme of the present application will be described clearly and completely below in combination with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] REFERENCE Figures 1-6 A continuous extraction recovery device for t-butyl isocyanate condensation by-products comprises a tank body 1, a hollow shaft 11, a discharge pipe 12, a feeding pipe 15, an extraction filter cartridge 21, a rotating disc 2, and a liquid inlet pipe 22. The hollow shaft 11 is rotatably installed on the top inner wall of the tank body 1. The rotating disc 2 is rotatably installed on the inner side wall of the tank body 1 and is rotatably connected with the hollow shaft 11. The extraction filter cartridge 21 is fixedly installed on the bottom side of the rotating disc 2. The bottom end of the hollow shaft 11 extends into the extraction filter cartridge 21 and is fixedly installed with a hollow plate 111. The bottom side of the hollow plate 111 is fixedly installed with a plurality of dispersion pipes 112. The liquid inlet pipe 22 is fixedly installed at the bottom of the tank body 1 and extends into the extraction filter cartridge 21 and is rotatably connected with the extraction filter cartridge 21.

[0028] A plurality of stirring rods 113 are fixedly installed on the dispersion pipes 112 and the liquid inlet pipe 22. The plurality of stirring rods 113 have a plurality of through holes arranged in a staggered manner. The stirring rods 113 can realize stirring operation of the t-butyl isocyanate condensation by-products when the hollow shaft 11 and the extraction filter cartridge 21 rotate, and can realize efficient extraction when the extraction filter cartridge 21 rotates rapidly.

[0029] The hollow plate 111 is circularly arranged. The outer circumferential side of the hollow plate 111 is fixedly installed with a cleaning scraper 114. The cleaning scraper 114 is in contact with the inner side wall of the extraction filter cartridge 21. The cleaning scraper 114 can clean the inner side wall of the extraction filter cartridge 21 when the hollow plate 111 rotates. In order to achieve the cleaning effect and the effect of disturbing the flow of the t-butyl isocyanate condensation by-products at the same time, the cleaning scraper 114 is spirally arranged.

[0030] The liquid inlet pipe 22 and the plurality of dispersion pipes 112 are provided with a plurality of through holes, the top of the tank body 1 is fixedly installed with a motor 3, the output shaft of the motor 3 extends into the tank body 1 and is fixedly sleeved with a driving gear 31, the top inner wall of the tank body 1 is rotatably installed with a rotating shaft 32, the bottom end of the rotating shaft 32 is fixedly sleeved with a driven gear 33 engaged with the driving gear 31, the top end of the rotating shaft 32 and the hollow shaft 11 are fixedly sleeved with a belt pulley 35, the same belt 36 is drivingly connected to the two belt pulleys 35, which can drive the hollow shaft 11, so that the hollow plate 111 can drive the plurality of dispersion pipes 112 to rotate based on the hollow shaft 11 as the center, the top side of the rotating disc 2 is fixedly installed with a toothed disc 34 based on the hollow shaft 11 as the center, the driven gear 33 is engaged with the toothed disc 34, which can drive the rotating disc 2 to rotate in the opposite direction while driving the hollow shaft 11 to provide driving force;

[0031] The outer side of the tank body 1 is fixedly installed with a delivery pump 13, the water inlet of the delivery pump 13 is in communication with the discharge pipe 12, the water outlet of the delivery pump 13 is connected with a return pipe 14, the end of the return pipe 14 away from the delivery pump 13 is sealingly rotatably connected with the hollow shaft 11, the return pipe 14 and the discharge pipe 12 are fixedly installed with control valves 16, and the feed pipe 15 is fixedly installed on the return pipe 14 and located between the upper control valve 16 and the hollow shaft 11, which is convenient for re-extracting the extracted extract according to the need, and also facilitates the continuous extraction operation of the tert-butyl isocyanate condensation by-product.

[0032] In this embodiment, in order to provide shielding protection for the motor 3, the belt pulley 35 and the belt 36, the top of the tank body 1 is fixedly installed with a shell, and the motor 3, the belt pulley 35 and the belt 36 are located in the shell.

[0033] The circuits, electronic components and module mechanisms involved are all adopted in the prior art, and those skilled in the art can realize them without further description, and the content protected by the present application does not involve the improvement of software, circuit and method.

[0034] Working principle:

[0035] First, turn on the power supply, through the feed pipe 15 with backflow pipe 14 through the hollow shaft 11, hollow plate 111 and dispersion pipe 112 to the extraction filter cartridge 21 injection t-butyl isocyanate condensation by-product solution, while through the liquid inlet pipe 22 to the extraction filter cartridge 21 injection extractant, while starting the motor 3, the motor 3 through the drive gear 31 and driven gear 33 rotation shaft 32 rotation, rotation shaft 32 through the pulley 35 and belt 36 control hollow shaft 11 rotation, so as to drive the hollow plate 111 synchronous rotation, in turn, can control multiple dispersion pipe 112 based on the hollow shaft 11 rotation, while the cooperation of multiple stirring rod 113 can be stirred in the extraction net cylinder t-butyl isocyanate condensation by-product solution operation, in addition, the application of the cleaning blade 114 arranged in spiral can be real-time cleaning operation of the inner wall of the extraction filter cartridge 21, while the motor 3 through the drive gear 31 and driven gear 33 cooperation with the gear plate 34 can control the rotating disc 2 drive extraction net cylinder and hollow shaft 11 keep reverse rotation, so as to effectively improve the rate of uniform stirring, and with the rapid rotation of the extraction filter cartridge 21 can use centrifugal force to speed up the rate of extraction, the extracted solution converges to the tank 1, and is discharged through the discharge pipe 12, when the solution after extraction needs to be extracted again, close the control valve 16 on the discharge pipe 12, and open the control valve 16 on the backflow pipe 14, then through the delivery pump 13 to the solution into the discharge pipe 12 extraction and backflow through the backflow pipe 14 and hollow shaft 11 back to the hollow plate 111, then through the dispersion pipe 112 again dispersed to the extraction filter cartridge 21 in again extraction work.

[0036] The above provides a kind of t-butyl isocyanate condensation by-product continuous extraction recovery device provided by the utility model is introduced in detail.This paper applies specific embodiment to the principle and implementation mode of the utility model are described, the above example is only used to help understand the method of the utility model and its core idea.It should be pointed out that, for the ordinary skill in the art, without departing from the principle of the utility model, the utility model can be improved and modified in several ways, these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A continuous extraction recovery apparatus for tert-butyl isocyanate condensation by-products, characterized by, The utility model provides a kind of extraction device, including tank body (1), hollow shaft (11), discharge pipe (12), feed pipe (15), reflux component, drive assembly, extraction filter cartridge (21), rotating disc (2), stirring assembly, cleaning assembly and liquid inlet pipe (22); The hollow shaft (11) is rotatably installed on the inner wall of the top of the tank body (1), the rotating disc (2) is rotatably installed on the inner wall of the tank body (1) and is rotatably connected with the hollow shaft (11), the extraction filter cartridge (21) is fixedly installed on the bottom side of the rotating disc (2), the bottom end of the hollow shaft (11) extends into the extraction filter cartridge (21) and is fixedly installed with the hollow plate (111), the bottom side of the hollow plate (111) is fixedly installed with a plurality of dispersion pipes (112), the liquid inlet pipe (22) is fixedly installed at the bottom of the tank body (1), and the liquid inlet pipe (22) extends into the extraction filter cartridge (21) and is rotatably connected with the extraction filter cartridge (21), the stirring assembly is arranged on the liquid inlet pipe (22) and the plurality of dispersion pipes (112), the cleaning assembly is arranged on the hollow plate (111) and is matched with the inner wall of the extraction filter cartridge (21), a plurality of through holes are formed in the liquid inlet pipe (22) and the plurality of dispersion pipes (112), the drive assembly is arranged on the inner wall of the top of the tank body (1) and is connected with the rotating disc (2) and the hollow shaft (11), the reflux component is arranged on the outside of the tank body (1) and is connected with the discharge pipe (12) and the hollow shaft (11), and the feed pipe (15) is arranged on the reflux component.

2. A continuous extraction recovery apparatus for tertiary butyl isocyanate condensation by-products according to claim 1, characterized in that: The stirring assembly includes a plurality of stirring rods (113), and the liquid inlet pipe (22) and the dispersion pipes (112) are fixedly installed with a plurality of stirring rods (113), and the plurality of stirring rods (113) have a plurality of through holes arranged in a staggered manner.

3. A continuous extraction recovery apparatus for tertiary butyl isocyanate condensation by-products according to claim 1, characterized in that: The cleaning assembly includes cleaning scraping strips (114), the hollow plate (111) is arranged in a circular shape, the outer circumferential side of the hollow plate (111) is fixedly installed with cleaning scraping strips (114), and the cleaning scraping strips (114) are in contact with the inner wall of the extraction filter cartridge (21).

4. A continuous extraction recovery apparatus for tertiary butyl isocyanate condensation by-products according to claim 3, characterised in that: The cleaning scraping strips (114) are arranged in a spiral shape.

5. A continuous extraction recovery apparatus for tertiary butyl isocyanate condensation by-products according to claim 1, characterized in that: The drive assembly includes a motor (3), a drive gear (31), a rotating shaft (32), a driven gear (33), a belt (36) and two pulleys (35), the motor (3) is fixedly installed at the top of the tank body (1), the output shaft of the motor (3) extends into the tank body (1) and is fixedly sleeved with the drive gear (31), the rotating shaft (32) is rotatably installed on the inner wall of the top of the tank body (1), the bottom end of the rotating shaft (32) is fixedly sleeved with the driven gear (33) engaged with the drive gear (31), the top end of the rotating shaft (32) and the hollow shaft (11) are fixedly sleeved with the pulleys (35), and the same belt (36) is drivingly connected with the two pulleys (35).

6. A continuous apparatus for recovering tert-butyl isocyanate condensation by-products according to claim 5, characterized in that: The drive assembly further includes a toothed disc (34), and the toothed disc (34) is fixedly installed on the top side of the rotating disc (2) with the hollow shaft (11) as the center, and the driven gear (33) is engaged with the toothed disc (34).

7. A continuous extraction recovery apparatus for tertiary butyl isocyanate condensation by-products according to claim 1, characterized in that: The backflow assembly comprises a delivery pump (13), two control valves (16) and a backflow pipe (14), the outer side of the tank body (1) is fixedly provided with the delivery pump (13), the water inlet of the delivery pump (13) is communicated with the discharge pipe (12), the water outlet of the delivery pump (13) is connected with the backflow pipe (14), the end of the backflow pipe (14) away from the delivery pump (13) is sealingly and rotatably connected with the hollow shaft (11), the control valves (16) are fixedly arranged on the backflow pipe (14) and the discharge pipe (12), and the feeding pipe (15) is fixedly arranged on the backflow pipe (14) and located between the upper control valve (16) and the hollow shaft (11).

8. A continuous extraction recovery apparatus for tertiary butyl isocyanate condensation by-products according to claim 5, characterized in that: The top of the tank body (1) is fixedly provided with a shell, the motor (3), the belt wheel (35) and the belt (36) are located in the shell.

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