Centrifugal device for producing p-hydroxybenzonitrile

Abstract

The utility model discloses a centrifugal device for para-hydroxybenzonitrile production, which comprises an outer cylinder and an inner cylinder rotatably connected in the outer cylinder, a cleaning mechanism for cleaning the inner wall of the outer cylinder is connected in the outer cylinder, the cleaning mechanism comprises a plurality of scrapers, annular teeth and a second motor, the scrapers are attached to the inner wall of the outer cylinder, and the annular teeth are arranged on the inner wall of the outer cylinder. The top of the scraper is connected with the annular tooth, the second motor is used for driving the annular tooth to rotate, the annular tooth is connected with a locking mechanism used for locking the annular tooth, and a spraying mechanism is connected into the outer cylinder. Materials in the inner cylinder are cleaned, the quality of the materials is improved, the inner cylinder rotates stably, deflection and deviation are avoided, use is safe and reliable, spraying operation on the inner side of the outer cylinder is achieved, meanwhile, the second motor drives the rotating teeth to rotate, then the annular teeth are driven to rotate, rotation of the multiple scrapers is achieved, cleaning of the inner wall of the outer cylinder is facilitated, the effect is remarkable, and the practicability is high. Manual operation is not needed, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of p-hydroxybenzonitrile production, in particular to a centrifugal device for p-hydroxybenzonitrile production. Background Art

[0002] p-Hydroxybenzonitrile is a chemical substance with the molecular formula C7H5NO. The pure product is a shiny flaky white crystal. It is soluble in a variety of organic solvents and easily soluble in hot water. p-Hydroxybenzonitrile is an important fine chemical raw material and intermediate, and is widely used in the synthesis of a variety of medicines, fragrances, pesticides, liquid crystal materials and corrosion inhibitors.

[0003] During the production process of para-hydroxybenzonitrile, centrifugation is required to separate the components of liquid and solid particles or liquid and liquid mixtures by centrifugal force. After multiple centrifugations, the inner wall of the outer cylinder will be attached with a lot of dirt and impurities, which has a certain viscosity. However, the space between the inner cylinder and the outer cylinder is limited, and the inner cylinder is not easy to disassemble, resulting in troublesome cleaning operations, low efficiency, and poor cleaning effects. Utility Model Content

[0004] The utility model aims to provide a centrifugal device for producing p-hydroxybenzonitrile, which has the advantages of convenient cleaning of the inner wall of the outer cylinder, significant effect, no need for manual operation, saving time and labor, and solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centrifugal device for producing parahydroxybenzonitrile, comprising an outer cylinder and an inner cylinder rotatably connected to the outer cylinder, the outer cylinder is connected with a cleaning mechanism for cleaning the inner wall of the outer cylinder, the cleaning mechanism comprises a plurality of scrapers, annular teeth, and a second motor, the plurality of scrapers are attached to the inner wall of the outer cylinder, and the tops of the scrapers are connected to the annular teeth, the second motor is used to drive the annular teeth to rotate, the annular teeth are connected with a locking mechanism for locking the annular teeth, and the outer cylinder is connected with a spraying mechanism.

[0006] Preferably, the cleaning mechanism also includes multiple connecting rods, multiple guide blocks, a rotating shaft, and rotating teeth. The two ends of the connecting rods are connected to the scraper and the guide blocks. The guide blocks are slidably connected to the guide grooves arranged on the outside of the inner cylinder. The power output end of the motor 2 is connected to the rotating shaft, the end of the rotating shaft is connected to the rotating teeth, and the rotating teeth are connected to the annular teeth.

[0007] Preferably, the annular teeth are rotatably connected in the outer cylinder, and the rotating teeth are meshed and connected with the annular teeth.

[0008] Preferably, the locking mechanism includes a gear, a toothed pressure plate, and a hydraulic telescopic rod 2, wherein the gear is fixedly connected to the rotating shaft, the end of the hydraulic telescopic rod 2 is connected to the outer cylinder, and the output end of the hydraulic telescopic rod 2 is connected to the toothed pressure plate, and the toothed pressure plate matches the gear.

[0009] Preferably, the spray mechanism includes an annular tube, a hydraulic telescopic rod, multiple spray heads, a lifting block, multiple push-pull plates, multiple slide grooves, multiple sliding blocks, and multiple flexible joints. The end of the hydraulic telescopic rod is connected to the outer tube, and the power output end of the hydraulic telescopic rod is connected to the lifting block, the two ends of the push-pull plate are connected to the lifting block and the sliding block, the slide groove is arranged on the corresponding spray head, the sliding block is slidably connected to the slide groove, the flexible joint is connected to the annular tube, and the flexible joint is docked with the corresponding spray head.

[0010] Preferably, the annular tube is connected to a fixing frame, and the fixing frame is fixed in the outer tube.

[0011] Preferably, the inner bottom end of the outer cylinder is connected to a base, and the inner cylinder is rotatably connected to the top of the base.

[0012] Preferably, the outer cylinder is connected to a discharge pipe, a discharge channel is provided in the base, the discharge pipe is communicated with the discharge channel, the discharge channel matches the discharge port of the inner cylinder, and the discharge pipe is connected to a solenoid valve.

[0013] Preferably, the outer cylinder is connected to motor 1 and a sewage pipe, and the power output end of motor 1 is connected to the inner cylinder.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model is provided with a cleaning mechanism, a locking mechanism and a spraying mechanism, and high-pressure water in the annular tube is sprayed from multiple spray heads to clean the material in the inner cylinder and improve the material quality. During the centrifugation process, the locking mechanism is used to lock the annular teeth to fix multiple scrapers. The guide block cooperates with the guide groove to improve the stability of the rotation of the inner cylinder and avoid skewness and deviation, which is safe and reliable to use. When the centrifugation is completed, the hydraulic telescopic rod 1 can drive the lifting block to move downward, and the lifting block applies thrust to the push-pull plate to make multiple spray heads open synchronously, that is, the spray heads face the inner side of the outer cylinder to spray the inner side of the outer cylinder. At the same time, the motor 2 drives the rotating teeth to rotate, and then drives the rotation of the annular teeth to realize the rotation of multiple scrapers, which is convenient for cleaning the inner wall of the outer cylinder. The effect is remarkable, no manual operation is required, and time and labor are saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the outer cylinder of the utility model;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4This is a schematic diagram of the inner cylinder structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the spray mechanism of the utility model;

[0020] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0021] Figure 7 This is a schematic diagram of the connection structure between the inner cylinder and the outer cylinder of the utility model;

[0022] Figure 8 for Figure 7 Enlarged view of point C in the middle;

[0023] Fig. 9 It is a schematic diagram of the connection structure between the scraper and the outer cylinder of the utility model.

[0024] In the figure: 1. outer cylinder; 2. motor 1; 3. sewage pipe; 4. water pipe; 5. motor 2; 6. annular pipe; 7. hydraulic telescopic rod 1; 8. sprinkler head; 9. scraper; 10. inner cylinder; 11. base; 12. discharge pipe; 13. annular gear; 14. rotating shaft; 15. gear; 16. gear pressure plate; 17. hydraulic telescopic rod 2; 18. rotating gear; 19. lifting block; 20. push-pull plate; 21. slide groove; 22. sliding block; 23. flexible joint; 24. connecting rod; 25. guide block; 26. guide groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 9 The utility model provides a centrifugal device for the production of p-hydroxybenzonitrile, comprising an outer cylinder 1 and an inner cylinder 10 rotatably connected to the outer cylinder 1, wherein the inner cylinder 10 is provided with a plurality of centrifugal holes, and under the action of centrifugal force, the liquid in the material is thrown out through the centrifugal holes and finally discharged from the sewage pipe 3. A cleaning mechanism for cleaning the inner wall of the outer cylinder 1 is connected to the inner cylinder 1, and the cleaning mechanism comprises a plurality of scrapers 9, annular teeth 13, and a motor 2 5. Three scrapers 9 may be provided, and the adjacent angles are 120°. The scrapers 9 are attached to the inner wall of the outer cylinder 1, and the top of the scrapers 9 is connected to the annular teeth 13, and the motor 2 5 is used to drive the annular teeth 13 to rotate. The annular teeth 13 are connected to a locking mechanism for locking the annular teeth 13, and a spray mechanism is connected to the inner cylinder 1.

[0027] The annular pipe 6 is connected to a water pipe 4, and the water pipe 4 is connected to a water supply mechanism. The water supply mechanism belongs to the prior art and provides a water source.

[0028] During normal centrifugation, the water supply mechanism delivers water to the annular tube 6 , which is then sprayed out from the spray head 8 and sprinkled on the materials in the inner tube 10 , making it convenient to clean the materials, and the sewage is discharged from the sewage pipe 3 .

[0029] When the centrifugal operation is completed, the motor 2 5 drives the rotating shaft 14 to rotate, and then drives the rotating teeth 18 to rotate. The rotating teeth 18 cooperate with the annular teeth 13 to drive the annular teeth 13 to rotate, thereby realizing the rotation of the scraper 9, which is convenient for scraping the stains on the inner wall of the outer cylinder 1. At the same time, the hydraulic telescopic rod 1 7 drives the lifting block 19 to move downward, and simultaneously applies thrust to multiple push-pull plates 20, so that the sliding block 22 slides on the slide groove 21, thereby realizing the synchronous rotation of multiple spray heads 8, that is, the spray direction of the spray head 8 is toward the inner wall of the outer cylinder 1. With the use of the scraper 9, a good cleaning purpose is achieved with high efficiency and significant cleaning effect.

[0030] The cleaning mechanism also includes a plurality of connecting rods 24, a plurality of guide blocks 25, a rotating shaft 14, and a rotating tooth 18. The two ends of the connecting rod 24 are connected to the scraper 9 and the guide block 25. The guide block 25 is slidably connected to the guide groove 26 arranged on the outer side of the inner cylinder 10. The power output end of the motor 25 is connected to the rotating shaft 14. The end of the rotating shaft 14 is connected to the rotating tooth 18, and the rotating tooth 18 is connected to the annular tooth 13. During the centrifugation process, the locking mechanism is locked to the annular tooth 13, thereby fixing the three scrapers 9, fixing the guide block 25, and the inner cylinder 10 is rotated at a high speed. The guide block 25 slides on the guide groove 26, which can improve the stability of the rotation of the inner cylinder 10, prevent skew and offset, and centrifuge safely and reliably.

[0031] The annular teeth 13 are rotatably connected in the outer cylinder 1 , so as to improve the rotation stability of the annular teeth 13 , that is, the scraper 9 rotates stably, and the rotating teeth 18 are meshed and connected with the annular teeth 13 .

[0032] The locking mechanism includes a gear 15, a tooth pressure plate 16, and a hydraulic telescopic rod 17. The gear 15 is fixedly connected to the rotating shaft 14. The end of the hydraulic telescopic rod 17 is connected to the outer cylinder 1, and the output end of the hydraulic telescopic rod 17 is connected to the tooth pressure plate 16. The tooth pressure plate 16 matches the gear 15. During centrifugation, the hydraulic telescopic rod 17 drives the tooth pressure plate 16 to move forward, so that the tooth pressure plate 16 is connected to the gear 15, and the rotating shaft 14 and the rotating teeth 18 are locked, and then the annular teeth 13 are locked and limited to prevent the scraper 9 from moving, and the guide block 25 is fixed, ensuring the stability of the rotation of the inner cylinder 10. When the inner wall of the outer cylinder 1 needs to be cleaned after the centrifugation is completed, the hydraulic telescopic rod 17 drives the tooth pressure plate 16 to return to its position, so that the tooth pressure plate 16 is separated from the gear 15, and the rotating shaft 14 and the rotating teeth 18 are loosened. The motor 25 drives the annular teeth 13 to rotate, and the scraper 9 is rotated, which is convenient for cleaning operations.

[0033] The spray mechanism includes an annular tube 6, a hydraulic telescopic rod 7, a plurality of spray heads 8, a lifting block 19, a plurality of push-pull plates 20, a plurality of chutes 21, a plurality of sliding blocks 22, and a plurality of flexible joints 23. The end of the hydraulic telescopic rod 7 is connected to the outer cylinder 1, and the power output end of the hydraulic telescopic rod 7 is connected to the lifting block 19. The two ends of the push-pull plate 20 are connected to the lifting block 19 and the sliding block 22. The chutes 21 are provided at the corresponding spray heads 8. The sliding block 22 is slidably connected to the chutes 21. The flexible joints 23 are connected to the annular tube 6, and the flexible joints 23 are connected to the corresponding spray heads 8. Four spray heads 8 can be provided, and the adjacent angles are 90°. During the centrifugation process, the spray direction of the four spray heads 8 is toward the inner cylinder 10, which can clean the acidic water and potassium sulfate in the material and then throw them out through centrifugation. When cleaning the inner wall of the outer cylinder 1, the hydraulic telescopic rod 7 drives the lifting block 19 to move downward, and the lifting block 19 simultaneously applies downward thrust to the four push-pull plates 20, and the push-pull plates 20 apply thrust to the corresponding sliding blocks 22, and the sliding blocks 22 slide on the slide groove 21, so that the four spray heads 8 are opened synchronously, that is, the spray direction of the spray heads 8 is toward the inner wall of the outer cylinder 1, which is convenient for flushing. When the cleaning is completed, the hydraulic telescopic rod 7 drives the lifting block 19 to move upward, and the lifting block 19 simultaneously applies upward pulling force to the four push-pull plates 20, and the push-pull plates 20 apply pulling force to the corresponding sliding blocks 22, so that the sliding blocks 22 move back on the slide groove 21, and the four spray heads 8 are contracted synchronously, so that the spray direction of the four spray heads 8 is toward the inner cylinder 10.

[0034] The annular tube 6 is connected to a fixing frame, and the fixing frame is fixed in the outer tube 1 to fix the annular tube 6 .

[0035] The inner bottom end of the outer cylinder 1 is connected to a base 11 , and the inner cylinder 10 is rotatably connected to the top of the base 11 , so that the inner cylinder 10 rotates stably.

[0036] The outer cylinder 1 is connected to a discharge pipe 12, and a discharge channel is provided in the base 11. The discharge pipe 12 is in communication with the discharge channel, and the discharge channel matches the discharge port of the inner cylinder 10. The discharge pipe 12 is connected to a solenoid valve. When the centrifugation is completed and the material needs to be discharged, the discharge port of the inner cylinder 10 is aligned with the discharge channel, the solenoid valve is opened, and the material is transported to the discharge pipe 12 through the discharge channel, and then discharged from the end of the discharge pipe 12.

[0037] The outer cylinder 1 is connected to a motor 2 and a sewage pipe 3. The power output end of the motor 2 is connected to the inner cylinder 10. The motor 2 drives the inner cylinder 10 to rotate at a high speed, which is convenient for centrifugal operation.

[0038] Working principle: the material is transported to the inner cylinder 10 through the feed pipe at the top of the outer cylinder 1, and then the motor 2 drives the inner cylinder 10 to rotate at high speed. At the same time, the water supply mechanism supplies water to the annular tube 6, so that water is sprayed out from the four sprinkler heads 8, which makes it easier to clean the material. Under the action of centrifugal force, the sewage is thrown out and finally discharged from the sewage pipe 3. After centrifugation, the material is discharged from the discharge pipe 12. When the inner wall of the outer cylinder 1 needs to be cleaned, the locking mechanism releases the fixation of the annular gear 13, and the motor 25 drives the rotating gear 18 to rotate, driving the rotation of the annular gear 13, so that the three scrapers 9 rotate synchronously, which is convenient for scraping off the dirt, and the hydraulic telescopic rod 17 drives the lifting block 19 to move downward, and the lifting block 19 applies a downward thrust to the four push-pull plates 20 synchronously, and the push-pull plates 20 apply a thrust to the corresponding sliding blocks 22, and the sliding blocks 22 slide on the slide groove 21, so that the four spray heads 8 are opened synchronously, that is, the spraying direction of the spray head 8 is toward the inner wall of the outer cylinder 1, and the inner wall of the outer cylinder 1 is sprayed. With the use of the scraper 9, the cleaning effect is remarkable, and the sewage is discharged from the sewage pipe 3. The operation is flexible and convenient, and the practicability is strong.

[0039] 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 centrifugal device for producing p-hydroxybenzonitrile, comprising an outer cylinder (1) and an inner cylinder (10) rotatably connected to the outer cylinder (1), characterized in that: The outer cylinder (1) is connected to a cleaning mechanism for cleaning the inner wall of the outer cylinder (1), the cleaning mechanism comprising a plurality of scrapers (9), an annular gear (13), and a second motor (5), the plurality of scrapers (9) being attached to the inner wall of the outer cylinder (1), and the top of the scraper (9) being connected to the annular gear (13), the second motor (5) being used to drive the annular gear (13) to rotate, the annular gear (13) being connected to a locking mechanism for locking the annular gear (13), and the outer cylinder (1) being connected to a spraying mechanism.

2. A centrifugal device for producing p-hydroxybenzonitrile according to claim 1, characterized in that: The cleaning mechanism further comprises a plurality of connecting rods (24), a plurality of guide blocks (25), a rotating shaft (14), and a rotating tooth (18); the two ends of the connecting rod (24) are connected to the scraper (9) and the guide block (25); the guide block (25) is slidably connected to a guide groove (26) arranged on the outside of the inner cylinder (10); the power output end of the motor 2 (5) is connected to the rotating shaft (14); the end of the rotating shaft (14) is connected to the rotating tooth (18); and the rotating tooth (18) is connected to the annular tooth (13).

3. A centrifugal device for producing p-hydroxybenzonitrile according to claim 2, characterized in that: The annular teeth (13) are rotatably connected to the outer cylinder (1), and the rotating teeth (18) are meshed and connected with the annular teeth (13).

4. A centrifugal device for producing p-hydroxybenzonitrile according to claim 2, characterized in that: The locking mechanism comprises a gear (15), a toothed pressure plate (16), and a second hydraulic telescopic rod (17); the gear (15) is fixedly connected to the rotating shaft (14); the end of the second hydraulic telescopic rod (17) is connected to the outer cylinder (1), and the output end of the second hydraulic telescopic rod (17) is connected to the toothed pressure plate (16); the toothed pressure plate (16) matches the gear (15).

5. A centrifugal device for producing p-hydroxybenzonitrile according to claim 1, characterized in that: The spray mechanism comprises an annular tube (6), a hydraulic telescopic rod (7), a plurality of spray heads (8), a lifting block (19), a plurality of push-pull plates (20), a plurality of slide grooves (21), a plurality of sliding blocks (22), and a plurality of flexible joints (23). The end of the hydraulic telescopic rod (7) is connected to the outer tube (1), and the power output end of the hydraulic telescopic rod (7) is connected to the lifting block (19). The two ends of the push-pull plate (20) are connected to the lifting block (19) and the sliding block (22). The slide groove (21) is arranged on the corresponding spray head (8), and the sliding block (22) is slidably connected to the slide groove (21). The flexible joint (23) is connected to the annular tube (6), and the flexible joint (23) is butt-jointed with the corresponding spray head (8).

6. A centrifugal device for producing p-hydroxybenzonitrile according to claim 5, characterized in that: The annular tube (6) is connected to a fixing frame, and the fixing frame is fixed inside the outer tube (1).

7. A centrifugal device for producing p-hydroxybenzonitrile according to claim 1, characterized in that: The inner bottom end of the outer cylinder (1) is connected to a base (11), and the inner cylinder (10) is rotatably connected to the top of the base (11).

8. A centrifugal device for producing p-hydroxybenzonitrile according to claim 7, characterized in that: The outer cylinder (1) is connected to a discharge pipe (12), a discharge channel is provided in the base (11), the discharge pipe (12) is in communication with the discharge channel, the discharge channel matches the discharge port of the inner cylinder (10), and the discharge pipe (12) is connected to a solenoid valve.

9. A centrifugal device for producing p-hydroxybenzonitrile according to claim 1, characterized in that: The outer cylinder (1) is connected to a motor (2) and a sewage pipe (3), and the power output end of the motor (2) is connected to the inner cylinder (10).

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