A dehydration and drying apparatus and method for the production of bromochlorohydantoin

By alternating the lifting and lowering of the multifunctional inner disc and conduit, combined with the position replacement of the sponge inner liner and hot air drying, the problems of easy breakage of bromochlorohydantoin particles and sponge contamination during centrifugal dehydration in existing technologies are solved, achieving efficient and stable dehydration and drying as well as automatic discharge.

CN120740283BActive Publication Date: 2025-12-02LONGKOU KEDA CHEM
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Patent Information

Application Number
CN202511220902.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2025-12-02
Estimated Expiration
2045-08-29

AI Technical Summary

Technical Problem

Existing centrifugal dewatering equipment is prone to particle breakage and material loss when processing bromochlorohydantoin particles, and sponge filters are easily contaminated, affecting filtration efficiency and product quality.

Method used

The design incorporates a multi-functional inner disc and guide tube that alternately lift and lower, combined with the position replacement of the sponge inner liner and hot air drying, to achieve the alternating use of the sponge inner liner and efficient dehydration and drying. Automatic material discharge is achieved through the design of the transmission block and transmission port.

Benefits of technology

It improves dehydration and drying efficiency, prevents particle breakage, reduces secondary pollution, ensures high-quality particle discharge, and simplifies the cleaning and discharge process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a dehydration and drying apparatus and method for the production of bromochlorohydantoin, relating to the field of centrifugal dehydration technology. The invention includes a dehydration tank, inside which a centrifuge cylinder is rotatably mounted. Inside the centrifuge cylinder are two sets of pressure rings, with a multifunctional inner disc clamped between the two sets of pressure rings. The multifunctional inner disc consists of two sets of conical discs and a central tube, with the two sets of conical discs symmetrically distributed about the central tube. A sponge liner is disposed between the multifunctional inner disc and the centrifuge cylinder. This invention utilizes the multifunctional inner disc and conduit configuration, employing the alternating raising and lowering of the upper and lower conduits to achieve sponge liner switching. When the upper conduit descends, the sponge liner is twisted together using a bag-tying method, and combined with the use of the pressure rings, initial squeezing and drying of the sponge liner is achieved. Then, hot air is injected through the lower conduit for secondary drying of the sponge liner. This allows for alternating use and drying of the sponge liner, improving dehydration and drying efficiency.
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Description

Technical Field

[0001] This invention relates to the field of centrifugal dehydration technology, specifically to a dehydration and drying apparatus and method for the production of bromochlorohydantoin. Background Technology

[0002] Bromochlorohydantoin is an important organic chemical raw material widely used in pesticides, pharmaceuticals, and chemical industries, especially in the pharmaceutical industry. The production of bromochlorohydantoin typically involves multiple steps, including solvent extraction, reaction synthesis, and subsequent dehydration and drying.

[0003] Currently, common methods for dehydrating and drying bromochlorohydantoin mainly include heating drying, vacuum drying, and centrifugal dehydration drying. During centrifugal dehydration drying, the bromochlorohydantoin particles are subjected to mechanical stress under the high-speed centrifugal force, leading to particle breakage or material loss. This not only affects the final product quality but may also result in yield losses, especially when maintaining particle integrity is required. A utility model patent (publication number: CN211552242U) discloses a centrifugal dehydration device, including a barrel. A servo motor is located on the lower inner surface of the barrel. A storage rack is mounted on the output shaft of the servo motor. The storage rack includes an I-shaped plate fixedly connected to the output shaft of the servo motor at the center of its lower surface. A first telescopic rod is located on the upper surface of the I-shaped plate. A fastening knob is located on the upper side of the fixed end of the first telescopic rod, and a circular plate is located at the top of the first telescopic rod. The upper surface of the circular plate has evenly distributed through holes, and the upper surface of the I-shaped plate has slots corresponding to the through holes. An annular sponge pad with its outer side in contact with the inner side of the barrel is placed inside the barrel. Although the patent proposes the concept of using a ring-shaped sponge pad as a centrifugal filtration buffer, when applied to the bromochlorohydantoin particle filtration of this invention, due to the small size of the bromochlorohydantoin particles, the particles will become embedded in the sponge during the centrifugal filtration process. The water absorbed by the sponge can easily cause secondary pollution to the bromochlorohydantoin particles, requiring the sponge to be completely drained, which affects the filtration efficiency. Furthermore, after filtration, bromochlorohydantoin particles are easily stuck to the sponge, making discharge difficult. Therefore, there is an urgent need to provide a centrifugal dehydration and drying equipment specifically for small particles to meet the production requirements of bromochlorohydantoin. Summary of the Invention

[0004] The purpose of this invention is to solve the above problems by providing a dehydration and drying apparatus and method for the production of bromochlorohydantoin.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] A dehydration and drying device for the production of bromochlorohydantoin includes a dehydration tank. A centrifuge cylinder is rotatably installed inside the dehydration tank. Two sets of pressure rings are arranged inside the centrifuge cylinder. A multifunctional inner disc is clamped between the two sets of pressure rings. The multifunctional inner disc is composed of two sets of conical discs and a middle tube. The two sets of conical discs are symmetrically distributed about the middle tube. The radius of the upper conical disc is smaller than that of the lower conical disc. A sponge liner is arranged between the multifunctional inner disc and the centrifuge cylinder. An outer shaping part is provided on the outer surface of the sponge liner. The sponge liner between the lower conical disc and the centrifuge cylinder is tightly compressed. Multiple sets of triangular transmission ports are circumferentially opened on the outer side of the lower conical disc. Multiple sets of transmission boxes are circumferentially arranged on the outer side of the centrifuge cylinder. A transmission block is slidably connected inside the transmission box. A top spring is arranged between the transmission block and the transmission box. The transmission block is inserted into the triangular transmission port. The insertion end of the transmission block is arranged in a right-angled triangle. A ball bearing is rotatably installed on the outer side of the straight side.

[0007] Both ends of the intermediate tube are provided with lifting guide tubes, and a feeding tee is provided in the middle of the intermediate tube. The feeding tee can be inserted into the guide tube. Both ends of the outer shaping component pass through the corresponding multi-functional inner plate and the pressure ring, and are respectively fixedly installed on the two sets of guide tubes.

[0008] Furthermore, the interior of the intermediate tube is provided with a spiral guide groove, and the outer side of the guide tube is provided with an outer spiral protrusion. The outer spiral protrusion is threaded into the spiral guide groove, and the thickness of the outer spiral protrusion is less than the depth of the spiral guide groove.

[0009] Furthermore, two sets of lifting cylinders are fixedly installed on the outside of the dehydration tank. Lifting rods are fixedly installed on the telescopic ends of the lifting cylinders. Lifting pipes are rotatably installed inside the lifting rods. The lifting pipes are fixedly connected to the corresponding conduits. Hot air pipes are fixedly installed on the ends of the lifting pipes away from the conduits. Feeding branch pipes are provided on the outside of the upper hot air pipes. Clamping cylinders are fixedly installed on the top of the upper lifting rods. The telescopic ends of the clamping cylinders can clamp and fix the lifting pipes in the lifting rods.

[0010] Furthermore, the inner wall of the dehydration tank is provided with two sets of inner baffles, the centrifuge cylinder is rotatably installed between the two sets of inner baffles, the top and bottom of the centrifuge cylinder are provided with exhaust pipes, the outer side of the dehydration tank is provided with a drain pipe, the drain pipe is located directly above the lower inner baffle, and the bottom of the dehydration tank is provided with a discharge valve.

[0011] Furthermore, a drive motor is fixedly installed below the dehydration tank, and a drive wheel is fixedly installed at the output end of the drive motor. The drive wheel is located in the dehydration tank. A driven wheel is fixedly installed at the bottom of the centrifuge cylinder. The drive wheel and the driven wheel mesh with each other. A locking device is provided at the output end of the drive motor.

[0012] Furthermore, the top of the inner partition described below is inclined outward.

[0013] Furthermore, the bottom of the centrifuge tube is cone-shaped.

[0014] Furthermore, the outer shaping component consists of multiple sets of pull ropes arranged in a ring on the outside of the sponge liner.

[0015] Furthermore, the outer shaping component is made of an outer wrapping mesh.

[0016] A dehydration and drying method for the production of bromochlorohydantoin includes the following steps:

[0017] S1. Feeding: The bromochlorohydantoin chemical synthesis particles are injected into the equipment through the feeding branch pipe and compressed air flow, and then enter the centrifuge through the conduit and the feeding tee pipe.

[0018] S2. Dehydration and drying: Start the equipment. The centrifuge tube centrifuges the chemically synthesized bromochlorohydantoin particles for dehydration and drying. The sponge inner liner provides protection and water absorption, improving the efficiency of centrifugal dehydration and drying. During the centrifugal dehydration process, the upper and lower guide tubes alternately rise and fall to replace the position of the sponge inner liner and remove water from the sponge, thus completing high-speed and high-quality dehydration and drying.

[0019] S3. Discharge: Turn off the equipment, the centrifuge drum stops rotating, then control the multi-functional inner disc to rotate relative to the centrifuge drum. When the transmission block disengages from the triangular transmission port, the dehydrated and dried bromochlorohydantoin chemical synthesis particles are discharged through the triangular transmission port. Then open the discharge valve to discharge the material.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. This invention adopts a multi-functional inner disc and conduit design. By alternating the raising and lowering of the upper and lower conduits, the sponge inner liner can be switched while filtering. When the upper conduit descends, the sponge inner liner is twisted together by tying a bag. With the use of the pressure ring, the sponge inner liner is initially squeezed and dried. Then, hot air is injected through the lower conduit to dry the sponge inner liner a second time. This allows for the alternating use and drying of the sponge inner liner, improving the dehydration and drying efficiency.

[0022] 2. This invention controls the lifting and lowering of the upper guide tube, which not only repeatedly scrapes and presses the inner liner of the sponge, but also drives the multi-functional inner disc to rotate relative to the centrifuge cylinder. The inclined surface of the transmission block pushes the transmission block away from the triangular transmission port, opening the triangular transmission port and automatically discharging the particles. At the same time, under the action of the top spring, the transmission block repeatedly strikes the multi-functional inner disc, causing the inner liner of the sponge to vibrate and shake off the particles stuck to the inner liner of the sponge. No manual cleaning is required for the discharge, resulting in high discharge efficiency. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2This is a schematic diagram of the internal structure of the dehydration tank of the present invention;

[0025] Figure 3 This is a schematic cross-sectional view of the dehydration tank of the present invention;

[0026] Figure 4 This is a schematic cross-sectional view of the centrifuge cylinder of the present invention;

[0027] Figure 5 This is a schematic diagram of the sponge inner liner structure of the present invention;

[0028] Figure 6 This is an exploded view of the internal structure of the sponge liner of this invention.

[0029] Reference numerals: 1. Dehydration tank; 11. Inner partition; 12. Drain pipe; 13. Exhaust pipe; 14. Discharge valve; 2. Centrifuge cylinder; 21. Driven wheel; 22. Pressure ring; 23. Transmission box; 24. Transmission block; 25. Top spring; 26. Ball bearing; 3. Lifting cylinder; 31. Lifting rod; 32. Clamping cylinder; 4. Multifunctional inner disc; 41. Triangular transmission port; 42. Spiral guide groove; 43. Feeding tee pipe; 5. Sponge inner liner; 51. Outer shaping part; 6. Guide tube; 61. Outer spiral protrusion; 7. Lifting pipe; 8. Hot air pipe; 9. Drive motor; 10. Drive wheel. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0031] Example 1, as Figures 1-6 As shown, a dehydration and drying device for the production of bromochlorohydantoin includes a dehydration tank 1. A centrifuge cylinder 2 is rotatably installed inside the dehydration tank 1. Two sets of pressure rings 22 are arranged inside the centrifuge cylinder 2. A multifunctional inner disc 4 is clamped between the two sets of pressure rings 22. The multifunctional inner disc 4 is composed of two sets of conical discs and a middle tube. The two sets of conical discs are symmetrically distributed about the middle tube. The radius of the upper conical disc is smaller than that of the lower conical disc. A sponge liner 5 is arranged between the multifunctional inner disc 4 and the centrifuge cylinder 2. An outer shaping part 51 is arranged on the outer surface of the sponge liner 5. The sponge liner 5 between the lower conical disc and the centrifuge cylinder 2 is tightly squeezed. Multiple sets of triangular transmission ports 41 are opened in a ring on the outer side of the lower conical disc. Multiple sets of transmission boxes 23 are arranged in a ring on the outer side of the centrifuge cylinder 2. A transmission block 24 is slidably connected inside the transmission box 23. A top spring 25 is arranged between the transmission block 24 and the transmission box 23. The transmission block 24 is inserted into the triangular transmission port 41. The insertion end of the transmission block 24 is arranged in a right-angled triangle. A ball bearing 26 is rotatably installed on the outer side of the straight side.

[0032] Both ends of the intermediate tube are equipped with lifting guide tubes 6. A feeding tee tube 43 is provided in the middle of the intermediate tube. The feeding tee tube 43 can be inserted into the guide tube 6. The two ends of the outer shaping part 51 pass through the corresponding multi-functional inner plate 4 and the pressure ring 22 respectively, and are fixedly installed on the two sets of guide tubes 6 respectively.

[0033] The inner wall of the dehydration tank 1 is provided with two sets of inner baffles 11. The centrifuge cylinder 2 is rotatably installed between the two sets of inner baffles 11. The top and bottom of the centrifuge cylinder 2 are provided with exhaust pipes 13. The outer side of the dehydration tank 1 is provided with a drain pipe 12, which is located directly above the lower inner baffle 11. The bottom of the dehydration tank 1 is provided with a discharge valve 14.

[0034] A drive motor 9 is fixedly installed at the bottom of the dehydration tank 1. A drive wheel 10 is fixedly installed at the output end of the drive motor 9. The drive wheel 10 is located in the dehydration tank 1. A driven wheel 21 is fixedly installed at the bottom of the centrifuge cylinder 2. The drive wheel 10 and the driven wheel 21 mesh with each other. A locking device is provided at the output end of the drive motor 9.

[0035] Feeding: The upper conduit 6 descends to the bottom, and the conduit 6 gathers the excess part of the sponge inner liner 5 above the multi-functional inner plate 4. The feeding tee 43 is inserted into the bottom of the upper conduit 6. Then, bromochlorohydantoin granules are injected into the space between the sponge inner liner 5 and the multi-functional inner plate 4 through the conduit 6 and the feeding tee 43 to complete the feeding.

[0036] Centrifugal dehydration and drying: Start the equipment, drive motor 9 drives drive wheel 10 to rotate, drive wheel 10 drives centrifuge cylinder 2 to rotate through driven wheel 21. At this time, the vertical surface of transmission block 24 is in close contact with the vertical surface of triangular transmission port 41. Centrifuge cylinder 2 drives multifunctional inner disc 4 to rotate synchronously through transmission block 24. Centrifuge cylinder 2, multifunctional inner disc 4 and sponge inner liner 5 rotate synchronously. Bromochlorohydantoin particles are pressed on sponge inner liner 5 under the action of centrifugal force. Sponge inner liner 5 provides buffer force to bromochlorohydantoin particles, and at the same time can absorb moisture to prevent bromochlorohydantoin particles from breaking.

[0037] Alternating drying of the sponge inner liner 5: At this time, the sponge inner liner 5 is in a flattened state. As the outer shaping part 51 passes through the gap between the upper pressure ring 22 and the multi-functional inner disc 4, the bottom end of the sponge inner liner 5 is located between the centrifuge cylinder 2 and the lower conical disc, and is in a squeezed state. Then it just passes through the gap between the lower pressure ring 22 and the lower conical disc, ensuring that the bromochlorohydantoin particles do not detach. The sponge inner liner 5 located at the triangular transmission port 41 is located between the triangular transmission port 41 and the transmission block 24. After dehydration and drying for a period of time, the upper and lower sets of guide tubes 6 are controlled to rise synchronously. The upper guide tube 6 relaxes the sponge inner liner 5, and the lower guide tube 6 causes the bottom end of the sponge inner liner 5 to fold towards the middle. Since the vertical surface of the transmission block 24 is in close contact with the vertical surface of the triangular transmission port 41 during centrifugal dehydration, the setting of the ball bearing 26 ensures that the transmission surface will not affect the folding of the bottom end of the sponge inner liner 5. At this time, the sponge inner liner 5, which was originally located above the multi-functional inner disc 4, descends into the centrifugal cavity. The part of the centrifugal water absorption passes between the centrifuge cylinder 2 and the lower conical disc and is... The cleaning process initially removes absorbed moisture and prevents bromochlorohydantoin particles from being carried out. Hot air is then introduced through the upper conduit 6, entering the multi-functional inner disc 4 and blowing downwards onto the retracted sponge inner liner 5 for secondary drying. After a period of operation, the two sets of conduits 6 are controlled to descend synchronously again using the same method, further improving the drying of the sponge inner liner 5. It should be noted that the radius of the upper conical disc is smaller than that of the lower conical disc, resulting in a larger gap between the upper conical disc and the centrifuge cylinder 2. The sponge inner liner 5 is not scraped when passing through this gap, but is scraped when entering the space between the upper pressure ring 22 and the upper conical disc. The scraped water does not flow back downwards but is guided by the multi-functional inner disc 4 to the bottom of the dehydration tank 1 and finally discharged through the discharge valve 14. The overall dehydration and drying efficiency is high, preventing secondary pollution. The dried sponge inner liner 5 has a certain degree of stability and can indirectly perform thermal drying of the particles, making the drying process more stable. During the dehydration and drying process, the hot air used for drying is discharged through the exhaust pipe 13 for centralized treatment.

[0038] Automatic rapid discharge: Since the discharge valve 14 performs a drainage operation during the dehydration and drying process, the residual moisture in the sponge inner liner 5 during centrifugal dehydration is trace. Therefore, a small amount of water may adhere to the bottom of the centrifuge drum 2 and the bottom of the dehydration tank 1. Therefore, it is necessary to first introduce hot air into the dehydration tank 1 through the upper conduit 6 for a period of time to evaporate the moisture. The trace amount of moisture evaporates quickly, generally requiring only 1 minute of air introduction. At this time, the output end of the drive motor 9 is locked with a locking device, preventing the centrifuge drum 2 from rotating. At this point, the multi-functional inner disc 4 is controlled to rotate relative to the centrifuge drum 2, and the rotation direction is the same as the working direction of the centrifuge drum 2. Therefore, the multi-functional inner disc 4 pushes the inclined surface of the transmission block 24 through the triangular transmission port 41. When the drive block 24 slides into the transmission box 23 and is misaligned with the triangular transmission port 41, the triangular transmission port 41 is fully open, and the particles are discharged from the triangular transmission port 41. Since a conical disc is set below the multifunctional inner disc 4, the particles will slide obliquely to the position of the triangular transmission port 41, and the particles can be completely discharged. When the drive block 24 is aligned with the triangular transmission port 41 again, under the action of the top spring 25, the drive block 24 strikes the triangular transmission port 41, causing the centrifuge cylinder 2, the multifunctional inner disc 4 and the sponge inner liner 5 to vibrate, which can shake off the particles remaining in the sponge inner liner 5, ensuring complete discharge. The particles fall into the bottom of the dehydration tank 1 through the centrifuge cylinder 2, and then are discharged through the discharge valve 14.

[0039] In embodiment two, based on the above embodiment, a spiral guide groove 42 is provided inside the intermediate tube, and an outer spiral protrusion 61 is provided on the outside of the guide tube 6. The outer spiral protrusion 61 is threaded into the spiral guide groove 42, and the thickness of the outer spiral protrusion 61 is less than the depth of the spiral guide groove 42.

[0040] With this embodiment, when the conduit 6 is inserted into the middle tube, it rotates under the guidance of the outer spiral protrusion 61 and the spiral guide groove 42. It should be noted that the pitch of the spiral guide groove 42 is set to 5-10cm. The larger pitch can generate rotation drive, and the conduit 6 will drive the sponge inner liner 5 to twist, which can just drain the water absorbed inside. Moreover, the sponge inner liner 5 can be switched alternately in a small space.

[0041] Since the thickness of the outer spiral protrusion 61 is less than the depth of the spiral guide groove 42, when the outer spiral protrusion 61 is threaded into the spiral guide groove 42, there is an air passage cavity between the outer spiral protrusion 61 and the spiral guide groove 42. Hot air is spirally discharged through this cavity so that it can more evenly dry the sponge liner 5 with hot air.

[0042] With the setup of this embodiment, there is no need to provide additional rotation drive for the multifunctional inner disc 4. During the discharge process, the guide tube 6 is locked to restrict its rotation. Then, when the guide tube 6 is controlled to descend, the guide tube 6 drives the multifunctional inner disc 4 to rotate, and the rotation direction is the same as the working direction of the centrifuge cylinder 2. When it rises, the guide tube 6 is unlocked, and the guide tube 6 rotates relative to the multifunctional inner disc 4. Therefore, as the guide tube 6 moves up and down, the multifunctional inner disc 4 rotates in one direction to discharge the material.

[0043] Example 3, based on the above examples, further includes two sets of lifting cylinders 3 fixedly installed on the outside of the dehydration tank 1. Lifting rods 31 are fixedly installed on the telescopic ends of the lifting cylinders 3. Lifting pipes 7 are rotatably installed inside the lifting rods 31. The lifting pipes 7 are fixedly connected to the corresponding conduits 6. Hot air pipes 8 are fixedly installed on the ends of the lifting pipes 7 away from the conduits 6. Feeding branch pipes are provided on the outside of the upper hot air pipes 8. Clamping cylinders 32 are fixedly installed on the top of the upper lifting rods 31. The telescopic ends of the clamping cylinders 32 can clamp and fix the lifting pipes 7 in the lifting rods 31.

[0044] The lifting rod 31 is raised and lowered by the lifting cylinder 3, and the lifting rod 31 drives the guide tube 6 to rise and fall through the lifting pipe 7, which is simple to control.

[0045] During the discharge process, when the control guide tube 6 descends, the clamping cylinder 32 clamps the lifting tube 7 onto the lifting rod 31. The lifting tube 7 restricts the rotation of the guide tube 6. The guide tube 6 drives the multi-functional inner disc 4 to rotate, and the rotation direction is the same as the working direction of the centrifuge cylinder 2. When it rises, the clamping cylinder 32 releases the lifting tube 7, the guide tube 6 is unlocked, and the guide tube 6 rotates relative to the multi-functional inner disc 4. Therefore, as the guide tube 6 moves up and down, the multi-functional inner disc 4 rotates in one direction to discharge the material.

[0046] Example 4, based on the above examples, further includes an outwardly inclined top of the lower inner partition 11, which facilitates the discharge of water that has been centrifuged during centrifugal dehydration and drying.

[0047] Furthermore, the bottom of the centrifuge cylinder 2 is cone-shaped, which guides the particles during discharge, resulting in good discharge efficiency.

[0048] Example 5, based on the above examples, further includes an outer shaping component 51 composed of multiple sets of pull ropes arranged in a ring on the outside of the sponge inner liner 5. The pull ropes ensure stable transmission while minimizing the overall buffering impact on the sponge inner liner 5 and preventing the sponge inner liner 5 from being pulled apart.

[0049] Example 6, based on the above examples, further includes an outer shaping component 51 made of an outer wrapping net. The setting in this example has a certain impact on the dehydration efficiency, but the impact is small, and the anti-breakage effect is better.

[0050] Example 7: A dehydration and drying method for the production of bromochlorohydantoin, comprising the following steps:

[0051] S1. Feeding: The bromochlorohydantoin chemical synthesis particles are injected into the equipment through the feeding branch pipe and compressed air flow, and enter the centrifuge cylinder 2 through the conduit 6 and the feeding tee pipe 43.

[0052] S2, Dehydration and Drying: Start the equipment. Centrifuge cylinder 2 centrifuges and dehydrates the bromochlorohydantoin chemically synthesized particles. The sponge inner liner 5 provides protection and water absorption, improving the efficiency of centrifugal dehydration and drying. During the centrifugal dehydration process, the upper and lower guide tubes 6 alternately rise and fall to replace the position of the sponge inner liner 5 and remove water from the sponge, thus completing high-speed and high-quality dehydration and drying.

[0053] S3. Discharge: Turn off the equipment, stop the centrifuge drum 2 from rotating, then control the multi-functional inner disc 4 to rotate relative to the centrifuge drum 2. When the transmission block 24 disengages from the triangular transmission port 41, the dehydrated and dried bromochlorohydantoin chemical synthesis particles are discharged through the triangular transmission port 41. Then open the discharge valve 14 to discharge the material.

[0054] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dehydration and drying apparatus for the production of bromochlorohydantoin, comprising a dehydration tank (1), characterized in that, The centrifuge cylinder (2) is rotatably mounted inside the dehydration tank (1). Two sets of pressure rings (22) are arranged inside the centrifuge cylinder (2). A multifunctional inner disc (4) is clamped between the two sets of pressure rings (22). The multifunctional inner disc (4) consists of two sets of conical discs and a central tube. The two sets of conical discs are symmetrically distributed about the central tube, with the radius of the upper conical disc being smaller than that of the lower conical disc. A sponge inner liner (5) is arranged between the multifunctional inner disc (4) and the centrifuge cylinder (2). An outer shaping part (51) is provided on the outer surface of the sponge inner liner (5). The lower conical disc and... The sponge liner (5) between the centrifuge cylinders (2) is tightly squeezed. Multiple sets of triangular transmission ports (41) are opened in a ring on the outer side of the lower cone. Multiple sets of transmission boxes (23) are arranged in a ring on the outer side of the centrifuge cylinder (2). A transmission block (24) is slidably connected inside the transmission box (23). A top spring (25) is provided between the transmission block (24) and the transmission box (23). The transmission block (24) is inserted into the triangular transmission port (41). The insertion end of the transmission block (24) is set in a right triangle. A ball bearing (26) is rotatably installed on the outer side of the straight side. Both ends of the intermediate tube are provided with lifting guide tubes (6), and the middle of the intermediate tube is provided with a feeding tee tube (43). The feeding tee tube (43) can be inserted into the guide tube (6). The two ends of the outer shaping part (51) pass through the corresponding multi-functional inner plate (4) and the pressure ring (22) respectively, and are fixedly installed on the two sets of guide tubes (6). The interior of the intermediate tube is provided with a spiral guide groove (42), and the outer side of the guide tube (6) is provided with an outer spiral protrusion (61). The outer spiral protrusion (61) is threaded into the spiral guide groove (42). The thickness of the outer spiral protrusion (61) is less than the depth of the spiral guide groove (42). Two sets of lifting cylinders (3) are fixedly installed on the outer side of the dehydration tank (1). Lifting rods (31) are fixedly installed on the telescopic ends of the lifting cylinders (3). Lifting pipes (7) are rotatably installed inside the lifting rods (31). The lifting pipes (7) are fixedly connected to the corresponding guide tubes (6). Hot air pipes (8) are fixedly installed on the end of the lifting pipes (7) away from the guide tubes (6). Feeding branch pipes are provided on the outer side of the upper hot air pipes (8). A clamping cylinder (32) is fixedly installed on the top of the upper lifting rod (31). The telescopic end of the clamping cylinder (32) can clamp and fix the lifting pipe (7) in the lifting rod (31).

2. The dehydration and drying apparatus for the production of bromochlorohydantoin according to claim 1, characterized in that, The inner wall of the dehydration tank (1) is provided with two sets of inner partitions (11). The centrifuge cylinder (2) is rotatably installed between the two sets of inner partitions (11). The top and bottom of the centrifuge cylinder (2) are provided with exhaust pipes (13). The outer side of the dehydration tank (1) is provided with a drain pipe (12). The drain pipe (12) is located directly above the lower inner partition (11). The bottom of the dehydration tank (1) is provided with a discharge valve (14).

3. The dehydration and drying apparatus for the production of bromochlorohydantoin according to claim 2, characterized in that, A drive motor (9) is fixedly installed below the dehydration tank (1), and a drive wheel (10) is fixedly installed at the output end of the drive motor (9). The drive wheel (10) is located in the dehydration tank (1). A driven wheel (21) is fixedly installed at the bottom of the centrifuge cylinder (2). The drive wheel (10) meshes with the driven wheel (21). A locking device is provided at the output end of the drive motor (9).

4. The dehydration and drying apparatus for the production of bromochlorohydantoin according to claim 3, characterized in that, The top of the inner partition (11) described below is inclined outward.

5. The dehydration and drying apparatus for the production of bromochlorohydantoin according to claim 4, characterized in that, The bottom of the centrifuge tube (2) is conical.

6. The dehydration and drying apparatus for the production of bromochlorohydantoin according to claim 1, characterized in that, The outer shaping component (51) consists of multiple sets of pull ropes arranged in a ring on the outside of the sponge inner liner (5).

7. The dehydration and drying apparatus for the production of bromochlorohydantoin according to claim 1, characterized in that, The outer shaping component (51) is made of outer wrapping mesh.

8. A dehydration and drying method for the production of bromochlorohydantoin, comprising the dehydration and drying apparatus for the production of bromochlorohydantoin as described in any one of claims 5-7, characterized in that, Includes the following steps: S1, Feeding: The bromochlorohydantoin chemical synthesis particles are injected into the equipment through the feeding branch pipe and compressed air flow, and enter the centrifuge cylinder (2) through the conduit (6) and the feeding tee pipe (43); S2, Dehydration and Drying: Start the equipment, and centrifuge (2) centrifuges and dehydrates the bromochlorohydantoin chemically synthesized particles. The sponge inner liner (5) plays a protective and water-absorbing role, improving the centrifugal dehydration and drying efficiency. During the centrifugal dehydration process, after a period of dehydration and drying, control the upper and lower sets of guide tubes (6) to rise synchronously. After running for a period of time, control the upper and lower sets of guide tubes (6) to fall synchronously again. By alternating the rise and fall of the upper and lower guide tubes (6), the position of the sponge inner liner (5) is replaced and the sponge is dehydrated, thus completing the high-speed and high-quality dehydration and drying. S3. Discharge: Turn off the equipment, stop the centrifuge drum (2) from rotating, then control the multi-functional inner disc (4) to rotate relative to the centrifuge drum (2). When the transmission block (24) disengages from the triangular transmission port (41), the dehydrated and dried bromochlorohydantoin chemical synthesis particles are discharged through the triangular transmission port (41), and then the discharge valve (14) is opened to discharge the material.

Citation Information

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