Centrifugal dewatering device for flunixin meglumine production

Abstract

The utility model provides a centrifugal dewatering device for flunixin meglumine production. The centrifugal dewatering device comprises an outer box body, a centrifugal barrel and a scraping unit. The centrifugal barrel is arranged in the outer box body, a plurality of water outlet holes are formed in the centrifugal barrel, filter cloth is arranged on the inner wall of the centrifugal barrel, a water outlet is formed in the bottom of the outer box body, a feeding port is formed in the top of the outer box body, a first motor is further arranged on the outer side of the bottom of the outer box body, and the output end of the first motor is connected with a first rotating shaft; the first rotating shaft penetrates through the bottom of the outer box to be connected with the bottom of the centrifugal barrel. The scraping unit comprises a second motor, a lead screw, a lead screw nut, a connecting rod and a scraping plate, the second motor is arranged on the outer side of the upper portion of the outer box body, one end of the lead screw is connected with the output end of the second motor, the lead screw is sleeved with the lead screw nut, and the bottom of the lead screw is sequentially and fixedly connected with the connecting rod and the scraping plate from top to bottom. According to the application, the flunixin meglumine crystal can be quickly separated from the solution, and the dehydration refining efficiency of the flunixin meglumine crystal is also improved.

Description

Technical Field

[0001] The present application relates to the technical field of centrifugal devices, and in particular to a centrifugal dehydration device for producing flunixin meglumine. Background Art

[0002] Flunixin meglumine is a new type of non-steroidal antipyretic analgesic for animals. It is a derivative of nicotinic acid and a cyclooxygenase inhibitor. In veterinary clinics, the drug is used to relieve inflammation and pain caused by muscle abnormalities in horses, relieve visceral colic in horses, and treat diarrhea, tremors, colitis, etc. in foals; it is used to treat respiratory diseases and mastitis caused by endotoxin in cattle; it is used to treat arthritis, fever, diarrhea, tremors and eye infections in dogs; it is used to treat diarrhea in pigs, etc., and can also be used as an auxiliary treatment for mastitis, metritis and agalactia syndrome in sows. The preparation method of flunixin meglumine is mainly divided into two steps. The first step is the synthesis of flunixin, and the second step is the salt formation of flunixin and meglumine to obtain flunixin meglumine.

[0003] In the production process of flunixin meglumine, it is necessary to purify flunixin meglumine through filtration, concentration, crystallization and centrifugation processes. After crystallization, the crystals and the solution need to be separated by a centrifugal dehydration device to achieve the purification of flunixin meglumine.

[0004] However, in the centrifugal dehydration device used in the prior art, as the centrifugal dehydration device is running, the dehydrated flunixin meglumine is easily attached to the inner wall of the centrifugal bucket under the action of centrifugal force, resulting in blockage of the aperture of the centrifugal bucket, thereby reducing the subsequent dehydration efficiency. Utility Model Content

[0005] The present application provides a centrifugal dehydration device for the production of flunixin meglumine, which is used to solve the above-mentioned problems mentioned in the background technology.

[0006] The present application provides a centrifugal dehydration device for the production of flunixin meglumine, comprising: an outer box body, a centrifugal barrel and a scraping unit.

[0007] The centrifugal barrel is arranged inside the outer box body, a plurality of water outlet holes are opened on the centrifugal barrel, a filter cloth is arranged on the inner wall of the centrifugal barrel, a drainage outlet is opened at the bottom of the outer box body, a feed port is arranged at the top of the outer box body, a first motor is also arranged on the outer side of the bottom of the outer box body, an output end of the first motor is connected to a first rotating shaft, and the first rotating shaft passes through the bottom of the outer box body and is connected to the bottom of the centrifugal barrel.

[0008] The scraper unit includes a second motor, a screw, a screw nut, a connecting rod and a scraper plate. The second motor is arranged on the outside of the upper part of the outer box body. One end of the screw is connected to the output end of the second motor. The screw nut is sleeved on the screw. The bottom of the screw is fixedly connected with the connecting rod and the scraper plate in sequence from top to bottom.

[0009] Optionally, a pressure sensing structure is provided on the scraper unit, and the pressure sensing structure includes a pressure sensor, a connecting spring, a connecting plate and an alarm.

[0010] The pressure sensor is located above the scraper plate and connected to the connecting rod. The two ends of the connecting spring are respectively connected to the pressure sensor and the connecting plate. The alarm is arranged on the upper part of the outer wall of the outer box body and is wirelessly connected to the pressure sensor.

[0011] Optionally, the connection direction of the pressure sensing structure is parallel to the length direction of the screw rod and the plate surface of the scraper plate.

[0012] Optionally, the scraper plate includes a brush portion and a scraper portion close to two sides of the centrifugal barrel.

[0013] Along the rotation direction of the centrifugal barrel, the scraping part is located at the front side of the brush part.

[0014] Optionally, the end of the brush portion is 1-3 cm longer than the end of the scraper portion.

[0015] Optionally, a reinforcement block is fixedly disposed at the bottom of the centrifugal bucket, and the first rotating shaft is fixedly connected to the center of the reinforcement block.

[0016] Optionally, the centrifugal dehydration device is further provided with a controller, and the controller is respectively connected to the first motor, the second motor and the pressure sensor.

[0017] The centrifugal dehydration device for flunixin meglumine production provided in the present application realizes efficient separation of flunixin meglumine crystals and has the following beneficial effects compared with the prior art:

[0018] (1) The first motor provides power to drive the first rotating shaft to rotate, and then drives the centrifugal barrel to rotate. During the rotation of the centrifugal barrel, centrifugal force is generated, and the flunixin meglumine crystals are retained in the centrifugal barrel, and the solution is thrown out of the centrifugal barrel, so as to achieve the purpose of refining flunixin meglumine. And by setting a scraping unit, the flunixin meglumine crystals on the filter cloth are scraped off to ensure that the centrifugal barrel filters the solution. The scraping unit includes a second motor, a screw, a screw nut, a connecting rod and a scraping plate. After the first motor runs for a first preset time, the second motor is turned on to rotate forward, and the screw nut drives the scraping plate to move linearly. When one side of the scraping plate contacts the flunixin meglumine crystals attached to the inner wall of the centrifugal barrel, the second motor is turned off, and the scraping plate scrapes the flunixin meglumine crystals. After the first motor runs for a second preset time, the second motor is turned on to reverse, and the screw rotates in the opposite direction, so that the screw nut drives the scraping plate to move in a direction away from the inner wall of the centrifugal barrel, and the scraping of the inner wall of the centrifugal barrel is stopped. Such multiple cycles not only help the filter cloth on the inner wall of the centrifugal barrel to always keep the solution filtered out smoothly, which is beneficial to the rapid separation of flunixin meglumine crystals from the solution, but also enable the efficient purification of flunixin meglumine crystals.

[0019] (2) A pressure sensing structure is provided on the scraper unit, and the pressure sensing structure includes a pressure sensor, a connecting spring, a connecting plate and an alarm. The pressure value detected by the pressure sensor is used to determine whether the scraper plate is in contact with the flunixin meglumine crystals attached to the inner wall of the centrifuge barrel, and the flunixin meglumine crystals are scraped off, so that the operator can determine whether to turn off the second motor, making the operation more convenient.

[0020] (3) By setting a controller, the automation level of the centrifugal dehydration device is improved, making the separation of flunixin meglumine more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the structure of a centrifugal dehydration device for producing flunixin meglumine provided in one embodiment of the present application;

[0023] Figure 2 A schematic structural diagram of a centrifugal dehydration device for producing flunixin meglumine provided in another embodiment of the present application;

[0024] Figure 3 A schematic structural diagram of a centrifugal dehydration device for producing flunixin meglumine provided in yet another embodiment of the present application;

[0025] Figure 4 A schematic diagram of the structure of a scraper unit provided in one embodiment of the present application;

[0026] Figure 5 A connection diagram of a controller provided in one embodiment of the present application;

[0027] Description of reference numerals:

[0028] 1: outer box body, 2: centrifugal barrel, 6: controller, 110: drain outlet, 120: feed inlet, 210: filter cloth, 220: reinforcement block, 310: first motor, 320: first rotating shaft, 410: second motor, 420: screw rod, 430: screw rod nut, 440: connecting rod, 450: scraper plate, 451: brush part, 452: scraper part, 510: pressure sensor, 520: connecting spring, 530: connecting plate, 540: alarm. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0030] like Figure 1 and Figure 2 As shown, the present application provides a centrifugal dehydration device for the production of flunixin meglumine, comprising: an outer box body 1, a centrifugal barrel 2 and a scraper unit.

[0031] The centrifugal bucket 2 is arranged inside the outer box body 1, and a plurality of water outlet holes are opened on the centrifugal bucket 2. A filter cloth 210 is arranged on the inner wall of the centrifugal bucket 2. A drain port 110 is opened at the bottom of the outer box body 1, and a feed port 120 is arranged at the top of the outer box body 1. A first motor 310 is also arranged on the outer side of the bottom of the outer box body 1. The output end of the first motor 310 is connected to a first rotating shaft 320, and the first rotating shaft 320 passes through the bottom of the outer box body 1 and is connected to the bottom of the centrifugal bucket 2.

[0032] The scraper unit includes a second motor 410, a screw 420, a screw nut 430, a connecting rod 440 and a scraper plate 450. The second motor 410 is arranged on the outer side of the upper part of the outer box body 1, one end of the screw 420 is connected to the output end of the second motor 410, the screw nut 430 is sleeved on the screw 420, and the bottom of the screw 420 is fixedly connected with the connecting rod 440 and the scraper plate 450 in sequence from top to bottom.

[0033] Specifically, the principle of the centrifugal dehydration device is to accelerate the liquid phase in the solid-liquid mixture out of the centrifugal bucket through the centrifugal force generated by the high-speed operation of the centrifugal bucket, and leave the solid phase in the centrifugal bucket, so as to achieve the effect of separating the solid and the liquid. In the process of preparing flunixin meglumine in the present application, flunixin meglumine is crystallized to obtain a mixture of flunixin meglumine crystals and a solution, and the flunixin meglumine crystals are separated from the solution by a centrifugal dehydration device, so as to achieve the purpose of refining flunixin meglumine.

[0034] The centrifugal bucket 2 is used to place the solid-liquid mixture of flunixin meglumine, and at the same time, power is provided to the centrifugal bucket 2 to rotate, so that the solution is thrown out of the centrifugal bucket 2, and flunixin meglumine crystals are obtained inside the centrifugal bucket 2. The filter cloth 210 is used to filter the flunixin meglumine crystals, and the solution is thrown out from the water outlet of the centrifugal bucket 2 through the filter cloth 210, and the flunixin meglumine crystals remain in the filter cloth 210. The outer box 1 is used to place the centrifugal bucket 2, and a cavity is formed between the inner side of the outer box 1 and the outer side of the centrifugal bucket 2 to accommodate the thrown solution and discharge it through the drain port 110 at the bottom of the outer box 1. The feed port 120 is used to input the mixture of flunixin meglumine crystals and the solution into the centrifugal bucket 2. During the centrifugal dehydration process, the first motor 310 provides power and drives the first rotating shaft 320 to rotate, and the first rotating shaft 320 drives the centrifugal bucket 2 to rotate. During the rotation of the centrifugal bucket 2, centrifugal force is generated. The centrifugal forces of substances with different densities are different. Flunixin meglumine crystals are retained in the centrifugal bucket 2, and the solution is thrown out of the centrifugal bucket 2 and discharged from the drain port 110, thereby achieving the purpose of refining flunixin meglumine.

[0035] During the centrifugal dehydration process, flunixin meglumine crystals are continuously accumulated on the inner wall of the centrifugal barrel 2. After long-term operation, flunixin meglumine crystals block the filter cloth 210 in the centrifugal barrel 2. The scraper unit is used to scrape the flunixin meglumine crystals on the filter cloth 210 to ensure that the centrifugal barrel 2 filters the solution. The scraper unit includes a second motor 410, a screw 420, a screw nut 430, a connecting rod 440 and a scraper plate 450. The second motor 410 provides power to drive the screw 420 to rotate. The screw nut 430 is set on the outside of the screw 420 through a ball sleeve. The rotation of the screw 420 drives the screw nut 430 to make a linear motion on the screw 420, and drives the scraper plate 450 to move through the connecting rod 440. The second motor 410 is a forward and reverse motor, which is used to drive the screw 420 to rotate forward and reverse, and then control the screw nut 430 to reciprocate on the screw 420.

[0036] After the first motor 310 runs for a first preset time, the second motor 410 is turned on to rotate forward, so that the screw 420 rotates, so that the screw nut 430 drives the scraper plate 450 to move in a straight line, and when one side of the scraper plate 450 contacts the flunixin meglumine crystals attached to the inner wall of the centrifugal bucket 2, the second motor 410 is turned off, and the centrifugal bucket 2 continues to rotate, so that the scraper plate 450 scrapes off the flunixin meglumine crystals, and after the first motor 310 runs for a second preset time, the second motor 410 is turned on to rotate reversely, so that the screw 420 rotates in the opposite direction, so that the screw nut 430 drives the scraper plate 450 to run in a direction away from the inner wall of the centrifugal bucket 2, and stops scraping the inner wall of the centrifugal bucket 2. This multiple cycles not only help the filter cloth 210 on the inner wall of the centrifugal bucket 2 to always keep the solution filtered out unobstructed, which is conducive to the rapid separation of the flunixin meglumine crystals from the solution, but also enables the efficient purification of the flunixin meglumine crystals.

[0037] Among them, the distance between the bottom end of the scraper plate 450 and the bottom of the centrifugal bucket 2 is 1 / 2-2 / 3 of the height of the centrifugal bucket 2. In this way, since flunixin meglumine crystals are constantly gathered at the bottom of the centrifugal bucket 2 during the centrifugation process, when the crystal content is relatively high, the bottom end of the scraper plate 450 is kept at a distance from the bottom of the centrifugal bucket 2 to avoid the scraper plate 450 stirring the flunixin meglumine crystals gathered at the bottom, increasing the rotation resistance of the centrifugal bucket 2, resulting in increased power consumption, thus avoiding the increase in resistance of the first motor 310, and also achieving the scraping of the inner wall of the centrifugal bucket 2. When the crystal content is relatively low, there are relatively few flunixin meglumine crystals attached to the side wall of the centrifugal bucket 2, and the filter cloth 210 is sufficient to separate flunixin meglumine, so there is no need to scrape.

[0038] The present application realizes efficient separation of flunixin meglumine crystals through the above scheme. The first motor provides power to drive the first rotating shaft to rotate, and then drives the centrifugal barrel to rotate. Centrifugal force is generated during the rotation of the centrifugal barrel, and the flunixin meglumine crystals are retained in the centrifugal barrel, and the solution is thrown out of the centrifugal barrel, so as to achieve the purpose of refining flunixin meglumine. And by setting a scraping unit, the flunixin meglumine crystals on the filter cloth are scraped off to ensure that the centrifugal barrel filters the solution. The scraper unit includes a second motor, a screw, a screw nut, a connecting rod and a scraper plate. After the first motor runs for a first preset time, the second motor is turned on to rotate forward, and the screw nut drives the scraper plate to move in a straight line. When one side of the scraper plate contacts the flunixin meglumine crystals attached to the inner wall of the centrifuge barrel, the second motor is turned off, and the scraper plate scrapes the flunixin meglumine crystals. After the first motor runs for a second preset time, the second motor is turned on to reverse, and the screw rotates in the opposite direction, so that the screw nut drives the scraper plate to run away from the inner wall of the centrifuge barrel, and stops scraping the inner wall of the centrifuge barrel. This is repeated for multiple cycles, which not only helps the filter cloth on the inner wall of the centrifuge barrel to always keep the solution filtered out smoothly, is conducive to the rapid separation of the flunixin meglumine crystals from the solution, but also enables the efficient purification of the flunixin meglumine crystals.

[0039] like Figure 3 As shown, optionally, a pressure sensing structure is provided on the scraper unit, and the pressure sensing structure includes a pressure sensor 510 , a connecting spring 520 , a connecting plate 530 and an alarm 540 .

[0040] The pressure sensor 510 is located above the scraper plate 450 and is connected to the connecting rod 440. The two ends of the connecting spring 520 are respectively connected to the pressure sensor 510 and the connecting plate 530. The alarm 540 is arranged on the upper part of the outer wall of the outer box body 1 and is wirelessly connected to the pressure sensor 510. The length of the pressure sensing structure is longer than 1 / 2 of the width of the scraper plate 450.

[0041] Specifically, the pressure sensing structure is used to determine whether the scraper plate 450 is in contact with the flunixin meglumine crystals attached to the inner wall of the centrifugal barrel 2 when the scraper unit is used for scraping, so that the operator can determine whether to turn off the second motor 410. When scraping is required, the second motor 410 is turned on to rotate forward, so that the screw rod 420 rotates, so that the screw nut 430 drives the scraper plate 450 to move linearly, and the pressure sensing structure also moves with the screw rod 420. Since the length of the pressure sensing structure is longer than 1 / 2 of the width of the scraper plate 450, the connecting plate 530 contacts the inner wall of the centrifugal barrel 2 earlier than the side wall of the scraper plate 450. When the pressure detected by the set pressure sensor 510 is equal to the preset pressure, the alarm 540 sounds an alarm. At this time, the second motor 410 is turned off, so that the scraper plate 450 scrapes the flunixin meglumine crystals attached to the inner wall of the filter cloth 210. This makes the operation more convenient.

[0042] The connecting spring 520 is used to buffer the connecting plate 530 and transmit the pressure from the connecting plate 530 to the pressure sensor 510. At the same time, when the scraper plate 450 is scraping, the spring itself is elastically deformed, so that after the second motor 410 is turned off, the attached flunixin meglumine crystals are gradually scraped and thinned, and the attached remaining flunixin meglumine crystals have a continuous force, which helps to improve the scraping of the attached flunixin meglumine crystals, thereby also improving the separation efficiency of flunixin meglumine. Optionally, the connection direction of the pressure sensing structure is parallel to the length direction of the screw rod 420 and the plate surface of the scraper plate 450. At the same time, by setting a preset pressure value, the pressure of the scraper plate 450 on the filter cloth 210 is controlled, so that the centrifugal force on the filter cloth 210 is greater than the tangential force given by the scraper plate 450, so as to avoid the filter cloth 210 being scraped up by the scraper plate 450 during the scraping process.

[0043] Specifically, when the flunixin meglumine crystals attached to the inner wall of the filter cloth 210 are scraped off, the pressure sensing structure, the screw rod 420 and the plate surface of the scraper plate 450 are all in the same direction, so that the pressure value detected by the pressure sensor 510 is more accurate, and the scraping efficiency of the flunixin meglumine crystals attached to the inner wall of the filter cloth 210 is improved, thereby improving the separation efficiency of the flunixin meglumine crystals and facilitating the operation.

[0044] like Figure 4 As shown, optionally, the scraper plate 450 includes a brush portion 451 and a scraper portion 452 close to both sides of the centrifugal bucket 2. Along the rotation direction of the centrifugal bucket 2, the scraper portion 452 is located at the front side of the brush portion 451.

[0045] Specifically, during the rotation of the centrifugal barrel 2, the flunixin meglumine crystals attached to the inner wall of the filter cloth 210 are scraped off, and along the rotation direction of the centrifugal barrel 2, the scraping portion 452 first contacts the flunixin meglumine crystals to scrape off the flunixin meglumine crystals, and then the flunixin meglumine crystals are brushed off again by the brush portion 451 on the basis of the scraping by the scraping portion 452, thereby further improving the dredging of the filter cloth 210 and the centrifugal barrel 2, so that the filter cloth 210 resumes filtering the solution, thereby improving the centrifugal separation efficiency of the flunixin meglumine crystals.

[0046] Optionally, the end of the brush portion 451 is longer than the end of the scraper portion 452 by 1-3 cm.

[0047] Specifically, the brush portion 451 is longer than the scraper portion 452 , which can further improve the brushing of attached flunixin meglumine crystals. If the brush portion 451 is too long or too short, it is not conducive to brushing the crystals.

[0048] like Figure 3 As shown, optionally, a reinforcing block 220 is fixedly disposed at the bottom of the centrifugal bucket 2 , and the first rotating shaft 320 is fixedly connected to the center of the reinforcing block 220 .

[0049] Specifically, the reinforcement block 220 is provided so that the first rotating shaft 320 is connected to the centrifugal barrel 2 through the reinforcement block 220, which not only realizes the rotation of the centrifugal barrel 2, but also makes the installation of the centrifugal barrel 2 more solid. The centrifugal barrel 2 only needs to be fixedly connected to the reinforcement block 220 to ensure the integrity of the centrifugal barrel 2 and improve the stability of the rotation of the centrifugal barrel 2.

[0050] like Figure 5 As shown, optionally, the centrifugal dehydration device is further provided with a controller 6, and the controller 6 is connected to the first motor 310, the second motor 410 and the pressure sensor 510 respectively.

[0051] Specifically, the controller 6 is used to control the opening and closing of the first motor 310 , and at the same time, controls the opening and closing of the second motor 410 according to the pressure signal received from the pressure sensor 510 , and controls the forward and reverse rotation of the second motor 410 .

[0052] The technical solution of the present application is described in detail below with reference to specific embodiments.

[0053] The centrifugal dehydration device for flunixin meglumine production in this embodiment has the following operation flow during specific operation:

[0054] The mixture of flunixin meglumine crystals and the solution is input into the centrifugal bucket 2 through the feed port 120. The controller 6 turns on the first motor 310 to provide power, drives the first rotating shaft 320 to rotate, and the first rotating shaft 320 drives the centrifugal bucket 2 to rotate. During the rotation of the centrifugal bucket 2, centrifugal force is generated, and the flunixin meglumine crystals are retained in the centrifugal bucket 2. The solution passes through the filter cloth 210 and is then thrown out from the water outlet of the centrifugal bucket 2 and discharged from the drain port 110.

[0055] It is set that after the first motor 310 runs for a first preset time, the controller 6 turns on the second motor 410 to rotate forward, so that the screw 420 rotates, so that the screw nut 430 drives the scraper plate 450 to move linearly, and at this time the pressure sensing structure also moves with the screw 420. When the pressure signal from the pressure sensor 510 received by the controller 6 is set to be equal to the preset pressure, the side wall of the scraper plate 450 contacts the flunixin meglumine crystals attached to the inner wall of the centrifugal barrel 2, the controller 6 turns off the second motor 410, and the centrifugal barrel 2 continues to rotate, so that the scraper plate 450 scrapes off the flunixin meglumine crystals attached to the inner wall of the filter cloth 210.

[0056] After the first motor 310 is set to run for a second preset time, the controller 6 turns on the second motor 410 to reverse, so that the screw 420 rotates in the opposite direction, so that the screw nut 430 drives the scraper plate 450 to run away from the inner wall of the centrifugal bucket 2, and stops scraping the inner wall of the centrifugal bucket 2. After the first motor 310 is set to run for a third preset time, the controller 6 turns off the second motor 410. The setting of the third preset time is determined according to the size of the inner diameter of the centrifugal bucket 2 under actual working conditions, so that the scraper plate 450 does not contact the inner wall of the centrifugal bucket 2.

[0057] After the centrifugal dehydration is completed, the controller 6 turns off the first motor 310, and takes out the flunixin meglumine crystals in the dehydrated filter cloth 210 by taking out the filter cloth 210, thereby achieving the dehydration and purification of the flunixin meglumine crystals.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A centrifugal dehydration device for the production of flunixin meglumine, characterized in that: include: An outer box (1), a centrifugal barrel (2) and a scraper unit; The centrifugal bucket (2) is arranged inside the outer box (1), a plurality of water outlet holes are provided on the centrifugal bucket (2), a filter cloth (210) is provided on the inner wall of the centrifugal bucket (2), a drain port (110) is provided at the bottom of the outer box (1), a feed port (120) is provided at the top of the outer box (1), a first motor (310) is further provided on the outer side of the bottom of the outer box (1), an output end of the first motor (310) is connected to a first rotating shaft (320), and the first rotating shaft (320) passes through the bottom of the outer box (1) and is connected to the bottom of the centrifugal bucket (2); The scraper unit comprises a second motor (410), a screw rod (420), a screw nut (430), a connecting rod (440) and a scraper plate (450); the second motor (410) is arranged on the outer side of the upper part of the outer box body (1); one end of the screw rod (420) is connected to the output end of the second motor (410); the screw nut (430) is sleeved on the screw rod (420); and the bottom of the screw rod (420) is fixedly connected with the connecting rod (440) and the scraper plate (450) in sequence from top to bottom.

2. The centrifugal dehydration device for producing flunixin meglumine according to claim 1, characterized in that: The scraper unit is provided with a pressure sensing structure, which comprises a pressure sensor (510), a connecting spring (520), a connecting plate (530) and an alarm (540); The pressure sensor (510) is located above the scraper plate (450) and is connected to the connecting rod (440); the two ends of the connecting spring (520) are respectively connected to the pressure sensor (510) and the connecting plate (530); the alarm (540) is arranged on the upper part of the outer wall of the outer box body (1) and is wirelessly connected to the pressure sensor (510).

3. The centrifugal dehydration device for producing flunixin meglumine according to claim 2, characterized in that: The connection direction of the pressure sensing structure is parallel to the length direction of the screw rod (420) and the plate surface of the scraper plate (450).

4. The centrifugal dehydration device for producing flunixin meglumine according to claim 1, characterized in that: The scraper plate (450) comprises a brush portion (451) and a scraper portion (452) close to two sides of the centrifugal barrel (2); Along the rotation direction of the centrifugal barrel (2), the scraper portion (452) is located in front of the brush portion (451).

5. The centrifugal dehydration device for producing flunixin meglumine according to claim 4, characterized in that: The end of the brush portion (451) is 1-3 cm longer than the end of the scraper portion (452).

6. The centrifugal dehydration device for producing flunixin meglumine according to claim 1, characterized in that: A reinforcing block (220) is fixedly disposed at the bottom of the centrifugal bucket (2), and the first rotating shaft (320) is fixedly connected to the center of the reinforcing block (220).

7. The centrifugal dehydration device for producing flunixin meglumine according to any one of claims 1 to 6, characterized in that: The centrifugal dehydration device is also provided with a controller (6), and the controller (6) is respectively connected to the first motor (310), the second motor (410) and the pressure sensor (510).

Images