CN118988578A

CN118988578A - Centrifugal filter device and centrifugal equipment for pharmacy

Info

Publication number: CN118988578A
Application number: CN202411458338.1A
Authority: CN
Inventors: 余龙; 金永明
Original assignee: Anhui Senji Pharmaceutical Co ltd
Current assignee: Anhui Senji Pharmaceutical Co ltd
Priority date: 2024-10-18
Filing date: 2024-10-18
Publication date: 2024-11-22
Anticipated expiration: 2044-10-18
Also published as: CN118988578B

Abstract

The invention relates to a centrifugal filtering device, comprising a front-placed feeding component and a centrifugal filtering component mounted on a frame, wherein a stirring bucket and a transmission mechanism with a feeding port extending obliquely are mounted at the front of the feeding component, a crushing tooth is horizontally penetrated in the stirring bucket, and a screen is embedded in the bottom thereof, a semi-open conveying pipe with an inner rotating conveying paddle is arranged below the screen, a pipe head sleeve of the conveying pipe is provided with a "B"-shaped transfer bin, and a transfer leaf is suspended therein, the centrifugal filtering component comprises a baseball bat-shaped hollow centrifugal cylinder and a cylindrical collecting bin sleeved at the bottom thereof, a spiral vortex wing is attached to the chamber of the centrifugal cylinder, a centrifugal pump is embedded at the connection between a tangential receiving port extending horizontally at the end thereof and the feeding port, and a hollow vortex cylinder is penetrated and connected to the top wall of the chamber of the centrifugal cylinder, and the vortex cylinder is bent upward and extended to have a waste discharge port connected to the waste cylinder; the separation accuracy and efficiency are improved, and the smooth mass production of high-viscosity materials can be ensured.

Description

Centrifugal filter device and centrifugal equipment for pharmacy

Technical Field

The invention relates to the technical field of centrifugal filtration, in particular to a centrifugal filtration device and centrifugal equipment for pharmacy.

Background

In the preparation process of the crude drug (Active Pharmaceutical Ingredient, API), filtering and separating operations are key links for ensuring the purity and quality of the product. Byproducts and impurities are often produced during the reaction process, which, if not effectively separated, can affect the purity of the final product, even the efficacy and safety. Therefore, the accurate filtration technology is one of the core processes of the production of raw medicines, and particularly the separation and filtration of solid particles are of great importance. The centrifugal filtration technology is a preferred method for solving the problem due to the advantages of high efficiency, easy operation, strong adaptability and the like, and is a separation technology widely used in the industries such as pharmacy, chemical industry and the like at present. The working principle of the centrifugal filtration technology is relatively simple: when the centrifugal cylinder in the equipment rotates at a high speed, a strong centrifugal force is generated, solid particles in the mixture are thrown to the cylinder wall, and the particles are respectively deposited in different areas according to different diameters or densities, so that the separation of the solid particles is realized. The technology can rapidly and efficiently treat a large amount of materials, and particularly can keep a high separation effect when facing materials with similar particle sizes or smaller density differences.

However, conventional centrifugal filtration devices have revealed some obvious drawbacks in practical applications, and conventional centrifugal filtration devices generally adopt a simple centrifugal barrel structure, and do not fully consider differences in material characteristics, particularly when processing materials with different viscosities, particle sizes and different mobility, and cannot be designed in a targeted and optimized manner. Because the stress of the solid particles in the centrifugal barrel is uneven, the strength of the action of centrifugal force can not be effectively regulated and controlled, the solid particles are often easy to accumulate in the centrifugal barrel, the material distribution is uneven, and the integral separation effect is further affected. Especially when facing high viscosity material, the mobility of material is relatively poor, is difficult to evenly distribute in the centrifugal barrel smoothly, leads to the centrifugal filtration efficiency to obviously decline. Along with the improvement of the requirements of the pharmaceutical industry on the product quality and the production efficiency, the existing traditional centrifugal filtering equipment is difficult to meet the market demands. There is a need to develop a new generation of centrifugal filtration equipment which can adapt to mass production, high-precision separation and high stability through technical innovation so as to solve the technical problem of solid-solid particle separation in the production process and meet urgent demands of industry on efficient, low-cost and fine production.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a centrifugal filter device and a centrifugal device for pharmacy, and the specific technical scheme is as follows:

the invention provides a centrifugal filter device, which comprises a front feeding component and a centrifugal filter component erected on a frame, wherein a stirring hopper and a transmission mechanism are erected at the front part of the feeding component, a feeding port is obliquely and prolonged, crushing teeth are transversely penetrated in the stirring hopper, a screen is embedded at the bottom of the stirring hopper, a semi-open conveying pipe of an internal rotation conveying paddle is arranged below the screen, a 'b' -shaped switching bin is sleeved on a pipe head of the conveying pipe, a switching blade is suspended in the conveying bin, a transverse feeding port is bent and prolonged at the top of the switching bin, the crushing teeth, the conveying paddle and the switching blade are synchronously driven by the transmission mechanism, the centrifugal filter component comprises a hollow cylindrical collecting bin sleeved at the bottom of a rod-ball-shaped centrifugal cylinder, the bottom of the collecting bin is in an inverted cone shape, a spiral swirl flow is stuck in a chamber of the centrifugal cylinder, a tangential receiving port transversely prolonged at the end of the centrifugal cylinder is detachably connected with the feeding port, a centrifugal pump is embedded at the connecting position, particles in the switching bin can be driven to enter the centrifugal cylinder in a tangential direction, rotate downwards along the swirl flow, a spiral flow is downwards, and the top wall of the centrifugal cylinder is connected with a hollow swirl flow chamber, and the waste particles are used for collecting impurities in the waste particles.

As a preferable technical scheme of the invention, the crushing teeth are X-shaped composite fork frames which are in double-shaft connection transmission, the screen is a rubber screen, and the crushing teeth are in elastic contact with the screen in a rotating way and are used for stirring and screening particles with consistent sizes and entering a centrifugal filter device;

The oversized material falls into the screen, and the crushing teeth continuously rotate, stir and crush the oversized material so that the oversized material is completely crushed and passes through the screen.

As a preferable technical scheme of the invention, the switching blades of the switching bin are formed by six equally-spaced trapezoid blades in radial direction and are used for rotating and stirring particles to reach the feeding port.

As a preferable technical scheme of the invention, the swirl wings are made of elastic materials, the spiral spacing of the swirl wings can be changed along the spiral direction so as to adapt to particles with different specific gravities, and magnets are attached to the outer peripheral surface of the swirl wings and can move up and down along the inner wall of the centrifugal cylinder so as to adjust the height of the sucked impurities.

As a preferable technical scheme of the invention, the lower peripheral surface of the centrifugal cylinder is annularly provided with the butt flange, and the butt flange is fixed with the aggregate bin through bolts for maintaining and replacing the centrifugal cylinder.

As a preferable technical scheme of the invention, the lowest part of the inverted cone bottom of the collecting bin is provided with a discharge valve for effectively guiding out finished product particles.

As a preferable technical scheme of the invention, the frame is provided with the stabilizing beams and the damping beams which are vertically and symmetrically arranged and used for filtering vibration generated by the centrifugal filter cylinder body.

As a preferable technical scheme of the invention, the waste discharge port of the centrifugal cylinder is embedded with the waste guide pump, so that impurities in the central shaft of centrifugal filtration can be effectively led out, and the efficiency of centrifugal filtration of the impurities is improved.

As a preferable technical scheme of the invention, the feeding port of the feeding component is connected with the receiving port of the centrifugal filtering component through a buckle.

The beneficial effects of the invention are as follows:

The centrifugal filter device provided by the invention is effectively improved against the problems of high cost, low efficiency, easy blockage and the like in the centrifugal filtration in the prior art, and has remarkable beneficial effects. The device includes leading feeding subassembly and erects the centrifugal filtration subassembly on the frame, and feeding subassembly front portion is furnished with the slant and extends stirring fill and the drive mechanism of establishing the feed inlet, is equipped with broken tooth in the stirring fill, can realize the even mixing of material, has effectively avoided the uneven problem of separation that causes because of the material piles up in the traditional device. Meanwhile, the bottom of the stirring hopper is embedded with a screen, a semi-open conveying pipe with an internal rotation conveying paddle is arranged below the screen, and materials are fully mixed and preliminarily screened before entering the centrifugal filtering assembly through synchronous transmission of crushing teeth, the conveying paddles and the switching blades, so that a solid foundation is laid for subsequent efficient filtering.

Compared with the simple centrifugal barrel structure of the traditional centrifugal filter device, the invention adopts more advanced design, and the spiral swirl wings are attached in the centrifugal barrel cavity to guide and optimize the flow path of the materials. The material moves downwards along the spiral wing spiral under the action of centrifugal force, so that the problems of material accumulation and uneven distribution in traditional equipment are avoided, and the separation efficiency is greatly improved. Through the design of spiral whirl wing, the material can evenly distributed in the centrifugal tube to follow the orderly subsidence of spiral orbit, make full use of centrifugal force carries out the particle separation. The improvement effectively solves the problem of low separation efficiency when the traditional device is used for treating materials with high viscosity or similar particle diameters, so that the traditional device can better meet the requirement of high-precision separation in the preparation process of bulk drugs.

In addition, the centrifugal filter device further optimizes the fluidity of the materials through the introduction of the centrifugal pump. The centrifugal pump is arranged between the feeding port and the switching bin, and particle materials can be tangentially flushed into the centrifugal cylinder under the action of the centrifugal pump and rotate along the spiral flow wings at a high speed. Compared with the traditional single action mode depending on gravity and centrifugal force, the device is more excellent in fluidity guiding performance of materials, and the sustainability and high efficiency of the materials in the whole filtering process are ensured. Not only the speed of particle separation is improved, but also the processing requirements of high-viscosity materials and large-batch materials can be better met, thereby greatly reducing the running cost of equipment and improving the production efficiency.

In the aspect of waste treatment, the invention realizes automatic discharge of waste through the design of the hollow vortex cylinder. The hollow vortex tube which is arranged on the top wall of the centrifugal tube chamber in a penetrating way can effectively filter and separate impurities and waste materials, and is discharged through the waste discharge port which is bent upwards and extends. While the conventional centrifugal filter device has the problems of waste retention and unsmooth discharge, which lead to frequent equipment cleaning and maintenance requirements, the invention ensures the timely discharge of waste materials through reasonable waste discharge system design, and avoids the problems of equipment blockage and shutdown. The physical structure design reduces manual operation, reduces equipment maintenance frequency in the production process, and further reduces production cost.

Meanwhile, the synchronous transmission mechanism can realize synchronous movement of the crushing teeth, the conveying paddles and the switching blades, and ensure uniform flow and efficient screening of materials. The traditional centrifugal filtration equipment is generally uneven in transmission, so that uneven material distribution and low in filtration efficiency are caused, and the synchronous transmission design can enable all parts to operate in a coordinated manner, so that the consistency and stability of materials in the whole filtration process are ensured, and the conditions of poor equipment loss and separation effect caused by vibration, noise and the like in the equipment operation process are avoided. Not only improves the stability of the equipment, but also effectively reduces the energy consumption of the equipment, so that the equipment can continuously and efficiently run in a high-strength production environment.

In summary, the invention overcomes a plurality of defects in the prior art by optimizing the structure of the centrifugal filter device, and has remarkable beneficial effects. Firstly, materials are subjected to mixing crushing, preliminary screening and high-efficiency separation of spiral cyclone wings, so that the separation precision and efficiency are improved; secondly, the introduction of the centrifugal pump enhances the fluidity and the processing capacity of the materials, and ensures the smooth production of high-viscosity materials in a large scale; furthermore, the automatic waste discharge system effectively solves the problems of equipment blockage and waste retention, and reduces the downtime and maintenance cost; finally, the synchronous transmission design improves the stability and the energy efficiency ratio of the equipment, so that the equipment has higher economical efficiency and practicability in the production process of high standards such as raw material medicine preparation and the like. Therefore, the device provides an ideal solution for solving the problem of high-cost centrifugal filtration in the preparation process of the bulk drug.

Drawings

FIG. 1 shows a schematic overall structure of the present invention;

FIG. 2 shows a schematic perspective view of a feed assembly of the present invention;

FIG. 3 shows an exploded view of the feed assembly of the present invention;

FIG. 4 is a schematic perspective view showing a centrifugal filter assembly and a frame assembly of the present invention;

FIG. 5 shows a front view of the centrifugal filter assembly of the present invention in combination with a frame;

FIG. 6 is a schematic view showing a sectional structure of the portion A-A in FIG. 5;

FIG. 7 shows a perspective view of a centrifuge bowl according to the present invention;

FIG. 8 is a schematic perspective view of a swirl vane according to the present invention;

The figure shows: 1. a feed assembly; 11. a transmission mechanism; 12. a stirring hopper; 121. a feed inlet; 122. a screen; 13. crushing teeth; 14. a delivery tube; 141. a transport paddle; 15. a switching bin; 151. a transfer leaf; 152. a feeding port; 16. a centrifugal pump; 2. a centrifugal filtration assembly; 21. a centrifugal barrel; 211. a material receiving port; 212. a waste discharge port; 213. a butt flange; 214. swirl wings; 215. a vortex tube; 22. a collecting bin; 221. a discharge valve; 23. a waste cartridge; 231. a waste pump; 3. a frame; 31. a stabilizing beam; 32. and a damping beam.

Detailed Description

The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Example 1

In order to solve the technical problems in the background technology, a centrifugal filter device and pharmaceutical centrifugal equipment are provided as follows:

In combination with fig. 1-7, a centrifugal filter device comprises a front feeding component 1 and a centrifugal filter component 2 erected on a frame 3, wherein a stirring hopper 12 with a feeding hole 121 obliquely extending and a transmission mechanism 11 are erected at the front part of the feeding component 1, crushing teeth 13 transversely penetrate through the stirring hopper 12 and are embedded with a screen 122 at the bottom of the stirring hopper, a semi-open conveying pipe 14 with an internal rotation conveying propeller 141 is arranged below the screen 122, a b-shaped switching bin 15 is sleeved on the pipe head of the conveying pipe 14, switching blades 151 are suspended in the pipe head, a transverse feeding hole 152 is formed in the top bending of the switching bin 15, the crushing teeth 13 are synchronously driven by the conveying propeller 141 and the switching blades 151 as the transmission mechanism 11, the centrifugal filter component 2 comprises a hollow centrifugal cylinder 21 with a rod shape and a cylindrical collecting bin 22 sleeved at the bottom of the hollow centrifugal cylinder, a reverse taper-shaped material collecting bin 22 is internally stuck with a cavity, a tangential material inlet 211 transversely extending and a feeding hole 152 is detachably connected with the feeding hole 152, a hollow rotary vortex drum 21 is arranged at the end of the centrifugal cylinder 21, and the hollow vortex drum 21 is connected with the hollow vortex rotary vortex drum 21 along the top wall 215, and the hollow vortex drum 21 is connected with the hollow vortex drum 21.

Through above-mentioned technical scheme, this device has carried out effectual improvement to the high cost that centrifugal filtration exists among the prior art, inefficiency, easy problem such as jam, has apparent beneficial effect. The device includes leading feeding subassembly 1 and erects centrifugal filter component 2 on frame 3, and feeding subassembly 1 front portion is furnished with the slant and extends to establish stirring fill 12 and the drive mechanism 11 of feed inlet 121, is equipped with broken tooth 13 in the stirring fill 12, can realize the even mixing of material, has effectively avoided the uneven problem of separation that causes because of the material piles up in the traditional device. Meanwhile, the bottom of the stirring hopper 12 is embedded with the screen 122, the semi-open conveying pipe 14 with the internal rotation conveying paddles 141 is arranged below the screen 122, and the materials are fully mixed and primarily screened before entering the centrifugal filter assembly 2 through synchronous transmission of the crushing teeth 13, the conveying paddles 141 and the switching blades 151, so that a solid foundation is laid for subsequent efficient filtration.

Compared with the simple centrifugal barrel 21 structure of the traditional centrifugal filter device, the device adopts a more advanced design, and the spiral swirl wings 214 are attached in the cavity of the centrifugal barrel 21 to guide and optimize the flow path of the materials. The material moves downwards along the spiral wings 214 in a spiral manner under the action of centrifugal force, so that the problems of material accumulation and uneven distribution in the traditional equipment are avoided, and the separation efficiency is greatly improved. By the design of the spiral swirl wings 214, the materials can be uniformly distributed in the centrifugal barrel 21 and sequentially sink along the spiral track, and the centrifugal force is fully utilized for separating particles. The improvement effectively solves the problem of low separation efficiency when the traditional device is used for treating materials with high viscosity or similar particle diameters, so that the traditional device can better meet the requirement of high-precision separation in the preparation process of bulk drugs.

In addition, the device further optimizes the fluidity of the material by introducing a centrifugal pump 16. The centrifugal pump 16 is installed between the feeding port 152 and the transfer bin 15, and the granular material can be tangentially flushed into the centrifugal cylinder 21 by the action of the centrifugal pump 16 and rotated at a high speed along the spiral flow wings 214. Compared with the traditional single action mode depending on gravity and centrifugal force, the device is more excellent in fluidity guiding performance of materials, and the sustainability and high efficiency of the materials in the whole filtering process are ensured. Not only the speed of particle separation is improved, but also the processing requirements of high-viscosity materials and large-batch materials can be better met, thereby greatly reducing the running cost of equipment and improving the production efficiency.

In terms of waste treatment, the device realizes automatic discharge of waste by the design of the hollow vortex drum 215. The hollow vortex tube 215 penetrating through the top wall of the chamber of the centrifugal tube 21 can effectively filter and separate impurities and waste materials, and is discharged through the waste discharge port 212 which is bent and extended upwards. The problem that traditional centrifugal filter equipment often has waste material to be detained, the discharge is unsmooth leads to frequent equipment clearance and maintenance demand, and this device has guaranteed the timely emission of waste material through reasonable system design that discharges, has avoided equipment jam and shut down problem. The physical structure design reduces manual operation, reduces equipment maintenance frequency in the production process, and further reduces production cost.

Meanwhile, the synchronous transmission mechanism 11 of the device can realize synchronous movement of the crushing teeth 13, the conveying paddles 141 and the switching blades 151, and ensures uniform flow and efficient screening of materials. The traditional centrifugal filtration equipment is generally uneven in transmission, so that uneven material distribution and low in filtration efficiency are caused, and the synchronous transmission design can enable all parts to operate in a coordinated manner, so that the consistency and stability of materials in the whole filtration process are ensured, and the conditions of poor equipment loss and separation effect caused by vibration, noise and the like in the equipment operation process are avoided. Not only improves the stability of the equipment, but also effectively reduces the energy consumption of the equipment, so that the equipment can continuously and efficiently run in a high-strength production environment.

In summary, the device overcomes a plurality of defects in the prior art through the optimized design of the centrifugal filtering structure, and has remarkable beneficial effects. Firstly, materials are subjected to mixing crushing, preliminary screening and efficient separation of spiral cyclone wings 214, so that the separation precision and efficiency are improved; secondly, the introduction of the centrifugal pump 16 enhances the fluidity and the processing capacity of the materials, and ensures the smooth mass production of the high-viscosity materials; furthermore, the automatic waste discharge system effectively solves the problems of equipment blockage and waste retention, and reduces the downtime and maintenance cost; finally, the synchronous transmission design improves the stability and the energy efficiency ratio of the equipment, so that the equipment has higher economical efficiency and practicability in the production process of high standards such as raw material medicine preparation and the like. Therefore, the device provides an ideal solution for solving the problem of high-cost centrifugal filtration in the preparation process of the bulk drug.

As a preferred embodiment, the lowest part of the inverted cone bottom of the collecting bin 22 is provided with a discharge valve 221 for effectively guiding out the finished product particles.

Example two

As shown in fig. 2-3, on the basis of the above embodiment, the present embodiment further provides the following:

in this embodiment, the crushing teeth 13 are double-shaft connection transmission "X" shaped composite fork, the screen 122 is a rubber screen 122, and the crushing teeth 13 rotate to elastically contact with the screen 122, so as to stir and screen particles with the same size into a centrifugal filter device;

The oversized material falls into the screen 122 and the crushing teeth 13 continue to spin, agitate and crush, causing it to crush completely through.

In the preparation process of the raw material medicine, centrifugal filtration is a key link to determine the purity of the product and the uniformity of particles. However, conventional centrifugal filtration techniques suffer from significant drawbacks such as unstable screening efficiency, uneven finished particle size, and unsatisfactory filtration results. These problems directly affect the quality and production efficiency of the product, and particularly in the preparation of high-precision crude drugs, the limitations of centrifugal filtration technology are prominent. Conventional centrifugal filters typically rely on a single centrifugal device to separate particles, which requires high uniformity of particle size. However, due to factors such as differences in particle size and singleness of centrifugal process, problems such as particle blocking devices and inconsistent finished products often occur in the conventional equipment when treating diversified raw materials, so that the filtration precision is reduced and the production efficiency is reduced.

To address these issues, the combination of the innovative double-shaft-coupled driven "X" shaped composite fork and elastomeric screen 122 provides a completely new solution to centrifugal filtration. Through the technical scheme, the front-end design remarkably improves the filtering efficiency and accuracy, and is particularly suitable for high-accuracy requirements in the preparation of bulk drugs. First, the double-shaft-connection-driven "X" shaped composite fork design has structural advantages. The "X" shaped design of the fork may provide a stable coaxial rotary stirring, which enables a more flexible movement path of the crushing teeth 13 during operation. Compared with the traditional single-shaft transmission, the design can more uniformly apply stirring and crushing effects on materials, and effectively avoid the problems of accumulation and uneven distribution of particles in the subsequent centrifugal filtration process. Meanwhile, the double-shaft transmission ensures the balanced distribution of stirring moment, and further improves the uniformity of material particle mixing. Particularly in the pharmaceutical process, the size and the shape of the particles are critical to the quality of the medicines, and the uniform stirring design ensures the consistency in the particle screening process, so that the quality of the final product is improved.

Second, the screen 122 is made of an elastic material, which greatly improves the flexibility and durability of the filtration. Conventional centrifugal filters generally do not have a pre-screen 122 and are susceptible to wear, deformation, and even breakage during long-term use due to high-strength centrifugal filtration, resulting in a decrease in filtration efficiency and frequent maintenance of equipment. The front elastic screen 122 has stronger compression resistance and stretching resistance, can realize self-adaptive deformation in stirring and crushing, and avoids accumulation and blockage of particles on the screen 122. Meanwhile, the elastic screen 122 can further screen and separate particles by elastic contact with the crushing teeth 13 and synchronous vibration rebound in the stirring process, and the dynamic contact mode has more remarkable effect compared with the traditional centrifugal filter. Not only effectively improves the screening precision, but also enhances the durability and stability of the screen 122 for long-term use, and greatly reduces the maintenance requirement of equipment.

In addition, the design also makes up for the defect of the traditional equipment in the treatment of high-viscosity and high-humidity materials. When the conventional centrifugal filter device directly processes the raw materials with high viscosity and high humidity, the phenomena of unsmooth filtration, blocking of the screen 122 and the like often occur, and the innovative design effectively avoids the problems through the double-shaft crushing of the crushing teeth 13 and the elastic deformation of the screen 122. The material, after agitation and screening, can quickly enter the centrifugal separation stage without staying on the screen 122 for too long, thereby improving overall filtration efficiency.

In summary, the stirring hopper 12 remarkably overcomes the defects in the conventional technology through innovative structural design and material selection, and has remarkable advantages in the aspects of improving screening precision, prolonging the service life of equipment, reducing maintenance cost and the like. The design provides reliable technical support for high-precision centrifugal filtration in the preparation process of the raw material medicines, and can remarkably improve the production efficiency and the quality of the final product.

Example III

As shown in fig. 3 to 8, on the basis of the above embodiment, the present embodiment further gives the following:

in this embodiment, the swirl wings 214 are made of elastic material, and can change the pitch of the spiral along the spiral direction, so as to adapt to the particles with different specific gravities, and a magnet is attached to the outer peripheral surface of the swirl wings, so that the swirl wings can move up and down along the inner wall of the centrifugal cylinder 21, so as to adjust the height of the sucked impurities.

The waste discharge port 212 of the centrifugal barrel 21 is embedded with a waste guide pump 231, so that impurities in the central shaft of centrifugal filtration can be effectively led out, and the efficiency of centrifugal filtration of the impurities is improved.

In the preparation process of the bulk drug, centrifugal filtration is one of the key steps, however, the prior art often faces the problems of insufficient filtration precision, incomplete impurity removal and the like when processing particles with different densities. The fixed structure of the conventional centrifugal filter device is difficult to adapt to the physical characteristics of different types of particles, and particularly, when treating particles with large specific gravity difference, the filter effect is not ideal. In addition, the suction height of impurities is usually fixed, and cannot be dynamically adjusted according to actual requirements, so that partial impurities remain or excessive raw materials are sucked out, and the purity and yield of the final product are affected. Such problems not only lead to reduced filtration efficiency, but may also affect the purity of the final product. The traditional technology generally relies on a single centrifugal force to drive impurities to be discharged to the outer wall, but the mode has poor effect under a high-viscosity complex particle system, the impurities are easy to stay at key parts, frequent cleaning and maintenance of equipment are caused, and the production efficiency is reduced.

In response to these problems, the new centrifugal filtration design effectively overcomes the above disadvantages by incorporating swirl vanes 214. Through the above technical solution, first, the swirl wings 214 are made of elastic materials, and the spiral pitch of the swirl wings can be adjusted according to the densities of different particles, so that the centrifugal force distribution is more uniform, and the swirl wings are adapted to the particles with different specific gravities. The design greatly improves the filtering precision, ensures the effective separation of impurities and raw materials, and reduces the filtering deviation caused by the characteristic difference of particles. Next, magnets are attached to the outer peripheral surfaces of the swirl vanes 214 so as to be movable up and down along the inner wall of the centrifugal cylinder 21. The design enables the suction height of the impurities to be flexibly adjusted, and avoids the problems of impurity residue or raw material loss possibly caused by fixing the suction position. Through the dynamic adjustment, the filtering process can be controlled more accurately, impurities are ensured to be thoroughly sucked out, and meanwhile, the effective components of the raw materials are reserved to the maximum extent.

The function of the waste pump 231 is another important technical innovation in the whole system. The waste pump 231 is buried in the waste discharge port 212 of the centrifugal barrel 21, and effectively discharges spiral impurities at the central axis through an active drainage mode. Traditional centrifugal filtration equipment relies on centrifugal force to screen out impurity, but to the impurity that is in the axis position spiral, centrifugal force effect is weaker, leads to the impurity in these regions to be difficult to effective discharge. And the waste pump 231 can provide additional drainage power to purposefully suck out and discharge impurities near the central axis out of the system, thereby remarkably improving the efficiency of impurity filtration. The central axis is usually the high-incidence area of impurity accumulation, and draw useless pump 231 to handle this weak link specially, guaranteed that the impurity in the equipment can not concentrate and pile up, kept centrifugal filtration process's high efficiency and stability.

In addition, the design has good adaptability to various different types of materials. The combination of the swirl vanes 214 and the waste pump 231 can be flexibly adjusted according to different characteristics of the materials, whether the materials are high-viscosity materials or the mixture containing a large amount of tiny impurities. The up-and-down movement of the swirl vanes 214 and the adjustment of the helical pitch allow for the wide applicability of the impurities to be sucked out at different heights and different specific gravity particles, ensuring the accuracy and efficiency of the filtration. The active waste discharge function of the waste pump 231 further enhances the stability of the system, so that large particles or fine impurities can be effectively discharged, and the consistency and the thoroughness of the filtering effect are ensured. The design can obviously improve the operation efficiency of a production line and reduce the quality problem risk caused by impurity residues in the field of pharmacy, particularly in the preparation of high-precision bulk drugs.

In summary, the magnetic attraction fit flexible adjustment design of the swirl wings 214 and the application of the waste pump 231 greatly improves the performance and adaptability of the centrifugal filter device. Compared with the traditional filtering technology, the novel design not only solves the problems of impurity retention and difficult discharge of central axis impurities, but also remarkably improves the efficiency of impurity filtering and the continuity of equipment operation. The method provides a new solution for high-efficiency centrifugal filtration in the preparation process of the bulk drug, not only improves the purity and quality of the product, but also reduces the maintenance cost of equipment, and provides solid technical support for high-efficiency production in the pharmaceutical industry.

Example IV

in this embodiment, the transfer blades 151 of the transfer bin 15 are formed by six equally spaced trapezoidal blades radially for rotating and stirring particles to reach the feeding port 152.

The feeding port 152 of the feeding assembly 1 is connected with the receiving port 211 of the centrifugal filter assembly 2 through a buckle.

In the preparation process of raw medicines, the centrifugal filtration technology plays a crucial role, and the purity and the production efficiency of the product are directly related. However, the conventional centrifugal filtration technology has certain defects in the particle conveying and filtration butt joint process, especially in the aspects of uneven particle conveying, unstable butt joint and the like. These problems not only affect the filtration efficiency, but also tend to cause discontinuities in the operation of the equipment, thereby reducing overall production efficiency. Conventional devices often rely on gravity or simple mechanical conveyance to convey the material from the feed port 121 to the centrifugal filter assembly 2, however such designs often result in uneven particle distribution, affecting subsequent filtration. In particular in high-precision production, uniform transport of particles and stable docking of channels are critical for filtration efficiency and product quality.

For the problems, the radial arrangement design of six equally-spaced trapezoidal blades in the switching bin 15 is adopted, and through the technical scheme, the conveying mode of particles is greatly optimized. In conventional centrifugal filtration devices, the transport of particles is often not uniform enough, especially when the transport speed is not uniform, part of the particles may accumulate or be unevenly distributed, thereby affecting the subsequent filtration process. And six equally divided trapezoidal blades can realize the uniform transport to the granule through rotatory stirring. The uniform distribution of the particles is ensured structurally, and the accumulation phenomenon of the particles due to gravity in the conveying process is effectively avoided through the special shape and the equidistant arrangement of the particles. By continuing to spin the agitation, the particles can be more evenly delivered to the feed port 152, thereby ensuring uniformity of particle distribution during subsequent centrifugal filtration.

In addition, the design of six trapezoidal blades also improves the efficiency of conveying through rotary motion. In conventional equipment, the particle transport process may be affected by the speed and material characteristics, resulting in unstable transport speeds of the particles. Through the design of the rotary stirring, the trapezoidal blades can apply uniform power to the particles while rotating, so that the particles can keep a stable motion state in the conveying process. The stable conveying mode not only improves the production efficiency, but also reduces the loss and friction damage of particles in the conveying process, and further improves the quality and the yield of products.

And the feeding component 1 and the centrifugal filtering component 2 matched with the design are connected by adopting a buckle, so that the stable operation of the equipment is ensured. Traditional feeding and filtration assembly butt joint modes are often loose, and connection is not tight easily due to equipment vibration or material characteristics, so that the conveying efficiency of particles is affected or materials are leaked. The snap connection ensures accurate docking between the inlet 121 and the outlet 211 by a more compact and stable structural design. The particle conveying device not only prevents the loss of materials in the particle conveying process, but also ensures the running stability of equipment and reduces the production interruption caused by misplacement or loosening of components. In addition, the buckle connection design simplifies the installation and maintenance process of the equipment, and workers can more quickly complete the butt joint or disassembly of the equipment, so that the equipment maintenance and cleaning time is shortened, and the overall operation efficiency of the production line is improved.

The structural designs are excellent in uniform particle conveying and equipment butt joint, and the problems of blockage and leakage commonly seen in the traditional centrifugal filter equipment are effectively solved. Due to the stirring effect of the trapezoid blades, particles can keep continuous fluidity in the conveying process, and the problem of blockage caused by accumulation or friction is not easy to occur. Meanwhile, the tight butt joint of the conveying component and the filtering component is ensured by the buckle connection mode, and the material leakage phenomenon caused by improper butt joint is effectively avoided. The design greatly reduces material loss in the production process, improves the resource utilization rate, and provides powerful support for improving the economic benefit of production.

Compared with the prior art, the design of the six trapezoidal blades and the buckle connection brings about remarkable technical improvement. The conventional equipment often depends on a single conveying mode in the particle conveying process, and the uniform distribution of particles and the stability of conveying speed cannot be effectively ensured. And this innovation design has not only improved the homogeneity of carrying through rotatory stirring granule, has still guaranteed the seamless connection of feeding and filtration process through the buckle connection to the whole operating efficiency of equipment has effectively been promoted. In the preparation process of the bulk drug, stable transportation and efficient filtration of particles are important to ensure the purity and consistency of the product, and the design is based on the optimization of the key links, so that a guarantee is provided for an efficient and stable production flow.

In summary, the application of the six equally-divided trapezoidal blades and the buckle connection design in centrifugal filtration not only overcomes the defects of the traditional equipment in the aspects of particle conveying and butt joint, but also remarkably improves the continuity, stability and efficiency of the production process. Through this design, the granule can be carried to the filtration stage more evenly, has avoided the filter effect that leads to because of uneven distribution to descend, simultaneously, the buckle is connected the stability of having guaranteed equipment operation, has reduced maintenance demand and production interruption.

Example five

In this embodiment, the lower peripheral surface of the centrifugal cylinder 21 is provided with a butt flange 213, and the butt flange 213 is bolted to the aggregate bin 22 for maintenance and replacement of the centrifugal cylinder 21.

The frame 3 is provided with a stabilizing beam 31 and a damping beam 32 which are vertically symmetrically arranged and used for filtering vibration generated by the centrifugal filter cylinder body.

In the preparation process of raw medicines, the stability and convenience of the centrifugal filter device are important factors for determining the production efficiency and the product quality. However, the conventional centrifugal filter device generally has the defects of excessive vibration, inconvenient installation and maintenance and the like in practical application. These problems not only affect the stability of the filtration process, but also cause increased equipment wear and increased maintenance difficulties, thereby negatively affecting the continuity and efficiency of production. Particularly, during high-speed operation, the severe vibration generated by the centrifugal cylinder 21 may cause a decrease in the overall operation stability of the apparatus, and loosening of parts, unstable filtering effects, and the like may occur easily. In addition, maintenance and replacement of traditional equipment often need to dismantle a large amount of spare parts, and the process is loaded down with trivial details, consuming time longer, has not only increased maintenance cost, has still influenced the persistence and the efficiency of production.

For these problems, a design is introduced in which a counter flange 213 is provided on the lower peripheral surface of the centrifugal cylinder 21, and the counter flange 213 is bolted to the aggregate bin 22. Through the technical scheme, convenience of equipment in the maintenance and replacement process is greatly improved. The cylinder of traditional centrifugal filtration equipment adopts welding or riveted fastening mode to be connected with other components usually, need decompose a plurality of parts when dismantling, and the operation is complicated and causes secondary damage to equipment easily. The design of the butt flange 213 enables the centrifugal barrel 21 to be quickly abutted and separated from the aggregate bin 22, and the centrifugal barrel can be quickly disassembled and assembled only by unscrewing bolts during maintenance and replacement. The time cost in the equipment disassembly and assembly process is reduced, the complexity of manual operation is reduced, and the maintenance efficiency and reliability of the equipment are effectively improved. Meanwhile, the design also reduces the abrasion risk of parts caused by frequent disassembly, and prolongs the service life of the equipment.

Furthermore, the use of the counterflange 213 improves the tightness and operational stability of the device as a whole. By fastening and connecting the flange bolts, tight butt joint of the centrifugal cylinder 21 and the aggregate bin 22 can be ensured, and leakage and uneven filtering caused by loose connection are avoided. Compared with the traditional welding or riveting fastening mode, the flange connection can provide more stable support on the premise of not sacrificing tightness, so that the equipment still maintains good stability and durability in long-term high-speed centrifugal filtration. The design provides important guarantee for the stable operation of the centrifugal filter device at a high rotating speed, obviously reduces the vibration and noise of equipment in high-strength working, and is beneficial to improving the filtering precision of products and the safety of production environments.

In the optimal design for the vibration problem in the running process of the equipment, the stabilizing beams 31 and the damping beams 32 which are symmetrically distributed on the upper and lower sides of the frame 3 play a key role. In the conventional centrifugal filter device, since vibration generated when the centrifugal cylinder 21 rotates at a high speed is difficult to be effectively absorbed and eliminated, the overall vibration of the apparatus tends to be excessively large, not only the filtering effect is affected, but also fatigue damage and a shortened service life of the apparatus may be caused. Especially when handling larger batches of material, the problem of equipment vibration is more pronounced. The stabilizer beams 31 and the shock absorbing beams 32 are symmetrically arranged on the frame 3, so that vibration generated in the centrifugal filtering process is effectively dispersed and absorbed. The stabilizing beams 31 provide additional structural support to ensure that the device remains balanced and stable during high speed rotation; the vibration absorbing beam 32 reduces the vibration amplitude to be within a safe range by absorbing vibration energy, thereby reducing the influence of equipment vibration on the filtering effect.

Compared with the single damping design of the traditional equipment, the combination of the stabilizing beams 31 and the damping beams 32 which are arranged vertically symmetrically can more comprehensively offset multidirectional vibration generated in the centrifugal filtration process, so that the equipment still keeps a good running state during high-speed centrifugal filtration, the risks of equipment abrasion, component looseness and even equipment faults caused by overlarge vibration are avoided, noise pollution during the running of the equipment is effectively reduced, and more comfortable operating conditions are provided for the production environment.

In summary, the combined design of the lower peripheral surface butt flange 213 of the centrifugal barrel 21, the stabilizing beam 31 and the damping beam 32 has significant advantages in terms of improving the maintenance convenience and the operation stability of the equipment. Compared with the traditional equipment, the design greatly simplifies the installation and maintenance process of the equipment, reduces the complexity and time cost of manual operation, and reduces the equipment abrasion and maintenance frequency, thereby remarkably improving the production efficiency. Meanwhile, the vibration problem during high-speed operation of equipment is effectively solved through the matched use of the stabilizing beam 31 and the damping beam 32, and powerful guarantee is provided for stability and filtering precision in the centrifugal filtering process. The innovative design not only improves the comprehensive performance of the equipment, but also reduces the fault risk of the equipment under the high-load condition, provides a more efficient and stable solution for centrifugal filtration in the preparation process of the bulk drug, and has good application prospect and popularization value.

The working principle and the using flow of the invention are as follows:

1. Device preparation and inspection

Before the centrifugal filter device is started up, a complete inspection of the apparatus is first required. And checking whether the centrifugal filter assembly 2 and the front feeding assembly 1 on the frame 3 are firmly fixed or not, and ensuring that key components such as the stirring hopper 12, the transmission mechanism 11, the centrifugal cylinder 21, the collecting bin 22 and the like are not loosened and damaged. At the same time, it is checked whether the crushing teeth 13 in the hopper 12 of the feed assembly 1 are correctly installed, whether the screen 122 is intact, and whether the internal rotation conveying paddles 141 of the conveying pipe 14 and the transfer blades 151 in the transfer bin 15 are flexibly rotated. The confirmation magnet can move up and down along the inner wall of the centrifugal barrel 21 for subsequent adjustment. Finally, the power connection of the equipment is ensured to be normal, and whether the power systems of the centrifugal pump 16, the waste pump 231 and the like are normal or not is checked.

2. Feed preparation

The particulate material to be filtered is prepared and poured into the hopper 12 feed opening 121 of the feed assembly 1. The crushing teeth 13 inserted in the stirring hopper 12 start rotating stirring and are in elastic contact with the elastic screen 122 at the bottom, and the particles with relatively uniform particle sizes are screened out by matching with stirring and crushing and enter the semi-open conveying pipe 14 below through the screen 122. At this time, the transmission mechanism 11 drives the switching blade 151 and the conveying paddle 141 to operate synchronously, so as to avoid the influence on the subsequent conveying process due to the blockage of particulate matters. The unqualified impurities or oversized particles are left in the hopper 12 and are stirred and crushed in a circulating manner until they pass through the screen 122.

3. Particle transport

The screened particles enter the b-shaped transfer bin 15 through the conveying pipe 14. In the transfer bin 15, six trapezoidal transfer blades 151 are radially distributed in an equally spaced manner, and after the blades rotate to further stir and mix the particles, the materials are uniformly conveyed to the feed port 152 and ready to enter the centrifugal filter device.

4. Centrifugal filtration

The particle material enters the centrifugal filter assembly 2 through the feeding port 152, and at this time, the feeding port 152 is firmly connected with the receiving port 211 of the centrifugal filter assembly 2 through a buckle, so that the material can be ensured to enter the centrifugal cylinder 21 smoothly. The material is driven by the centrifugal pump 16 to enter the material receiving port 211 tangentially in a spiral manner along the spiral flow wings 214 and spirally rotate downwards at a high speed. This swirling motion causes impurities in the particulate material and finished particles to separate due to the difference in diameter and density. In the centrifugal filtration process, the height of the magnet attached to the outer peripheral surface of the cyclone wing 214 can be adjusted as required to control the height of the impurity suction, thereby improving the filtration accuracy.

5. Impurity discharge

When the granular materials are rotationally separated in the centrifugal cylinder 21, the impurities spiral at the central axis of the centrifugal cylinder 21. Impurities enter the waste drum 23 through the waste outlet 212. The waste discharge port 212 of the centrifugal barrel 21 is also provided with a waste guide pump 231, which can accelerate the extraction of impurities at the middle shaft and further improve the efficiency of impurity separation.

6. Finished particle collection

After the particles are separated from the impurities, the finished particles gradually settle to the reverse conical bottom of the collection bin 22 and finally collect to the lowest position of the reverse conical bottom. The discharge valve 221 is opened to discharge the finished pellets from the collection bin 22.

7. Maintenance and cleaning of equipment

After the whole filtering process is completed, the equipment needs to be maintained and cleaned. First, the power is turned off, ensuring that the device is completely shut down. And secondly, removing the fastening connection part, and cleaning residual particles and impurities in the parts such as the feeding port 152, the switching bin 15, the centrifugal barrel 21 and the like. The collection bin 22 and the discharge valve 221 at the bottom of the inverted cone also need to be cleaned to prevent particle accumulation during the next use. Finally, the damping beam 32 and the stabilizing beam 31 of the frame 3 are inspected, so that the equipment is ensured to be stable in the running process, and the interference of vibration on the filtering effect is reduced.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. The utility model provides a centrifugal filter device, includes leading feeding subassembly (1) and erects centrifugal filter component (2) on frame (3), and stirring fill (12) and drive mechanism (11) that feed inlet (121) were established to the slant are prolonged to this feeding subassembly (1) front portion frame, transversely wear to be equipped with broken tooth (13) in this stirring fill (12) to inlay in its bottom and have been equipped with screen cloth (122), half open conveying pipe (14) of internal rotation conveying rake (141) have been laid to this screen cloth (122) below, the tube head cover of conveying pipe (14) is equipped with "b" font switching storehouse (15), and its in-suspension has switching leaf (151), the top of switching storehouse (15) is bent and is prolonged to be equipped with horizontal pay-off mouth (152), just broken tooth (13), conveying rake (141) are drive in step with switching leaf (151), centrifugal filter component (2) are including hollow centrifuge bowl (21) of stick ball shape and cylinder type collecting bin (22) that bottom cover were established, this feed bin (22) bottom is the back taper type, its characterized in that: the centrifugal barrel (21) chamber is internally stuck with a spiral swirl wing (214), a tangential receiving opening (211) transversely extending at the end part of the centrifugal barrel is detachably connected with the feeding opening (152), a hollow vortex barrel (215) is arranged on the top wall of the centrifugal barrel (21) chamber in a penetrating way, a centrifugal pump (16) is embedded at the connecting part, particles in the switching bin (15) can be driven to tangentially enter the centrifugal barrel (21) to rotate downwards at a high speed along the swirl wing (214), and the vortex barrel (215) is upwards bent and extended to form a waste discharge opening (212) connected with the waste barrel (23) for filtering and collecting impurities in the particles.

2. A centrifugal filter device according to claim 1, wherein: crushing tooth (13) are biax connection driven "X" font compound fork, screen cloth (122) are rubber screen cloth (122), with screen cloth (122) elastic contact when crushing tooth (13) rotate for stirring screening material, the granule that the size is unanimous gets into centrifugal filter equipment, and the too big material falls into screen cloth (122), and crushing tooth (13) continuously rotate stirring is broken, makes it smash completely and passes.

3. A centrifugal filter device according to claim 2, wherein: the switching blades (151) of the switching bin (15) are formed by six equally-spaced trapezoid blades in the radial direction and are used for rotating and stirring particles to reach the feeding port (152).

4.A centrifugal filter device according to claim 1, wherein: the cyclone wings (214) are made of elastic materials, can change the spiral interval along the spiral direction, are used for adapting to particles with different specific gravities, are attached with magnets on the outer peripheral surface, can move up and down along the inner wall of the centrifugal cylinder (21), and are used for adjusting the height of impurity suction.

5. A centrifugal filter device according to claim 4, wherein: the lower peripheral surface of the centrifugal cylinder (21) is annularly provided with a butt flange (213), and the butt flange (213) is fixed with a collecting bin (22) through bolts for maintaining and replacing the centrifugal cylinder (21).

6. A centrifugal filter device according to claim 5, wherein: and a discharging valve (221) is arranged at the lowest part of the inverted cone bottom of the collecting bin (22) and is used for effectively guiding out finished product particles.

7. A centrifugal filter device according to claim 1, wherein: the frame (3) is vertically symmetrically provided with a stabilizing beam (31) and a damping beam (32) for filtering vibration generated by the centrifugal filter cylinder body.

8. A centrifugal filter device according to claim 5, wherein: the waste discharge port (212) of the centrifugal cylinder (21) is embedded with a waste guide pump (231) which can effectively guide out impurities in the centrifugal filtering center shaft.

9. A centrifugal filter device according to claim 8, wherein: the feeding port (152) of the feeding assembly (1) is connected with the receiving port (211) of the centrifugal filtering assembly (2) through a buckle.

10. A centrifugal device for pharmaceutical use, characterized by comprising the centrifugal filter device according to any one of claims 1 to 9, wherein the centrifugal device for pharmaceutical use is used for stirring, pulverizing, filtering and screening medicinal raw materials.