CN115646035B

CN115646035B - Centrifugal filter device for pharmacy

Info

Publication number: CN115646035B
Application number: CN202211452040.0A
Authority: CN
Inventors: 黄之文; 王坤; 孙鹏; 祁翔; 周洪信; 周敏; 郁慧
Original assignee: Anhui Fengyuan Likang Pharmaceutical Co ltd
Current assignee: Anhui Fengyuan Likang Pharmaceutical Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2024-07-19
Anticipated expiration: 2042-11-21
Also published as: CN115646035A

Abstract

The invention relates to the technical field of centrifugal filters, and particularly discloses a centrifugal filter device for pharmacy, which comprises a bottom box seat and a sealed outer cover, wherein a liquid collecting barrel and a filter barrel are concentrically and fixedly arranged in the sealed outer cover, the upper end of the filter barrel is connected with a guide plate, the lower end of the filter barrel is concentrically provided with a centrifugal throwing disc, the lower end of the centrifugal throwing disc is connected with a driving unit, the upper end of the centrifugal throwing disc is connected with a conveying assembly, and the lower surfaces of the liquid collecting barrel and the sealed outer cover are respectively connected with a liquid discharge pipe and a crystal discharge channel; this centrifugal filter device for pharmacy is through the structural design to the inside chamber way of centrifugal throwing the dish for the crystallization liquid medicine that throws away obtains enough big kinetic energy and acts on and realize centrifugal separation on the cartridge filter, makes whole centrifugal filter device for pharmacy also can have better centrifugal filtration effect even under the general motor of performance, still further designs simultaneously and has realized the real-time mediation of filtration pore on the cartridge filter, need not to shut down and overhaul.

Description

Centrifugal filter device for pharmacy

Technical Field

The invention relates to the technical field of centrifugal filters, and particularly discloses a centrifugal filter device for pharmacy.

Background

In the preparation process of many crude drugs, the crystallization material and the solution are fed into a centrifugal filter together for centrifugal filtration, so that the effect of solid-liquid separation is achieved, and then the crystallization material is dried in vacuum to obtain a finished product. When the existing centrifugal filter is used for centrifugally filtering medicine crystal materials, a centrifugal filtering effect can be guaranteed only by providing a centrifugal force which is large enough, so that the motor performance requirement for providing the centrifugal force is high, and the equipment cost of the whole centrifugal filter is too high.

The application patent with the application number of CN2013107056501 discloses a centrifugal filter device which is applicable to mixed liquid containing solid and liquid and comprises a lower shell unit, an upper cover unit, a filter unit and a rotary motor, wherein the lower shell unit comprises a barrel body and a liquid discharge pipe; the upper cover unit comprises an upper cover and a feeding pipe, and the upper cover is provided with a discharge hole; the filtering unit comprises a filtering basket for temporarily storing the mixed liquid and a plurality of upper blades; the filter basket is provided with a bottom wall, a filter screen surrounding wall and an opening, and the filter screen surrounding wall is provided with a plurality of meshes; the rotary motor is inserted in the bottom wall and rotates around the axis of the rotary motor to drive the filtering unit to rotate, so that the solid of the mixed liquid upwards rotates along the surrounding wall of the filter screen to pass through the opening and is beaten by the upper blade to be thrown out from the discharge hole, and the liquid of the mixed liquid penetrates through the corresponding mesh to the liquid discharge pipe to flow out, so that the mixed liquid is completely separated into two phases of the solid and the liquid. When the centrifugal filter device disclosed by the application is used for filtering the crystal liquid medicine, a rotary motor with higher performance is required to be equipped to ensure high-speed rotation in the running process of equipment in order to improve the centrifugal filtering effect. In addition, in the long-time centrifugal filtration's of crystallization liquid medicine in-process, the crystallization material easily causes the filtration pore blocking on the filter basket, need in time shut down to dredge the filtration pore blocking on the filter basket, and it has not only influenced material centrifugal filtration's efficiency, and when handling inside filter basket, outside air can enter into inside equipment, easily causes inside pollution to can not effectively be applicable to the centrifugal filtration of crystallization liquid medicine. In view of the above, the present application provides a centrifugal filter device for pharmaceutical use that can effectively solve the above-described problems.

Disclosure of Invention

The invention aims to provide a centrifugal filter device for pharmacy, which aims to solve the defects that the existing centrifugal filter has too high requirement on the performance of a centrifugal motor and needs to be stopped for maintenance when internal sieve holes are blocked.

The invention is realized by the following technical scheme:

the utility model provides a centrifugal filter device for pharmacy, includes floor box seat and sealed dustcoat, concentric fixed liquid collecting vat and the cartridge filter of being provided with in the sealed dustcoat, liquid collecting vat upper end opening sets up and overlaps and establish at the cartridge filter periphery, the upper end of cartridge filter is connected with the stock guide with the crystallization material guide into sealed dustcoat lower extreme, the lower extreme of cartridge filter is provided with concentric centrifugal throwing dish, the lower extreme of centrifugal throwing dish is connected with drive unit, the upper end of centrifugal throwing dish is connected with the conveying subassembly that upwards carries crystallization material in the cartridge filter, the lower surface of liquid collecting vat and sealed dustcoat is connected with fluid-discharge tube and row brilliant passageway respectively;

The centrifugal impeller comprises a sealing outer cover, a centrifugal impeller, a centrifugal acceleration cavity, a sealing inner cover, a sealing outer cover, a sealing inner cover and a sealing inner cover, wherein a circular inner cavity is formed in the center of the centrifugal impeller, the upper end of the circular inner cavity is rotationally connected with a liquid inlet pipe fixed on the sealing outer cover, a plurality of centrifugal acceleration cavities communicated with the circular inner cavity are formed in the periphery of the centrifugal impeller in an annular array shape, two side faces of each centrifugal acceleration cavity are arc-shaped, and the width of an opening at the outer end of each centrifugal acceleration cavity is smaller than that of the middle position.

In the running process of the centrifugal filter device for pharmacy, the liquid inlet pipe is externally connected with the infusion pipe connected with the crystallization kettle, and then the crystallization liquid medicine is continuously fed under the action of the delivery pump, so that the crystallization liquid medicine enters the circular inner cavity of the centrifugal throwing disc. The synchronous start drive unit makes the centrifugal throwing disc rotate, and in the rotatory in-process of centrifugal throwing disc, the crystallization liquid medicine that enters into in the centrifugal accelerating cavity can be constantly accelerated under the effect of centrifugal force and obtain kinetic energy, simultaneously because the special design of centrifugal accelerating cavity structure has not only prolonged the acceleration time of crystallization liquid medicine in the centrifugal accelerating cavity, and before crystallization liquid medicine is thrown away from centrifugal throwing disc, because the outer end opening width of centrifugal accelerating cavity is less than the width setting of intermediate position department for the crystallization liquid medicine pressure of the outer end department of centrifugal accelerating cavity increases, has further improved the kinetic energy of crystallization liquid medicine when finally throwing away under the pressure effect, then bumps on the cartridge filter, makes the centrifugal filtration effect of crystallization liquid medicine better.

In the centrifugal filtration process of the crystallization liquid medicine, the solution flows into the liquid collecting barrel through the filtering holes, crystals are remained in the filter barrel, are continuously lifted upwards along the inner wall of the filter barrel under the action of the conveying component, fall into the lower end of the sealing outer cover along the material guiding plate, and are discharged from the crystal discharging channel to be collected.

As a further arrangement of the scheme, a plurality of swinging rods are uniformly connected to the inner wall of the liquid collecting barrel in the circumferential direction, the movable end parts of the swinging rods are connected with knocking ball heads, and springs are connected between the swinging rods and the inner wall of the liquid collecting barrel. Above-mentioned structural design is when the filtration pore of corresponding position is stopped up on the cartridge filter, receives the sudden reduction under the rivers impact effect through knocking the bulb, then makes the swinging arms swing to cartridge filter department under the effect of spring, then shakes down crystals in the filtration pore under the impact effect of knocking the bulb, can realize the real-time mediation of cartridge filter.

As the concrete setting of above-mentioned scheme, diapire centre of a circle department of liquid collecting vessel and cartridge filter all is provided with sealed bearing, drive unit includes the rotation axis that is connected with two sealed bearings, the upper end of rotation axis is connected with centrifugal throwing dish, and the lower extreme is connected with driven pulley, be provided with centrifugal motor on the base, and be provided with driving pulley on centrifugal motor's the output shaft, be provided with the V-belt between driving pulley and the driven pulley. The centrifugal motor is used as a power input device, and then the centrifugal throwing disc rotates at a high speed under the action of the triangular belt and the rotating shaft.

As the concrete setting of above-mentioned scheme, the shape of cartridge filter is the reverse round platform shape, conveying assembly includes the toper section of thick bamboo that is connected with centrifugal throwing dish, the outer disc of toper section of thick bamboo is provided with the spiral and carries the leaf. The above-mentioned concrete design that is conveying assembly, through the synchronous rotation of toper section of thick bamboo and centrifugal throwing dish, then upwards promote the crystallization material under the effect of spiral conveying leaf and realize carrying.

As the concrete setting of above-mentioned scheme, the stock guide is the conical surface stock guide, the upper end of conical surface stock guide is connected with the upper end outer edge of cartridge filter, pass through a plurality of connecting rods fixed connection between conical surface stock guide and the sealed dustcoat.

As the specific setting of above-mentioned scheme, centrifugal throwing dish's upper surface is provided with sealed bearing, the lower extreme of feed liquor pipe is connected with sealed bearing and stretches into in the circular inner chamber, the upper end of stretching out sealed dustcoat of feed liquor pipe is connected with the control valve.

As the further setting of above-mentioned scheme, the lower surface undercut of sealed dustcoat sets up and has formed annular slot, and arranges brilliant passageway and annular slot and be linked together, be provided with the swivel ring in the sealed dustcoat with one heart, and be provided with on the sealed dustcoat and realize swivel ring pivoted scraping the material drive assembly, the inner circle of swivel ring is connected with and scrapes flitch with annular slot assorted. The above-mentioned in order to realize a specific design scheme that crystallization material discharged in the sealed dustcoat, drive the scraper through the rotation of swivel ring and remove in annular slot, then will scatter in annular slot crystallization material push to the row crystal passageway discharge can.

Compared with the prior art, the invention has the following beneficial effects:

1. According to the centrifugal filtering device for pharmacy, through the structural design of the inner cavity of the centrifugal throwing disc, the crystallization liquid medicine can be centrifugally accelerated for a longer time in the inner part, meanwhile, the liquid pressure is increased at the outlet of the centrifugal throwing disc, and finally, the thrown crystallization liquid medicine obtains enough kinetic energy and acts on the filter cartridge to realize centrifugal separation, so that the whole centrifugal filtering device for pharmacy can have a better centrifugal filtering effect even under a motor with general performance, and the equipment cost of the whole centrifugal filtering machine is reduced.

2. The invention also aims at improving the situation that the filtering holes on the filtering cylinder are easy to be blocked by crystalline materials, by arranging the swinging rod, the knocking ball head and the spring on the filtering cylinder, utilizing the action force of water flow on the knocking ball head after the screen holes are blocked to be suddenly reduced, then combining the action of the spring to enable the knocking ball head to strike the filtering cylinder, and then vibrating the crystalline materials in the filtering holes through the vibration action generated in the striking process, thereby realizing the real-time dredging of the filtering holes on the filtering cylinder, avoiding shutdown and maintenance, avoiding internal pollution in the maintenance process, and having novel structural design and excellent use effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the bottom perspective of the sealed enclosure of the present invention;

FIG. 3 is a schematic view of the internal perspective structure of the sealed housing of the present invention;

FIG. 4 is a perspective semi-sectional view of a filter cartridge and a tapered guide plate according to the present invention;

FIG. 5 is a schematic perspective view of a centrifugal throwing disc, a conical cylinder and the like in the invention;

FIG. 6 is a schematic view of the internal plan structure of the centrifugal slinger of the present invention;

FIG. 7 is a schematic perspective view of a rotary ring and a scraper according to the present invention;

fig. 8 is a schematic perspective view of a liquid collecting barrel, a swing rod, a knocking ball and the like in the invention.

Detailed Description

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The present application will be described in detail with reference to fig. 1 to 8, and examples.

Example 1

Embodiment 1 discloses a filter equipment that is arranged in pharmacy process to realize high-efficient centrifugation of crystallization feed liquid, and with reference to fig. 1, fig. 2 and fig. 3, the main part of this filter equipment includes base case 1 and sealed dustcoat 2, and this sealed dustcoat 2 is cylindric and fixed connection at the upper surface of base case 1. A liquid collecting barrel 3 is concentrically arranged in the sealed housing 2, the upper end of the liquid collecting barrel 3 is provided with an opening, the lower end of the liquid collecting barrel is connected with a liquid discharge pipe 301 extending out of the sealed housing 2 and the bottom box seat 1, and a first sealing bearing 302 is arranged at the center of the circle of the lower surface of the liquid collecting barrel 3.

Referring to fig. 3 and 7, a filter cartridge 4 is concentrically disposed inside the liquid collecting tub 3, and the filter cartridge 4 has an overall shape of an inverted truncated cone. A second sealing bearing 401 is provided at the center of the lower surface of the filter cartridge 4, and the upper end of the filter cartridge 4 is provided to protrude from the upper end opening of the liquid collecting tub 3. A large number of filtering holes 402 are formed in the outer circular surface of the filtering cylinder 4 positioned in the liquid collecting barrel 3, then a conical surface guide plate 403 which is inclined downwards is connected to the outer edge of the filtering cylinder 4 extending out of the upper end of the liquid collecting barrel 3, and a plurality of connecting rods 404 are arranged between the conical surface guide plate 403 and the inside of the sealed housing 2, so that the whole filtering cylinder 4 and the conical surface guide plate 403 are fixed in the sealed housing 2 under the action of the connecting rods 404.

Referring to fig. 2, 3 and 5, a rotary shaft 5 is rotatably connected between a first seal bearing 302 and a second seal bearing 401, a driven pulley 501 is provided at an end of the rotary shaft 5 extending into a base housing 1, a centrifugal motor 502 is provided on the base housing 1, a driving pulley 504 is provided on an output shaft of the centrifugal motor 502, and then a triangle belt 503 is provided between the driven pulley 501 and the driving pulley 504, so that the rotary shaft 5 can rotate at a high speed between the two seal bearings by the action of the centrifugal motor 502 and the triangle belt 503. The upper end of the rotary shaft 5 extending into the filter cartridge 4 is connected with a centrifugal throwing disc 6, the upper surface of the centrifugal throwing disc 6 is connected with a conical cylinder 7 matched with the filter cartridge 4, the outer circular surface of the conical cylinder 7 is provided with a spiral conveying blade 701, and the upper end of the spiral conveying blade 701 extends to the opening position of the filter cartridge 4.

Referring to fig. 1, 2 and 6, a circular inner cavity 601 is formed at the center of the centrifugal throwing disc 6, a plurality of centrifugal accelerating cavities 602 are formed on the outer side of the circular inner cavity 601 in a ring array shape, and five centrifugal accelerating cavities 602 in the figure are formed. The inner end of the centrifugal acceleration chamber 602 is communicated with the circular inner cavity 601, and the outer end forms a throwing opening on the circumferential surface of the centrifugal throwing disk 6. The two sides of the centrifugal acceleration cavity 602 are arc-shaped, so that the centrifugal acceleration path of the material in the centrifugal acceleration cavity 602 is longer, meanwhile, the width of the opening at the outer end of the centrifugal acceleration cavity 602 is smaller than that of the middle position of the centrifugal acceleration cavity 602, when the material accelerated by the centrifugal acceleration cavity 602 is thrown from the opening at the outer end of the centrifugal acceleration cavity 602, the water pressure is increased due to the narrowing of the opening position, the centrifugal kinetic energy when the material is thrown from the centrifugal throwing disc 6 is further improved, and then a good centrifugal filtering effect can be obtained when the material acts on the filter cartridge 4.

The centrifugal throwing disk 6 upper surface of circular inner chamber 601 centre of a circle position department is provided with third sealed bearing 603, simultaneously at sealed dustcoat 2's upper surface fixedly connected with vertically form feed liquor pipe 8, and the lower extreme of this feed liquor pipe 8 downwardly extending and be connected with third sealed bearing 603 is provided with control valve 801 at the upper end that feed liquor pipe 8 stretches out sealed dustcoat 2, simultaneously at feed liquor pipe 8's upper end connection has transfer line 802, and this transfer line 802 is finally linked together with the crystallization kettle.

Referring to fig. 3 and 7, the outer edge of the lower surface of the sealing cover 2 below the conical surface guide plate 403 is concavely arranged to form an annular groove 201, and a crystal discharging channel 202 is connected to the lower surface of the annular groove 201. An outer concave ring groove 203 is arranged on the outer circular surface of the sealing outer cover 2 above the annular groove 201, a rotary ring 204 is arranged in the ring groove 203, a scraping plate 205 is connected with the inner ring wall of the rotary ring 204, and the scraping plate 205 is attached to the inner wall of the annular groove 201. The outer surface of the rotary ring 204 is provided with a tooth surface 2041, the outer surface of the sealing housing 2 is provided with a scraping motor 206, and the output shaft of the scraping motor 206 is connected with a power gear which extends into the ring groove 203 and is meshed with the tooth surface 2041. In the centrifugal filtration process, the crystallization materials in the filter cartridge 4 are conveyed upwards by the spiral conveying blades 701, then fall along the conical surface guide plates 403 and scatter in the annular groove 201, at the moment, the scraping motor 206 is started again to enable the rotary ring 204 to rotate in the annular groove 203, and in the rotating process of the rotary ring 204, the crystallization materials in the annular groove 201 are scraped to the position of the crystal discharging channel 202 by the scraping plate 205, and then are discharged by the crystal discharging channel 202.

Example 2

Example 2 discloses a pharmaceutical centrifugal filter device modified based on example 1, and the differences of this example 2 with example 1 are not explained again, and refer to fig. 3 and 8.

In embodiment 2, a plurality of rotation connectors 303 are connected to the inner wall of the liquid collecting tank 3 in a ring-shaped array, and the number of rotation connectors 303 is not less than eight when specifically provided. A swinging rod 304 is rotatably connected in each rotating connecting piece 303, a spring 305 is connected between the swinging rod 304 and the inner wall of the liquid collecting barrel 3, then a knocking ball head 306 is connected at the end part of the swinging rod 304, and the concrete knocking ball head 306 is a stainless steel ball shell which is arranged in a hollow mode.

In this embodiment 2, by arranging the corresponding knocking mechanism inside the liquid collecting barrel 3, during the process of centrifugally filtering the crystallized liquid medicine, centrifugally filtered liquid is discharged from the filtering holes of the filtering cylinder 4, and then continuously impacts the knocking ball head 306 during the falling process, at this time, the knocking ball head 306 is inclined downward and rotated by the oscillating rod 304 against the action of the spring 305 under the impact of water flow. Once the filtering holes 402 of a certain part of the filtering cylinder 4 are blocked by the crystallization materials, the drainage quantity of the part is suddenly reduced, the knocking ball head 306 of the part is impacted by water flow to descend or disappear, and then the swinging rod 304 is rotated upwards under the action of the spring 305, so that the knocking ball head 306 impacts the filtering cylinder 4 of the part, and the crystallization materials blocked in the filtering holes 402 are vibrated down, so that the rapid dredging of the crystallization materials is realized.

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 for pharmacy, includes floor box seat and sealed dustcoat, its characterized in that, be provided with liquid collecting vat and cartridge filter in the concentric fixed of sealed dustcoat, liquid collecting vat upper end opening sets up and overlaps and establish in the cartridge filter periphery, the upper end of cartridge filter is connected with the stock guide with the crystallization material leading-in sealed dustcoat lower extreme, the lower extreme of cartridge filter is provided with the centrifugation and throws the dish with one heart, the lower extreme of centrifugation is connected with drive unit, the upper end of centrifugation is connected with the conveying subassembly that upwards carries crystallization material in the cartridge filter, liquid collecting vat and sealed dustcoat's lower surface is connected with fluid-discharge tube and row crystal channel respectively;

2. The centrifugal filter device for pharmacy according to claim 1, wherein a plurality of swinging rods are uniformly connected on the inner wall of the liquid collecting barrel in the circumferential direction, the movable end parts of the swinging rods are connected with knocking ball heads, and springs are connected between the swinging rods and the inner wall of the liquid collecting barrel.

3. The centrifugal filter device for pharmacy according to claim 1, wherein sealing bearings are arranged at the center of the bottom wall of the liquid collecting barrel and the center of the bottom wall of the filter cartridge, the driving unit comprises a rotating shaft connected with the two sealing bearings, the upper end of the rotating shaft is connected with the centrifugal throwing disc, the lower end of the rotating shaft is connected with the driven pulley, the centrifugal motor is arranged on the base, the driving pulley is arranged on the output shaft of the centrifugal motor, and a triangular belt is arranged between the driving pulley and the driven pulley.

4. The centrifugal filter device for pharmaceutical use according to claim 1, wherein the filter cartridge has an inverted circular truncated cone shape, the delivery assembly comprises a conical cylinder connected to a centrifugal slinger, and an outer circumferential surface of the conical cylinder is provided with spiral delivery vanes.

5. The centrifugal filter device for pharmacy according to claim 4, wherein the guide plate is a conical guide plate, the upper end of the conical guide plate is connected with the outer edge of the upper end of the filter cartridge, and the conical guide plate is fixedly connected with the sealing outer cover through a plurality of connecting rods.

6. The centrifugal filter device for pharmacy according to claim 1, wherein a sealing bearing is arranged on the upper surface of the centrifugal throwing disk, the lower end of the liquid inlet pipe is connected with the sealing bearing and extends into the circular inner cavity, and a control valve is connected with the upper end of the liquid inlet pipe extending out of the sealing outer cover.

7. The centrifugal filter device for pharmacy according to claim 1, wherein the lower surface of the sealing cover is provided with an annular groove in a downward concave manner, the crystal discharging channel is communicated with the annular groove, a rotary ring is concentrically arranged in the sealing cover, a scraping driving assembly for realizing rotation of the rotary ring is arranged on the sealing cover, and the inner ring of the rotary ring is connected with a scraping plate matched with the annular groove.