CN110813552B - A flat plate sedimentation type fully automatic centrifuge - Google Patents
A flat plate sedimentation type fully automatic centrifuge Download PDFInfo
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- CN110813552B CN110813552B CN201911135392.1A CN201911135392A CN110813552B CN 110813552 B CN110813552 B CN 110813552B CN 201911135392 A CN201911135392 A CN 201911135392A CN 110813552 B CN110813552 B CN 110813552B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/04—Periodical feeding or discharging; Control arrangements therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
- B04B15/06—Other accessories for centrifuges for cleaning bowls, filters, sieves, inserts, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/02—Casings; Lids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/08—Rotary bowls
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Abstract
一种平板沉降式全自动离心机，包括底板、电机、转鼓、机壳；底板下侧设有阻尼减震器；转鼓、电机均设于底板上侧，电机与转鼓皮带传动连接；机壳罩于转鼓外侧，机壳上侧设有上盖；上盖上设有防爆灯、进出料装置、刮料机构、进液管、料位探测器、观察口；观察口上设有透明材料制成的视镜；机壳位置上对应转鼓上方还设有抽液装置，进出料装置和抽液装置均包括管体、气缸壳体、复位壳体和滑动活塞，管体相对气缸壳体、复位壳体轴向往复运动；复位壳体内设有复位弹簧，在每次移动后管体受到复位弹簧的弹力作用回到初始状态，完成整个工作流程。本离心机完全自动化，一键式操作，安全性能高，易于清洗，可有效降低劳动强度，提高生产效率及药品质量。
A flat plate sedimentation type fully automatic centrifuge, including a bottom plate, a motor, a drum, and a casing; a damping shock absorber is arranged on the lower side of the bottom plate; the drum and the motor are arranged on the upper side of the bottom plate, and the motor is connected to the drum belt transmission; the casing covers the outer side of the drum, and an upper cover is arranged on the upper side of the casing; the upper cover is provided with an explosion-proof lamp, a material inlet and outlet device, a scraper mechanism, a liquid inlet pipe, a material level detector, and an observation port; a sight glass made of transparent material is arranged on the observation port; a pumping device is also arranged on the position of the casing corresponding to the upper side of the drum, and the material inlet and outlet device and the pumping device both include a tube body, a cylinder shell, a reset shell and a sliding piston, and the tube body reciprocates axially relative to the cylinder shell and the reset shell; a reset spring is arranged in the reset shell, and after each movement, the tube body is returned to the initial state by the elastic force of the reset spring, completing the entire work process. This centrifuge is fully automated, one-button operation, high safety performance, easy to clean, and can effectively reduce labor intensity, improve production efficiency and drug quality.
Description
Technical Field
The invention relates to a flat plate sedimentation type full-automatic centrifugal machine.
Background
The sedimentation centrifuge is widely applied to the field of medicine production, the existing sedimentation centrifuge has the defects of complex operation and unreasonable design, and influences on production efficiency, and the specific defects are that 1, the traditional sedimentation centrifuge is of a three-legged structure, a large number of sanitary dead angles and poor safety performance are achieved, gas in a machine body is not sealed, toxic and harmful gas cannot be effectively treated, the harm to the body of an operator is large, the requirements of GMP are not met, 2, the solid phase of the traditional sedimentation centrifuge needs to be manually scraped after centrifugation and is transferred to another container to carry out secondary dissolution processing on the solid phase material, the steps are complex, the labor intensity is high, the solid phase material is easy to remain, bacteria are bred, 3, a material baffle is arranged in a rotary drum of the traditional sedimentation centrifuge, sanitary dead space is large, the cleaning is difficult, automatic scraping, stirring and dissolution cannot be achieved after the material baffle is added, 4, the whole process of the traditional sedimentation centrifuge needs to be manually operated, 4 to 5 persons are needed to be configured, the steps are complex, the labor intensity is high, and the labor cost is high.
Disclosure of Invention
The invention aims to solve the technical problem of providing a flat plate sedimentation type full-automatic centrifugal machine, which is simple to operate and reasonable in design and can effectively improve the production efficiency.
In order to solve the technical problems, the invention provides a flat plate sedimentation type full-automatic centrifugal machine, which is characterized by comprising a bottom plate, a motor, a rotary drum and a shell;
The bottom plate is horizontally arranged, and a plurality of damping shock absorbers are arranged on the lower side of the bottom plate;
the rotary drum comprises a rotary drum body, the rotary drum body is a cylinder body which is vertically arranged and is provided with an opening at the upper side, an annular liquid blocking plate which extends horizontally inwards is arranged at the opening at the upper side of the rotary drum body, a bearing is arranged at the position of the upper side of the bottom plate, which corresponds to the center of the rotary drum, a rotating shaft is arranged on the bearing, and the upper side of the rotating shaft is coaxially connected with the rotary drum;
the motor is arranged on the upper side of the bottom plate, and an output shaft of the motor is in transmission connection with the rotating shaft through a belt;
The shell is a cylinder body with an opening upper side and is vertically arranged, the shell covers the outer side of the rotary drum, the upper side of the shell exceeds the upper side of the rotary drum, the lower side of the shell is fixedly connected with the bottom plate, and the upper side of the shell is provided with an upper cover matched with the shell;
The outer side of the shell is provided with a sealing component which comprises a hinge seat, a rotating arm and a cover opening oil cylinder, the hinge seat is fixedly connected with the upper part of the outer wall of the shell, one end of the rotating arm in the length direction is fixedly connected with the upper cover, the other end of the rotating arm in the length direction extends out of the upper cover, the middle part of the rotating arm is hinged with the hinging seat, the middle part of the rotating arm the hinging seat is hinged;
the upper cover is provided with an explosion-proof lamp, a feeding and discharging device, a scraping mechanism, a liquid inlet pipe, a material level detector and an observation port;
The explosion-proof lamp is arranged on the upper side of the upper cover, and the lower side of the explosion-proof lamp is communicated with the inner side of the shell;
The feeding and discharging device comprises a feeding and discharging pipe, a first air cylinder shell, a first reset shell and a first sliding piston which are vertically arranged, wherein the first air cylinder shell and the first reset shell are arranged up and down, the first air cylinder shell and the first reset shell are fixedly connected through a first guide disc, and the outer side of the middle part of the first reset shell is fixedly connected with the upper cover; the first cylinder shell and the first guide plate form a closed first cylinder cavity, the first reset shell and the first guide plate form a closed first reset cavity, the feeding pipe sequentially penetrates through the first cylinder shell, the first guide plate and the first reset shell along the vertical direction, the upper side and the lower side of the feeding pipe respectively exceed the upper side of the first cylinder shell and the lower side of the first reset shell correspondingly, the lower side of the feeding pipe stretches into the rotary drum, the feeding pipe can reciprocate along the vertical direction relative to the first cylinder shell, the first guide plate and the first reset shell, the first sliding piston is sleeved on the outer wall of the feeding pipe, the first sliding piston is positioned in the first cylinder cavity, the first sliding piston divides the first cylinder cavity into a first cavity and a second cavity which are mutually independent, and the first cylinder shell is respectively provided with a first air hole communicated with the first cavity and the second cavity;
The scraper shaft is arranged in the shell, the middle part of the shell is fixedly connected with the upper cover of the centrifugal machine, the lower end of the scraper shaft extends out of the lower side of the shell vertically and into the rotary drum, the scraper plate at the lower end of the scraper shaft is a vertically arranged rectangular plate, one side of the scraper plate in the length direction is connected to the lower part of the scraper shaft, a plurality of through grooves which are arranged at intervals along the length direction of the scraper plate are arranged at the lower side of the scraper plate, an L-shaped rod is arranged above each through groove at one side of the scraper plate in the length direction, the L-shaped rod consists of a horizontal part and a vertical part which are connected end to end, one side of the horizontal part, which is far away from the vertical part, in the length direction is vertically downwards extended, the lower side of the vertical part, is flush with the lower side of the scraper plate, the scraper shaft comprises a lifting cylinder and a rotating assembly, the scraper plate is connected with the lower part of the lifting cylinder body, the rotating assembly comprises a rotating cavity, a gear sleeve, a rack and two pistons, the rack and the two pistons are respectively arranged in the rotating cavity, the two pistons are respectively fixed at two sides of the two side walls of the two independent racks, and the two side walls of the two pistons are respectively sleeved with the two racks, and the two side walls of the two pistons are respectively rotate in the same cavity;
The liquid inlet pipe is vertically arranged, the middle part of the liquid inlet pipe in the length direction is fixedly connected with the upper cover, and the lower side of the liquid inlet pipe extends into the rotary drum from the upper side of the rotary drum;
The material level detector comprises a connecting rod and a detecting plate, the connecting rod is vertically arranged, the middle part of the connecting rod is fixedly connected with the upper cover, the lower side of the connecting rod extends into the rotary drum from the upper side of the rotary drum, and the detecting plate is connected with the lower side of the connecting rod;
the observation port penetrates through the upper cover, and a sight glass made of transparent materials is arranged on the observation port;
The liquid extracting device is arranged above the corresponding rotary drum at the shell position and comprises a liquid extracting pipe, a second cylinder shell, a second reset shell and a second sliding piston which are horizontally arranged, the liquid extracting pipe is radially arranged along the rotary drum along the length direction, the liquid extracting device is arranged inside one side, which is radially close to the central axis of the rotary drum, and outside one side, which is far away from the central axis of the rotary drum, the second cylinder shell is arranged inside and outside the second reset shell, the second cylinder shell is fixedly connected with the second reset shell through a second guide disc, and the outside of the middle part of the second reset shell is fixedly connected with the shell; the second cylinder shell and the second guide disc form a closed second cylinder cavity, the second reset shell and the second guide disc form a closed second reset cavity, the liquid taking pipe sequentially penetrates through the second cylinder shell, the second guide disc and the second reset shell along the vertical direction, the front side and the rear side of the liquid taking pipe respectively exceed the front side of the second cylinder shell and the rear side of the second reset shell correspondingly, the inner side of the liquid taking pipe stretches into the rotary drum and bends downwards by 180 degrees to be opposite to the side wall of the rotary drum, the pipe orifice of the liquid taking pipe is a round head, liquid taking holes are arranged on the two sides of the round head, the liquid taking pipe can reciprocate along the horizontal direction relative to the second cylinder shell, the second guide disc and the second reset shell, a second sliding piston is sleeved on the outer wall of the liquid taking pipe and is positioned in the second cylinder cavity, the second sliding piston divides the second cylinder cavity into a third cavity and a fourth cavity which are mutually independent, second air holes communicated with the third cavity and the fourth cavity are respectively arranged on the second cylinder shell, a second fixing convex ring is also arranged on the outer wall of the liquid taking pipe, the second fixing convex ring is positioned in the second reset spring sleeve, the second reset cavity is positioned on the outer wall of the second reset spring sleeve, one end of the second reset spring is abutted against the inner side face of the second fixing convex ring, and the other end is abutted against the inner side wall of the second reset cavity.
For the sake of simple explanation, the plate sedimentation type full-automatic centrifuge according to the present invention will be hereinafter simply referred to as the present centrifuge.
The working flow and the internal principle of the centrifugal machine are that firstly, a material to be centrifuged is injected into a rotary drum through a material inlet and outlet pipe for centrifugal operation, layering phenomenon occurs between a liquid phase and a solid phase due to the action of centrifugal force, then liquid is pumped through an automatically controlled liquid pumping device, a third chamber and a fourth chamber of a second cylinder cavity are respectively connected with a high-pressure air source, the pressure in the third chamber and the pressure in the fourth chamber are changed, a second sliding piston drives the whole liquid taking pipe to axially move, the inner side port of the liquid taking pipe gradually approaches to the liquid material rotating at high speed in the rotary drum, and the liquid phase is pumped out from the inner side end of the liquid taking pipe in the liquid pumping process, so that liquid pumping operation is completed; the liquid phase is extracted by the liquid extracting device, the residual solid phase materials are adhered to the inner wall of the rotary drum of the centrifugal machine, at the moment, the rotating assembly controls the scraping plates to rotate to be close to the inner wall of the rotary drum by changing the pressure of two oil pumps, the rotating assembly stops precession when the rotating assembly is 8-10mm away from the inner wall of the rotary drum, the rotary drum is kept to rotate at a low speed, the scraping plates are controlled to gradually move downwards along with the rotary lifting cylinder of the rotary drum, the materials attached to the inner wall of the rotary drum are scraped from top to bottom in sequence, after the scraping is completed, the scraping plates are reset, the rotary drum stops running, at the moment, the solvent for dissolving the solid phase materials is added into the rotary drum through the liquid inlet pipe, then the rotary drum motor is started, the scraping plates precess to the position 8-10mm away from the inner wall of the rotary drum again, at the moment, the scraping plates with through grooves are equivalent to one material, the solid phase materials with different liquid levels are crushed and stirred, the solid phase materials are crushed and stirred for dissolution until dissolution is completed.
When the scraping plate moves to the lowest side of the rotary drum, the rotary drum stops rotating, the scraping is completed, solvent for dissolving solid-phase materials is introduced into the rotary drum through the liquid inlet pipe, then the rotary drum motor is started again, the scraping plate with the through groove is equivalent to a rake and plays roles in crushing and stirring and dissolving the solid-phase materials until the solid-phase materials are dissolved, finally the solvent for dissolving the solid-phase materials is pumped out through the automatic control feeding and discharging device, a first chamber and a second chamber of a first cylinder cavity are respectively connected with a high-pressure air source, the pressure intensity in the first chamber and the pressure intensity in the second chamber are changed, the first sliding piston drives the whole feeding and discharging pipe to axially move, the lower side port of the feeding and discharging pipe downwards moves to the bottom of the rotary drum to perform material pumping, the first return spring is matched with a first fixed convex ring of the feeding and discharging pipe, and the feeding and discharging pipe is enabled to operate more stably under the elastic action of the first return spring after each movement.
The centrifugal machine has the advantages that 1, the horizontal bottom plate of the centrifugal machine replaces a tripod structure in the prior art, so that the supporting structure of the centrifugal machine is easy to clean, the weight of the bottom plate accounts for 20% -30% of the total weight of the centrifugal machine, and resonance can be reduced to the greatest extent; 2, the material inlet and outlet pipe is arranged on the upper cover in cooperation with the supporting structure of the centrifugal machine, and the lower end of the material inlet and outlet pipe directly extends into the rotary drum, so that the material distribution mode of the centrifugal machine is changed from traditional manual material feeding to full-automatic intermediate material feeding, and the material distribution is more uniform; the automatic liquid pumping device is simple in operation, saves labor, and the liquid taking pipe can adjust the position, so that the centrifugal operation of the centrifugal machine is not influenced during normal use, and the liquid pumping operation requirement after the centrifugal operation can be met, the rotary drum is provided with an embedded liquid blocking plate, is simple in processing, attractive in appearance, easy to clean, eliminates a dead angle of sanitation, realizes automatic discharging, 5, a scraping mechanism automatically scrapes materials, and directly breaks and stirs and dissolves solid-phase materials in the rotary drum after scraping, does not need to transfer the materials, can simplify the operation steps, improve the efficiency and reduce the cost, simultaneously, due to the arrangement of the liquid guiding plate, the solid-phase materials which are adhered on the inner wall of the rotary drum and cannot be scraped can be washed down, the scraping effect is improved, and 6, the operation process is completely and fully automated, one-key operation greatly reduces the labor intensity and the operation difficulty, greatly saves the labor cost, 7, the whole process is highly airtight, the contact of manual and other pollution sources is avoided, the quality of medicines is ensured, simultaneously, the toxic and harmful gases are intensively processed, the centrifugal machine is safer and more environment-friendly, and the centrifugal machine is simple in operation and reasonable in design, can effectively improve the production efficiency.
In order to achieve better use effect of the centrifugal machine, the preferable scheme is as follows:
preferably, the lower side of the feeding and discharging pipe is provided with a first elbow which is obliquely arranged.
The first elbow of business turn over material pipe downside can play certain water conservancy diversion effect, prevents that liquid from splashing during the feeding, and first elbow also can the slant be pressed close to the rotary drum bottom during the ejection of compact, and the ejection of compact is more complete.
Preferably, the upper side of the scraping plate is provided with a strip-shaped liquid guide plate, the length direction of the liquid guide plate is consistent with that of the scraping plate, two sides of the length direction of the liquid guide plate are respectively corresponding to the two sides of the length direction of the scraping plate, one end, close to the scraping knife shaft, of the length direction of the liquid guide plate is inclined to one side, far away from the L-shaped rod, of the length direction of the liquid guide plate, and one end, far away from the scraping knife shaft, of the length direction of the liquid guide plate is inclined to one side, close to the L-shaped rod.
The solvent rotates along with the rotary drum in the rotary drum, the liquid in motion impacts the scraping plate and can be excited to splash upwards along the scraping plate, and the liquid guide plate which is obliquely arranged is matched with the centrifugal force formed by the rotary drum to guide the liquid which splashes upwards to the inner wall of the rotary drum, so that the effect of flushing the inner wall of the rotary drum is achieved, and the solid-phase material which is attached to the inner wall of the rotary drum and cannot be scraped can be flushed down.
Preferably, the lower side of the vertical part is provided with taper, and the lower side of the scraping plate and one side of the length direction of the scraping plate, which is far away from the lifting cylinder, are provided with slopes.
The solid phase material after the centrifugation is hard relatively, set up the slope and be equivalent to a blade on the scraping plate, can be convenient for scrape the material in the scraping plate inserts the solid phase material, the tapering of vertical downside is convenient for insert in the solid phase material, can be more easy with the solid phase material breakage to dissolve with higher speed.
Preferably, the lower side of the liquid inlet pipe is provided with a second elbow which is obliquely arranged.
The second elbow of feed liquor pipe downside can play certain water conservancy diversion effect, prevents liquid splash when the feed liquor.
Preferably, a water channel which is circumferentially arranged is further arranged above the upper cover, the water channel is in a shape of a ring, a water inlet is formed in the upper side of the water channel, a plurality of vertically arranged water outlet pipes are arranged on the lower side of the circular arc-shaped water channel, the lower side of the water outlet pipe penetrates through the upper cover from top to bottom, and a spherical spray head is arranged on the lower side of each water outlet pipe.
The water channel and the corresponding spherical spray head can spray and clean the inside of the centrifugal machine, so that the centrifugal machine is convenient to use and saves manpower.
Drawings
Fig. 1 is a schematic diagram of the structure of the present centrifuge.
Fig. 2 is a top view of the present centrifuge.
Fig. 3 is a schematic structural view of the scraping mechanism of the centrifugal machine.
Fig. 4 is a top view of the scraping mechanism of the centrifuge.
Fig. 5 is a schematic structural view of a scraping plate in the scraping mechanism of the centrifuge.
Fig. 6 is a schematic structural diagram of the liquid pumping device of the centrifuge.
Fig. 7 is a schematic structural diagram of the feeding and discharging device of the centrifuge.
Detailed Description
Referring to fig. 1-7, fig. 1 and 2 are only schematic as the overall structure of the centrifuge, wherein the detailed structures of the scraping mechanism, the liquid pumping device and the feeding and discharging device are based on fig. 3-7.
A plate sedimentation type full-automatic centrifugal machine comprises a bottom plate 1, a motor 2, a rotary drum 3 and a machine shell 4;
The bottom plate 1 is horizontally arranged, and a plurality of damping shock absorbers 11 are arranged on the lower side of the bottom plate 1;
The rotary drum 3 comprises a rotary drum body 31, the rotary drum body 31 is a cylinder body which is vertically arranged and is open at the upper side, an annular liquid blocking plate 32 which extends horizontally inwards is arranged at the open position at the upper side of the rotary drum body 31, a bearing 12 is arranged at the position of the bottom plate 1 at the upper side and corresponds to the center of the rotary drum 3, a rotating shaft 13 is arranged on the bearing 12, and the upper side of the rotating shaft 13 is coaxially connected with the rotary drum 3;
the motor 2 is arranged on the upper side of the bottom plate 1, and an output shaft of the motor 2 is in transmission connection with the rotating shaft 13 through a belt 14;
the shell 4 is a cylinder body with an opening upper side and is vertically arranged, the shell 4 covers the outer side of the rotary drum 3, the upper side of the shell 4 exceeds the upper side of the rotary drum 3, the lower side of the shell 4 is fixedly connected with the bottom plate 1, and an upper cover 41 matched with the shell 4 is arranged on the upper side of the shell 4;
The outer side of the shell 4 is provided with a sealing component, the sealing component comprises a hinge seat 42, a rotating arm 44 and a cover opening oil cylinder 43, the hinge seat 42 is fixedly connected to the upper part of the outer wall of the shell 4, one end of the rotating arm 44 in the length direction is fixedly connected with the upper cover 41, the other end of the rotating arm 44 in the length direction extends out of the upper cover 41, the middle part of the rotating arm 44 is hinged with the hinge seat 42, the other end of the rotating arm 44 is hinged with a piston rod of the cover opening oil cylinder 43, and the bottom of the cover opening oil cylinder 43 is hinged with the bottom plate 1;
the upper cover 41 is provided with an explosion-proof lamp 411, a feeding and discharging device 5, a scraping mechanism 6, a liquid inlet pipe 7, a material level detector 8 and an observation port;
the explosion-proof lamp 411 is arranged on the upper side of the upper cover 41, and the lower side of the explosion-proof lamp 411 is communicated with the inner side of the shell 4;
the feeding and discharging device 5 comprises a feeding and discharging pipe 51, a first cylinder shell 52, a first reset shell 53 and a first sliding piston 521 which are vertically arranged, wherein the first cylinder shell 52 and the first reset shell 53 are arranged up and down, the first cylinder shell 52 and the first reset shell 53 are fixedly connected through a first guide disc 54, and the outer side of the middle part of the first reset shell 53 is fixedly connected with the upper cover 41; the first cylinder housing 52 and the first guide disc 54 form a closed first cylinder cavity 522, the first reset housing 53 and the first guide disc 54 form a closed first reset cavity 531, the feed-in and feed-out pipe 51 vertically sequentially penetrates through the first cylinder housing 52, the first guide disc 54 and the first reset housing 53, the upper side and the lower side of the feed-in and feed-out pipe 51 respectively exceed the upper side of the first cylinder housing 52 and the lower side of the first reset housing 53, the lower side of the feed-in and feed-out pipe 51 extends into the rotary drum 3, the lower side of the feed-in and feed-out pipe 51 is provided with a first elbow 511 which is obliquely arranged, the feed-in and feed-out pipe 51 can vertically reciprocate relative to the first cylinder housing 52, the first guide disc 54 and the first reset housing 53, a first sliding piston 521 is sleeved on the outer wall of the feed-in pipe 51, the first sliding piston 521 is positioned in the first cylinder cavity 522, the first sliding piston 521 separates the first cylinder cavity 522 into a first cavity 523 and a second cavity 524 which are mutually independent, the upper side of the first cylinder housing 52 is respectively provided with a first cavity 533 and a second cavity 524 which are respectively communicated with the upper side of the first cavity 533 and the second cavity 524, the lower side of the first cylinder housing 53 is provided with a first return ring 532, a first return ring 532 is also fixedly sleeved on the first end of the first reset ring 532, and a first reset ring 532 is fixedly sleeved on the first end of the first return ring 532, and a first end 532 is fixedly sleeved on the first return ring 532, and a first end ring 532, and a lower end ring is fixedly arranged on the upper end ring, and a return ring, and upper ring, and a return ring, and, the other end is abutted against the lower side wall of the first reset cavity 531;
The scraping mechanism 6 comprises a shell 61, scraping plates 62 and scraping shafts 63, wherein the scraping shafts 63 are arranged in the shell 61, the middle of the shell 61 is fixedly connected with an upper cover 41 of the centrifugal machine, one side of each scraping shaft extending out of the lower side of the shell 61 and extending into the rotary drum 3 vertically, the scraping plates 62 at the lower ends of the scraping shafts 63 are vertically arranged rectangular plates, one side of each scraping plate 62 in the length direction is connected to the lower portion of each scraping shaft 63, a plurality of through grooves 622 are formed in the lower side of each scraping plate 62 at intervals along the length direction, an L-shaped rod 62 is arranged above each through groove 622 at one side of each scraping plate 62 in the thickness direction, each L-shaped rod 62 is composed of a horizontal portion 651 and a vertical portion 652 which are connected end to end, one side of each horizontal portion 651 away from each vertical portion 652 in the length direction is connected with each scraping plate 62, one side of each vertical portion 652 in the length direction extends vertically downwards, the lower side of each vertical portion 652 in the length direction away from each horizontal portion 651 is connected with the lower side of each scraping plate 62, the lower side of each vertical portion 652 is provided with a taper cylinder 631, and one side of each lower side of each scraping plate 62 is away from the lifting cylinder 631 in the length direction. The upper side of the scraping plate 62 is provided with a strip-shaped liquid guide plate 621, the length direction of the liquid guide plate 621 is consistent with that of the scraping plate 62, two sides of the length direction of the liquid guide plate 621 are respectively corresponding to the two sides of the length direction of the scraping plate 62, one end, close to the scraping knife shaft 63, of the length direction of the liquid guide plate 621 is inclined to one side, far away from the L-shaped rod 62, of the length direction of the liquid guide plate 621, and one end, far away from the scraping knife shaft 63, of the length direction of the liquid guide plate 621 is inclined to one side, close to the L-shaped rod 62. The scraper shaft 63 includes a lift cylinder 631 and a rotating assembly 64, the scraper 62 is connected to the lower part of the cylinder body of the lift cylinder 631, the rotating assembly 64 includes a rotating chamber 641, a gear sleeve 642, a rack 643 and two pistons 644, the rack 643 and the two pistons 644 are both located in the rotating chamber 641, the two pistons 644 are respectively fixed at two sides of the rack 643, the two pistons 644 divide the two sides of the rotating chamber 641 into two independent oil chambers, two ends of the rotating chamber 641 are respectively provided with oil port connectors 645 identical to the two oil chambers, the gear sleeve 642 is sleeved on the side wall of the cylinder body of the lift cylinder 631, and the gear sleeve 642 is matched with the rack 643;
the liquid inlet pipe 7 is vertically arranged, the middle part of the length direction of the liquid inlet pipe 7 is fixedly connected with the upper cover 41, the lower side of the liquid inlet pipe 7 extends into the rotary drum 3 from the upper side of the rotary drum 3, and the lower side of the liquid inlet pipe 7 is provided with a second elbow 71 which is obliquely arranged;
The material level detector 8 comprises a connecting rod 81 and a detecting plate 82, wherein the connecting rod 81 is vertically arranged, the middle part of the connecting rod 81 is fixedly connected with the upper cover 41, the lower side of the connecting rod 81 extends into the rotary drum 3 from the upper side of the rotary drum 3, and the detecting plate 82 is connected with the lower side of the connecting rod 81;
The observation port penetrates through the upper cover 41, and a sight glass 412 made of transparent materials is arranged on the observation port;
The machine shell 4 is provided with a liquid extracting device 9 above the corresponding rotary drum 3, the liquid extracting device 9 comprises a liquid extracting pipe 91, a second cylinder shell 92, a second reset shell 93 and a second sliding piston 921 which are horizontally arranged, the length direction of the liquid extracting pipe 91 extends along the radial direction of the rotary drum 3, the liquid extracting device 9 is arranged inside one side, which is radially close to the central axis of the rotary drum 3, and outside one side, which is far away from the central axis of the rotary drum 3, the second cylinder shell 92 and the second reset shell 93 are internally and externally arranged, the second cylinder shell 92 and the second reset shell 93 are fixedly connected through a second guide disc 94, and the outer side of the middle part of the second reset shell 93 is fixedly connected with the machine shell 4; the second cylinder shell 92 and the second guide disc 94 form a closed second cylinder cavity 922, the second reset shell 93 and the second guide disc 94 form a closed second reset cavity 931, the liquid taking pipe 91 sequentially penetrates through the second cylinder shell 92, the second guide disc 94 and the second reset shell 93 along the vertical direction, the front side and the rear side of the liquid taking pipe 91 respectively extend beyond the front side of the second cylinder shell 92 and the rear side of the second reset shell 93 correspondingly, the inner side of the liquid taking pipe 91 extends into the rotary drum 3 and is bent downwards for 180 degrees to be opposite to the side wall of the rotary drum 3, the mouth of the liquid taking pipe 91 is a round head, liquid taking holes 911 are formed in the two sides of the round head, the liquid taking pipe 91 can reciprocate horizontally relative to the second cylinder shell 92, the second guide disc 94 and the second reset shell 93, the second sliding piston 921 is sleeved on the outer wall of the liquid taking pipe 91, the second sliding piston 921 is positioned in the second cylinder cavity 922, the second sliding piston 921 separates the second cylinder cavity 922 into a third chamber 923 and a fourth chamber 924 which are mutually independent, the second cylinder shell 92 is provided with second air holes communicated with the third chamber 923 and the fourth chamber 924 respectively, the outer wall of the liquid taking pipe 91 is also provided with a second fixed convex ring 932, the second fixed convex ring 932 is positioned in the second reset cavity 931, the outer wall of the liquid taking pipe 91 is also sleeved with a second reset spring 933, one end of the second reset spring 933 is abutted against the inner side surface of the second fixed convex ring 932, and the other end is abutted against the inner side wall of the second reset cavity 931.
The upper cover 41 top still be equipped with a water course 45 that circumference was arranged, water course 45 be the most half ring form, water course 45 upside be equipped with water inlet 451, convex water course 45 downside is equipped with a plurality of outlet pipes 452 of vertical arrangement, outlet pipe 452 downside pass upper cover 41 from top to bottom, and every outlet pipe 452 downside all is equipped with a spherical shower nozzle 453.
The working flow and the internal principle of the centrifuge are that firstly, a material to be centrifuged is injected into a rotary drum 3 through a material inlet and outlet pipe 51 to carry out centrifugal operation, layering phenomenon occurs between liquid phase and solid phase due to the action of centrifugal force, then liquid is pumped through an automatically controlled liquid pumping device 9, a third chamber 923 and a fourth chamber 924 of a second cylinder cavity 922 are respectively connected with a high-pressure air source, the pressure in the third chamber 923 and the fourth chamber 924 is changed, a second sliding piston 921 drives the whole liquid taking pipe 91 to axially move, the inner side port of the liquid taking pipe 91 gradually approaches to the liquid material rotating at high speed in the rotary drum 3, and the liquid phase is pumped out through the movement of the inner side end of the liquid taking pipe 91 from inside to outside in the liquid pumping process, so that the liquid pumping operation is completed; the second return spring 933 cooperates with the second fixed convex ring 932 of the liquid taking tube 91 to provide an inward restoring force for the liquid taking tube 91, the liquid taking tube 91 is more stable under the action of the elastic force of the second return spring 933 when moving each time, the solid phase material remained after being extracted by the liquid extracting device 9 is stuck on the inner wall of the centrifuge drum 3, the two oil port joints 645 of the rotating assembly 64 are respectively connected with the oil pump, the rotating assembly 64 controls the scraping plate 62 to rotate close to the inner wall of the drum 3 by changing the pressure of the two oil pumps, the rotating assembly 64 stops screwing when being 8-10mm away from the inner wall of the drum 3, keeps the drum 3 to rotate at a low speed, the lifting cylinder 631 controls the scraping plate 62 to gradually move downwards along with the rotation of the drum 3, the material attached to the inner wall of the drum 3 is scraped off sequentially from top to bottom, the scraping plate 62 resets after the scraping is completed, the drum 3 stops running, the solvent for dissolving the solid phase material is added into the drum 3 through the liquid inlet tube 7, then the motor 2 is started, the scraping plate 62 is screwed into the drum 3 again to be 8-10mm away from the inner wall of the drum 3, slowly descends to the lowest side of the rotary drum 3 and reciprocates up and down on the liquid level, at the moment, the scraping plate 62 provided with the through groove 622 is equivalent to a rake, and the solid phase materials with different liquid levels are crushed and then stirred, so that the solid phase materials are crushed, stirred and dissolved until the dissolution is completed. Finally, the solvent which dissolves the solid phase material is pumped out through the automatically controlled feeding and discharging device 5, the first chamber 523 and the second chamber 524 of the first cylinder cavity 522 are respectively connected with a high-pressure air source, the first sliding piston 521 drives the whole feeding and discharging pipe 51 to axially move by changing the pressure intensity in the first chamber 523 and the second chamber 524, the lower side port of the feeding and discharging pipe 51 moves downwards to the bottom of the rotary drum 3 to pump the material, the first return spring 533 is matched with the first fixed convex ring 532 of the feeding and discharging pipe 51 to provide an upward return force for the feeding and discharging pipe 51, and the feeding and discharging pipe 51 is enabled to operate more stably under the elastic action of the first return spring 533 after each movement.
The centrifugal machine has the advantages that 1, the horizontal bottom plate 1 replaces a tripod structure in the prior art, so that the supporting structure of the centrifugal machine is easy to clean, the weight of the bottom plate 1 accounts for 20% -30% of the total weight of the centrifugal machine, and resonance can be reduced to the greatest extent; 2, in cooperation with the support structure of the centrifuge, the material inlet and outlet pipe 51 is arranged on the upper cover 41, and the lower end of the material inlet and outlet pipe 51 directly extends into the rotary drum 3, so that the material distribution mode of the centrifuge is changed from traditional manual material feeding to full-automatic middle material feeding, and the material distribution is more uniform; the automatic liquid extracting device 9 is simple to operate, saves labor, and the liquid extracting pipe 91 can adjust the position, so that the centrifugal operation of the centrifugal machine is not influenced during normal use, and the liquid extracting operation requirement after the centrifugal operation can be met, 4, the rotary drum 3 adopts the embedded liquid blocking plate 32, is simple to process, attractive in appearance and easy to clean, eliminates the baffle plate structure, eliminates the sanitary dead angle, realizes automatic discharging, 5, the scraping mechanism 6 automatically performs scraping operation, directly breaks and stirs and dissolves solid-phase materials in the rotary drum 3 after scraping, does not need to transfer the materials, can simplify the operation steps, improve the efficiency and reduce the cost, meanwhile, due to the arrangement of the liquid guiding plate 621, the solid-phase materials which cannot be scraped on the inner wall of the rotary drum 3 can be washed down, the scraping effect is improved, 6, the whole operation process is fully automated, the one-key operation greatly reduces the labor intensity and the operation difficulty, greatly saves the labor cost, 7, the whole process is highly airtight, avoids the contact of manpower and other pollution sources, ensures the quality and simultaneously, and the centralized treatment of toxic and harmful gases, is safer and environment-friendly, and simpler to operate the centrifugal machine, reasonable in design can effectively improve production efficiency.
The first elbow 511 of business turn over material 51 downside can play certain water conservancy diversion effect, prevents that liquid from splashing during the feeding, and first elbow 511 also can the slant be pressed close to the rotary drum 3 bottom during the ejection of compact, and the ejection of compact is more complete.
The solvent rotates along with the rotary drum 3 in the rotary drum 3, the liquid in motion impacts the scraping plate 62 and can be stirred up along the scraping plate 62 to splash upwards, and the liquid guide plate 621 which is obliquely arranged guides the liquid which splashes upwards to the inner wall of the rotary drum 3 by matching with the centrifugal force formed by the rotary drum 3, so that the liquid can wash the inner wall of the rotary drum 3, and solid-phase materials which are adhered to the inner wall of the rotary drum 3 and cannot be scraped can be washed down.
The solid phase material after the centrifugation is relatively hard, sets up the slope and is equivalent to a blade on the scraping plate 62, can be convenient for scrape the material in scraping the material in the solid phase material, and the tapering of vertical portion 652 downside is convenient for insert in the solid phase material, can be more easy with the solid phase material breakage to dissolve with higher speed.
The second elbow 71 at the lower side of the liquid inlet pipe 7 can play a certain role in guiding flow, so that liquid splashing during liquid inlet is prevented.
The water channel 45 and the corresponding spherical spray heads 453 can spray and clean the inside of the centrifugal machine, so that the centrifugal machine is convenient to use and labor-saving.
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| CN113289770B (en) * | 2021-04-30 | 2022-06-28 | 江西省全鑫科技有限公司 | Desk type high-speed refrigerated centrifuge based on alternating current variable frequency motor drive and method thereof |
| CN115415062B (en) * | 2022-09-27 | 2025-06-17 | 蚌埠精工制药机械有限公司 | A mechanical flip-cover centrifuge and its scraper assembly |
| CN118385042B (en) * | 2024-06-27 | 2024-09-20 | 味滋美(江苏)食品有限公司 | Food additive filters centrifugal device |
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