CN117299523B - Screening equipment and screening method for traditional Chinese medicinal materials - Google Patents
Screening equipment and screening method for traditional Chinese medicinal materials Download PDFInfo
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- CN117299523B CN117299523B CN202311620470.3A CN202311620470A CN117299523B CN 117299523 B CN117299523 B CN 117299523B CN 202311620470 A CN202311620470 A CN 202311620470A CN 117299523 B CN117299523 B CN 117299523B
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- 239000000463 material Substances 0.000 title claims abstract description 86
- 238000012216 screening Methods 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000012535 impurity Substances 0.000 claims abstract description 39
- 238000007599 discharging Methods 0.000 claims description 13
- 239000000428 dust Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 241000411851 herbal medicine Species 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 7
- 238000005507 spraying Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 208000001840 Dandruff Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/08—Screens rotating within their own plane
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J3/00—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/55—Cleaning with fluid jets
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model discloses screening equipment and a screening method for traditional Chinese medicinal materials, and belongs to the technical field of material screening, wherein the screening equipment for the traditional Chinese medicinal materials comprises a machine shell, a feeding cylinder is arranged in the machine shell, the lower end of the feeding cylinder is fixedly connected with a bearing block, a blanking hole is formed in the bearing block, the lower surface of the bearing block is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first rotating shaft, the first rotating shaft is fixedly connected with a first gear, the first gear is meshed with a plurality of second gears, the second gears are distributed at equal intervals relative to the first gear in an annular mode, the middle parts of the second gears are fixedly connected with second rotating shafts, the upper ends of the second rotating shafts are rotatably connected to the lower surface of the bearing block, the lower ends of the second rotating shafts are fixedly connected with round screening discs, and the lower ends of the first rotating shafts are fixedly connected with connecting rods. The utility model can rapidly screen the impurities with the size smaller than the material, screen the impurities with the size larger than the material, or screen the material in a grading way according to the size.
Description
Technical Field
The utility model belongs to the technical field of screening, and particularly relates to screening equipment and a screening method for traditional Chinese medicinal materials.
Background
The screening of the Chinese medicinal materials refers to the process of classifying and screening fresh or dried Chinese medicinal materials. The purpose is to remove impurities, fibers and other non-medicinal parts and retain effective medicinal components. Common screening methods include manual screening, mechanical screening, and air flow screening. In the screening process, the Chinese medicinal materials can be classified, sorted and separated according to different requirements and standards, so that the quality and purity of the Chinese medicinal materials can be improved.
Chinese patent (publication No. CN211914592U, publication No. 2020-11-13) discloses a novel traditional Chinese medicine screening machine, which comprises a machine body, a feed hopper, a dust collecting component, an anti-dandruff component and supporting legs, wherein the machine body is arranged in a rectangular hollow cavity, the feed hopper is fixedly connected with the upper wall of the machine body, the dust collecting component and the anti-dandruff component are arranged in the machine body from top to bottom, and the supporting legs are fixedly connected with the lower wall of the machine body. The utility model belongs to the technical field of traditional Chinese medicine processing, and particularly provides a novel traditional Chinese medicine screening machine which is novel in structure, simple to operate, high in working efficiency and long in service life, and can remove dust and scraps.
The problems with this prior art are: when mechanical screening, the method is inconvenient to carry out primary screening rapidly, impurities with the size smaller than that of the materials are screened out, then secondary screening is carried out, impurities with the size larger than that of the materials are screened out, or the materials are screened in a grading manner according to the size.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides screening equipment for traditional Chinese medicinal materials, which has the advantage of multistage screening, and solves the problems that in the prior art, when mechanical screening is performed, primary screening is inconvenient to perform rapidly, impurities with the size smaller than that of materials are screened out, then secondary screening is performed, impurities with the size larger than that of the materials are screened out, or the materials are screened in a grading manner according to the size.
The utility model is realized in such a way, the screening equipment of Chinese herbal medicine comprises a casing, a feeding cylinder is arranged in the casing, the lower end of the feeding cylinder is fixedly connected with a bearing block, a blanking hole is arranged on the bearing block, the lower surface of the bearing block is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first rotating shaft, a first gear is fixedly connected with the first rotating shaft, a plurality of second gears are meshed with the first gear, the plurality of second gears are distributed at equal intervals in a ring shape relative to the first gear, the middle parts of the second gears are fixedly connected with second rotating shafts, the upper ends of the second rotating shafts are rotatably connected with the lower surface of the bearing block, the lower ends of the second rotating shafts are fixedly connected with round screening discs, the lower ends of the first rotating shafts are fixedly connected with connecting rods, one ends of the connecting rods, which are far away from the first rotating shafts, are fixedly connected with annular screening discs, and the annular screening discs are positioned below the round screening discs; the impurity discharging cylinder is arranged at the lower side of the inner ring of the annular screen disc; the side wall of the shell is provided with a first outlet which is aligned with the annular screen disc; the lower side of the shell is provided with a second opening.
As the preferable mode of the utility model, the lower end of the impurity discharging cylinder is communicated with a dust suction pump, the side wall of the impurity discharging cylinder is communicated with a communicating pipe, and the communicating pipe is provided with a first through hole.
As the preferable mode of the utility model, the second rotating shaft is sleeved with the fixed sleeve, and an annular blanking channel is arranged between the fixed sleeve and the second rotating shaft.
As the preferable mode of the utility model, the first rotating shaft is rotationally connected with a first limiting plate, the side wall of the first limiting plate is an arc-shaped side wall, and the side wall of the first limiting plate is attached to the edge of the round sieve tray;
the screening equipment of chinese-medicinal material still includes the second limiting plate, and the shape of second limiting plate lateral wall is circular, and the shape of second limiting plate inside wall is the arc, and the edge laminating of second limiting plate inside wall and round screen tray.
As the preferable choice of the utility model, the underside of the bearing block is provided with a containing groove, the upper end of the second rotating shaft is rotatably arranged in the containing groove;
the fixed sleeve is provided with annular grooves, and the heights of the annular grooves are at least partially different;
the lower surface of the bearing block is fixedly connected with an L-shaped limiting rod, and the end part of the L-shaped limiting rod is inserted into the annular groove.
Preferably, the casing is provided with a support roller arranged transversely, and the upper side of the support roller is attached to the lower side of the annular screen disc.
As the preferable mode of the utility model, a second gas channel is arranged in the supporting roller, and one end of the second gas channel is communicated with an air pump;
the outer peripheral surface elasticity grafting of backing roll has the pipeline, and the pipeline is close to the one end of backing roll and seals, and the intercommunicating pore has been seted up to the lateral wall downside of pipeline, and when the pipeline was extruded, intercommunicating pore and second gas passage intercommunication, when the pipeline was not extruded, intercommunicating pore and backing roll laminating, the sieve mesh of annular sieve tray can be run through to the upper end of pipeline, and is equipped with the briquetting on the outer peripheral surface of pipeline, is equipped with elastic reset piece between briquetting and the downside of backing roll.
As the preferable mode of the utility model, the second limiting plate is internally provided with a cavity, and the inner ring of the second limiting plate is provided with an air injection hole communicated with the cavity;
the second gas passage communicates with the cavity through the connector.
When the circular screen tray is used, on one hand, gas in the channel can enter the cavity and be sprayed out from the gas spraying holes, and the gas spraying holes can blow materials on the circular screen tray, so that the screening effect is improved. On the other hand, water can be sprayed to clean the round sieve tray.
As the preferable mode of the utility model, the first motor is a double-headed motor, the other output end of the first motor is fixedly connected with a third rotating shaft, the third rotating shaft extends into the feeding cylinder, the peripheral surface of the third rotating shaft is provided with a spiral blade in a surrounding manner, and the edge of the spiral blade is attached to the inner wall of the feeding cylinder.
A screening method of Chinese medicinal materials uses screening equipment of Chinese medicinal materials, and comprises the following steps:
the material enters the shell through the feeding cylinder and falls onto the round screen disc through the blanking hole;
the first motor drives the round sieve tray to rotate through the transmission of the first gear and the second gear, and the round sieve tray screens materials through centrifugal force generated by rotation of the round sieve tray.
Then, the material is thrown onto the annular screen disc by the centrifugal force of the circular screen disc, and the material moves on the annular screen disc by the centrifugal force of the annular screen disc, so that secondary screening is performed.
Compared with the prior art, the utility model has the following beneficial effects:
when the rotary screen is used, materials enter the shell through the feeding cylinder and fall onto the rotary screen disc through the blanking hole; the first motor drives the round sieve tray to rotate through the transmission of the first gear and the second gear, and the round sieve tray screens materials through centrifugal force generated by rotation of the round sieve tray. Then, the material is thrown onto the annular screen disc by the centrifugal force of the circular screen disc, and the material moves on the annular screen disc by the centrifugal force of the annular screen disc, so that secondary screening is performed. When the device is produced, the rotation speed of the circular screen disc can be larger than that of the annular screen disc (can be several times or tens times larger) by controlling the transmission ratio of the first gear and the second gear, so that the circular screen disc can rapidly remove impurities (the size of the screened impurities is smaller than that of materials), and the screened impurities are discharged through the impurity discharging cylinder. During secondary screening, material that can pass through the annular screen tray is discharged through the second opening. Material that cannot pass through the annular screen tray reaches the edge of the annular screen tray and can be discharged through the first outlet.
Drawings
Fig. 1 is a schematic perspective view of a first view angle of a screening apparatus for Chinese medicinal materials according to an embodiment of the present utility model;
fig. 2 is a schematic right-view structural diagram of a screening device for Chinese medicinal materials according to an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of portion A-A of FIG. 2, provided in accordance with an embodiment of the present utility model;
FIG. 4 is an enlarged schematic view of the portion B in FIG. 3 according to an embodiment of the present utility model;
FIG. 5 is an enlarged schematic view of the portion C in FIG. 4 according to an embodiment of the present utility model;
FIG. 6 is an enlarged schematic view of the portion E of FIG. 5 according to an embodiment of the present utility model;
FIG. 7 is an enlarged schematic view of the portion D of FIG. 4 according to an embodiment of the present utility model;
FIG. 8 is a schematic view of the structure of a feed cylinder, a round screen tray, and an annular screen tray portion provided by an embodiment of the present utility model;
FIG. 9 is an enlarged schematic view of the portion F in FIG. 8 according to an embodiment of the present utility model;
fig. 10 is a schematic perspective view of a second view angle of a screening apparatus for chinese herbal medicines according to an embodiment of the present utility model;
fig. 11 is an enlarged schematic view of the portion G in fig. 10 according to an embodiment of the present utility model.
In the figure: 1. a housing; 2. a feed cylinder; 3. a bearing block; 4. a blanking hole; 5. a first motor; 6. a first rotating shaft; 7. a first gear; 8. a second gear; 9. a second rotating shaft; 10. a round screen disc; 11. a connecting rod; 12. an annular screen disc; 13. a trash discharging cylinder; 14. a first outlet; 15. a second opening; 16. a communicating pipe; 17. a first through hole; 18. a fixed sleeve; 19. a first gas passage; 20. a first limiting plate; 21. a second limiting plate; 22. a receiving groove; 23. an annular groove; 24. an L-shaped limiting rod; 25. a support roller; 26. a second gas passage; 27. a pipe; 28. a communication hole; 29. briquetting; 30. an elastic reset piece; 31. a cavity; 32. a gas injection hole; 33. a connecting piece; 331. bending the pipe; 332. a straight pipe; 333. a ring body; 334. a third through hole; 34. a third rotating shaft; 35. helical blades.
Detailed Description
For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.
The structure of the present utility model will be described in detail with reference to the accompanying drawings.
Referring to fig. 1-11, the screening device for traditional Chinese medicinal materials provided by the embodiment of the utility model comprises a casing 1, wherein a feeding cylinder 2 is arranged in the casing 1, the lower end of the feeding cylinder 2 is fixedly connected with a bearing block 3, the bearing block 3 is provided with a blanking hole 4, the lower surface of the bearing block 3 is fixedly connected with a first motor 5, the output end of the first motor 5 is fixedly connected with a first rotating shaft 6, the first rotating shaft 6 is fixedly connected with a first gear 7, the first gear 7 is meshed with a plurality of second gears 8, the plurality of second gears 8 are distributed at equal intervals in an annular mode relative to the first gear 7, the middle parts of the second gears 8 are fixedly connected with a second rotating shaft 9, the upper ends of the second rotating shafts 9 are rotatably connected to the lower surface of the bearing block 3, the lower ends of the second rotating shafts 9 are fixedly connected with a round screen disc 10, the lower ends of the first rotating shafts 6 are fixedly connected with a connecting rod 11, one ends of the connecting rod 11, which are far away from the first rotating shaft 6, are fixedly connected with an annular screen disc 12, and the annular screen disc 12 is positioned below the round screen disc 10; the impurity discharging cylinder 13 is arranged at the lower side of the inner ring of the annular screen disc 12; a first outlet 14 is arranged on the side wall of the shell 1, and the first outlet 14 is aligned with the annular screen disc 12; the lower side of the housing 1 is provided with a second opening 15.
When in use, materials enter the shell 1 through the feeding cylinder 2 and fall onto the round screen disc 10 through the blanking hole 4; the first motor 5 drives the circular screen tray 10 to rotate through the transmission of the first gear 7 and the second gear 8, and the circular screen tray 10 screens materials through centrifugal force generated by rotation of the circular screen tray 10. The material is then thrown onto the annular screen tray 12 by the centrifugal force of the round screen tray 10, and the material is moved over the annular screen tray 12 by the centrifugal force of the annular screen tray 12, thereby performing secondary screening.
In the production of the present apparatus, by controlling the transmission ratio of the first gear 7 and the second gear 8, the rotation speed of the round sieve tray 10 can be made larger than that of the annular sieve tray 12 (which can be several times or several tens times larger), so that the round sieve tray 10 can rapidly remove impurities (the size of the removed impurities is smaller than that of the material), and the removed impurities are discharged through the impurity discharge cylinder 13. During secondary screening, material that can pass through the annular screen pan 12 is discharged through the second openings 15. Material that cannot pass through the annular screen tray 12 reaches the edge of the annular screen tray 12 and can be discharged through the first outlet 14.
It should be noted that, the number of the blanking holes 4 is equal to the number of the round sieve trays 10, and the positions of the blanking holes 4 correspond to the positions of the round sieve trays 10, so that the material falling from the blanking holes 4 can accurately fall onto the round sieve trays 10.
Referring to fig. 3 and 9, a dust suction pump (not shown in the drawings) is connected to the lower end of the impurity removing cylinder 13, a communicating pipe 16 is connected to the sidewall of the impurity removing cylinder 13, and a first through hole 17 is formed in the communicating pipe 16. When the material falls into the round screen disc 10 from the feed cylinder 2, dust in the material can be dispersed into the space above the round screen disc 10, and negative pressure can be formed inside the impurity discharging cylinder 13 through the dust suction pump, so that the dust is sucked into the feed cylinder 2, and the impurity removing efficiency is improved. And, the dust impurities in the materials sieved by the annular sieve tray 12 can be absorbed through the first through holes 17. The lower end of the impurity discharging cylinder 13 may be provided with a cover body capable of opening and closing, and the waste material may fall onto the cover body and be removed at regular time. In addition, the cover body can ensure that the bottom of the impurity discharging cylinder 13 is airtight, so that a negative pressure environment can be formed inside the impurity discharging cylinder 13.
Referring to fig. 7, the second rotating shaft 9 is sleeved with a fixing sleeve 18, and an annular blanking channel is arranged between the fixing sleeve 18 and the second rotating shaft 9.
During the use, the material that falls down in the feed cylinder 2 can be through in the unloading passageway of unloading hole 4 accurate, then fall to the middle part of round screen tray 10, compare in the edge that the material falls to round screen tray 10, the material falls to the round screen tray 10 can increase screening time, improves screening efficiency. The lower extreme of second pivot 9 is equipped with first gas channel 19, the upper end of first gas channel 19 with the unloading passageway intercommunication. With this arrangement, the suction pump can create a negative pressure in the first gas passage 19, thereby sucking dust and impurities in the discharge passage.
Referring to fig. 9, a first limiting plate 20 is rotatably connected to the first rotating shaft 6, a side wall of the first limiting plate 20 is an arc-shaped side wall, and the side wall of the first limiting plate 20 is attached to an edge of the round sieve tray 10; the screening equipment of chinese-medicinal material still includes second limiting plate 21, the shape of second limiting plate 21 lateral wall is circular, the shape of second limiting plate 21 inside wall is the arc, just second limiting plate 21 inside wall with the marginal laminating of circular sieve dish 10. When in use, the first limiting plate 20 can fill the gap between the round screen plates 10, and the second limiting plate 21 can fill the gap between the round screen plates 10 and the annular screen plate 12, so that materials are prevented from directly falling into the impurity discharging cylinder 13.
Referring to fig. 7, a receiving groove 22 is provided at the lower side of the bearing block 3, and the upper end of the second rotating shaft 9 is rotatably disposed in the receiving groove 22; the fixed sleeve 18 is provided with an annular groove 23, and the heights of the annular grooves 23 are at least partially different; the lower surface of the bearing block 3 is fixedly connected with an L-shaped limiting rod 24, and the end part of the L-shaped limiting rod 24 is inserted into the annular groove 23.
When in use, the height of the L-shaped limiting rod 24 is unchanged, and the heights of the annular grooves 23 are at least partially different, so that the fixed sleeve 18 can move up and down while rotating, namely the second rotating shaft 9 and the round screen disc 10 can also move up and down while rotating. Through this setting, on the one hand, circular screen tray 10 can also vibrate from top to bottom in rotatory centrifugation, improves screening effect. On the other hand, when the round screen tray 10 is below, the upper surface of the round screen tray 10 is lower than the upper surface of the second limiting plate 21, and at this time, the material on the round screen tray 10 is not thrown onto the annular screen tray 12 by centrifugal force, so that the screening time can be increased, and the screening effect can be improved. When the round screen tray 10 is above, the upper surface of the round screen tray 10 is higher than or equal to the upper surface of the second limiting plate 21, and at this time, the material on the round screen tray 10 is thrown onto the annular screen tray 12 by centrifugal force.
Referring to fig. 4 and 5, a supporting roller 25 is disposed in the casing 1, and an upper side of the supporting roller 25 is attached to a lower side of the annular screen plate 12; when the annular screen disc 12 rotates, the supporting roller 25 can support the annular screen disc 12, so that the annular screen disc 12 can bear more materials, and the efficiency of screening the materials is improved. Preferably, the outer circumferential surface of the supporting roller 25 is fixedly connected with a protruding strip, so that the annular screen disc 12 can vibrate periodically, and the screening efficiency can be further improved.
Referring to fig. 4-6, a second air channel 26 is provided inside the supporting roller 25, and one end of the second air channel 26 is communicated with an air pump (not shown in the drawings); the outer peripheral surface elasticity of backing roll 25 has pegged graft pipeline 27, pipeline 27 is close to the one end of backing roll 25 is sealed, communication hole 28 has been seted up to the lateral wall downside of pipeline 27, works as when pipeline 27 is extruded, communication hole 28 with second gas passage 26 intercommunication, works as when pipeline 27 is not extruded, communication hole 28 with backing roll 25 laminating, the upper end of pipeline 27 can run through the sieve mesh of annular sieve tray 12, just be equipped with briquetting 29 on the outer peripheral surface of pipeline 27, briquetting 29 with be equipped with elasticity reset piece 30 between the downside of backing roll 25.
In use, when the pipeline 27 is inserted into the sieve holes of the annular sieve tray 12, the pressing blocks 29 are pressed on the lower side of the annular sieve tray 12, so that the pipeline 27 moves towards the direction of the supporting roller 25, and at the moment, the communication holes 28 are communicated with the second gas channel 26, so that gas can be sprayed to the annular sieve tray 12 through the pipeline 27, and materials can be turned over or blown up, thereby improving the sieving efficiency. When the duct 27 is disengaged from the annular screen tray 12, the duct 27 is automatically reset by the elastic reset member 30, and thus, no gas is ejected.
The pipe 27 may also dredge the mesh of the annular screen tray 12 to prevent the mesh from being blocked. When the second gas channel 26 communicates with the water pump, the conduit 27 may also spray liquid, thereby effecting cleaning of the annular screen disc 12. Even in the case of providing a plurality of support rollers 25, a part of the support rollers 25 may be sprayed with a liquid, and another part of the support rollers 25 may be sprayed with a gas, at which time the material may be washed and dried (i.e., impurities adhering to the surface of the material may be washed). The duct 27 blows air, and the impurity discharging tube 13 sucks air to form a gas circulation, so that floating impurities in the space above the annular screen plate 12 can be removed.
Referring to fig. 5, a cavity 31 is provided in the second limiting plate 21, and an air injection hole 32 communicating with the cavity 31 is provided in the inner ring of the second limiting plate 21; the second gas passage 26 communicates with the cavity 31 via a connection 33.
When the rotary screen disc is used, on one hand, gas in the channel can enter the cavity 31 and is sprayed out from the gas spraying holes 32, and the gas spraying holes 32 can blow materials on the rotary screen disc 10, so that the screening effect is improved. On the other hand, the round screen tray 10 may be cleaned by spraying water.
It should be noted that the air holes 32 enhance the sieving effect in two ways: first, the centrifugal force of the round screen tray 10 causes the material to move toward the edges, and the air injection holes 32 cause the material to have forces in opposite directions, so that the material reciprocates on the round screen tray 10, and the screening effect can be improved. On the other hand, the air ejected from the air ejection holes 32 can roll the material, thereby improving the sieving effect.
For example, referring to fig. 5, 6 and 11, the connecting member 33 includes:
a bent pipe 331 rotatably connected to and communicating with the second gas passage 26;
a straight tube 332 communicating with the cavity 31, and a gap (for passing the connecting rod 11) is provided between the straight tube 332 and the bent tube 331;
the ring 333 is fixedly connected to the connecting rod 11, the ring 333 is located in the gap, and the ring 333 is provided with a plurality of third through holes 334 capable of communicating with the bent tube 331 and the straight tube 332.
In use, the ring 333 rotates with the connecting rod 11 and the annular screen disc 12, when the third through hole 334 is communicated with the bent pipe 331 and the straight pipe 332, gas can be injected into the cavity 31, and when the third through hole 334 is not communicated with the bent pipe 331 and the straight pipe 332, gas cannot be injected into the cavity 31.
Referring to fig. 4, the first motor 5 is a double-headed motor, a third rotating shaft 34 is fixedly connected to the other output end of the first motor 5, the third rotating shaft 34 extends into the feeding barrel 2, a spiral blade 35 is circumferentially disposed on the outer peripheral surface of the third rotating shaft 34, and the edge of the spiral blade 35 is attached to the inner wall of the feeding barrel 2.
With this arrangement, automatic blanking can be achieved, and the speed of blanking is controlled by controlling the rotation of the first motor 5. When the blanking speed is high, the rotating speed of the round screen disc 10 is correspondingly increased, so that the screening speed is improved, and conversely, the rotating speed of the round screen disc 10 is correspondingly reduced.
A screening method of Chinese medicinal materials uses the screening equipment of the Chinese medicinal materials, and comprises the following steps:
step S1, materials enter the shell 1 through a feeding cylinder 2 and fall onto a round screen disc 10 through a blanking hole 4;
step S2, the first motor 5 drives the circular screen disc 10 to rotate through the transmission of the first gear 7 and the second gear 8, and the circular screen disc 10 screens materials through centrifugal force generated by rotation of the circular screen disc 10;
in step S3, the material is thrown onto the annular screen tray 12 by the centrifugal force of the round screen tray 10, and the material is moved on the annular screen tray 12 by the centrifugal force of the annular screen tray 12, thereby performing secondary screening.
The working principle of the utility model is as follows:
when in use, materials enter the shell 1 through the feeding cylinder 2 and fall onto the round screen disc 10 through the blanking hole 4; the first motor 5 drives the circular screen tray 10 to rotate through the transmission of the first gear 7 and the second gear 8, and the circular screen tray 10 screens materials through centrifugal force generated by rotation of the circular screen tray 10. The material is then thrown onto the annular screen tray 12 by the centrifugal force of the round screen tray 10, and the material is moved over the annular screen tray 12 by the centrifugal force of the annular screen tray 12, thereby performing secondary screening. In the production of the present apparatus, by controlling the transmission ratio of the first gear 7 and the second gear 8, the rotation speed of the round sieve tray 10 can be made larger than that of the annular sieve tray 12 (which can be several times or several tens times larger), so that the round sieve tray 10 can rapidly remove impurities (the size of the removed impurities is smaller than that of the material), and the removed impurities are discharged through the impurity discharge cylinder 13. During secondary screening, material that can pass through the annular screen pan 12 is discharged through the second openings 15. Material that cannot pass through the annular screen tray 12 reaches the edge of the annular screen tray 12 and can be discharged through the first outlet 14.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Screening equipment of chinese-medicinal material, including casing (1), the inside feed cylinder (2), its characterized in that is equipped with of casing (1):
the feeding device comprises a feeding barrel (2), wherein the lower end of the feeding barrel is fixedly connected with a bearing block (3), a blanking hole (4) is formed in the bearing block (3), a first motor (5) is fixedly connected to the lower surface of the bearing block (3), a first rotating shaft (6) is fixedly connected to the output end of the first motor (5), a first gear (7) is fixedly connected to the first rotating shaft (6), a plurality of second gears (8) are meshed with the first gear (7), the second gears (8) are distributed at equal intervals in an annular shape relative to the first gears (7), a second rotating shaft (9) is fixedly connected to the middle of the second gears (8), the upper end of the second rotating shaft (9) is rotatably connected to the lower surface of the bearing block (3), a round screen disc (10) is fixedly connected to the lower end of the second rotating shaft (9), a connecting rod (11) is fixedly connected to the lower end of the first rotating shaft (6), one end of the connecting rod (11) far away from the first rotating shaft (6) is fixedly connected with an annular screen disc (12), and the annular screen disc (12) is located below the round screen disc (10);
the impurity discharging cylinder (13) is arranged at the lower side of the inner ring of the annular screen disc (12);
a first outlet (14) is formed in the side wall of the casing (1), and the first outlet (14) is aligned with the annular screen disc (12);
the lower side of the shell (1) is provided with a second opening (15);
a fixed sleeve (18) is sleeved on the second rotating shaft (9), and an annular blanking channel is arranged between the fixed sleeve (18) and the second rotating shaft (9);
the lower side of the bearing block (3) is provided with a containing groove (22), and the upper end of the second rotating shaft (9) is rotatably arranged in the containing groove (22);
an annular groove (23) is formed in the fixed sleeve (18), and the heights of the annular grooves (23) are at least partially different;
the lower surface of the bearing block (3) is fixedly connected with an L-shaped limiting rod (24), and the end part of the L-shaped limiting rod (24) is inserted into the annular groove (23).
2. A screening apparatus for chinese herbal medicine as claimed in claim 1, wherein:
the dust collection device is characterized in that the dust collection pump is communicated with the lower end of the impurity removal cylinder (13), a communicating pipe (16) is communicated with the side wall of the impurity removal cylinder (13), and a first through hole (17) is formed in the communicating pipe (16).
3. A screening apparatus for chinese herbal medicine as claimed in claim 1, wherein:
a first limiting plate (20) is rotatably connected to the first rotating shaft (6), the side wall of the first limiting plate (20) is an arc-shaped side wall, and the side wall of the first limiting plate (20) is attached to the edge of the round screen disc (10);
the screening equipment of chinese-medicinal material still includes second limiting plate (21), the shape of second limiting plate (21) lateral wall is circular, the shape of second limiting plate (21) inside wall is the arc, just second limiting plate (21) inside wall with the edge laminating of rotary screen dish (10).
4. A screening apparatus for chinese herbal medicine as claimed in claim 3, wherein:
the machine shell (1) is internally provided with a supporting roller (25) which is transversely arranged, and the upper side of the supporting roller (25) is attached to the lower side of the annular screen disc (12).
5. The apparatus for screening a chinese medicinal material according to claim 4, wherein:
a second gas channel (26) is arranged in the support roller (25), and one end of the second gas channel (26) is communicated with an air pump;
the utility model discloses a support roller, including support roller (25), outer peripheral face elasticity grafting has pipeline (27), pipeline (27) are close to the one end of support roller (25) is sealed, communication hole (28) have been seted up to the lateral wall downside of pipeline (27), works as when pipeline (27) are extruded, communication hole (28) with second gas passage (26) intercommunication, works as when pipeline (27) are not extruded, communication hole (28) with laminating of support roller (25), the upper end of pipeline (27) can run through the sieve mesh of annular sieve tray (12), just be equipped with briquetting (29) on the outer peripheral face of pipeline (27), briquetting (29) with be equipped with elasticity reset piece (30) between the downside of support roller (25).
6. A screening apparatus for chinese herbal medicine as recited in claim 5, wherein:
a cavity (31) is formed in the second limiting plate (21), and an air injection hole (32) communicated with the cavity (31) is formed in the inner ring of the second limiting plate (21);
the second gas channel (26) communicates with the cavity (31) via a connection (33).
7. A screening apparatus for chinese herbal medicine as claimed in claim 1, wherein:
the first motor (5) is a double-headed motor, the other output end of the first motor (5) is fixedly connected with a third rotating shaft (34), the third rotating shaft (34) extends into the feeding barrel (2), a spiral blade (35) is arranged on the outer peripheral surface of the third rotating shaft (34) in a surrounding mode, and the edge of the spiral blade (35) is attached to the inner wall of the feeding barrel (2).
8. A method for screening of chinese herbal medicine, characterized in that a screening device according to any one of claims 1-7 is used and comprises the steps of:
the materials enter the shell (1) through the feeding cylinder (2) and fall onto the round screen disc (10) through the blanking hole (4);
the first motor (5) drives the circular screen disc (10) to rotate through the transmission of the first gear (7) and the second gear (8), and the circular screen disc (10) screens materials through centrifugal force generated by rotation of the circular screen disc;
then, the material is thrown onto the annular screen disc (12) by the centrifugal force of the round screen disc (10), and the material is moved on the annular screen disc (12) by the centrifugal force of the annular screen disc (12), so that secondary screening is performed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311620470.3A CN117299523B (en) | 2023-11-30 | 2023-11-30 | Screening equipment and screening method for traditional Chinese medicinal materials |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311620470.3A CN117299523B (en) | 2023-11-30 | 2023-11-30 | Screening equipment and screening method for traditional Chinese medicinal materials |
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| CN117299523A CN117299523A (en) | 2023-12-29 |
| CN117299523B true CN117299523B (en) | 2024-02-02 |
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| CN113998164A (en) * | 2021-11-01 | 2022-02-01 | 常德振邦米业有限公司 | Automatic bagging device is used in rice production and processing |
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| CN115591681A (en) * | 2022-09-23 | 2023-01-13 | 安徽农业大学（Cn） | Wheat seed grain screening plant |
| CN116618308A (en) * | 2023-07-20 | 2023-08-22 | 河南勇威特种设备有限公司 | Sand and stone screening and separating equipment for engineering construction |
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2023
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005000876A (en) * | 2003-06-13 | 2005-01-06 | Kubota Matsushitadenko Exterior Works Ltd | Material kneading tank |
| CN108911535A (en) * | 2018-07-04 | 2018-11-30 | 衢州市远方化工厂（普通合伙） | A kind of preparation process of high activity anti-agglomeration calcium hydroxide |
| CN111678329A (en) * | 2020-06-20 | 2020-09-18 | 杨木俭 | Automatic drying and separating method for building sand and stone |
| CN113998164A (en) * | 2021-11-01 | 2022-02-01 | 常德振邦米业有限公司 | Automatic bagging device is used in rice production and processing |
| CN115591681A (en) * | 2022-09-23 | 2023-01-13 | 安徽农业大学（Cn） | Wheat seed grain screening plant |
| CN115445903A (en) * | 2022-10-19 | 2022-12-09 | 广东金晟新能源股份有限公司 | Waste lithium battery retrieves with thin multistage screening plant after breakage |
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| CN117299523A (en) | 2023-12-29 |
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