CN102513294A - Device for screening powder by convoluted air flow - Google Patents
Device for screening powder by convoluted air flow Download PDFInfo
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- CN102513294A CN102513294A CN2011103829681A CN201110382968A CN102513294A CN 102513294 A CN102513294 A CN 102513294A CN 2011103829681 A CN2011103829681 A CN 2011103829681A CN 201110382968 A CN201110382968 A CN 201110382968A CN 102513294 A CN102513294 A CN 102513294A
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Abstract
The invention discloses a device for screening powder by convoluted air flow, comprising a base and a powder screening room which is arranged on the base and is provided with an upper sealing cover, wherein a power inlet arranged on the upper sealing cover is communicated with an external powder inlet channel through a control valve; a double-circular-arc separation plate is concentrically arranged at the inner side of the upper sealing cover; the powder screening room is internally and horizontally provided with a sample separation sieve; an air outlet pipeline connected with an air outlet of an air filter extends from the bottom of the powder screening room to be communicated with an air nozzle which is arranged below the sample separation sieve; and a powder outlet pipeline which is arranged below the powder screening room is communicated with a negative-pressure collecting device. The device provided by the invention has the advantages that the sample separation sieve can be conveniently exchanged and can be used for accurately screening superfine powder with different grain diameters and precisely controlling the largest grain diameter of finished-product micro-powder; the whole screening device is a closed negative-pressure atmosphere, so that dust pollution caused by screening the powder is effectively prevented; and meanwhile, the pollution to traditional Chinese medicine micro-powder, which is caused by dirt in the air, can be prevented, and a screen can be washed by upwards rushing the air flow in a powder screening process and the problem that the sample separation sieve is blocked is solved.
Description
Technical field
The present invention relates to the screening plant of powder, especially relate to a kind of laboratory gyration airflow sieve powder device commonly used.
Background technology
Superfine communication technique is to be based upon on the micromeritis basis, is accompanied by the breakthrough of the updating of disintegrating process, shattering and related discipline, and occurring in succession of disintegrating apparatus and a new technology growing up.In field of traditional Chinese medicine pharmacy; Compare with the processing mode of traditional Chinese medicine; Superfine communication technique has the cost of saving, is convenient to use, increases advantages such as drug absorption rate, raising bioavilability, but in crushing process, because the surface-active and the high powder that makes of interfacial characteristics of ultra micro powder demonstrate stronger adhesiveness; Mixed powder is prone to take place to stop up the phenomenon of screen cloth when sieving, influenced the sieving rate of medicine.Be mechanical type or air-flowing type micronizer at herbal pharmaceutical industry micronizer commonly used at present; Though mix impeller classification function the average grain diameter of micro mist is reached below the 25 μ m; But there is the uneven problem of finished product grain size size, needs through sieving accurately control maximum particle diameter.Now the mixed powder used of laboratory sieves still to adopt and divides appearance a manual method of sieving, and not only dust is big, efficient is low in the sieve powder process, and sieving of the above fine powder of 200 orders often is difficult to carry out because of the network blocking problem; The ultrasonic reciprocating sieve that yet has sieve by hand to combine with ultrasonic vibrations principle, though efficient improves than rider, dust pollution and network blocking problem are not resolved at all.
Summary of the invention
The object of the present invention is to provide a kind of gyration airflow easy to operate, that sieve the suitable laboratory operation of powder efficient height, non-environmental-pollution to sieve the powder device.
For realizing above-mentioned purpose, the present invention can take following technical proposals:
Gyration airflow of the present invention sieve powder device comprises pedestal and is arranged on the sieve powder chamber that seals loam cake having on the pedestal, is opened in the powder inlet that covers in the said sealing and advances the powder passage through by-pass valve control and outside and be connected; Be provided with two circular arc dividing plates in said sealing loam cake inner concentric; Be provided with sub-sieve at said sieve powder indoor horizontal; The wind pipe that links to each other with the air cleaner air outlet is connected with the air nozzle that is arranged on the sub-sieve below after the extension of bottom, powder chamber is entered from sieving; The powder delivery pipeline that is opened in below, sieve powder chamber is connected with the negative pressure gathering-device.
Described air nozzle is the hollow pipe that is horizontally set on the sub-sieve below, on the tube wall near sub-sieve, is evenly equipped with venthole; Described wind pipe passes through the transmission mechanism driven in rotation by micro machine.
Distance h between the identical two circular arc dividing plates of said radius is 2cm.
The invention has the advantages that the sub-sieve replacing is convenient, can the ultra micro powder of different-grain diameter accurately be sieved, accurately control the maximum particle diameter of finished product micro mist; Whole screening plant is an airtight subnormal ambient; Effectively prevent to sieve the powder operation and produce the dust pollution air; Prevent again simultaneously that airborne dirt from producing pollution to the Chinese medicine micro mist; The net effect the sub-sieve blocking problem can not occur yet owing to upward dashing of air-flow played clearly during the sieve powder, and operation is very easy, is fit to very much laboratory screening Chinese medicine and various plant ultra-micropowder usefulness.
Under the effect of negative pressure gathering-device; Whole sieve powder device is in the subnormal ambient, and mixed powder to be sieved gets in the sieve powder chamber of sealing, equally in subnormal ambient through by-pass valve control under suction function; Pass sub-sieve through the pure air that air cleaner is drawn into and between two circular arc dividing plates, form the convoluted air-flow; The air-flow band the mixed powder revolution downwards, and qualified fine powder passes screen cloth and is collected from the powder delivery pipeline, and underproof meal is stayed on the sub-sieve.Adopt sieve powder device of the present invention can sieve the above fine powder of 500 orders.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 be among Fig. 1 the sealing loam cake A to view.
The specific embodiment
Like Fig. 1, shown in 2; Gyration airflow sieve powder device of the present invention; It comprises pedestal 1 and is arranged on the sieve powder chamber 3 that fastening on the pedestal 1 has sealing loam cake 2; Be opened in the powder inlet of sealing on the loam cake 2 and advance powder passage 5 through by-pass valve control 4 and outside and be connected, by-pass valve control 4 is controlled as required and is advanced the powder amount; Inner concentric at sealing loam cake 2 is provided with two groups of two circular arc dividing plates 6, and the distance h between the identical two circular arc dividing plates 6 of radius is 2cm; In sieve powder chamber 3, be horizontally disposed with sub-sieve 7, the specification of sub-sieve 7 can be changed as required; Be provided with air cleaner 8 in the bottom of pedestal 1; The air inlet of air cleaner 8 and atmosphere; The wind pipe 9 that links to each other with air cleaner 8 air outlets is connected with the air nozzle that is arranged on sub-sieve 7 belows after the extension of bottom, powder chamber is entered from sieving; Evenly jet to sub-sieve 7 when guaranteeing work, air nozzle is the hollow pipe 11 that is horizontally set on sub-sieve 7 belows, on the tube wall near sub-sieve 7, is evenly equipped with venthole 12; Wind pipe 9 passes through the transmission mechanism driven in rotation by micro machine 13; The powder delivery pipeline 10 that is opened in sieve 3 belows, powder chamber is connected with the negative pressure gathering-device.
During work, under the effect of negative pressure gathering-device, whole sieve powder device is in subnormal ambient, and mixed powder to be fractionated advances powder passage 5 by the outside and gets in the airtight sieve powder chamber 3 through by-pass valve control 4, fully atomizes through the two circular arc dividing plates 6 that are provided with one heart; Wind pipe 9 rotates under the driving of micro machine 13; Drive the hollow pipe that offers venthole 12 11 Rotating with Uniform of sub-sieve 7 belows, be ejected in the pure air that is drawn into by air cleaner 8 under the subnormal ambient to sub-sieve 7, air-flow is upward through sub-sieve 7; Form convoluted air-flow on 6 on two circular arc dividing plates; The air-flow band can cross net fine powder revolution downwards through sub-sieve 7, collected by the negative pressure gathering-device through negative pressure powder delivery pipeline 10, unsanctioned meal is stayed on the sub-sieve 7.
Claims (3)
1. a gyration airflow sieves the powder device; It is characterized in that: it comprises pedestal (1) and is arranged on the sieve powder chamber (3) that has sealing loam cake (2) on the pedestal (1), is opened in powder inlet on the said sealing loam cake (2) and advances powder passage (5) through by-pass valve control (4) and outside and be connected; Be provided with two circular arc dividing plates (6) in said sealing loam cake (2) inner concentric; In said sieve powder chamber (3), be horizontally disposed with sub-sieve (7); The wind pipe (9) that links to each other with air cleaner (8) air outlet sieves certainly and is connected with the air nozzle that is arranged on sub-sieve (7) below after the extension of bottom, powder chamber is entered; The powder delivery pipeline (10) that is opened in below, sieve powder chamber (3) is connected with the negative pressure gathering-device.
2. gyration airflow according to claim 1 sieve powder device is characterized in that: described air nozzle is evenly equipped with venthole (12) for being horizontally set on the hollow pipe (11) below the sub-sieve (7) on the tube wall near sub-sieve (7); Described wind pipe (9) passes through the transmission mechanism driven in rotation by micro machine (13).
3. gyration airflow according to claim 1 and 2 sieve powder device is characterized in that: the distance h between the identical two circular arc dividing plates (6) of said radius is 2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103829681A CN102513294B (en) | 2011-11-28 | 2011-11-28 | Device for screening powder by convoluted air flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103829681A CN102513294B (en) | 2011-11-28 | 2011-11-28 | Device for screening powder by convoluted air flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102513294A true CN102513294A (en) | 2012-06-27 |
| CN102513294B CN102513294B (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103829681A Active CN102513294B (en) | 2011-11-28 | 2011-11-28 | Device for screening powder by convoluted air flow |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103070972A (en) * | 2012-12-11 | 2013-05-01 | 河南省康星药业股份有限公司 | Normal temperature preparation method of Radix Scrophulariae and licorice submicron powder, and special bidirectional airflow screener therefor |
| CN103949400A (en) * | 2014-05-05 | 2014-07-30 | 红塔烟草(集团)有限责任公司 | Device and method for increasing material separation rate through negative-pressure air system |
| CN103949397A (en) * | 2014-05-05 | 2014-07-30 | 红塔烟草(集团)有限责任公司 | Equipment and method for improving separation rate of materials by utilizing compressed air system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201596560U (en) * | 2009-12-17 | 2010-10-06 | 河南省康星药业有限公司 | Air blast ultramicro powder separation device |
| CN202343458U (en) * | 2011-11-28 | 2012-07-25 | 河南省康星药业有限公司 | Swirling airflow powder sieving device |
-
2011
- 2011-11-28 CN CN2011103829681A patent/CN102513294B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201596560U (en) * | 2009-12-17 | 2010-10-06 | 河南省康星药业有限公司 | Air blast ultramicro powder separation device |
| CN202343458U (en) * | 2011-11-28 | 2012-07-25 | 河南省康星药业有限公司 | Swirling airflow powder sieving device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103070972A (en) * | 2012-12-11 | 2013-05-01 | 河南省康星药业股份有限公司 | Normal temperature preparation method of Radix Scrophulariae and licorice submicron powder, and special bidirectional airflow screener therefor |
| CN103949400A (en) * | 2014-05-05 | 2014-07-30 | 红塔烟草(集团)有限责任公司 | Device and method for increasing material separation rate through negative-pressure air system |
| CN103949397A (en) * | 2014-05-05 | 2014-07-30 | 红塔烟草(集团)有限责任公司 | Equipment and method for improving separation rate of materials by utilizing compressed air system |
| CN103949397B (en) * | 2014-05-05 | 2016-02-24 | 红塔烟草(集团)有限责任公司 | A kind of Apparatus and method for utilizing compressed air system to improve feed separation rate |
| CN103949400B (en) * | 2014-05-05 | 2016-07-06 | 红塔烟草(集团)有限责任公司 | Negative pressure air system is utilized to improve the Apparatus and method for of feed separation rate |
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| Publication number | Publication date |
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| CN102513294B (en) | 2013-12-04 |
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Address after: 451464, No. 2, Hing Road, Baisha Industrial Park, Zhongmu County, Henan, Zhengzhou Applicant after: Henan Health Star Pharmaceutical Co., Ltd. Address before: 451464, No. 2, Hing Road, Baisha Industrial Park, Zhongmu County, Henan, Zhengzhou Applicant before: Henan Kangxing Pharmaceutical Co., Ltd. |
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