CN102429937B - Superfine powder purslane powder normal-temperature preparation method and special double-direction air flow screening machine thereof - Google Patents
Superfine powder purslane powder normal-temperature preparation method and special double-direction air flow screening machine thereof Download PDFInfo
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- CN102429937B CN102429937B CN 201110382935 CN201110382935A CN102429937B CN 102429937 B CN102429937 B CN 102429937B CN 201110382935 CN201110382935 CN 201110382935 CN 201110382935 A CN201110382935 A CN 201110382935A CN 102429937 B CN102429937 B CN 102429937B
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Abstract
The invention discloses a superfine powder purslane powder normal-temperature preparation method. The method comprises the following steps of: washing Chinese medicinal crop purslane, drying, cutting into long sections and drying until water content is less than or equal to 10 percent; crushing the sectioned traditional Chinese medicine at normal temperature to obtain coarse powder with particle size of 60-100 meshes; filling the coarse powder in a rod mill and crushing; feeding into a special double-direction air flow screening machine through air and screening through a 500-mesh screen; conveying the powder with particle size of less than or equal to 25 microns obtained by screening into a cyclone collector through an air flow produced by an induced draught fan to collect a superfine powder purslane powder finished product; and collecting the powder which does not pass through the 500-mesh screen through a funnel, conveying to the rod mill through a pipeline and then circularly crushing. The method has the advantages that: the preparation process is performed at the normal temperature; the prepared finished medicament has the particle size of less than or equal 25 microns, and the cell wall breakage rate and the bioavailability are greatly improved; and through the double-direction air flow screening machine used in the method, the preparation process for the superfine powder purslane powder is simplified, and the aim of controllable quality standard of traditional Chinese medicine powder is fulfilled.
Description
Technical field
The present invention relates to the veterinary drug preparation field, especially relate to the loose normal temperature preparation method of superfine powder Herba Portulacae; The invention still further relates to the special bilateral airflow sieving machine for the method.
Background technology
Diarrhea in livestock be China and even world's aquaculture one of technical barrier.Domestic animal also seriously hinders the sound development of aquaculture because the death of suffering from diarrhoea causes huge economic loss to cultivation enterprise, is a technical problem that needs to be resolved hurrily.What the main cause of morbidity comprised Escherichia coli and other cause of diseases infects the factors such as dyspepsia, immunity degradation, ablactation and environmental stimulus.At present, the diarrhoea that pathogenic microorganism causes is mainly used antibiotic, chemotherapy, but along with being widely used of antibiotics, its drawback also highlights day by day, as the generation, the immunity of organisms that cause endogenous infection and superinfection, fastbacteria descend and medicine residual etc., thereby Antibiotic use is restricted.Chinese herbal medicine is the culture rarity of China, carrying out having antibiotic and the incomparable superiority of chemical synthetic drug aspect the prevention and treatment of diseases: safe, toxic and side effects is little, effective ingredient is many, hazard residue is few, action target spot is many, can bring into play combined effect, be difficult for producing drug resistance, scalable immunity of organisms, enhancing body resistance against diseases in anti-bacteria and anti-virus.More and more emphasize food safety in the our times various countries, under Calling for Green, the ecological overall background, apply prevention and the control that herbal medicine carries out Animal diseases and be of great practical significance.
Herba Portulacae head is stated from Shennong's Herbal, one of integration of edible and medicinal herbs wild plant of assert as health ministry, the history of utilizing in existing 1,100 of China.In recent years scientific research discovery, it is a kind of health functional food, has again great medical value, has showed wide application prospect.Herba Portulacae has the effect of heat-clearing and toxic substances removing, damp eliminating leukorrhagia stopping, and is multiplex in diseases such as treatment hematodiarrhoea, leukorrhagia, carbuncle, erysipelas, scrofulas.In addition, it also has stronger bacteriostasis, enteritis, coccus, coccidiosis and escherichia coli etc. is also had good prevention effect, and do not have the bitterness of common Chinese herbal medicine, and good palatability can be widely used in the animal and fowl fodder.
The Study on Supermicro-pulverization of Traditional Chinese Drugs technology is to the renewal of traditional crushing technology and development; it had both kept the advantage of Chinese medicine technology of preparing; injected new vitality for the modern production of Chinese medicine again; have a extensive future, but remain in actual production in some problems and a difficult problem: (1) production efficiency is low, the power consumption height is the principal element of restriction veterinary Chinese medicine superfine powder large-scale production.Rod mill is in traditional closed circuit method crushing process, when most of material has reached fineness requirement, always there is the small part coarse powder to be mixed in wherein, make this part coarse powder further be crushed to institute's granularity that requires needs significantly to prolong grinding time, so that crush efficiency reduces, power consumption significantly increases; (2) it is poor that there are the material particular diameter uniformity after the classification in selecting crude drugs with winnower classification and grading wheel classification, greatly affected the quality of production of herbal medicine compound recipe superfine powder, especially when being applied to the drinking water for animals use, because a small amount of not existence of breaking cellular wall cell is difficult to reach instructions for use.(3) traditional one-way gas flow screening is because Chinese medicine is when carrying out micronizing, along with reducing of particle diameter, material particles surface area and surface energy increase, adsorptivity increases, and mobile variation easily is gathered into bulky grain etc. and causes the sieve classification of crossing that surpasses 200 order fineness medicated powder to be difficult to carry out.The existence of above-mentioned factor has had a strong impact on standardization, the large-scale production of herbal medicine superfine powder, and the popularization on veterinary clinic and use.
Summary of the invention
The object of the invention is to provide a kind of superfine powder Herba Portulacae normal temperature preparation method that falls apart, efficiently solve that present production Herba Portulacae loose exists that energy consumption is large, the medicine maximum particle diameter is difficult to accurate control, can't produce continuously, difficult problems such as dust is many in the production process so that the finished medicines of preparation has is rapid-action, good effect, bioavailability is high, the clinical application amount is few effect.
Another purpose of the present invention is to provide a kind of special bilateral airflow sieving machine that is applied to the loose normal temperature preparation method of superfine powder Herba Portulacae.
The superfine powder Herba Portulacae of the present invention normal temperature preparation method that falls apart comprises the steps:
The first step, the Chinese crude drug Herba Portulacae is cleaned, dries, cut into the long section of 3-5cm, natural drying or dry to moisture≤10%;
Second step, under 20 ℃～25 ℃ the Chinese medicine of cutting is pulverized, obtaining granularity is 60-100 purpose coarse powder;
The 3rd step, with second step gained coarse powder place in the rod mill pulverize after, be fed into special bilateral airflow sieving machine by wind and cross 500 mesh sieves, the air-flow that the powder that obtains particle diameter≤25 micron of sieving is produced by air-introduced machine is transported to collect in the tornado feeder set and namely gets the loose finished product of superfine powder Herba Portulacae; The powder of not crossing 500 mesh sieves is transported to again circulation pulverizing in the described rod mill through the funnel collection and by pipeline.
Special bilateral airflow sieving machine of the present invention comprises casing and the downward screen drum of chamber intermediate openings that sets within it, the order number of described screen drum 〉=500 orders; The nozzle of screen drum is connected mutually with the funnel upper shed that is arranged on the casing bottom; Chassis cavity is connected with air-introduced machine by the negative pressure chamber on top; The door font rotation spray trachea that is made of transverse tube and standpipe is arranged at the region division between screen drum and casing, the puff prot of described door font rotation spray trachea is for axially being opened in groove on its tube wall along described transverse tube and standpipe respectively, described groove is offered towards the screen drum direction respectively, the groove width 0.5-2 millimeter of groove, the middle part of transverse tube and drive motors driving coupling; Be provided with blast pipe in the screen drum centre position, the air outlet of described blast pipe passes that screen drum is connected with the transverse tube middle part of door font rotation spray trachea and rolls by rolling bearing and is connected; The air inlet of blast pipe extends outside the described hopper side walls and is connected with the blast orifice of aerator; Be provided with feed pipe in screen drum, be provided with the buffering umbrella above the discharging opening of described feed pipe, the charging aperture of feed pipe extends outside the hopper side walls and is communicated with powder conveying fan air outlet through wind stopping device.
The air inducing of described air-introduced machine is pressed and is 1000pa, and the air inducing amount is 3000m
3/ h; The rotating speed of described drive motors is 155 rev/mins; The blast pressure of described aerator is 33kpa, and the blow rate required is 320m
3/ h; The wind pressure that goes out of described powder conveying fan is 24kpa, and air output is 150m
3/ h; The sidewall of described screen drum and roof respectively with corresponding standpipe and transverse tube between distance be 25 millimeters.
The invention has the advantages that whole preparation process all carries out at normal temperatures, do not need low temperature or special additional conditions; The final drug particle diameter of preparation≤25 microns has improved cell wall breaking rate and bioavailability greatly, has strengthened pharmacological action, thereby reduced treatment disease dosage, saved medical material, also improved abnormal smells from the patient and the mouthfeel of medicine simultaneously, improve drug quality, prolonged storage life; The bidirectional airflow sieving machine that uses in the inventive method has been simplified the loose preparation technology of superfine powder Herba Portulacae greatly, has realized the purpose that the Chinese powder medicine quality standard is controlled, be suitable for large-scale industrial production.
Clinical therapeutic efficacy according to the superfine powder Herba Portulacae powder preparation of the inventive method preparation is verified by following test:
Superfine powder Herba Portulacae preparation of the present invention is to the clinical efficacy of diarrhea of weaned piglets and fertility performance
Test drug and material:
The superfine powder Herba Portulacae is loose, adopts the present invention's preparation;
The Herba Portulacae coarse powder: 80 order coarse powder, make by oneself at laboratory;
Experimental animal: 180 of the DLY piglets that employing pig farm, Changyuan County, Xinxiang, Henan Province 21 ages in days wean, health is anosis, body weight is close, be divided at random 3 groups, every group 60, make its weaning weight consistent with the male and female sex ratio as far as possible, carry out respectively feeding experiment, isolated rearing is also fed and is not contained the complete feed of medicine.
The test grouping:
The I group adopts the superfine powder Herba Portulacae loose, feeds by 0.5% spice of feedstuff weight;
The II group adopts the Herba Portulacae coarse powder, feeds by 0.5% spice of feedstuff weight;
The III group is the blank group.
Test method: claim on an empty stomach initial weight morning when on-test, and feed according to above-mentioned addition and respectively organize medicine every day.After 30 days, claim on an empty stomach morning the end heavy, accurate recording feed intake, the situations such as piglet searches for food, spirit, fur, feces.
Raising for the examination piglet: piglet is raised by the special messenger, and every circle is established 1 crib, 1 automatic drinking bowl, and every day, 8:00, each filling of 12:00,17:00 were 1 time, and the material of not eating up is collected, dries, is weighed, record, and records the feed consumption rate of every day.
Testing index: repeating as unit, measure the weightening finish of respectively organizing piglet, daily ingestion amount, daily gain, feedstuff-meat ratio, diarrhea rate (diarrhea rate=diarrhoea number/(60 * 30d) * 100 ﹪).
Date processing: feed intake, daily gain, feedstuff-meat ratio and diarrhea rate are carried out variance analysis and multiple comparisons, and concrete outcome sees Table 1.
Table 1 multiple comparison analyse result
Observe from the test overall process, the test group growing-finishing pig is searched for food, is drunk water and all act normally, and does not find the abnormal conditions such as pig death.The result shows in the table 1: the loose group of superfine powder Herba Portulacae and Herba Portulacae coarse powder group all are better than matched group at aspects such as daily gain, material anharmonic ratio, diarrhea rates.Compare with matched group, material anharmonic ratio and the diarrhea rate of the loose group of superfine powder Herba Portulacae reduce respectively 5.45% and 38.4%.Material anharmonic ratio and the diarrhea rate of Herba Portulacae coarse powder reduce respectively 2.22% and 23.1%.This shows, Herba Portulacae makes an addition in the piglet diet, can obviously reduce diarrhea rate and the feedstuff-meat ratio of piglet, improves daily gain and fertility performance, the generation of drug resistance when having avoided antibiotic and chemical synthetic drug to use.When Isodose used, the superfine powder Herba Portulacae fell apart and has the incomparable superiority of Herba Portulacae coarse powder.
Description of drawings
Fig. 1 is the production equipment system figure of the method for the invention.
Fig. 2 is the structural representation of special bilateral airflow sieving machine of the present invention.
The specific embodiment
As shown in Figure 1, 2, the superfine powder Herba Portulacae of the present invention normal temperature preparation method that falls apart comprises the steps:
The first step, the Chinese crude drug Herba Portulacae is cleaned, dries, cut into the long section of 3-5cm, natural drying or dry to moisture≤10%;
Second step, under 20 ℃～25 ℃ the Chinese medicine of cutting is pulverized, obtaining granularity is 60-100 purpose coarse powder;
The 3rd goes on foot, at first opens powder conveying fan 15, air-introduced machine 5, aerator 11, drive motors 8.The blow pressure of powder conveying fan 15 is 24kpa, and the blowing amount is 150m
3/ h; The air inducing of air-introduced machine 5 is pressed and is 1000pa, and the air inducing amount is 3000m
3/ h; The blast pressure of aerator 11 is 33kpa, blow rate required 320m
3/ h; The rotating speed of drive motors 8 is 155 rev/mins.
1, second step gained coarse powder is placed rod mill 16 interior pulverizing after, rod mill 16 interior powder body to be fractionated are arranged in the downward screen drum 2 of casing 1 inner chamber intermediate openings being brought into by high velocity air through wind stopping device 14, feed pipe 12 under the power of the blowing effect of powder conveying fan 15, and by the impulsive force of buffering umbrella 13 reduction powder body to be fractionated in screen drum 2, make powder body to be fractionated in screen drum 2 interior dispersions; The order number of screen drum 2 is 500 orders;
2, the powder body to be fractionated of screen drum 2 interior dispersions carries out classification by screen drum 2 under air-introduced machine 5 effects, and fine powder negative pressure chamber 4 through casing 1 top under the negative-pressure air-flow effect that air-introduced machine 5 produces of passing screen drum 2 is transported to collect in the tornado feeder set 17 and namely gets the loose finished product of superfine powder Herba Portulacae.The powder body by screen drum 2 does not sink through collecting with the funnel 3 that screen drum 2 under sheds are connected mutually and being transported to again circulation pulverizing in the described rod mill 16 by pipeline 18;
3, door font rotation spray trachea rotates by rolling bearing 10 under drive motors 8 drives, the wind that aerator 11 is sent is in blast pipe 9 enters described transverse tube 6 and standpipe 7, and through be opened in vertically respectively the puff prot ejection that has the groove structure on transverse tube 6 and standpipe 7 tube walls towards screen drum 2 directions, form even blowback air-flow in screen drum 2 at screen drum 2 end faces and side, powder body in the screen drum 2 is further atomized, stop simultaneously powder body at screen drum 2 caking blocking screen mesh, make not powder body by screen drum 2 along with the air-flow whirlpool that forms sinks to entering in the funnel 3.The groove width that is opened in vertically respectively groove on transverse tube 6 and standpipe 7 tube walls is selected between 0.5 millimeter-2 millimeters as required, between the roof of transverse tube 6 and standpipe 7 and corresponding screen drum 2 and the sidewall apart from being respectively 25 millimeters.
The loose finished product of the superfine powder Herba Portulacae that obtains is sub-packed in the aluminium foil bag every bag heavy 1000g.
Claims (2)
1. the loose normal temperature preparation method of superfine powder Herba Portulacae is characterized in that: comprise the steps:
The first step, the Chinese crude drug Herba Portulacae is cleaned, dries, cut into the long section of 3-5cm, natural drying or dry to moisture≤10%;
Second step, under 20 ℃～25 ℃ the Chinese medicine of cutting is pulverized, obtaining granularity is 60-100 purpose coarse powder;
The 3rd step, with second step gained coarse powder place pulverize in the rod mill (16) after, be fed into special bilateral airflow sieving machine by wind and cross 500 mesh sieves, the air-flow that the powder that obtains particle diameter≤25 micron of sieving is produced by air-introduced machine (5) is transported to that collection namely gets the loose finished product of superfine powder Herba Portulacae in the tornado feeder set (17); The powder of not crossing 500 mesh sieves is transported to again circulation pulverizing in the described rod mill (16) through funnel (3) collection and by pipeline (18);
Described special bilateral airflow sieving machine is characterized in that: comprise casing (1) and the downward screen drum of chamber intermediate openings (2) that sets within it, the order number of described screen drum (2) 〉=500 orders; The nozzle of screen drum (2) is connected mutually with funnel (3) upper shed that is arranged on casing (1) bottom; Casing (1) inner chamber is connected with air-introduced machine (5) by the negative pressure chamber (4) on top; At the region division that is positioned between screen drum (2) and the casing (1) the door font rotation spray trachea that is made of transverse tube (6) and standpipe (7) is arranged, the puff prot of described door font rotation spray trachea is for axially being opened in groove on its tube wall along described transverse tube (6) and standpipe (7) respectively, described groove is offered towards screen drum (2) direction respectively, the groove width 0.5-2 millimeter of groove, the middle part of transverse tube (6) and drive motors (8) driving coupling; Be provided with blast pipe (9) in screen drum (2) centre position, the air outlet of described blast pipe (9) passes screen drum (2) and is connected with transverse tube (6) middle part of door font rotation spray trachea and is connected by rolling bearing (10) rolling; The air inlet of blast pipe (9) extends outside described funnel (3) sidewall and is connected with the blast orifice of aerator (11); In screen drum (2), be provided with feed pipe (12), be provided with buffering umbrella (13) in the discharging opening of described feed pipe (12) top, the charging aperture of feed pipe (12) extends outside funnel (3) sidewall and is communicated with powder conveying fan (15) air outlet through wind stopping device (14).
2. the loose normal temperature preparation method of superfine powder Herba Portulacae according to claim 1, it is characterized in that: the air inducing of described air-introduced machine (5) is pressed and is 1000pa, and the air inducing amount is 3000m
3/ h; The rotating speed of described drive motors (8) is 155 rev/mins; The blast pressure of described aerator (11) is 33kpa, and the blow rate required is 320m
3/ h; The wind pressure that goes out of described powder conveying fan (15) is 24kpa, and air output is 150m
3/ h; The sidewall of described screen drum (2) and roof respectively with corresponding standpipe (7) and transverse tube (6) between distance be 25 millimeters.
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| CN104095892A (en) * | 2014-08-07 | 2014-10-15 | 卜政安 | Extracting method for improving active ingredient content of purslane |
| CN108131897A (en) * | 2017-12-21 | 2018-06-08 | 郑州诚合信息技术有限公司 | A kind of powder drying device with screening function |
| CN108130774A (en) * | 2017-12-23 | 2018-06-08 | 郑州默尔电子信息技术有限公司 | Block-resistant type waste paper pulp crushing apparatus |
| CN111632736B (en) * | 2020-06-16 | 2021-12-14 | 甘肃中科聚合石油科技有限公司 | Multilayer backward flow formula polyacrylamide suspending agent raw materials grinder |
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| CN1375279A (en) * | 2001-03-21 | 2002-10-23 | 武汉莱奇尔中药现代化研究开发有限公司 | Micron Chinese medicine prepn. and its prepn. process |
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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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Effective date of registration: 20140418 Address after: 454971, Henan, Jiaozuo province Wuzhi Zhan Zhen Ma Ying Dong Patentee after: Henan Kang Xing Biotechnology Co., Ltd. Patentee after: Henan Health Star Pharmaceutical Co., Ltd. Address before: 451464, No. 2, Hing Road, Baisha Industrial Park, Zhongmu County, Henan, Zhengzhou Patentee before: Henan Health Star Pharmaceutical Co., Ltd. |