CN102488720B - Preparation method for submicron pine needle powder at normal temperature and special bidirectional air-flow screening machine - Google Patents
Preparation method for submicron pine needle powder at normal temperature and special bidirectional air-flow screening machine Download PDFInfo
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- CN102488720B CN102488720B CN 201110382917 CN201110382917A CN102488720B CN 102488720 B CN102488720 B CN 102488720B CN 201110382917 CN201110382917 CN 201110382917 CN 201110382917 A CN201110382917 A CN 201110382917A CN 102488720 B CN102488720 B CN 102488720B
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Abstract
The invention discloses a preparation method for submicron pine needle powder at normal temperature. The method comprises the following steps: cutting the Chinese herbal medicine pine needle into long segments with a length of 3 to 5 cm and naturally drying the long segments until moisture content in the long segments is no more than 10%; crushing the long segments of pine needle at normal temperature so as to obtain coarse powder with a granularity of 60 to 80 meshes; grinding the obtained coarse powder in a rod mill, blowing the ground powder into a special bidirectional air-flow screening machine with wind for sieving with a 500-mesh sieve so as to obtain powder with a particle size of no more than 25 mu m and conveying the powder with air-flow generated by an induced draught fan to a cyclone material collector for collection so as to obtain a finished product of the submicron pine needle powder; collecting powder which is not screened by the 500-mesh sieve by a funnel and conveying the collected powder to the rod mill through a pipeline for secondary cyclic grinding. The invention has the following advantages: the whole preparation process is carried out at normal temperature, and no low temperature condition or a special additional condition is needed; the prepared finished product has a particle size of no more than 25 mu m, which enables a cell-wall breaking ratio and bioavailability to be substantially improved; the bidirectional air-flow screening machine used in the invention enables the preparation method for the submicron pine needle powder to be simplified.
Description
Technical field
The present invention relates to the veterinary drug preparation field, especially relate to the diffusing normal temperature preparation method of superfine powder Folium Pini; The invention still further relates to the special-purpose two-way airflow screening machine for this method.
Background technology
Using Chinese herbal medicine additive and prevent and treat eqpidemic disease, substitute and reduce chemical drugs, antibiotic dosage, produces nuisanceless " green livestock and poultry product ", is that current expansion livestock products export, and that improves the quality of products presses for.Be used for raising with different usings method and prescription, improve Abwehrkraft des Koepers, promote growth, reduced the residual drawback of medicine, played the effect of " treating both the principal and secondary aspects of a disease ", be worthy to be popularized.How preventing and treating eqpidemic disease, improve the health level of poultry, accomplish both to prevent and cure diseases, can promote growth again, improve laying rate, meat productivity, and can prevent the drawback of drug resistance and drug residue, is current aquaculture problem anxious to be solved.Using Chinese herbal medicine additive, adopt the method for preventing and treating of the combination of Chinese and Western medicine, is the effective way of dealing with problems.Prove that Chinese herbal medicine additive has the eqpidemic disease of preventing and treating, health invigorating, promotion appetite, promotes growth and improve laying rate, meat productivity, improves the good action of animal products quality through a large amount of production practices.Be to implement " pollution-free food " engineering from now on, direction and the way of development safety, health, nutrition, health, environment-friendly type aquaculture.
Pine needle powder is young shoot and the needle under pruning when fostering young pine forest, forms through collection, drying, pulverizing.The Folium Pini pink colour is green, fragrant, and not only nutrient substance is abundant, also has effects such as spleen invigorating is regulated the flow of vital energy, dispeiling pathogenic wind and removing dampness, killing parasites for relieving itching, blood-promoting and mind-easing, is the higher additive for farm animal feed of a kind of nutritive value of people's exploitation in recent years.In animal and fowl fodder, add pine needle powder, not only can improve immunity, the resistance against diseases of poultry, reduce the veterinary drug consumption, and can improve growth and the fertility performance of poultry, the medicine that can also improve the quality of animal products such as meat egg and reduce in the animal products is residual, meets the requirement that people pursue natural green food.
The broken technology of Chinese medicine ultra-fine powder is renewal and the development to traditional crushing technology; 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 Chinese medicine ultra-fine powder large-scale production for animals.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 the granularity that requires need prolong the pulverizing time significantly, make crush efficiency reduce, 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, influenced the quality of production of herbal medicine compound recipe superfine powder greatly, especially when being applied to the use of animal drinking-water, 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 is sieved, 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 Folium Pini normal temperature preparation method that looses, efficiently solve have in the present Chinese medicine production that energy consumption is big, 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, make the finished medicines of preparation have rapid-action, good effect, bioavailability height, effect that the clinical application amount is few.
Another purpose of the present invention is to provide a kind of special-purpose two-way airflow screening machine that is applied to the diffusing normal temperature preparation method of superfine powder Folium Pini.
The superfine powder Folium Pini of the present invention normal temperature preparation method that looses comprises the steps:
The first step, with the roguing of Chinese crude drug Folium Pini, clean, dry, cut into the long section of 3-5cm, natural drying or dry to moisture≤10%;
Second goes on foot, under 20 ℃～25 ℃ the Folium Pini of cutting is pulverized, and obtaining granularity is 60-80 purpose coarse powder;
The 3rd step, with the second step gained coarse powder place pulverize in the rod mill after, be fed into special-purpose two-way airflow screening 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 superfine powder Folium Pini finished product that looses; The powder of not crossing 500 mesh sieves arrives circulation pulverizing again in the described rod mill through the funnel collection and by line transportation.
Special-purpose two-way airflow screening 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; Be provided with the door font rotary jet pipe that is constituted by transverse tube and standpipe in the zone between screen drum and casing, the puff prot of described door font rotary jet pipe 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 rotary jet pipe 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 process of preparation all carries out at normal temperatures, do not need low temperature or special additional conditions; Final drug particle diameter≤25 micron of preparation have been improved cell wall breaking rate and bioavailability greatly, have strengthened the pharmacological action of medicine, 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 two-way airflow screening machine that uses in the inventive method has been simplified the preparation technology that the superfine powder Folium Pini looses 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 Folium Pini powder preparation of the inventive method preparation is verified by following test: the superfine powder Folium Pini looses to the influence test of growth pig fertility performance
The superfine powder Folium Pini looses: adopt the inventive method preparation;
The Folium Pini coarse powder: 80 order coarse powder, make by oneself at laboratory;
Experimental animal: select for use Hebi City scale pig farm, Henan Province age in days close, about body weight 33kg, 60 of healthy DLY hybrid growth pigs.
EXPERIMENTAL DESIGN: 60 DLY hybrid growth pigs are divided into 3 groups, 20 every group at random.Be grouped as follows: test I group: the superfine powder Folium Pini looses and organizes, and the basal diet of feeding+3% superfine powder Folium Pini looses; Test II group: Folium Pini coarse powder group, the basal diet of feeding+3% Folium Pini coarse powder; III group: blank group, the basal diet of only feeding.Preliminary trial period 5d is just trying phase 40d.
The test daily ration: basal diet, is added the superfine powder Folium Pini in proportion respectively according to EXPERIMENTAL DESIGN and looses and coarse powder by the feeding standard autogamy by the pig farm, and mix homogeneously.
Feeding and management: test is being carried out with the building pig house, is responsible for feeding and management by same poultry raiser, free choice feeding, freely drink water, routine immunization, at the beginning of experimental period, weigh last morning on an empty stomach.After the off-test, calculate average daily gain, the price of deed.Concrete outcome sees Table 1 and table 2.
The various average daily gains of table 1 test
| Group | Quantity/head | Average starting weight/kg | Average end weight/kg | Average daily gain/g | Comparison/% |
| Ⅰ | 20 | 34.0±0.40 | 63.3±1.30 | 732.5 | 114.4 |
| Ⅱ | 20 | 33.7±0.70 | 60.5±1.80 | 677.5 | 105.8 |
| Ⅲ | 20 | 34.5±0.60 | 60.1±1.60 | 640.0 | 100.0 |
By table 1 as seen, through the 40d feeding experiment, an amount of interpolation superfine powder Folium Pini looses and can effectively improve the daily gain of growth pig with the Folium Pini coarse powder in daily ration, and test I group be you can well imagine high by 14.4%, 5.8%(P＜0.05 with test II group ratio contrast component).The superfine powder Folium Pini looses group then than Folium Pini coarse powder group raising 8.1%, significant difference (P＜0.05).
Table 2 experimental period feed intake and material anharmonic ratio are measured
| Group | Quantity/head | Head is feed consumption rate/kg all | Experimental period weightening finish/kg | Head is daily ingestion amount/g all | Feed intake comparison/% | The material anharmonic ratio | Material anharmonic ratio comparison/% |
| Ⅰ | 20 | 78.65 | 29.3 | 1966 | 105.1 | 2.68 | 91.8 |
| Ⅱ | 20 | 76.44 | 26.8 | 1911 | 102.2 | 2.85 | 97.6 |
| Ⅲ | 20 | 74.8 | 25.6 | 1870 | 100.0 | 2.92 | 100.0 |
By table 2 as seen, through the 40d feeding experiment, the average daily ingestion amount of the test pig of 2 test group all is significantly improved, and test I group is compared with matched group with the II group and improved 5.1%, 2.2% respectively, and the material anharmonic ratio then reduces by 8.2%, 2.4% respectively.Test I group is compared with the II group, and the I group improves 2.8% than the average daily ingestion amount of II group, and the material anharmonic ratio reduces 5.9%(P＜0.05).
This shows, after interpolation superfine powder Folium Pini looses in the growth swine rations, overcome the shortcoming that protein content is on the low side, digestible energy is higher in general farmers' feedstuff and the commercially available premix material.And then improve daily gain and the feed intake of growth pig greatly, reduce the material anharmonic ratio, thereby more significantly increase economic efficiency.
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-purpose two-way airflow screening machine of the present invention.
The specific embodiment
As shown in Figure 1, 2, the superfine powder Folium Pini of the present invention normal temperature preparation method that looses comprises the steps:
The first step, with the roguing of Chinese crude drug Folium Pini, clean, dry, cut into the long section of 3-5cm, natural drying or dry to moisture≤10%;
Second goes on foot, under 20 ℃～25 ℃ the Folium Pini of cutting is pulverized, and obtaining granularity is 60-80 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, the second step gained coarse powder is placed pulverize in the rod mill 16 after, 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 in the rod mill 16, and by the impulsive force of buffering umbrella 13 reduction powder body to be fractionated in screen drum 2, powder body to be fractionated is disperseed in screen drum 2; The order number of screen drum 2 is 500 orders;
2, the powder body to be fractionated that disperse in the screen drum 2 carry 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 and collects the superfine powder Folium Pini that namely the gets particle diameter≤25 micron finished product that looses in the tornado feeder set 17.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 circulation pulverizing again in the described rod mill 16 by pipeline 18;
3, door font rotary jet pipe 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 the puff prot ejection that has the groove structure on transverse tube 6 and standpipe 7 tube walls respectively vertically 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 powder body to stop up sieve screen apertures at screen drum 2 caking simultaneously, 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 groove on transverse tube 6 and standpipe 7 tube walls is respectively vertically 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 diffusing finished product of superfine powder Folium Pini that obtains is sub-packed in the aluminium foil bag, and every bag weighs 500g or 1000g.
Claims (2)
1. the diffusing normal temperature preparation method of superfine powder Folium Pini is characterized in that: comprise the steps:
The first step, with the roguing of Chinese crude drug Folium Pini, clean, dry, cut into the long section of 3-5cm, natural drying or dry to moisture≤10%;
Second goes on foot, under 20 ℃～25 ℃ the Folium Pini of cutting is pulverized, and obtaining granularity is 60-80 purpose coarse powder;
The 3rd step, with the second step gained coarse powder place pulverize in the rod mill (16) after, be fed into special-purpose two-way airflow screening 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 in the tornado feeder set (17) collection and namely gets the superfine powder Folium Pini finished product that looses; The powder of not crossing 500 mesh sieves is transported to circulation pulverizing again in the described rod mill (16) through funnel (3) collection and by pipeline (18);
Described special-purpose two-way airflow screening 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; Be provided with the door font rotary jet pipe that is constituted by transverse tube (6) and standpipe (7) in the zone that is positioned between screen drum (2) and the casing (1), the puff prot of described door font rotary jet pipe 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 rotary jet pipe 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 superfine powder Folium Pini according to claim 1 normal temperature preparation method that looses, 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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| CN102423333B (en) * | 2011-11-28 | 2013-12-04 | 河南省康星药业股份有限公司 | Ultramicro powder epimedium constant-temperature preparation method |
| CN102397452B (en) * | 2011-11-28 | 2013-09-25 | 河南省康星药业股份有限公司 | Submicron powder cough powder normal temperature preparation method |
| CN102397163B (en) * | 2011-11-28 | 2014-02-12 | 河南省康星药业股份有限公司 | Method for preparing ultrafine medicine terminalia fruit, gardenia and szechwan chinaberry fruit powder at normal temperature |
| CN102397370B (en) * | 2011-11-28 | 2013-08-28 | 河南省康星药业股份有限公司 | Submicron powder Jinfang Baidu San normal temperature preparation method and special two-way airflow screen grader |
| CN102406675B (en) * | 2011-11-28 | 2013-09-25 | 河南省康星药业股份有限公司 | Room-temperature preparation method of ultramicro powder angelica |
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| CN101485444A (en) * | 2009-02-17 | 2009-07-22 | 蒋月秋 | Technique for preparing natural pine needle powder |
| CN101759727B (en) * | 2009-09-30 | 2013-03-27 | 钱娟 | Nano-scale pine bark extract and preparation method thereof |
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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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Inventor after: Xing Yujuan Inventor after: Li Rongyu Inventor after: Song Yongqi Inventor after: Shen Yanmin Inventor after: Jia Yanhua Inventor after: Liu Hongqiang Inventor before: Li Rongyu Inventor before: Song Yongqi Inventor before: Shen Yanmin Inventor before: Jia Yanhua Inventor before: Liu Hongqiang |
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