CN112570121A

CN112570121A - Method for finely grinding raw materials of direct oral decoction pieces

Info

Publication number: CN112570121A
Application number: CN202011244111.9A
Authority: CN
Inventors: 王超军; 王文韬; 刘凯; 卢亮; 蒋涛
Original assignee: Guilin Zhongnan Bozhou Pharmaceutical Technology Co Ltd
Current assignee: Guilin Zhongnan Bozhou Pharmaceutical Technology Co Ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-03-30
Anticipated expiration: 2040-11-10
Also published as: CN112570121B

Abstract

The invention discloses a method for finely grinding raw materials of direct oral decoction pieces, which has the advantages of less working procedures, simple operation and no need of excessive drying and deoiling in advance; the high-speed airflow is adopted to drive the medicine particles to collide with the inner wall of the metal and the tuning fork, so that the collision force is higher, and the crushing effect is better; the high-speed airflow carrying the medicine particles is sprayed by the spray heads in a staggered manner, so that the movement of the medicine particles is more disordered, the collision frequency is increased, low-temperature nitrogen gas is adopted for conveying in the whole process, the medicine is prevented from being oxidized and generating heat damage, the raw material particles are embrittled, and the crushing degree is improved; after the tuning fork is collided, sound waves with various frequencies can not be generated, the Brownian motion degree of the decoction piece powder is improved, the bonding phenomenon is weakened, and the crushing effect is further improved.

Description

Method for finely grinding raw materials of direct oral decoction pieces

Technical Field

The invention relates to the field of oral decoction piece powdering, in particular to a method for finely grinding direct oral decoction piece raw materials.

Background

The medicine is processed into oral decoction pieces from raw materials, and needs to be ground, so that the medicine property is more prominent, and the medicine is convenient for patients to absorb more easily. Therefore, the grinding standard of oral decoction pieces is generally that the more broken pieces are, the better the grinding is, the powder needs to be ground, and the fine powder is preferred.

The common method of grinding by hand or machine is difficult to grind the oral decoction pieces into micro powder, and the precision is not high enough. Therefore, the most popular micronizing apparatus for oral decoction pieces is jet mill, and the refining method for oral decoction piece raw material is designed around the jet mill.

However, I find in production that the jet mill has poor grinding effect on medicaments containing grease, moisture and fibers, and the effect is worse when the content is larger. Various types of jet mills are basically used for crushing by continuously rubbing and colliding small particles driven by high-speed airflow, and although the collision frequency is high, the collision force is small, so that the jet mills are suitable for crushing rigid substances. The medicines containing grease, water and fiber are all flexible and easy to be bonded. Accordingly, refining processes designed around jet mills typically require prior drying, de-oiling, and fiber breakage.

Wherein, the moisture is relatively solved, and most medicinal materials need to be dried or dried in the sun, and although the moisture can not be completely removed, the moisture is still satisfactory. The problems of grease and fiber are difficult to solve, and for the fiber, the process of breaking the fiber is the process of crushing the fiber; for oils and fats, some drugs are not suitable for removing too much oil and, after all, some trace elements are fat-soluble.

Therefore, the fine grinding method which is designed by taking the jet mill as a core is very complicated, the number of processes is large, the fine grinding effect of a plurality of decoction piece raw materials is not good enough, the medicine property is possibly damaged, and most importantly, some medicines are not suitable for being ground by the jet mill.

Disclosure of Invention

The invention aims to provide a method for finely grinding raw materials of direct oral decoction pieces, which has less working procedures and simple operation and does not need to be excessively dried and deoiled in advance; the high-speed airflow is adopted to drive the medicine particles to collide with the inner wall of the metal and the tuning fork, so that the collision force is higher, and the crushing effect is better; the high-speed airflow carrying the medicine particles is sprayed by the spray heads in a staggered manner, so that the movement of the medicine particles is more disordered, the collision frequency is increased, low-temperature nitrogen gas is adopted for conveying in the whole process, the medicine is prevented from being oxidized and generating heat damage, the raw material particles are embrittled, and the crushing degree is improved; after the tuning fork is collided, sound waves with various frequencies can not be generated, the Brownian motion degree of the decoction piece powder is improved, the bonding phenomenon is weakened, and the crushing effect is further improved.

The method for finely grinding the raw materials of the direct oral decoction pieces further comprises a micronizer, wherein the micronizer comprises a grinding mechanism, a flow distribution assembly, a crushing mechanism and a backflow assembly, the grinding mechanism comprises a grinding mortar, a storage tank is fixedly connected onto the grinding mortar, a plurality of material leaking holes are formed in the bottom of the grinding mortar, and backflow holes are further formed in the side wall of the grinding mortar;

the flow dividing assembly comprises a main flow pipe and a flow dividing pipe, the main flow pipe is fixedly connected to the bottom of the grinding mortar, the flow dividing pipe is communicated with the main flow pipe through an electromagnetic two-way valve, and the tail end of the flow dividing pipe is communicated with the first material dividing tank and the second material dividing tank through an electromagnetic three-way valve;

the crushing mechanism comprises a crushing generating pipe, the head end of the crushing generating pipe is communicated with a main flow pipe, five upper nozzles and five lower nozzles are arranged on the crushing generating pipe, the bottom of the first material distribution tank is communicated with the five upper nozzles through five branch pipes, the second material distribution tank is communicated with the five lower nozzles through five branch pipes, and the crushing generating pipe, the five upper nozzles and the five lower nozzles are respectively communicated with a first air compressor, a second air compressor and a third air compressor;

the backflow component comprises a discharge pipe and a backflow pipe, the head ends of the discharge pipe and the backflow pipe are communicated with the tail end of the generating pipe, and the tail end of the backflow pipe is divided into six paths to be communicated with the backflow hole;

the refining method comprises the steps of,

the method comprises the following steps: selecting decoction piece raw materials, cutting into blocks with uniform size, wherein the distance between any two points on the raw material blocks is not more than 20mm, then sending the raw material blocks into a dryer for drying, controlling the moisture content within 10%, and extruding and deoiling through oil absorption paper after drying to prepare semi-finished products;

step two: pouring the semi-finished product into a storage tank in the grinding mechanism, wherein a first air compressor works all the time, an electromagnetic two-way valve is controlled to be opened once every 12 seconds and is closed after 4 seconds after being opened, the electromagnetic three-way valve and the electromagnetic two-way valve are synchronously started and stopped, and the electromagnetic three-way valve is only communicated with one of a first material distributing tank or one of the first material distributing tank and a second material distributing tank when being opened every time and is communicated in a staggered way;

step three: and when the electromagnetic two-way valve is opened for 2s, the second air compressor or the third air compressor is started to work first, and when the electromagnetic two-way valve is closed for 2s, the second air compressor or the third air compressor is turned off, and the second air compressor and the third air compressor work in a staggered mode.

Preferably, a grinding pestle is arranged in the grinding mortar, the grinding pestle is fixedly connected to the lower end of the electric hammer piston, the electric hammer piston is in sliding connection with the grinding mortar, a feed port is arranged between the storage tank and the grinding mortar, the diameter of the feed port is larger than 30mm, and the diameter of the material leaking hole is 2 mm.

Preferably, the junction of mainstream pipe and shunt tubes is equipped with the flow distribution plate, flow distribution plate fixed connection is intraductal at the mainstream, and the contained angle between the vertical axis of flow distribution plate and mainstream pipe is 45, be equipped with a plurality of through-holes on the flow distribution plate, the diameter of all through-holes is 1.5 mm.

Preferably, the crushing generation pipe is provided with 10 tuning forks, the 10 tuning forks are in one-to-one correspondence with the 10 spray heads respectively, the tuning forks are fixedly connected to the inner wall of the crushing generation pipe, and an inner pipeline of the crushing generation pipe is a snake-shaped pipeline.

Preferably, be equipped with the screen cloth between crushing emergence pipe and the discharging pipe, the screen cloth passes through the torsional spring and is connected with crushing emergence pipe rotation, the upper end fixedly connected with cowl of screen cloth, cowl is located the back flow and smashes the kneck of emergence pipe.

Preferably, a first distributing fluid and a second distributing fluid are fixedly connected in the first distributing tank and the second distributing tank respectively.

Preferably, in the first step, whether the oil removing operation is performed by squeezing through the oil absorbing paper can be determined according to the oil content and the drug property of the decoction piece raw materials.

Preferably, in the third step, when the shunt pipe is communicated with the first material distribution tank, the second air compressor works;

and when the shunt pipe is communicated with the second distribution tank, the third air compressor works.

The invention has the advantages that:

1. the method is simple, the procedures are few, the implementation is easy, and most procedures do not need manual operation.

2. Excessive drying is not needed in advance, and only normal drying is needed; and the oil does not need to be completely removed, and only needs to be properly removed when the oil content is high.

3. Adopt high-speed air current area medicine granule and metal inner wall and pitch fork collision, the medicine granule not only collides each other, more collides with metal inner wall and pitch fork, compares in jet mill, and the collision dynamics is bigger, smashes the effect better to flexible medicine raw materials.

4. The high-speed air flow carrying the medicine particles is sprayed by the spray heads in a staggered mode, the air flow crushing effect is achieved, the snake-shaped metal inner wall and the plurality of tuning forks are matched, the medicine particles move in a more disordered mode, and the collision frequency is increased.

5. Adopt low temperature nitrogen gas to carry in whole journey, carry the medicine granule motion through low temperature nitrogen gas, avoid medicine and air contact oxidation promptly, also avoided collision friction to produce the heat and destroy the property of a medicine, still embrittled the raw materials granule simultaneously, improved crushing degree.

6. After the tuning fork is collided, the tuning fork shakes at high frequency, the collision frequency and the collision force are improved, sound waves with various frequencies can be generated, the sound waves with various frequencies are reflected back and forth in the snake-shaped metal inner wall and act on the powdered decoction pieces, the Brownian motion degree of the decoction piece powder is obviously improved even in a low-temperature environment, the bonding phenomenon of the decoction piece powder caused by grease moisture and the like is weakened, and the crushing effect is further improved.

Drawings

FIG. 1 is a schematic diagram of the structure of a micronizer of the invention;

FIG. 2 is a process flow diagram of the method of the present invention;

FIG. 3 is a three-dimensional view of the grinding mechanism of the present invention;

FIG. 4 is an enlarged view of portion L of FIG. 1;

FIG. 5 is a top sectional view of the grinding cup of the present invention;

FIG. 6 is an enlarged view of portion M of FIG. 1;

FIG. 7 is a schematic view of the internal structure of a single-stage pulverization generation tube according to the present invention;

FIG. 8 is an enlarged view of portion N of FIG. 1;

FIG. 9 is a three-dimensional view of a first dispensing can according to the present invention;

FIG. 10 is a top sectional view of a first bucket of the present invention;

FIG. 11 is a top sectional view of a second bucket of the present invention;

FIG. 12 is a schematic view of a tuning fork according to the present invention;

wherein, 1, grinding mechanism, 10, grinding mortar, 11, grinding pestle, 12, hammer piston, 13, feed inlet, 14, material leaking hole, 15, stock tank, 16, backflow hole, 2, diversion component, 20, main flow pipe, 21, diversion pipe, 22, diversion plate, 23, electromagnetic two-way valve, 24, electromagnetic three-way valve, 25, first diversion tank, 26, second diversion tank, 27, first diversion fluid, 28, second diversion fluid, 3, crushing mechanism, 30, crushing generating pipe, 31, air inlet pipe, 320, first upper nozzle, 321, second upper nozzle, 322, third upper nozzle, 323, fourth upper nozzle, 324, fifth upper nozzle, 330, first lower nozzle, 331, second lower nozzle, 332, third lower nozzle, 333, fourth lower nozzle, 334, fifth lower nozzle, 34, tuning fork, 4, backflow component, 40, discharge pipe, 41, backflow pipe, 42, screen, 43, backflow pipe, 42, 43, sieve, The air compressor comprises an arc-shaped baffle plate 5, a first air compressor 6, a second air compressor 7 and a third air compressor.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 12, a method for finely grinding a direct oral decoction piece raw material further comprises a micronizer, the micronizer comprises a grinding mechanism 1, a flow dividing assembly 2, a grinding mechanism 3 and a backflow assembly 4, the grinding mechanism 1 comprises a grinding mortar 10, a storage tank 15 is fixedly connected to the grinding mortar 10, a plurality of material leaking holes 14 are formed in the bottom of the grinding mortar 10, and a backflow hole 16 is further formed in the side wall of the grinding mortar 10;

the flow dividing assembly 2 comprises a main flow pipe 20 and a flow dividing pipe 21, the main flow pipe 20 is fixedly connected to the bottom of the grinding mortar 10, the flow dividing pipe 21 is communicated with the main flow pipe 20 through an electromagnetic two-way valve 23, and the tail end of the flow dividing pipe 21 is communicated with a first material dividing tank 25 and a second material dividing tank 26 through an electromagnetic three-way valve 24;

the crushing mechanism 3 comprises a crushing generating pipe 30, the head end of the crushing generating pipe 30 is communicated with the main flow pipe 20, five upper nozzles and five lower nozzles are arranged on the crushing generating pipe 30, the bottom of the first material distribution tank 25 is communicated with the five upper nozzles through five branch pipes, the second material distribution tank 26 is communicated with the five lower nozzles through five branch pipes, and the crushing generating pipe 30, the five upper nozzles and the five lower nozzles are respectively communicated with the first air compressor 5, the second air compressor 6 and the third air compressor 7; the first air compressor 5, the second air compressor 6 and the third air compressor 7 are all communicated with a cold nitrogen source to compress cold nitrogen, and the temperature of the cold nitrogen is about-15 ℃ to-25 ℃.

The backflow component 4 comprises a discharge pipe 40 and a backflow pipe 41, the head ends of the discharge pipe 40 and the backflow pipe 41 are both communicated with the tail end of the generating pipe 30, and the tail end of the backflow pipe 41 is divided into six paths to be communicated with the backflow hole 16;

the front end structure of the crush generation pipe 30, the structure of the five upper nozzles, and the structure of the five lower nozzles are the same as the principle structure of the vacuum generator, in which compressed cold nitrogen gas (connected to the laval nozzle through the pipe line a in the drawing) ejected from the first air compressor 5 enters the receiver pipe through the laval nozzle, the crush generation pipe 30 communicates with the receiver pipe, and the main flow pipe 20 communicates with the negative pressure chamber. The compressed cold nitrogen gas (pipelines B and C in the figure) sprayed by the second air compressor 6 and the third air compressor 7 flows to five upper nozzles (a first upper nozzle 320, a second upper nozzle 321, a third upper nozzle 322, a fourth upper nozzle 323, a fifth upper nozzle 324) and five lower nozzles (a first lower nozzle 330, a second lower nozzle 331, a third lower nozzle 332, a fourth lower nozzle 333 and a fifth lower nozzle 334) through 5 pipelines of branch pipes (B1-B5 and C1-C5), the laval nozzles in the upper nozzles and the lower nozzles face to the air outlet, and the negative pressure cavities in the 5 upper nozzles and the lower nozzles are respectively communicated with the first distributing tank 25 (through pipelines D1-D5) and the second distributing tank 26 (through pipelines E1-E5).

The refining method comprises the steps of,

step two: pouring the semi-finished product into a storage tank 15 in the grinding mechanism 1, wherein the first air compressor 5 works all the time, the electromagnetic two-way valve 23 is controlled to be opened once every 12 seconds and is closed after being opened for 4 seconds, the electromagnetic three-way valve 24 and the electromagnetic two-way valve 23 are synchronously started and stopped, and the electromagnetic three-way valve 24 is opened every time and only conducts the shunt pipe 21 and the first material distributing tank 25 or only conducts one of the shunt pipe 21 and the second material distributing tank 26, and the shunt pipe 21 and the second material distributing tank 26 are conducted in a;

step three: when the electromagnetic two-way valve 23 is opened for 2s, the second air compressor 6 or the third air compressor 7 is started to work first, when the electromagnetic two-way valve 23 is closed for 2s, the second air compressor 6 or the third air compressor 7 is turned off, and the second air compressor 6 and the third air compressor 7 work alternately.

The grinding mortar is characterized in that a grinding pestle 11 is arranged in the grinding mortar 10, the grinding pestle 11 is fixedly connected to the lower end of an electric hammer piston 12, the electric hammer piston 12 is in sliding connection with the grinding mortar 10, a feed inlet 13 is arranged between the storage tank 15 and the grinding mortar 10, the diameter of the feed inlet 13 is larger than 30mm, and the diameter of the material leaking hole 14 is 2 mm. The main flow pipe 20 is communicated with the negative pressure cavity, and raw material particles which are uniformly absorbed and mashed leak out of the material leakage hole 14 to enter a crushing link.

The junction of mainstream pipe 20 and shunt tubes 21 is equipped with flow distribution plate 22, flow distribution plate 22 fixed connection is in mainstream pipe 20, and the contained angle between the vertical axis of flow distribution plate 22 and mainstream pipe 20 is 45, be equipped with a plurality of through-holes on the flow distribution plate 22, the diameter of all through-holes is 1.5 mm. The splitter plate 22 divides the raw material particles into small particles and large particles, which are separately flowed through the main flow pipe 20 and the splitter 21, respectively, for differential processing.

The crushing generation pipe 30 is provided with 10 tuning forks 34, the 10 tuning forks 34 are respectively in one-to-one correspondence with 10 spray heads, the tuning forks 34 are fixedly connected to the inner wall of the crushing generation pipe 30, and the inner pipeline of the crushing generation pipe 30 is a snake-shaped pipeline. The crushing generation pipe 30 has 10 sections in total, the assembly is convenient, 2 tuning forks 34 in each section are respectively opposite to an upper spray head and a lower spray head, and large-particle decoction piece raw materials carried by high-speed airflow sprayed by the upper spray head and the lower spray head can be hit on the tuning forks 34.

A screen 42 is arranged between the crushing generation pipe 30 and the discharge pipe 40, the screen 42 is rotatably connected with the crushing generation pipe 30 through a torsion spring, the upper end of the screen 42 is fixedly connected with an arc baffle 43, and the arc baffle 43 is positioned at the interface of the return pipe 41 and the crushing generation pipe 30. The decoction piece raw material powder processed in the pulverization generating tube 30 passes through the screen 42 and is discharged through the discharge tube 40 to become a finished product. And for the granule decoction pieces raw materials of powderization can pile up before screen cloth 42, pile up after the certain degree, promptly after the windage grow that screen cloth 42 produced to the certain degree, screen cloth 42 can rotate under the wind-force effect, and then make cowl 43 rotate, until exposing back flow pipe 41, wind-force can take to pile up granule decoction pieces raw materials and pass through back flow pipe 41 and flow back to grinding mortar 10. Moreover, since the backflow holes 16 in the grinding mortar 10 are inclined downward and the 6 backflow holes 16 are spirally stepped, the cold nitrogen gas flowing back can disperse the raw material of the grinding mortar 10, thereby achieving the effects of uniformly stirring and preventing the raw material from being adhered to the inner wall of the grinding mortar 10.

A first distributing fluid 27 and a second distributing fluid 28 are fixedly connected in the first distributing tank 25 and the second distributing tank 26 respectively. The first and second partial flows 27 and 28 serve to uniformly flow the raw material particles into the 5 branch pipes.

In the first step, whether the oil removing operation is carried out by squeezing through the oil absorption paper can be determined according to the oil content and the drug property of the decoction piece raw materials.

In the third step, when the shunt pipe 21 is communicated with the first material distributing tank 25, the second air compressor 6 works;

when the shunt pipe 21 is communicated with the second distribution tank 26, the third air compressor 7 is operated.

The specific implementation mode and principle are as follows:

selecting decoction piece raw materials, cutting the decoction piece raw materials into blocks with uniform size, wherein the distance between any two points on the raw material blocks is not more than 20mm, brushing and selecting the raw material blocks with the size more than 20mm, cutting the raw material blocks again, then sending the raw material blocks into a dryer for drying, controlling the water content within 10 percent, determining whether to carry out extrusion degreasing operation through oil absorption paper according to the oil content and the drug property of the decoction piece raw materials, and if necessary, carrying out extrusion degreasing on the dried decoction piece raw materials through the oil absorption paper to prepare a semi-finished product;

pouring the semi-finished product into a storage tank 15 in the grinding mechanism 1, wherein the first air compressor 5 works all the time, continuously spraying low-temperature cold nitrogen, the main flow pipe 20 is communicated with the negative pressure cavity, so that the raw material particles which are uniformly absorbed and smashed can leak from the leakage hole 14, when the raw material particles pass through the diversion plate 22, the diversion plate 22 divides the raw material particles into small particles and large particles, the small particles enter the crushing generation pipe 30 through the main flow pipe 20, the large particles are temporarily accumulated at the diversion plate 22, the electromagnetic two-way valve 23 is controlled to be opened once every 12 seconds, the electromagnetic two-way valve 23 is closed after being opened for 4 seconds, the large particles are sucked away through the diversion pipe 21 after the electromagnetic two-way valve 23 is opened, the electromagnetic three-way valve 24 and the electromagnetic two-way valve 23 are synchronously opened, the electromagnetic three-way valve 24 only conducts the diversion pipe 21 and the first diversion tank 25 or only conducts the diversion pipe 21 and one of the second diversion, at this time, large particles enter the first material distributing tank 25 through the flow dividing pipe 21, the large particles are uniformly divided into 6 parts in the first material distributing tank 25, and enter the first upper nozzle 320, the second upper nozzle 321, the third upper nozzle 322, the fourth upper nozzle 323 and the fifth upper nozzle 324 through the pipelines D1-D5 (the pipelines D1-D5 are respectively connected with the negative pressure cavities of the 5 upper nozzles, so that suction force is generated),

when the electromagnetic two-way valve 23 is opened for 2 seconds, the second air compressor 6 is started to work first, cold nitrogen is sprayed and compressed to generate negative pressure, large particles are sprayed out from the nozzle, the sprayed large-particle decoction piece raw materials carried by high-speed airflow can strike the tuning fork 34, the tuning fork 34 vibrates at high frequency after being collided, collision frequency and collision force are improved, sound waves of various frequencies can be generated, the sound waves of various frequencies are reflected back and forth in the snakelike metal inner wall and act on the pulverized decoction pieces, the Brownian motion degree of the decoction piece powder is obviously improved even in a low-temperature environment, the bonding phenomenon of the decoction piece powder caused by grease moisture and the like is weakened, the crushing effect is further improved, the electromagnetic two-way valve 23 is closed for 2 seconds, and the second air compressor 6 is turned off again.

The decoction piece raw material powder processed in the pulverization generating tube 30 passes through the screen 42 and is discharged through the discharge tube 40 to become a finished product. And for the granule decoction pieces raw materials of powderization can pile up before screen cloth 42, pile up after the certain degree, promptly after the windage grow that screen cloth 42 produced to the certain degree, screen cloth 42 can rotate under the wind-force effect, and then make cowl 43 rotate, until exposing back flow pipe 41, wind-force can take to pile up granule decoction pieces raw materials and pass through back flow pipe 41 and flow back to grinding mortar 10. Moreover, since the backflow holes 16 in the grinding mortar 10 are inclined downward and the 6 backflow holes 16 are spirally stepped, the cold nitrogen gas flowing back can disperse the raw material of the grinding mortar 10, thereby achieving the effects of uniformly stirring and preventing the raw material from being adhered to the inner wall of the grinding mortar 10.

Based on the above, the method has the advantages of few working procedures, simple operation and no need of excessive drying and deoiling in advance; the high-speed airflow is adopted to drive the medicine particles to collide with the inner wall of the metal and the tuning fork, so that the collision force is higher, and the crushing effect is better; the high-speed airflow carrying the medicine particles is sprayed by the spray heads in a staggered manner, so that the movement of the medicine particles is more disordered, the collision frequency is increased, low-temperature nitrogen gas is adopted for conveying in the whole process, the medicine is prevented from being oxidized and generating heat damage, the raw material particles are embrittled, and the crushing degree is improved; after the tuning fork is collided, sound waves with various frequencies can not be generated, the Brownian motion degree of the decoction piece powder is improved, the bonding phenomenon is weakened, and the crushing effect is further improved.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. The method for finely grinding the raw materials of the direct oral decoction pieces is characterized by further comprising a micronizer, wherein the micronizer comprises a grinding mechanism (1), a shunt assembly (2), a crushing mechanism (3) and a backflow assembly (4), the grinding mechanism (1) comprises a grinding mortar (10), a storage trough (15) is fixedly connected to the grinding mortar (10), a plurality of material leaking holes (14) are formed in the bottom of the grinding mortar (10), and backflow holes (16) are formed in the side wall of the grinding mortar (10);

the flow dividing assembly (2) comprises a main flow pipe (20) and a flow dividing pipe (21), the main flow pipe (20) is fixedly connected to the bottom of the grinding mortar (10), the flow dividing pipe (21) is communicated with the main flow pipe (20) through an electromagnetic two-way valve (23), and the tail end of the flow dividing pipe (21) is communicated with a first material dividing tank (25) and a second material dividing tank (26) through an electromagnetic three-way valve (24);

the crushing mechanism (3) comprises a crushing generating pipe (30), the head end of the crushing generating pipe (30) is communicated with the main flow pipe (20), five upper spray heads and five lower spray heads are arranged on the crushing generating pipe (30), the bottom of the first material distribution tank (25) is communicated with the five upper spray heads through five branch pipes, the second material distribution tank (26) is communicated with the five lower spray heads through five branch pipes, and the crushing generating pipe (30), the five upper spray heads and the five lower spray heads are respectively communicated with the first air compressor (5), the second air compressor (6) and the third air compressor (7);

the backflow component (4) comprises a discharge pipe (40) and a backflow pipe (41), the head ends of the discharge pipe (40) and the backflow pipe (41) are communicated with the tail end of the generating pipe (30), and the tail end of the backflow pipe (41) is divided into six paths to be communicated with the backflow hole (16);

the refining method comprises the steps of,

step two: pouring the semi-finished product into a storage tank (15) in the grinding mechanism (1), wherein a first air compressor (5) works all the time, an electromagnetic two-way valve (23) is controlled to be opened once every 12 seconds and closed after being opened for 4 seconds, the electromagnetic three-way valve (24) and the electromagnetic two-way valve (23) are synchronously started and stopped, and the electromagnetic three-way valve (24) is opened every time and only conducts a flow dividing pipe (21) and a first material dividing tank (25) or only conducts one of the flow dividing pipe (21) and a second material dividing tank (26), and the two are conducted in a staggered way;

step three: when the electromagnetic two-way valve (23) is opened for 2s, the second air compressor (6) or the third air compressor (7) is started to work first, when the electromagnetic two-way valve (23) is closed for 2s, the second air compressor (6) or the third air compressor (7) is turned off, and the second air compressor (6) and the third air compressor (7) work in a staggered mode.

2. The method for refining raw materials of direct oral decoction pieces according to claim 1, wherein: be equipped with in grinding mortar (10) and grind pestle (11), grinding pestle (11) fixed connection is at the lower extreme of electric hammer piston (12), electric hammer piston (12) and grinding mortar (10) sliding connection, be equipped with feed inlet (13) between stock chest (15) and grinding mortar (10), feed inlet (13) diameter is greater than 30mm, the diameter of leaking material hole (14) is 2 mm.

3. The method for refining raw materials of direct oral decoction pieces according to claim 1, wherein: the junction of mainstream pipe (20) and shunt tubes (21) is equipped with flow distribution plate (22), flow distribution plate (22) fixed connection is in mainstream pipe (20), and the contained angle between the vertical axis of flow distribution plate (22) and mainstream pipe (20) is 45, be equipped with a plurality of through-holes on flow distribution plate (22), the diameter of all through-holes is 1.5 mm.

4. The method for refining raw materials of direct oral decoction pieces according to claim 1, wherein: the utility model discloses a crushing generating pipe, including crushing generating pipe (30), smash and be equipped with 10 tuning forks (34) in generating pipe (30), 10 tuning forks (34) respectively with 10 shower nozzles one-to-one, tuning fork (34) fixed connection is on the inner wall of crushing generating pipe (30), the interior pipeline of crushing generating pipe (30) is snakelike pipeline.

5. The method for refining raw materials of direct oral decoction pieces according to claim 1, wherein: smash and be equipped with screen cloth (42) between emergence pipe (30) and discharging pipe (40), screen cloth (42) rotate with crushing emergence pipe (30) through the torsional spring to be connected, the upper end fixedly connected with cowl (43) of screen cloth (42), cowl (43) are located back flow (41) and smash the kneck of emergence pipe (30).

6. The method for refining raw materials of direct oral decoction pieces according to claim 1, wherein: the first distributing tank (25) and the second distributing tank (26) are fixedly connected with a first distributing fluid (27) and a second distributing fluid (28) respectively.

7. The method for refining raw materials of direct oral decoction pieces according to claim 1, wherein: in the first step, whether the oil removing operation is carried out by squeezing through the oil absorption paper can be determined according to the oil content and the drug property of the decoction piece raw materials.

8. The method for refining raw materials of direct oral decoction pieces according to claim 1, wherein: in the third step, when the shunt pipe (21) is communicated with the first material distributing tank (25), the second air compressor (6) works;

when the shunt pipe (21) is communicated with the second distributing tank (26), the third air compressor (7) works.