CN109382218B

CN109382218B - Screening process for simultaneously screening folium isatidis and radix isatidis

Info

Publication number: CN109382218B
Application number: CN201811172801.0A
Authority: CN
Inventors: 周豪
Original assignee: Bozhou Pinzheng Agricultural Development Co Ltd
Current assignee: Bozhou Pinzheng Agricultural Development Co., Ltd
Priority date: 2018-10-09
Filing date: 2018-10-09
Publication date: 2020-08-14
Anticipated expiration: 2038-10-09
Also published as: CN109382218A

Abstract

The invention discloses a screening process for simultaneously screening folium isatidis and radix isatidis, which comprises the following steps: (A) obtaining folium Isatidis and radix Isatidis from Isatis tinctoria; (B) opening the top cover, and pouring the radix isatidis and the folium isatidis into the shell simultaneously; (C) starting a motor, and driving the support frame and the shell to rotate by the motor; (D) starting a blower; (E) closing the blower, starting the exhaust fan, and extracting the folium isatidis out of the shell through the exhaust pipe under the action of negative pressure; (F) observing through the observation port, and turning off the exhaust fan and the motor after the dyers woad leaf basically leaves the shell; (G) taking out the dyers woad leaf from a dyers woad leaf collector connected with an exhaust pipe, controlling a piston rod of a hydraulic cylinder to vertically move downwards, pushing a movable end of a bottom cover to open by virtue of the gravity of the dyers woad leaf stacked on the bottom cover, and collecting the dyers woad leaf; (H) and opening the inner sieve plate, taking out the sand collected in the slag collecting cavity, and cleaning the inside of the shell.

Description

Screening process for simultaneously screening folium isatidis and radix isatidis

Technical Field

The invention relates to the field of production of traditional Chinese medicine decoction pieces, and particularly relates to a screening process for simultaneously screening folium isatidis and radix isatidis.

Background

Isatis tinctoria is also known as tea-flower, a plant of Cruciferae. Upright stem, green, multi-branch at the top, smooth and hairless plant with white frost, and cultivated all over the country. Since ancient times, Isatis tinctoria can be used for dyeing, and another very important role is to be used as a medicine.

The leaves of Isatis Tinctoria, called Da Qing Ye, are indicated for macula, erysipelas, sore throat, aphtha of the mouth and tongue, sores and abscess. In addition to treating the above symptoms, the medicine can also be used for treating phlegm heat stagnation in lung and yellow and thick expectoration; especially for epidemic encephalitis B, it can be used alone for prevention, and can be combined with chai Hu, Yin Hua, Lian Qiao, ban lan Gen, Xuan Shen, Sheng Di Huang, etc. to clear heat-toxicity in qi system and nutrient system, so it is suitable for various types of encephalitis B, especially for heat type.

The root of isatis indigotica fort is also called as radix isatidis, which is commonly used for epidemic febrile disease, fever, sore throat, epidemic febrile, macula, mumps, erysipelas, large-headed plague, erysipelas and carbuncle.

Before the traditional Chinese medicinal materials are tabletted, the traditional Chinese medicinal materials, gravel slag and other gravels which are useless for pharmacy need to be removed. For isatis tinctoria, its roots and leaves can be used as raw materials, but the screening method of the roots, leaves and crushed stones is different, so that isatis tinctoria and crushed stones are usually separated by a vibrating screen, while isatis tinctoria and crushed stones are separated by a winnowing machine. Therefore, traditional Chinese medicine manufacturing enterprises need to configure two different screening machines for different screening, not only the power consumption of the machines is increased and the workload of workers is increased, but also the dyers woad leaf and the isatis root need to be separated manually in the previous step, the process time is increased, and the production efficiency is reduced.

Disclosure of Invention

The invention aims to provide a screening process for simultaneously screening folium isatidis and radix isatidis, and aims to solve the problems that in the prior art, the folium isatidis and the radix isatidis need to be screened by different screening devices, and meanwhile, the screening process of the folium isatidis and the radix isatidis needs to be arranged in the previous step, so that the power consumption of a machine is increased, the workload of workers is increased, the production efficiency is low, and the like.

The invention is realized by the following technical scheme:

a screening process for simultaneously screening folium Isatidis and radix Isatidis comprises the following steps:

(A) obtaining folium Isatidis and radix Isatidis from Isatis tinctoria;

(B) opening the top cover, and pouring the radix isatidis and the folium isatidis into the shell simultaneously;

(C) starting a motor, and driving the support frame and the shell to rotate by the motor;

(D) starting the blower to blow off the folium isatidis accumulated on the bottom surface of the shell, and simultaneously blowing sand on the radix isatidis away from the radix isatidis;

(E) closing the blower, starting the exhaust fan, and under the action of negative pressure, moving the folium isatidis along with flowing air from bottom to top and finally exhausting the folium isatidis out of the shell through the exhaust pipe;

(F) observing through the observation port, and turning off the exhaust fan and the motor after the dyers woad leaf basically leaves the shell;

(G) taking out the dyers woad leaf from a dyers woad leaf collector connected with an exhaust pipe, controlling a piston rod of a hydraulic cylinder to vertically move downwards, pushing a movable end of a bottom cover to open by virtue of the gravity of the dyers woad leaf stacked on the bottom cover, and collecting the dyers woad leaf;

(H) opening the inner sieve plate, taking out the sand collected in the slag collecting cavity, and cleaning the inner part of the shell; the step comprises a support frame and a shell arranged in the support frame, wherein a plurality of horizontal support rods used for supporting and fixing the shell are arranged in the support frame, a gap is arranged between the bottom surface of the support frame and the lower surface of the shell, a drive rod is fixed on the lower surface of the support frame, and the drive rod is connected with the output end of a motor; the diameter of the shell is gradually increased and then gradually reduced from top to bottom, the top end of the shell is an open end, the bottom end of the shell is a closed end, a discharge opening is formed in the closed end of the shell, a bottom cover is hinged in the discharge opening, a hydraulic cylinder is arranged below the bottom cover, and the hydraulic cylinder is fixed on the bottom surface of the support frame; a placing table is fixed on the top end of the shell, a feeding cylinder is placed on the placing table and is communicated with the shell, a top cover is arranged at the top of the feeding cylinder, a fixing rod is fixed on the outer wall of the feeding cylinder and is fixed on an external support piece, an exhaust pipe and a blast main pipe are arranged on the side wall of the feeding cylinder, the exhaust pipe is connected with an exhaust fan, the air inlet end of the blast main pipe is connected with a blower, the air outlet end of the blast main pipe extends into the shell, the air outlet end of the blast main pipe faces downwards vertically, a plurality of blast branch pipes are arranged on the blast main pipe, an extension rubber pipe is arranged on the air outlet end of each blast branch pipe, a plurality of bristles are arranged on the side wall of each extension rubber pipe, a spoiler is horizontally placed inside each extension rubber pipe, and the upper surface and the lower surface of each spoiler are connected with the inner wall of, the air outlet of the extension rubber pipe faces the inner wall of the shell; the inner wall of the shell is provided with a plurality of slag collecting grooves, the slag collecting grooves are arranged along the circumferential direction of the shell, a sieve plate is arranged on each slag collecting groove, the inner part of each sieve plate and the corresponding slag collecting groove form a slag collecting cavity, each sieve plate is made of flexible materials, a plurality of sieve holes are formed in each sieve plate, the distance between every two adjacent sieve holes is gradually reduced from top to bottom and then gradually increased, the top of each slag collecting cavity is provided with a pressure relief hole, and the pressure relief holes are communicated with the slag collecting cavities and the inner space of the shell; the top cover is provided with an observation port, and a glass observation plate is arranged in the observation port.

In the prior art, when processing the isatis tinctoria, firstly, the roots and the leaves of the isatis tinctoria are respectively taken down and then the leaves are manually picked out. Then, separating the folium isatidis from gravels such as gravel slag adhered and wrapped by the folium isatidis by using a winnowing machine, wherein the quality of the folium isatidis and the gravels and the buoyancy of the folium isatidis in the air are different; and separating sand and stone such as the adhered and mixed broken stone slag of the isatis root by using a vibrating screen or a centrifugal machine, wherein the vibrating screen or the centrifugal machine is used for vibration separation or centrifugal separation. Therefore, in the traditional isatis tinctoria processing technology, a winnowing machine and a vibrating screen need to be equipped at the same time, and three procedures of a picking technology, an indigowoad leaf screening technology and an indigowoad root screening technology need to be arranged, so that the problems of high production cost, high labor intensity of workers, low production efficiency and the like exist, and the development of automation and intellectualization of a traditional Chinese medicine manufacturing technology is not facilitated.

In order to solve the problems, the invention designs the integrated isatis tinctoria treating device which can remove gravels wrapped, adhered and mixed in isatis tinctoria and isatis indigotica fort leaves and can omit the picking process of isatis tinctoria leaves. Three processes of the traditional process are integrated into one process, so that the screening efficiency is remarkably improved.

Specifically, this application includes the support frame, is provided with the shell in the support frame, is provided with many horizontal support poles in the support frame, and horizontal support pole's effect lies in the bearing, and the shell is placed back on horizontal support pole, and the outer wall of shell passes through detachable connected modes such as threaded connection, with shell and horizontal support pole relatively fixed, and then realizes the relatively fixed of shell and support frame. The output that the actuating lever of the lower fixed surface of support frame is used for connecting the motor for under the drive of motor, the support frame can be rotatory around its vertical axis, preferably, the vertical axis collineation of the vertical axis of support frame, the vertical axis of shell and the vertical axis of actuating lever, the support frame can improve the rotational stability and the security of shell.

The diameter of shell is from last to increasing gradually again and reducing gradually down, and preferably, the shell adopts two segmentation designs from top to bottom, and the diameter of upper segment is from last to increasing gradually down, and the diameter of hypomere is from last to reducing gradually down, and through this kind of design, the air that flows is difficult for producing local vortex at two sections junctions from top to bottom, and it is more smooth and easy to flow, and the air that is convenient for flow carries the dyers woad leaf. The top end of the shell is an open end, the bottom end of the shell is a closed end, and a discharge hole is formed in the bottom end of the shell and used for discharging the screened radix isatidis from the shell. Hinged joint has the bottom in the discharge opening, and the below of bottom is provided with the pneumatic cylinder, and the pneumatic cylinder is fixed on the bottom surface of support frame, and when the bottom was closed, the piston rod top of pneumatic cylinder supported the bottom, and when the isatis root was taken out to needs, the control hydraulic pump made the piston rod vertical downstream, and the expansion end of bottom overturns around its hinged end, opens the bottom, and the isatis root rolls to the shell outside from the expansion end of the bottom of opening and collects. The hydraulic pump may be operated manually by a worker or may be controlled by a control system. It should be understood by those skilled in the art that the driving rod in the present application has only a transmission function and is not used for bearing the supporting frame, and the bearing of the supporting frame can depend on an external support.

The placing table arranged on the opening end at the top of the shell is used for placing a feeding cylinder, and the feeding cylinder is communicated with the inside of the shell, so that a worker can feed materials into the shell through the feeding cylinder. In this application, the bottom of feed cylinder only with place the platform contact to do not fix on placing the platform. The top of the feeding cylinder is provided with a top cover. The outer wall of the feeding cylinder is fixed with a fixing rod, the fixing rod is fixed on an external supporting piece, such as a wall, and an external support, when the shell and the support rotate under the action of the motor, the feeding cylinder is kept still, and the bottom of the feeding cylinder is always in contact with the placing table.

An exhaust pipe and a blast main pipe are arranged on the side wall of the feeding cylinder, the exhaust pipe is connected with an exhaust fan and a folium isatidis collector and is mainly used for providing negative pressure in the shell, and the folium isatidis is extracted from the exhaust pipe and collected by the folium isatidis collector. And the main blower pipe is connected with a blower or an air compressor and is mainly used for providing positive pressure into the shell. The main blower pipe has two functions, on one hand, the air outlet end of the main blower pipe is vertically downward and is used for blowing up the folium isatidis when the folium isatidis, the radix isatidis and the sand stone are mutually mixed together at the initial rotation of the shell or blowing away the radix isatidis, so that the subsequent negative pressure is conveniently provided for pumping away the folium isatidis; on the other hand, still be provided with many blast branch pipes on the blast main pipe, the exit end of blast branch pipe is towards the shell inner wall, and the sand and stone on the isatis root that rotates the expansion through centrifugal force on with the shell inner wall of being convenient for blow off the isatis root in the malleation stage, and the sand and stone is blown in to the collection sediment groove on the shell inner wall under the combined action of centrifugal force and wind-force in, realizes the separation of isatis root and sand and stone. The slag collecting groove is of a circular ring-shaped structure arranged along the circumferential direction of the shell, and preferably, the vertical central axis of the slag collecting groove is collinear with the vertical central axis of the shell. Be provided with the sieve on the sediment groove that gathers, the sieve is inside constitutes the sediment chamber that gathers with the sediment groove that gathers, and the sieve is flexible sieve, can be made by leather or rubber, is provided with a plurality of sieve meshes on the sieve, and when the isatis root was located the sieve, under the rotatory produced centrifugal force effect of shell, the isatis root can extrude the sieve for the sieve produces the deformation of certain degree, and the through-hole grow on the sieve is favorable to the grit to pass through the sieve mesh and falls into and gathers in the sediment chamber. Preferably, distance between two adjacent sieve meshes is from last to reducing gradually again crescent down earlier, through this design, the sieve mesh at middle part is denser, be favorable to most grit to pass through from the sieve mesh after deformation, and when the sieve middle part was dragged, the orientation of the sieve mesh of sieve bottom can change, no longer just inside the shell, and sieve mesh inner channel can warp the compression, be unfavorable for the grit to pass through, make the grit of gathering the collection sediment intracavity collection difficult fall back to in the shell from the sieve mesh of bottom, finally by the extruded in-process at the sieve, the grit that falls into the collection sediment intracavity is piled up in collection sediment chamber bottom because of the action of gravity, with this reach fine screening effect.

After the flowing air enters the slag collecting cavity, the slag collecting cavity is of a closed structure, so that the flowing air is easy to generate vortex in the slag collecting cavity, the external air cannot normally enter the slag collecting cavity, and meanwhile, partial gravels in the slag collecting cavity can be rolled out of the slag collecting cavity by the vortex. In order to solve the problems, the top of the slag collecting cavity is also provided with a pressure relief hole, and the pressure relief hole is communicated with the slag collecting cavity and the inner space of the shell. Through this structure, after the sediment chamber is gathered in the air that flows dashes, can return to inside the shell from the pressure release hole, avoid gathering the sediment intracavity and form the vortex, ensure that outside air can get into smoothly in the sediment chamber that gathers. Preferably, the pressure release hole includes vertical section and horizontal segment, and wherein, the top surface in album cinder notch is connected to vertical section, and the inner wall of shell is connected to the horizontal segment, and this structure ensures that when flowing air passes through the pressure release hole, the grit that its smugglied is difficult for returning to inside the shell through the pressure release hole.

As a preferred embodiment of the invention the blower branch pipes are made of metal, for example aluminium alloy. The air-out of blast air branch pipe is served and is installed the extension rubber tube of being made by rubber, is provided with many brush hairs on the lateral wall of extension rubber tube, and the inside level of extension rubber tube is provided with the spoiler, and the upper surface and the lower surface of spoiler all are connected through the inner wall of second spring with the extension rubber tube. Through this structure, mobile air is responsible for from the blast air and removes to the blast air branch pipe after, and the mobile air that accelerates gets into the extension rubber tube in the blast air branch pipe, and mobile air causes the spoiler luffing motion when passing through the spoiler, and the elastic force of second spring aggravates the amplitude of fluctuation on the one hand, and on the other hand pulls the air outlet luffing motion of extension rubber tube. The swing of the rubber pipe and the diversion of the spoiler are prolonged, so that the air sprayed to the inner wall of the flowing air shell is not towards a fixed direction any more, but is swept within a certain range, the air blowing area is enlarged, the adhered and mixed gravels on the isatis root can be blown off more favorably, and the air blowing efficiency is obviously improved. Meanwhile, if the bristles on the outer wall of the swinging extension rubber tube are in contact with the isatis root, the bristles can also play a role in scouring the surface of the isatis root, and the removal rate of sand on the surface of the isatis root can be further improved.

When the device works, the top cover is opened, and the dyers woad leaf and the isatis root cut from the isatis tinctoria are poured into the shell together through the feeding cylinder. Then the motor is started, and the shell rotates around the central axis thereof to generate centrifugal force under the driving of the motor. The isatis root and the sand have larger mass, so the centrifugal force is larger, the isatis root and the sand gradually move towards the inclined inner wall of the shell in the rotating process, and finally the isatis root and the sand move along the circumferential direction of the inner wall of the shell. Then the blower is turned on, and the flowing air enters the interior of the shell from the blower main pipe. Part of flowing air is blown to the bottom surface of the shell from the air outlet end of the main blower pipe, preferably, the vertical central axis of the main blower pipe is concentric with the vertical central axis of the shell, so that the air sprayed from the air outlet end can blow up the indigowoad leaf accumulated at the bottom, and the situation that part of indigowoad leaf is pressed or mixed by isatis root or sand stone is avoided, and the primary screening effect of increasing the gap between the indigowoad leaf and the indigowoad root or sand stone is achieved; the air that another part flows passes through the blast pipe branch, the extension rubber tube blows to the inner wall of shell, it is mingled with to make the isatis root that removes the expansion on the shell inner wall, the adhesion, the grit of parcel breaks away from gradually and moves to the shell inner wall on, grit on the shell inner wall enters into the sediment chamber of gathering through the sieve mesh on the sieve under the combined action of centrifugal force and wind-force, and pile up in sediment intracavity portion that gathers together, because the distance of the adjacent sieve mesh of sieve is great at the middle part, and less in the bottom, the attribute that can produce deformation of recombination sieve, make the sieve when receiving the isatis root extrusion, the sieve middle part is easy to pass through the grit and the sieve bottom is difficult to pass through the grit, control the grit effectively in. After blowing air for a period of time, the air blower is stopped, the exhaust fan is started, the shell continues to rotate at the moment, the sand and stone are ensured to stay in the slag collecting cavity, and the phenomenon that the isatis root is accumulated at the bottom to prevent the dyers woad leaf from being pulled away is also avoided. After the exhaust fan is started, the dyers woad leaf moves from bottom to top under the action of negative pressure air and finally leaves the shell through the exhaust pipe. After the dyers woad leaf is pumped out, the rotation of the shell is stopped, the dyers woad root which is originally rotated under the action of centrifugal force on the inner wall of the shell is accumulated on the bottom surface of the shell under the action of gravity, and the dyers woad root is taken out by opening the bottom cover.

Therefore, the device utilizes the positive pressure generated by the air blower to realize the preliminary screening of the folium isatidis, the radix isatidis and the sandstone, utilizes the centrifugal force generated by the rotation of the shell to separate the radix isatidis from the sandstone, utilizes the negative pressure generated by the air exhauster to realize the screening of the folium isatidis, and simultaneously, the sieve plate arranged on the slag collecting cavity can reasonably utilize the centrifugal extrusion force of the radix isatidis to amplify the through hole in the middle of the sieve plate, so that the through hole in the bottom of the sieve plate is reduced, the sandstone is conveniently and efficiently collected under the centrifugal action, and. Finally, the dyers woad leaf is collected by a dyers woad leaf collector connected with an exhaust fan, and the dyers woad leaf is obviously reduced by the collision of sandstone due to the introduction of blast primary screening and the protection of a sieve plate, so that the dyers woad leaf has a basically complete structure; after the rotation of the shell is finished, the isatis root is collected through the bottom of the shell, and then the sieve plate is opened to take out the sandstone. The device well realizes the separation of sandstone, radix isatidis and folium isatidis, saves the process of manually selecting folium isatidis, also avoids the power consumption and workload increased by arranging a plurality of machines, and can effectively improve the production efficiency.

Further, the outer diameter of the slag collecting groove is larger than that of the shell, a protruding portion is formed on the outer wall of the shell on the outer wall of the slag collecting groove, the bottom surface of the protruding portion is a plane, and the protruding portion is detachably fixed on a horizontal supporting rod of the supporting frame. Above-mentioned design has not only enlarged the volume in collection sediment chamber, has improved the deformation scope of sieve, and outside bellied collection sediment groove outer wall can also make the shell place steadily on the horizontal support pole of support frame simultaneously, places back bellying detachably and fixes on the horizontal support pole of support frame, and preferably, the bellying passes through threaded connection with the horizontal support pole of support frame.

Further, the air outlet of the extension rubber tube is opposite to the slag collecting cavity.

Further, the inner diameter of the air blast branch pipe is gradually reduced along the direction from the center of the shell to the inner wall of the shell, and the inner diameter of the extension rubber pipe is equal to the minimum value of the inner diameter of the air blast branch pipe. Through the reducing of blast pipe internal diameter for flowing air can accelerate in blast pipe, after getting into the extension rubber tube, the swing range of extension rubber tube can be increaseed to the gas of quick flow, enlarges the sweep scope of flowing air, further improves the separation effect of grit and isatis root.

Further, the second spring above the spoiler and the second spring below the spoiler are respectively located at two ends of the spoiler. For example, the second spring above the spoiler is located at one end of the spoiler close to the air outlet of the extension rubber pipe, and the second spring below the spoiler is located at one end of the spoiler close to the air inlet of the extension rubber pipe.

Furthermore, the thickness of the spoiler is 0.5-2.5 cm. The thickness of the turbulence plate is not suitable to be too thick, otherwise the swinging difficulty is larger, but the turbulence plate is not too thin, and the gas shunting effect is reduced. In the practical process, according to different product models, the thickness of the spoiler is usually set to be 0.5-2.5 cm.

As still another preferred embodiment of the present invention, a plurality of adaptive stabilizing mechanisms are further fixed to the placing table. In practical application process, because a feeding section of thick bamboo and place between the platform relatively fixed, and the shell can produce rocking of certain degree under the centrifugal action, lead to the shell rotatory in-process, a feeding section of thick bamboo is possible to break away from and places the platform, has safe risk, consequently need design one kind and stabilize stop gear and make the shell when rotatory, a feeding section of thick bamboo is located all the time places the bench and with place the bench contact. But simultaneously, the spacing that the feed cylinder received should not undersize, otherwise the shell blocks easily in rotatory in-process, causes the motor to damage, or the local stress that the outside support that is used for fixed feed cylinder received is too big, easy rupture. In order to solve the above problem, the present invention fixes a plurality of adaptive stabilizing mechanisms on the placing table, and preferably, the number of the adaptive stabilizing mechanisms is 4, and the 4 adaptive stabilizing mechanisms are uniformly arranged along the circumferential direction of the placing table. Every self-adaptation stabilizing mean all includes two arc fixed plates of fixing on placing the platform, and preferably, the radian of arc fixed plate is the same with the radian of a feed cylinder. A spacing district of formation between two arc fixed plates restricts the feed cylinder and removes, is provided with the gyro wheel in the spacing district, and the center of gyro wheel is provided with round pin axle, and the gyro wheel can rotate around round pin axle, and the upper portion and the lower part of round pin axle all are connected with first spring, and first spring coupling has the support column, and the support column is fixed on arc fixed plate. Through the aforesaid setting, the gyro wheel side contacts with a feeding section of thick bamboo, make sliding friction between spacing district inside and the feeding section of thick bamboo outer wall change rolling friction into, reduce the turning resistance of shell, the effort of first spring not only makes a feeding section of thick bamboo and two arc-shaped fixing plate's relative position can produce the skew of small range simultaneously, and can dump the shell and rotate the produced effort of rocking of in-process, and rock and remove the back with the shell top and reset to initial position, rotate the in-process at the shell, the operation of device is more steady and safe, the rotation of shell is around near its vertical axis all the time, centrifugal action is more regular, improve screening efficiency.

Furthermore, a roller groove is formed in the side wall of the feeding cylinder, and the side face of the roller extrudes the inner wall of the roller groove. The purpose of setting up the gyro wheel groove on the lateral wall of a feeding section of thick bamboo is for the gyro wheel provides the rotation track, and the gyro wheel groove plays certain limiting displacement to the gyro wheel, and the top surface and the bottom surface of gyro wheel groove contact with the top surface and the bottom surface of gyro wheel respectively, and the circumstances such as the slope that a plurality of self-adaptation stabilizing mean of mutually supporting can avoid the shell to appear in the rotation process has further improved shell pivoted stability and security.

Further, the bottom end of the feeding cylinder is provided with a ball groove, and a plurality of balls are arranged in the ball groove. In this application, a feeding section of thick bamboo should not be too tight with placing the platform, otherwise a feeding section of thick bamboo lower surface will become shell pivoted resistance with placing the frictional force between the bench surface, but the distance between the two should not be too big, otherwise need the air exhauster to provide bigger output side and can ensure inside vacuum during convulsions. In order to balance the two problems, the bottom end of the feeding cylinder is provided with the ball groove, and the ball groove is internally provided with a plurality of balls, so that the balls reduce the friction area between the feeding cylinder and the placing table, the sliding friction is converted into the rolling friction, the friction force between the feeding cylinder and the placing table is greatly reduced, the shell is not only convenient to rotate, but also the feeding cylinder can be combined with the placing table more tightly, and the workload of the exhaust fan is favorably reduced.

Furthermore, the top cover is provided with an observation port, and a glass observation plate is arranged in the observation port. Through the glass observation board, the separation condition in the shell can be known in real time to the staff, for example the dyers woad leaf is taken out basically and is separated, the degree of separation of grit and isatis root is favorable to the staff to control equipment operation.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. the method realizes the preliminary screening of the folium isatidis, the radix isatidis and the sandstone by utilizing the positive pressure generated by the air blower, separates the radix isatidis from the sandstone by utilizing the centrifugal force generated by the rotation of the shell, realizes the screening of the folium isatidis by utilizing the negative pressure generated by the exhaust fan, and finally collects the folium isatidis by the folium isatidis collector connected with the exhaust fan, so that the collision of the folium isatidis to the sandstone is obviously reduced due to the introduction of the preliminary screening of the air blower and the protection of the sieve plate, and the structure of the folium; after the rotation of the shell is finished, the isatis root is collected through the bottom of the shell, and then the sieve plate is opened to take out the sand, so that the device can well separate the sand, the isatis root and the folium isatidis, save the process of manually selecting the folium isatidis, avoid the power consumption and the workload increased by arranging a plurality of machines, and effectively improve the production efficiency;

2. the air blowing branch pipe is provided with the extension rubber pipe, the side wall of the extension rubber pipe is provided with the plurality of bristles, the spoiler is horizontally arranged inside the extension rubber pipe, the upper surface and the lower surface of the spoiler are both connected with the inner wall of the extension rubber pipe through the second spring, and the air sprayed to the inner wall of the flowing air shell is swept within a certain range instead of facing towards a fixed direction through the swing of the extension rubber pipe and the diversion of the spoiler, so that the air blowing area is enlarged, gravels adhered and mixed on isatis roots are more favorably blown off, and the air blowing efficiency is obviously improved. Meanwhile, if the bristles on the outer wall of the swinging extension rubber tube are in contact with the isatis root, the bristles can also play a role in scouring the surface of the isatis root, so that the removal rate of sand on the surface of the isatis root can be further improved;

3. according to the invention, because the distance between adjacent sieve pores of the sieve plate is larger in the middle part and smaller in the bottom part, and the property that the sieve plate can deform is combined, when the sieve plate is extruded by radix isatidis, sand can easily pass through the middle part of the sieve plate and sand can not easily pass through the bottom part of the sieve plate, the sand is effectively controlled in the slag collecting cavity, the sand can be efficiently collected under the centrifugal action, and the sand is prevented from returning to the shell to damage the integrity of the folium isatidis;

4. the self-adaptive screening device is provided with a plurality of self-adaptive stabilizing mechanisms, the side surfaces of rollers of the self-adaptive stabilizing mechanisms are in contact with the feeding cylinder, so that sliding friction between the inside of a limiting area and the outer wall of the feeding cylinder is converted into rolling friction, the rotating resistance of the shell is reduced, meanwhile, the acting force of the first spring not only enables the relative position of the feeding cylinder and the two arc-shaped fixing plates to generate small-amplitude offset, but also can remove the acting force generated by shaking of the shell in the rotating process, and the top end of the shell is reset to the initial position after the shaking is removed;

5. according to the invention, the L-shaped pressure relief hole is formed in the slag collecting cavity, so that the vortex formed in the slag collecting cavity is avoided, and the external air can smoothly enter the slag collecting cavity;

6. according to the invention, the ball groove is formed in the bottom end of the feeding cylinder, and the plurality of balls are arranged in the ball groove, so that the friction area between the feeding cylinder and the placing table is reduced by the balls, and meanwhile, sliding friction is converted into rolling friction, the friction force between the feeding cylinder and the placing table is greatly reduced, the shell is convenient to rotate, the feeding cylinder can be combined with the placing table more tightly, and the workload of the exhaust fan is reduced;

7. the observation port is arranged on the top cover, so that workers can conveniently master the separation condition in the shell, and the workers can control the equipment to run.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic structural view of a sieve plate and a slag collection trough according to an embodiment of the present invention;

figure 4 is a schematic cross-sectional view of a blast branch pipe and an extension pipe in an embodiment of the present invention.

Reference numbers and corresponding part names in the drawings:

1-shell, 2-feeding cylinder, 3-top cover, 4-bottom cover, 5-placing table, 6-blast main pipe, 7-exhaust pipe, 8-sieve plate, 81-sieve hole, 82-pressure relief hole, 9-adaptive stabilizing mechanism, 91-fixing plate, 92-first spring, 93-supporting column, 94-pin shaft, 95-roller, 96-ball, 10-blast branch pipe, 11-driving rod, 12-motor, 13-extension rubber pipe, 131-bristle, 132-second spring, 133-spoiler, 14-hydraulic cylinder, 15-supporting frame and 16-fixing rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

In the description of the present invention, it is to be understood that the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the scope of the present invention.

Example 1:

in the embodiment shown in fig. 1 to 4, the following steps are included:

(A) obtaining folium Isatidis and radix Isatidis from Isatis tinctoria;

(H) opening the inner sieve plate, taking out the sand collected in the slag collecting cavity, and cleaning the inner part of the shell; in the above steps, the device comprises a support frame 15 and a shell 1 arranged in the support frame 15, wherein a plurality of horizontal support rods for supporting and fixing the shell 1 are arranged in the support frame 15, a gap is arranged between the bottom surface of the support frame 15 and the lower surface of the shell 1, a drive rod 11 is fixed on the lower surface of the support frame 15, and the drive rod 11 is connected with the output end of a motor 12; the diameter of the shell 1 is gradually increased and then gradually reduced from top to bottom, the top end of the shell 1 is an open end, the bottom end of the shell 1 is a closed end, a discharge hole is formed in the closed end of the shell 1, a bottom cover 4 is hinged in the discharge hole, a hydraulic cylinder 14 is arranged below the bottom cover 4, and the hydraulic cylinder 14 is fixed on the bottom surface of a support frame 15; a placing table 5 is fixed on the top end of the shell 1, a feeding cylinder 2 is placed on the placing table 5, the feeding cylinder 2 is communicated with the shell 1, a top cover 3 is arranged at the top of the feeding cylinder 2, a fixing rod 16 is fixed on the outer wall of the feeding cylinder 2, the fixing rod 16 is fixed on an external support piece, an exhaust pipe 7 and a blast main pipe 6 are arranged on the side wall of the feeding cylinder 2, the exhaust pipe 7 is connected with an exhaust fan, the air inlet end of the blast main pipe 6 is connected with a blower, the air outlet end of the blast main pipe 6 extends into the shell 1, the air outlet end of the blast main pipe 6 faces downwards vertically, a plurality of blast branch pipes 10 are arranged on the blast main pipe 6, an extension rubber pipe 13 is installed on the air outlet end of the branch pipe 10, a plurality of brush hairs 131 are arranged on the side wall of the extension rubber pipe 13, and a spoiler 133 is horizontally placed inside the, the upper surface and the lower surface of the spoiler 133 are both connected with the inner wall of the extension rubber pipe 13 through a second spring 132, and the air outlet of the extension rubber pipe 13 faces the inner wall of the housing 1; the inner wall of the shell 1 is provided with a plurality of slag collecting grooves, the slag collecting grooves are arranged along the circumferential direction of the shell 1, the slag collecting grooves are provided with a sieve plate 8, the inner part of the sieve plate 8 and the slag collecting grooves form a slag collecting cavity, the sieve plate 8 is made of flexible materials, the sieve plate 8 is provided with a plurality of sieve holes 81, the distance between every two adjacent sieve holes is gradually reduced from top to bottom and then gradually increased, the top of the slag collecting cavity is provided with a pressure relief hole 82, and the pressure relief hole 82 is communicated with the slag collecting cavity and the inner space of the shell 1; the top cover 3 is provided with an observation port, and a glass observation plate is arranged in the observation port.

The embodiment utilizes positive pressure generated by an air blower to realize preliminary screening of the folium isatidis, the radix isatidis and sandstone, utilizes centrifugal force generated by rotation of a shell to separate the radix isatidis from the sandstone, utilizes negative pressure generated by an exhaust fan to realize screening of the folium isatidis, and finally collects the folium isatidis through an folium isatidis collector connected with the exhaust fan; after the shell rotates, collect the isatis root through the shell bottom, later open the sieve again take out the grit can, this device realizes the separation of grit, isatis root and dyers woad leaf well, and has saved the manual work process of selecting the dyers woad leaf, has also avoided setting up consumption, the work burden that many machines increased, can improve production efficiency effectively.

Example 2:

on the basis of the embodiment 1, the outer diameter of the slag collecting groove is larger than that of the shell 1, a protruding part is formed on the outer wall of the shell 1 on the outer wall of the slag collecting groove, the bottom surface of the protruding part is a plane, and the protruding part is detachably fixed on a horizontal supporting rod of the supporting frame 15; the air outlet of the extension rubber pipe 13 is opposite to the slag collecting cavity; the inner diameter of the blast branch pipe 10 is gradually reduced along the direction from the center of the shell 1 to the inner wall of the shell 1, and the inner diameter of the extension rubber pipe 13 is equal to the minimum value of the inner diameter of the blast branch pipe 10; the second spring 132 above the spoiler 133 and the second spring 132 below the spoiler 133 are respectively located at two ends of the spoiler 133; the thickness of the spoiler 133 is 0.5-2.5 cm.

Example 3:

on the basis of embodiment 2, a plurality of adaptive stabilizing mechanisms 9 are further fixed on the placing table 5, each adaptive stabilizing mechanism 9 includes two arc-shaped fixing plates 91 fixed on the placing table 5, a limiting area for limiting the feeding cylinder 2 is formed between the two arc-shaped fixing plates 91, a roller 95 is arranged in the limiting area, a pin 94 is arranged at the center of the roller 95, the roller 95 can rotate around the pin 94, the upper portion and the lower portion of the pin 94 are both connected with a first spring 92, a supporting column 93 is connected to the first spring 92, and the supporting column 93 is fixed on the arc-shaped fixing plates 91; the side wall of the feeding cylinder 2 is provided with a roller groove, and the side surface of the roller 95 extrudes the inner wall of the roller groove; the bottom end of the feeding cylinder 2 is provided with a ball groove, and a plurality of balls 96 are arranged in the ball groove.

Example 4:

on the basis of embodiment 3, the top cover 3 is provided with a viewing port, and a glass viewing plate is arranged in the viewing port.

As used herein, "first," "second," etc. (e.g., first spring, second spring, etc.) are used only for clarity of description to distinguish between corresponding components and are not intended to limit any order or to emphasize importance, etc. Further, the term "connected" used herein may be either directly connected or indirectly connected via other components without being particularly described.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A screening process for simultaneously screening folium isatidis and radix isatidis is characterized by comprising the following steps:

(A) obtaining folium Isatidis and radix Isatidis from Isatis tinctoria;

(H) opening the inner sieve plate, taking out the sand collected in the slag collecting cavity, and cleaning the inner part of the shell; the step comprises a support frame (15) and a shell (1) arranged in the support frame (15), and is characterized in that a plurality of horizontal support rods used for supporting and fixing the shell (1) are arranged in the support frame (15), a gap is arranged between the bottom surface of the support frame (15) and the lower surface of the shell (1), a drive rod (11) is fixed on the lower surface of the support frame (15), and the drive rod (11) is connected with the output end of a motor (12); the diameter of the shell (1) is gradually increased and then gradually reduced from top to bottom, the top end of the shell (1) is an open end, the bottom end of the shell (1) is a closed end, a discharge hole is formed in the closed end of the shell (1), a bottom cover (4) is connected to the inside of the discharge hole in a hinged mode, a hydraulic cylinder (14) is arranged below the bottom cover (4), and the hydraulic cylinder (14) is fixed on the bottom face of a support frame (15); a placing table (5) is fixed on the top end of the shell (1), a feeding barrel (2) is placed on the placing table (5), the feeding barrel (2) is communicated with the shell (1), a top cover (3) is arranged at the top of the feeding barrel (2), a fixing rod (16) is fixed on the outer wall of the feeding barrel (2), the fixing rod (16) is fixed on an external support piece, an exhaust pipe (7) and a blast main pipe (6) are arranged on the side wall of the feeding barrel (2), the exhaust pipe (7) is connected with an exhaust fan, the air inlet end of the blast main pipe (6) is connected with an air blower, the air outlet end of the blast main pipe (6) extends into the shell (1), the air outlet end of the blast main pipe (6) faces downwards vertically, a plurality of blast branch pipes (10) are arranged on the blast main pipe (6), and an extension rubber pipe (13) is installed on the air outlet end of the blast branch pipes (, a plurality of bristles (131) are arranged on the side wall of the extension rubber pipe (13), a spoiler (133) is horizontally placed in the extension rubber pipe (13), the upper surface and the lower surface of the spoiler (133) are connected with the inner wall of the extension rubber pipe (13) through a second spring (132), and an air outlet of the extension rubber pipe (13) faces to the inner wall of the shell (1); the slag collecting device is characterized in that a plurality of slag collecting grooves are formed in the inner wall of the shell (1), the slag collecting grooves are arranged along the circumferential direction of the shell (1), a sieve plate (8) is arranged on each slag collecting groove, a slag collecting cavity is formed by the inner part of the sieve plate (8) and the slag collecting grooves, the sieve plate (8) is made of flexible materials, a plurality of sieve holes (81) are formed in the sieve plate (8), the distance between every two adjacent sieve holes is gradually reduced from top to bottom and then gradually increased, a pressure relief hole (82) is formed in the top of the slag collecting cavity, and the pressure relief hole (82) is communicated with the slag collecting cavity and the inner space of the shell (1; the top cover (3) is provided with an observation port, and a glass observation plate is arranged in the observation port.

2. The screening process for simultaneously screening folium isatidis and radix isatidis according to claim 1, wherein the outer diameter of the slag collecting groove is larger than the outer diameter of the housing (1), and the outer wall of the slag collecting groove forms a protrusion on the outer wall of the housing (1), the bottom surface of the protrusion is a plane, and the protrusion is detachably fixed on a horizontal support rod of the support frame (15).

3. The screening process for simultaneously screening folium isatidis and radix isatidis as claimed in claim 1, wherein the air outlet of the extended rubber tube (13) is opposite to the residue collection chamber.

4. A screening process for simultaneously screening indigowoad leaf and indigowoad root according to claim 3, wherein the inner diameter of the blast branch pipe (10) is gradually reduced along the direction from the center of the shell (1) to the inner wall of the shell (1), and the inner diameter of the extension rubber pipe (13) is equal to the minimum value of the inner diameter of the blast branch pipe (10).

5. The screening process of claim 3, wherein the second spring (132) above the spoiler (133) and the second spring (132) below the spoiler (133) are respectively located at both ends of the spoiler (133).

6. The screening process for simultaneously screening folium Isatidis and radix Isatidis according to any of claims 3-5, wherein the thickness of the spoiler (133) is 0.5-2.5 cm.

7. The screening process for simultaneously screening folium isatidis and radix isatidis according to claim 1, wherein a plurality of adaptive stabilizing mechanisms (9) are further fixed on the placing table (5), each adaptive stabilizing mechanism (9) comprises two arc-shaped fixing plates (91) fixed on the placing table (5), a limiting area for limiting the feeding barrel (2) is formed between the two arc-shaped fixing plates (91), a roller (95) is arranged in the limiting area, a pin shaft (94) is arranged at the center of the roller (95), the roller (95) can rotate around the pin shaft (94), the upper portion and the lower portion of the pin shaft (94) are both connected with a first spring (92), a supporting column (93) is connected to the first spring (92), and the supporting column (93) is fixed on the arc-shaped fixing plates (91).

8. The screening process for simultaneously screening dyers woad leaf and isatis root according to claim 7, wherein the side wall of the feeding cylinder (2) is provided with a roller groove, and the side surface of the roller (95) presses the inner wall of the roller groove.

9. The screening process for simultaneously screening folium isatidis and radix isatidis according to claim 7, wherein the bottom end of the feeding cylinder (2) is provided with a ball groove, and a plurality of balls (96) are arranged in the ball groove.