CN109127074B - Multistage crushing system, multistage moxa preparation technology and four-stage moxa crushing system - Google Patents
Multistage crushing system, multistage moxa preparation technology and four-stage moxa crushing system Download PDFInfo
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- CN109127074B CN109127074B CN201810853680.XA CN201810853680A CN109127074B CN 109127074 B CN109127074 B CN 109127074B CN 201810853680 A CN201810853680 A CN 201810853680A CN 109127074 B CN109127074 B CN 109127074B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
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Abstract
The invention discloses a multistage crushing system, a multistage moxa preparation process and a four-stage moxa crushing system, which comprise at least two crushing and screening mechanisms, wherein the crushing and screening mechanisms are connected through a joint device capable of controlling the discharge of raw materials or entering the next crushing and screening mechanism; the crushing and screening mechanism at least comprises a crushing device and a screening device, wherein the discharging granularity of the crushing device is gradually reduced along the advancing direction of the raw materials, and the screening aperture of the screening device is gradually reduced. The moxa with different purities can be prepared simultaneously, the moxa raw material is fully utilized, and the waste of the raw material is reduced; the screened moxa and dust can be sorted again, so that the waste of moxa is reduced; dust is collected, so that dust pollution of a working workshop is reduced; the discharging or further crushing and screening can be realized through operation, and the operation is simple; simple structure, convenient implementation, reduced human resource cost in the traditional process, and high economic benefit.
Description
Technical Field
The invention relates to the technical field of wormwood processing equipment, in particular to a multistage crushing system, a multistage moxa preparation process and a four-stage wormwood crushing system.
Background
The mugwort is a perennial herb or a slightly semi-shrub plant, and the plant has strong fragrance. The whole herb is used as a medicine and has the functions of warming channels, removing dampness, dispelling cold, stopping bleeding, diminishing inflammation, relieving asthma, relieving cough, preventing miscarriage, resisting allergy and the like. The moxa is a natural processed product of the wormwood, and has the main effects of clearing and activating the channels and collaterals, warming the channels and stopping bleeding, dispelling cold and relieving pain, promoting tissue regeneration and preventing miscarriage, restoring yang and rescuing from collapse, and preserving health and protecting health. Moxibustion is used externally to treat many diseases. Moxa quality is determined by the purity of moxa. The higher the purity, the better the quality and vice versa. The purity of common moxa on the market at present is 2:1, 3: 1. 5:1, 8: 1. 15:1, etc., up to even 30:1 or more.
Moxa with different purities has different effects and efficacies. The moxa with low purity is suitable for preparing health-care products such as moxa bellyband and pillow, the moxa with low purity is suitable for preparing moxa foot-soaking bags and mild moxibustion, the moxa with high purity can be used for preparing moxibustion columns, the moxibustion columns with different purities have different effects, the moxa with low purity has a high temperature change rate during combustion and is small, the common 40: 1-purity moxa is suitable for scar moxibustion therapy, and the 30:1 and 20: 1-purity moxa is suitable for non-scar moxibustion therapy, 10: 1-purity moxa is suitable for mild moxibustion therapy. Therefore, the moxa with different purities has different functions, and along with the development of the society, the utilization demand of people on the moxa is increasingly improved, and the demand of moxa with various purities is increased.
However, in the conventional process, the production of moxa is mostly manually operated, and the moxa is prepared by beating, crushing and filtering, so that the labor cost is too high, the price of the moxa is too high, and the popularization of the moxa is not facilitated.
There are also many apparatuses for processing moxa into moxa in the prior art, such as a low-temperature stone-milled moxa extraction apparatus in the prior art, patent application No. 201720692664.8, which discloses a low-temperature stone-milled moxa extraction apparatus comprising a dust collector, a short fiber collector and three sets of sequentially connected moxa extraction devices, wherein the moxa extraction device is composed of a movable first spiral feeder, a second spiral feeder, a third spiral feeder, a first rotary separator, a second rotary separator, a third rotary separator, a vertical electric stone mill grinder, a flat electric stone mill middle grinder, a flat electric stone mill fine grinder, a bamboo wind centrifugal coarse drum sieve, a bamboo wind centrifugal fine drum sieve and a bamboo wind-separation closed moxa purification sieve; although the prior art can furthest reserve the moxa fiber, the extracted moxa fiber is long and has little dust content; the whole processing process does not contact metal and generate high temperature, so that the drug effect of the wormwood can be fully maintained; the method can not only keep the high quality of manual wool making, reduce the labor intensity, but also meet the requirement of industrial high-efficiency continuous production, but also can not prepare moxa with different purities simultaneously, can only prepare moxa with one or more similar purities at one time, and can not adapt to the market demand.
As another example, a multistage moxa fine machining device of prior art, patent application No.: 201711275316.1, the device comprises a wormwood raw material crushing device, a first-level moxa screening device and a second-level moxa screening device in sequence, the first-level moxa screening device is provided with a closed moxa multistage filtering body, the moxa multistage filtering body is formed by connecting a filtering box a, a filtering box b and a filtering box c, the three parts are mutually communicated, the interiors of the filtering box a, the filtering box b and the filtering box c are correspondingly provided with a spiral conveying and filtering drum sieve a, a spiral conveying and filtering drum sieve b and a spiral conveying and filtering drum sieve c in sequence through a same rotating shaft, the screen mesh diameters of the spiral conveying and filtering drum sieve a, the spiral conveying and filtering drum sieve b and the spiral conveying and filtering drum sieve c are sequentially reduced, the screen mesh distribution is sequentially increased, the bottoms of the filtering box a, the filtering box b and the filtering box c are respectively provided with three impurity powder collecting hoppers corresponding to the spiral conveying and filtering drum sieve a, the spiral conveying and filtering drum sieve b and the spiral conveying and the filtering drum sieve c, a powder and impurity collecting bag is arranged at the outlet of the lower part of each powder and impurity collecting hopper; a moxa mixing inlet is arranged on one side of the moxa multistage filtering body and is communicated with a spiral conveying and filtering rotary screen a, a first-stage moxa outlet is arranged at the bottom of the other side of the moxa multistage filtering body and is communicated with a spiral conveying and filtering rotary screen c, a barrel-shaped stirring machine is arranged at the moxa mixing inlet, the lower part of the barrel-shaped stirring machine is hermetically connected with the moxa mixing inlet, the upper part of the barrel-shaped stirring machine is hermetically connected with a closed type velvet residue separation funnel, the side part of the velvet residue separation funnel is connected with a moxa raw material crushing device through a feeding pipe, the upper part of the velvet residue separation funnel is communicated with a cloth bag dust removal device A through a dust removal hose A, the cloth bag dust removal device A comprises an upper sealed cavity, a middle dust removal cloth bag, a lower sealed cavity and a powder impurity collecting bag, the dust removal hose A is communicated with the upper sealed cavity, an exhaust fan A is further arranged on the moxa multistage filtering, one end of the exhaust fan A is communicated with the inside of the moxa multistage filtering body, and the other end of the exhaust fan A is communicated with the lower sealing cavity through a dust removal hose B;
the second-stage moxa screening device is sequentially arranged in parallel and comprises a filter box d and a filter box e, the interior of the filter box d is communicated with the interior of the filter box e to form a cavity, the bottom of each of the filter box d and the bottom of the filter box e are provided with a conical hopper, the outer side of the upper part of the filter box d is provided with a second-stage moxa feeding inclined port, the second-stage moxa feeding inclined port is in butt joint with the first-stage moxa outlet, and the outer side of the lower part of the filter box e is provided with a second-stage moxa discharging inclined port; a spiral conveying drum sieve d is horizontally arranged in the cavities inside the filter box d and the filter box e, the feeding end of the spiral conveying drum sieve d is in butt joint with a second-level moxa feeding inclined opening, the discharging end of the spiral conveying drum sieve d is in butt joint with a second-level moxa discharging inclined opening, a drum screen on the spiral conveying drum sieve d is detachable, and the outer end part of a rotating shaft of the spiral conveying drum sieve d is in transmission connection with a driving motor arranged at the top of the filter box e through a belt; the conical hoppers at the bottoms of the filter box d and the filter box e are communicated with an exhaust pipe together, the exhaust pipe is connected with an external exhaust fan B, the exhaust fan B is connected with a cloth bag dust collector B, and the bottom of the cloth bag dust collector B is connected with a powder and sundry material collecting bag;
and the aperture of the roller screen mesh on the spiral conveying roller screen d is 80-120 meshes.
In the prior art, after the moxa raw material is crushed by the moxa raw material crushing device, the crushed powder of the moxa rod with a heavier specific gravity is automatically conveyed and collected by the spiral stranding cage conveying device, and the collected powder can be continuously utilized without waste; the moxa mixing materials are thrown out through the feeding pipe, and simultaneously the moxa mixing materials are sucked into the moxa residue separation funnel under the suction action of the exhaust fan A and then enter the filter box a, the filter box b and the filter box c in the first-stage moxa screening device, meanwhile, the cloth bag dust removal device A can perform circulating dust removal work on the moxa mixing materials entering the filter boxes a, b and c in real time, and part of powder sundries separated from the moxa mixing materials are collected for other use; the purity of the moxa is greatly improved after the moxa is treated by the filter boxes a, b and c; after the grading treatment of one-level moxa screening plant, the moxa product gets into second grade moxa screening plant again among, and through the screening of more fine and close auger delivery drum sieve d again, moxa purity can be higher, and the high gold fine hair product of grade will appear in the moxa product that finally comes out.
It can be known from the above that, this prior art is constantly to screening the moxa after once breaking through the screw conveying drum sieve of compactness gradually, thereby the final high moxa of purity that obtains, in the screening process, some moxa that the granularity is great can be collected as the powder by the sieve mesh of initial screw conveying drum sieve falls and utilize, however because the moxa granularity diverse that its different screw conveying drum sieves were screened out, collect the moxa that various purities are different for other use, on the one hand can not be fine with the moxa of different purities make full use of, later stage still needs extra process to distinguish the moxa of different purities, on the other hand, make moxa raw materials can not make full use of, great increase the cost of moxa preparation. In addition, moxa with different purities cannot be processed at one time, and the moxa raw material is utilized to the maximum extent.
Therefore, the development of a device which can simultaneously prepare moxa with different purities, maximally utilize moxa raw materials, simultaneously has little dust in the crushing process and can well recycle the dust is urgently needed by the technical personnel in the field.
Disclosure of Invention
In order to solve the technical problems, the invention provides a multistage crushing system, a multistage moxa preparation process and a four-stage wormwood crushing system.
The invention provides a multistage crushing system, a multistage moxa preparation process and a four-stage wormwood crushing system, which adopt the following technical scheme:
a multistage crushing system comprises at least two crushing and screening mechanisms 1, wherein the crushing and screening mechanisms 1 crush and screen moxa so as to prepare moxa, and the moxa is discharged according to the operation of workers or enters the next crushing and screening mechanism 1 to be crushed and screened to obtain moxa with higher purity; moxa of different kinds of purity can be prepared as required and corresponding number broken screening structure 1 is set up. The crushing and screening mechanisms 1 are connected through a joint device 2 which can control the discharge of raw materials or enter the next crushing and screening mechanism 1; the crushing and screening mechanism 1 at least comprises a crushing device 3 and a screening device 4, wherein the wormwood is crushed in the crushing device 3 and then enters the screening device 4 for screening, and the dust which is crushed excessively is screened out. On the raw materials advancing direction, breaker 3's ejection of compact granularity reduces gradually, and sieving mechanism 4's screening aperture reduces gradually to the moxa purity of preparation improves gradually, and the staff selects the screening aperture of different sieving mechanism 4 through the ejection of compact granularity of control breaker 3, makes the moxa of different purity.
Preferably, the crushing device 3 comprises a crusher 31 and a feeding fan 32, wherein the discharge port of the crusher 31 is communicated with the inlet pipeline of the feeding fan 32, and the outlet of the feeding fan 32 is communicated with the inlet pipeline of the screening device 4; the discharge particle size of the crusher 31 of each crushing device 3 decreases gradually in the direction of travel of the raw material. The crusher 31 is electrically connected with a power supply, and starts to work or stops working under the control of a worker, and the structure and the discharge particle size regulation principle are not described in detail herein because the crusher is common in the market. The feeding fan 32 is electrically connected with a power supply and starts to work or stops working under the control of a worker. Meanwhile, the crushing device 3 may also be a combination of other crushing devices and a feeding device, and is within the protection scope of the present invention without departing from the principle of the present invention.
The screening device 4 comprises a box body 41 and a rotating shaft 42 arranged in the box body 41; one end of the rotating shaft 42 is rotatably connected with the inner wall of the box body 41, the other end of the rotating shaft penetrates through the box body 41 and is in transmission connection with a power source 43 arranged outside the box body 41, a certain angle is formed between the rotating shaft 42 and the horizontal plane, so that moxa can move towards the discharge hole 48 under the action of gravity and the screening efficiency is increased, the angle is preferably 0-45 degrees, the preferred power source 43 is a motor, an output shaft of the motor is in transmission connection with the rotating shaft 42 to drive the rotating shaft 42 to rotate, and the power source 43 can also be other equipment for providing power; a plurality of support rods 44 are fixedly arranged on the rotating shaft 42, a cylindrical screen 45 is sleeved outside the rotating shaft 42, the cylindrical screen 45 is supported by the support rods 44 and is fixed with the rotating shaft 42, and a certain distance is reserved between two ends of the cylindrical screen 45 and the inner wall of the box body 41, so that feeding and discharging are guaranteed; the cylindrical screen 45 is provided with a plurality of screen holes 451, and the screen holes 451 of each screening device 4 are gradually reduced along the advancing direction of the raw materials, so that moxa with different purities can be screened; the box body 41 is also provided with a feed inlet 46, the feed inlet 46 is in pipeline communication with the crushing device 3, and the feed inlet 46 is in pipeline communication with the feeding fan 32 of the crushing device 3; the feed port 46 is positioned in the box body 41, the receiving device 47 is arranged below the feed port 46, and moxa falls into the receiving device 47 through the feed port 46; the material receiving device 47 is funnel-shaped, and is fixed below the feed inlet 46 in the box body 41 through a fixing frame welded in the box body 41, an outlet of the material receiving device penetrates through an opening at one end of the cylindrical screen 45, and moxa enters the cylindrical screen 45 from the material receiving device 47 to start screening; the box body 41 is also provided with a discharge port 48, the discharge port 48 is arranged below one end of the cylindrical screen 45, which is far away from the material receiving device 47, the moxa moves to one end of the raw material receiving device 47 from one end of the cylindrical screen 45, which is close to the material receiving device 47, under the action of gravity, and then falls to the discharge port 48; the box body 41 below the cylindrical screen 45 is also provided with a plurality of discharge ports 49, and the discharge ports 49 are also communicated with the sorting device 5 through pipelines. The moxa and dust of small particle size screened by the tubular screen 45 enter the sorting device 5 through the discharge port 49 to be screened again, so that the moxa of small particle size is screened out and collected, and the dust is discharged and collected.
Preferably, the top of the box body 41 is provided with a plurality of air ports 410, the air ports 410 are communicated with a fan 411 through a pipeline, and the air blown into the box body by the fan 411 is controlled to be 10-15m/s, so that the screening efficiency is improved, and the suspension time of screened moxa and dust in the air in the screening process is reduced.
Preferably, a discharge pipe 491 is further communicated with a bottom of each of the discharge ports 49, the discharge pipe 491 is communicated with each of the discharge ports 49, one end of the discharge pipe 491 is communicated with the discharge fan 492, and the other end is communicated with the sorting device 5. The exhaust fan 492 blows moxa and dust into the sorting device 5.
The further scheme is that the sorting device 5 comprises a sorting box body 51 and at least two filter plates 52, the number of the filter plates 52 can be set to be different according to requirements, a plurality of filter holes are formed in each filter plate 52, and the hole diameter of each filter hole is gradually reduced along the vertical direction; the filter plates 52 are fixed in the sorting box body 51, have a certain angle with the horizontal plane, and can facilitate the falling of the moxa and the dust, the angle is preferably 0-45 degrees, the angles of the adjacent filter plates 52 and the horizontal plane are opposite, so that the moxa and the dust can uniformly fall on each filter plate 52; a sorting outlet 53 is formed at one end of each filter plate 52 with a lower horizontal height and fixed with the sorting box body 51, a conveying device 54 is arranged below the sorting outlet 53, moxa falls out from the sorting outlet 53 and falls on the conveying device 54, the conveying device 54 can be a conveying belt preferably, and is opened or closed under the operation of a worker, the moxa falls on the conveying belt and is conveyed to a preset position to be collected, the moxa falling from different filter plates 52 is classified and collected to prepare moxa with different purities, or the moxa is placed into the crushing and screening mechanism 1 to be crushed again; the filter plate 52 has a filter hole diameter gradually decreasing in the vertical direction.
Preferably, a dust discharge port 55 is formed at the bottom of the sorting box 51, and the dust discharge port 55 is in communication with a dust collection bag pipe. The moxa floss and dust with undersize particle size fall out from the dust outlet 55 at the bottom of the sorting box 51 and fall into the dust collecting bag.
Further, a vibration motor 6 is fixed outside the sorting device 5. The vibrating motor 6 is electrically connected with a power supply and is controlled by a worker to be opened or closed, the vibrating motor 6 vibrates to drive the sorting box body 51 to start vibrating, so that each filter plate 52 starts vibrating, and meanwhile, moxa on the filter plate 52 falls out from the sorting outlet 53 under the action of gravity.
More preferably, the adapter device 2 comprises an adapter port 21, a switching baffle 22, a discharge pipeline 23 and an adapter pipeline 24, wherein the adapter port 21 is fixed below the outlet of the screening device 4 and is of a hollow structure, moxa falls into the adapter port 21 from the discharge hole 48, the switching baffle 22 is rotatably connected inside the adapter port 21, a partition plate 211 is fixedly connected at the center of the bottom end inside the adapter port 21, two ends of the partition plate 211 are fixedly welded with the inner wall of the adapter port 21, and the bottom of the adapter port 21 is divided into a discharge outlet 212 and an adapter outlet 213; a discharge pipeline 23 is fixed below the discharge outlet 212, and a switching pipeline 24 is fixed below the switching outlet 213; the switching pipeline 24 is communicated with the crushing device 3 of the next crushing and screening mechanism 1 through a pipeline; the adapter 21 is a rectangular body, and a rectangular through hole is formed in the center of the adapter; the switching baffle plate 22 is rotatably connected inside the rectangular through hole and comprises a cylindrical pin 221, a first baffle plate 222 fixedly connected with the cylindrical pin, and a second baffle plate 223 symmetrically arranged with the first baffle plate 222 relative to the cylindrical pin 221, wherein the second baffle plate 223 is fixedly connected with the cylindrical pin 221; one end of the cylindrical pin 221 is rotatably connected with the inner wall of the adapter 21, the other end of the cylindrical pin penetrates through the adapter 21 and is fixedly connected with the change-over switch 224, and a worker rotates the change-over switch 224, so that the cylindrical pin 221 rotates, the first baffle 222 and the second baffle 223 are driven to rotate, the first baffle 222 and the second baffle 223 form an inclined plane, moxa falls on the second baffle 223, and falls into the discharge outlet 212 or the adapter outlet 213 from the first baffle 222 along the inclined plane; first baffle 222, second baffle 223 both sides and rectangle opening clearance fit ensure can be at the rotation of rectangle opening, the length of first baffle 222 is greater than rectangle opening internal diameter to make it can have three limit and the laminating of rectangle opening inner wall when invading oblique angle, the length of second baffle 223 is less than the length of first baffle 222, makes the moxa can have great space to fall down.
The invention discloses a multistage moxa preparation process, which uses the multistage crushing system and comprises the following steps:
s1: pouring the moxa raw material into a crusher 31 of a crushing device 3 from a feeding hole of a first crushing and screening mechanism 1, adjusting the discharging granularity of the crusher 31, and crushing the moxa raw material in the crusher 31; when in use, the moxa with different purities is prepared, the moxa with the purity of 2:1 is prepared, and the discharge granularity is 4-6 mm; preparing moxa with the purity of 3:1, wherein the discharge granularity is 2-4mm, and preparing moxa with the purity of 5:1, wherein the discharge granularity is 1-3 mm; the moxa with the purity of 15:1 is prepared, the discharge granularity is 0.8-1.8mm, the moxa with the purity of 30:1 is prepared by two crushing and screening mechanisms 1, the crushing and discharge granularity of the two crushing and screening mechanisms 1 is 0.8-1.8mm, the screening aperture of a screening device is 0.8-1.8mm, and the preparation of the moxa with different purities is realized by controlling the discharge granularity and the screening aperture.
S2: the feeding fan 32 is started, and the crushed wormwood raw materials enter the box body 41 of the screening device 4 through the feeding hole 46 under the action of the feeding fan 32, fall on the receiving device 47 and fall into the cylindrical screen 45 under the action of gravity.
S3: the power source 43 is started, the power source 43 drives the rotating shaft 42 to start rotating, the crushed moxa raw material starts rotating on the cylindrical screen 45, the moxa with the granularity smaller than the aperture of the screen aperture 451 falls out from the discharge port 49, and under the action of gravity, the moxa with the granularity larger than the aperture of the screen aperture 451 moves towards the discharge port 48.
S4: the fan 411 is started, wind is blown down vertically by the wind port 410, and moxa falls down from the other end of the cylindrical screen 45 and out of the discharge port 48 under the action of gravity.
S5: the staff controls the change-over switch 224 of the connector device 2, so that the moxa wool is blocked by the change-over baffle 22 to fall into the discharge outlet 212 to be collected, or falls into the transfer outlet 213 to fall into the crusher 31 of the crushing device 3 of the next crushing and screening mechanism 1, the staff adjusts the discharge granularity of the crusher 31 of the next crushing and screening mechanism 1 to be smaller than that of the crusher 31 of the previous crushing and screening mechanism 1, and the moxa wool is crushed and then enters the next screening device 4 to be screened.
S6: when the worker turns on the discharge fan 492, the moxa having a smaller particle size and selected by the selection device 4 falls into the discharge duct 491 through the discharge port 49, and enters the selection device 5 by the discharge fan 492.
S7: the moxa having a smaller particle size enters the sorting box 51, falls on the filter plates 52 by the exhaust fan 492, and is filtered again, and the moxa having a smaller particle size passes through the filter holes of the upper filter plate 52 and is filtered again on the lower filter plate 52.
S8: the worker turns on the vibrating motor 6, the sorting box body 51 starts to vibrate, each filter plate 52 is driven to vibrate, and meanwhile moxa on the filter plates 52 falls out from the sorting outlet 53 under the action of gravity and falls onto the conveying device 54;
s9: the worker turns on the conveyor 54 to carry out and collect moxa particles of different sizes.
The four-stage wormwood crushing system comprises the multi-stage crushing system; a first crushing and screening mechanism 11, a second crushing and screening mechanism 12, a third crushing and screening mechanism 13 and a fourth crushing and screening mechanism 14 are sequentially arranged along the advancing direction of the raw materials; one end of the first crushing and screening mechanism 11 is a raw material adding port, the other end of the first crushing and screening mechanism is connected with a second crushing and screening mechanism 12 through a connector device 2, the other end of the second crushing and screening mechanism 12 is connected with a third crushing and screening mechanism 13 through the connector device 2, and the other end of the third crushing and screening mechanism 13 is connected with a fourth crushing and screening mechanism 14; a collecting and conveying device 15 is arranged below an outlet at the other end of the fourth crushing and screening mechanism 14; the first crushing and screening mechanism 11, the second crushing and screening mechanism 12, the third crushing and screening mechanism 13, and the fourth crushing and screening mechanism 14 are identical in structure to the crushing and screening mechanism 1, and therefore, the detailed description thereof is omitted.
The first crushing and screening mechanism 11 consists of a first crushing device 111 and a first screening device 112; the first crushing device 111 comprises a first crusher 1111 and a first feed fan 1112, and a discharge port of the first crusher 1111 is in pipeline communication with the first feed fan 1112; a plurality of first sieve holes are formed in a first cylindrical sieve 1113 arranged in the first screening device 112, and the aperture of each first sieve hole is 4-6mm, preferably 5 mm; the first crushing and screening mechanism 11 produces moxa with a purity of 2: 1.
The second crushing and screening mechanism 12 consists of a second crushing device 121 and a second screening device 122; the second crushing device 121 comprises a second crusher 1211 and a second feeding fan 1212, and a discharge port of the second crusher 1211 is in pipeline communication with the second feeding fan 1212; a plurality of second screen holes are formed in a second cylindrical screen 1213 arranged in the second screening device 122, and the aperture of each second screen hole is 2-4mm, preferably 3 mm; the second crushing and screening mechanism 12 produces moxa with a purity of 3: 1.
The third crushing and screening mechanism 13 is composed of a third crushing device 131 and a third screening device 132; the third crushing device 131 comprises a third crusher 1311 and a third feeding fan 1312, and a discharge port of the third crusher 1311 is in pipeline communication with the third feeding fan 1312; a plurality of third screen holes are formed in a third cylindrical screen 1313 arranged in the third screening device 132, and the aperture of each third screen hole is 1-3mm, preferably 2 mm; the third crushing and screening mechanism 13 produces moxa with a purity of 5: 1.
The fourth crushing and screening mechanism 14 is composed of a fourth crushing device 141 and a fourth screening device 142; the fourth crushing device 141 comprises a fourth crusher 1411 and a fourth feeding fan 1412, and a discharge hole of the fourth crusher 1411 is in pipeline communication with the fourth feeding fan 1412; a plurality of fourth screen holes are formed in a fourth cylindrical screen 1413 arranged in the fourth screening device 142, and the aperture of each fourth screen hole is 0.8-1.8mm, preferably 1.5 mm; the fourth crushing and screening mechanism 14 produces moxa with the purity of 15: 1.
The discharge granularity of the first crusher 1111 is 4-6 mm; the discharge particle size of the second crusher 1211 is 2 to 4mm, the discharge particle size of the third crusher 1311 is 1 to 3mm, and the discharge particle size of the fourth crusher 1411 is 0.8 to 1.8 mm; meanwhile, moxa with other purity can be prepared by setting different discharge particle sizes and sieve pore diameters through simple experiments.
The bottoms of the first screening device 112, the second screening device 122, the third screening device 132 and the fourth screening device 142 are communicated with the sorting device 5 through a first discharge pipeline 4911; four filter plates 52 are fixed in the sorting device 5, and the filter holes of the filter plates are sequentially 4-6mm, 2-4mm, 1-3mm and 0.8-1.8mm in the vertical direction. The aperture of the filter holes of the filter plate 52 is set corresponding to the sieve holes 451 of each screening device 4, so that the moxa can be filtered again, and the moxa is collected, and the dust falls out from the bottom and is collected.
Compared with the prior art, the invention has the following technical effects:
(1) the moxa with different purities can be prepared simultaneously, the moxa raw material is fully utilized, and the waste of the raw material is reduced;
(2) the screened moxa and dust can be sorted again, so that the waste of moxa is reduced;
(3) dust is collected, so that dust pollution of a working workshop is reduced;
(4) the discharging or further crushing and screening can be realized through operation, and the operation is simple;
(5) simple structure, convenient implementation, reduced human resource cost in the traditional process, and high economic benefit.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a screening apparatus 4 according to embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of a screening apparatus 4 according to embodiment 2 of the present invention;
FIG. 4 is a schematic structural view of a sorting apparatus 5 according to example 3 of the present invention;
FIG. 5 is a schematic structural view of a sorting apparatus 5 according to example 4 of the present invention;
FIG. 6 is a schematic structural view of a joint device 2 according to embodiment 5 of the present invention;
fig. 7 is a schematic structural view of a switching damper 22 according to embodiment 5 of the present invention;
FIG. 8 is a schematic view of the connection of the four-stage wormwood crushing system according to the present invention.
Detailed Description
The invention will be further explained with reference to the drawings and the embodiments.
As shown in fig. 1, the multistage crushing system of the present invention comprises at least two crushing and screening mechanisms 1, wherein the crushing and screening mechanisms 1 crush and screen moxa so as to prepare moxa, and the moxa is discharged according to the operation of a worker or enters the next crushing and screening mechanism 1 to crush and screen moxa with higher purity; moxa of different kinds of purity can be prepared as required and corresponding number broken screening structure 1 is set up. The crushing and screening mechanisms 1 are connected through a joint device 2 which can control the discharge of raw materials or enter the next crushing and screening mechanism 1; the crushing and screening mechanism 1 at least comprises a crushing device 3 and a screening device 4, wherein the wormwood is crushed in the crushing device 3 and then enters the screening device 4 for screening, and the dust which is crushed excessively is screened out. On the raw materials advancing direction, breaker 3's ejection of compact granularity reduces gradually, and sieving mechanism 4's screening aperture reduces gradually to the moxa purity of preparation improves gradually, and the staff selects the screening aperture of different sieving mechanism 4 through the ejection of compact granularity of control breaker 3, makes the moxa of different purity.
Example 1
In the embodiment, the crushing device 3 comprises a crusher 31 and a feeding fan 32, wherein a discharge port of the crusher 31 is communicated with an inlet pipeline of the feeding fan 32, and an outlet of the feeding fan 32 is communicated with an inlet pipeline of the screening device 4; the discharge particle size of the crusher 31 of each crushing device 3 decreases gradually in the direction of travel of the raw material. The crusher 31 is electrically connected with a power supply, and starts to work or stops working under the control of a worker, and the structure and the discharge particle size regulation principle are not described in detail herein because the crusher is common in the market. The feeding fan 32 is electrically connected with a power supply and starts to work or stops working under the control of a worker.
As shown in fig. 2, the screening apparatus 4 includes a casing 41, a rotating shaft 42 disposed in the casing 41; one end of the rotating shaft 42 is rotatably connected with the inner wall of the box body 41, the other end of the rotating shaft penetrates through the box body 41 and is in transmission connection with a power source 43 arranged outside the box body 41, a certain angle is formed between the rotating shaft 42 and the horizontal plane, so that moxa can move towards the discharge hole 48 under the action of gravity and the screening efficiency is increased, the preferred power source 43 is a motor, an output shaft of the motor is in transmission connection with the rotating shaft 42 to drive the rotating shaft 42 to rotate, and the power source 43 can also be other equipment for providing power; a plurality of support rods 44 are fixedly arranged on the rotating shaft 42, a cylindrical screen 45 is sleeved outside the rotating shaft 42, the cylindrical screen 45 is supported by the support rods 44 and is fixed with the rotating shaft 42, and a certain distance is reserved between two ends of the cylindrical screen 45 and the inner wall of the box body 41, so that feeding and discharging are guaranteed; the cylindrical screen 45 is provided with a plurality of screen holes 451, and the screen holes 451 of each screening device 4 are gradually reduced along the advancing direction of the raw materials, so that moxa with different purities can be screened; the box body 41 is also provided with a feed inlet 46, the feed inlet 46 is in pipeline communication with the crushing device 3, and the feed inlet 46 is in pipeline communication with the feeding fan 32 of the crushing device 3; the feed port 46 is positioned in the box body 41, the receiving device 47 is arranged below the feed port 46, and moxa falls into the receiving device 47 through the feed port 46; the material receiving device 47 is funnel-shaped, and is fixed below the feed inlet 46 in the box body 41 through a fixing frame welded in the box body 41, an outlet of the material receiving device penetrates through an opening at one end of the cylindrical screen 45, and moxa enters the cylindrical screen 45 from the material receiving device 47 to start screening; the box body 41 is also provided with a discharge port 48, the discharge port 48 is arranged below one end of the cylindrical screen 45, which is far away from the material receiving device 47, the moxa moves to one end of the raw material receiving device 47 from one end of the cylindrical screen 45, which is close to the material receiving device 47, under the action of gravity, and then falls to the discharge port 48; the box body 41 below the cylindrical screen 45 is also provided with a plurality of discharge ports 49, and the discharge ports 49 are also communicated with the sorting device 5 through pipelines. The moxa and dust of small particle size screened by the tubular screen 45 enter the sorting device 5 through the discharge port 49 to be screened again, so that the moxa of small particle size is screened out and collected, and the dust is discharged and collected.
Example 2
As a preferred embodiment of embodiment 1, in this embodiment, as shown in fig. 3, a plurality of air ports 410 are opened at the top of the box 41, the air ports 410 are in pipe communication with a fan 411, and the air flow blown into the box by the fan 411 is controlled to be 10-15m/s, so that the screening efficiency is increased, and the time for suspending the screened moxa and dust in the air in the screening process is reduced.
A discharge duct 491 is further communicated with the bottom of each discharge port 49, the discharge duct 491 is communicated with each discharge port 49, one end of the discharge duct 491 is communicated with the discharge fan 492, and the other end is communicated with the sorting device 5. The exhaust fan 492 blows moxa and dust into the sorting device 5.
Example 3
As a preferred embodiment of the above embodiment, in this embodiment, as shown in fig. 4, the sorting device 5 includes a sorting tank 51 and at least two filter plates 52, the number of the filter plates 52 may be set differently according to requirements, a plurality of filter holes are opened on the filter plates 52, and the hole diameters of the filter holes gradually decrease along the vertical direction; the filter plates 52 are fixed in the sorting box body 51, a certain angle is formed between the filter plates and the horizontal plane, moxa wool and dust can fall conveniently, and the angles between the adjacent filter plates 52 and the horizontal plane are opposite, so that the moxa wool and the dust can fall on each filter plate 52 uniformly; a sorting outlet 53 is formed at one end of each filter plate 52 with a lower horizontal height and fixed with the sorting box body 51, a conveying device 54 is arranged below the sorting outlet 53, moxa falls out from the sorting outlet 53 and falls on the conveying device 54, the conveying device 54 can be a conveying belt preferably, and is opened or closed under the operation of a worker, the moxa falls on the conveying belt and is conveyed to a preset position to be collected, the moxa falling from different filter plates 52 is classified and collected to prepare moxa with different purities, or the moxa is placed into the crushing and screening mechanism 1 to be crushed again; the filter plate 52 has a filter hole diameter gradually decreasing in the vertical direction.
The bottom of the sorting box body 51 is provided with a dust outlet 55, and the dust outlet 55 is communicated with a dust collecting bag pipeline. The moxa floss and dust with undersize particle size fall out from the dust outlet 55 at the bottom of the sorting box 51 and fall into the dust collecting bag.
Example 4
As a preferred embodiment of embodiment 3, in this embodiment, as shown in fig. 5, a vibration motor 6 is fixed to the sorting device 5. The vibrating motor 6 is electrically connected with a power supply and is controlled by a worker to be opened or closed, the vibrating motor 6 vibrates to drive the sorting box body 51 to start vibrating, so that each filter plate 52 starts vibrating, and meanwhile, moxa on the filter plate 52 falls out from the sorting outlet 53 under the action of gravity.
Example 5
In this embodiment, as shown in fig. 6, the adapter device 2 includes an adapter port 21, a switching baffle 22, a discharge pipeline 23, and an adapter pipeline 24, the adapter port 21 is fixed below the outlet of the screening device 4 and is of a hollow structure, moxa falls into the adapter port 21 from the discharge port 48, the switching baffle 22 is rotatably connected inside the adapter port 21, a separation plate 211 is fixedly connected to the center of the bottom end inside the adapter port 21, two ends of the separation plate 211 are fixedly welded to the inner wall of the adapter port 21, and the bottom of the adapter port 21 is divided into a discharge outlet 212 and an adapter outlet 213; a discharge pipeline 23 is fixed below the discharge outlet 212, and a switching pipeline 24 is fixed below the switching outlet 213; the switching pipeline 24 is communicated with the crushing device 3 of the next crushing and screening mechanism 1 through a pipeline; the adapter 21 is a rectangular body, and a rectangular through hole is formed in the center of the adapter; as shown in fig. 7, the switching baffle 22 is rotatably connected inside the rectangular through opening and comprises a cylindrical pin 221, a first baffle 222 fixedly connected with the cylindrical pin, and a second baffle 223 symmetrically arranged with respect to the cylindrical pin 221 with respect to the first baffle 222, wherein the second baffle 223 is fixedly connected with the cylindrical pin 221; one end of the cylindrical pin 221 is rotatably connected with the inner wall of the adapter 21, the other end of the cylindrical pin 221 penetrates through the adapter 21 and is fixedly connected with the change-over switch 224, the change-over switch 224 is a handle for facilitating a worker to rotate the cylindrical pin 221, the worker rotates the change-over switch 224, so that the cylindrical pin 221 rotates, the first baffle 222 and the second baffle 223 are driven to rotate, the first baffle 222 and the second baffle 223 form an inclined plane, moxa falls on the second baffle 223, and falls into the discharge outlet 212 or the adapter outlet 213 from the first baffle 222 along the inclined plane; first baffle 222, second baffle 223 both sides and rectangle opening clearance fit ensure can be at the rotation of rectangle opening, the length of first baffle 222 is greater than rectangle opening internal diameter to make it can have three limit and the laminating of rectangle opening inner wall when invading oblique angle, the length of second baffle 223 is less than the length of first baffle 222, makes the moxa can have great space to fall down.
The invention discloses a multistage moxa preparation process, which uses the multistage crushing system and comprises the following steps:
s1: pouring the moxa raw material into a crusher 31 of a crushing device 3 from a feeding hole of a first crushing and screening mechanism 1, adjusting the discharging granularity of the crusher 31, and crushing the moxa raw material in the crusher 31; when in use, the moxa with different purities is prepared, the moxa with the purity of 2:1 is prepared, and the discharge granularity is 4-6 mm; preparing moxa with the purity of 3:1, wherein the discharge granularity is 2-4mm, and preparing moxa with the purity of 5:1, wherein the discharge granularity is 1-3 mm; the moxa with the purity of 15:1 is prepared, the discharge granularity is 0.8-1.8mm, the moxa with the purity of 30:1 is prepared by two crushing and screening mechanisms 1, the crushing and discharge granularity of the two crushing and screening mechanisms 1 is 0.8-1.8mm, the screening aperture of a screening device is 0.8-1.8mm, and the preparation of the moxa with different purities is realized by controlling the discharge granularity and the screening aperture.
S2: the feeding fan 32 is started, and the crushed wormwood raw materials enter the box body 41 of the screening device 4 through the feeding hole 46 under the action of the feeding fan 32, fall on the receiving device 47 and fall into the cylindrical screen 45 under the action of gravity.
S3: the power source 43 is started, the power source 43 drives the rotating shaft 42 to start rotating, the crushed moxa raw material starts rotating on the cylindrical screen 45, the moxa with the granularity smaller than the aperture of the screen aperture 451 falls out from the discharge port 49, and under the action of gravity, the moxa with the granularity larger than the aperture of the screen aperture 451 moves towards the discharge port 48.
S4: the fan 411 is started, wind is blown down vertically by the wind port 410, and moxa falls down from the other end of the cylindrical screen 45 and out of the discharge port 48 under the action of gravity.
S5: the staff controls the change-over switch 224 of the connector device 2, so that the moxa wool is blocked by the change-over baffle 22 to fall into the discharge outlet 212 to be collected, or falls into the transfer outlet 213 to fall into the crusher 31 of the crushing device 3 of the next crushing and screening mechanism 1, the staff adjusts the discharge granularity of the crusher 31 of the next crushing and screening mechanism 1 to be smaller than that of the crusher 31 of the previous crushing and screening mechanism 1, and the moxa wool is crushed and then enters the next screening device 4 to be screened.
S6: when the worker turns on the discharge fan 492, the moxa having a smaller particle size and selected by the selection device 4 falls into the discharge duct 491 through the discharge port 49, and enters the selection device 5 by the discharge fan 492.
S7: the moxa having a smaller particle size enters the sorting box 51, falls on the filter plates 52 by the exhaust fan 492, and is filtered again, and the moxa having a smaller particle size passes through the filter holes of the upper filter plate 52 and is filtered again on the lower filter plate 52.
S8: the worker turns on the vibrating motor 6, the sorting box body 51 starts to vibrate, each filter plate 52 is driven to vibrate, and meanwhile moxa on the filter plates 52 falls out from the sorting outlet 53 under the action of gravity and falls onto the conveying device 54;
s9: the worker turns on the conveyor 54 to carry out and collect moxa particles of different sizes.
Meanwhile, as shown in fig. 8, the four-stage wormwood crushing system comprises the multi-stage crushing system; a first crushing and screening mechanism 11, a second crushing and screening mechanism 12, a third crushing and screening mechanism 13 and a fourth crushing and screening mechanism 14 are sequentially arranged along the advancing direction of the raw materials; one end of the first crushing and screening mechanism 11 is a raw material adding port, the other end of the first crushing and screening mechanism is connected with a second crushing and screening mechanism 12 through a connector device 2, the other end of the second crushing and screening mechanism 12 is connected with a third crushing and screening mechanism 13 through the connector device 2, and the other end of the third crushing and screening mechanism 13 is connected with a fourth crushing and screening mechanism 14; a collecting and conveying device 15 is arranged below an outlet at the other end of the fourth crushing and screening mechanism 14; the first crushing and screening mechanism 11, the second crushing and screening mechanism 12, the third crushing and screening mechanism 13, and the fourth crushing and screening mechanism 14 are identical in structure to the crushing and screening mechanism 1, and therefore, the detailed description thereof is omitted.
The first crushing and screening mechanism 11 consists of a first crushing device 111 and a first screening device 112; the first crushing device 111 comprises a first crusher 1111 and a first feed fan 1112, and a discharge port of the first crusher 1111 is in pipeline communication with the first feed fan 1112; a plurality of first sieve holes are formed in a first cylindrical sieve 1113 arranged in the first screening device 112, and the aperture of each first sieve hole is 4-6mm, preferably 5 mm; the first crushing and screening mechanism 11 produces moxa with a purity of 2: 1.
The second crushing and screening mechanism 12 consists of a second crushing device 121 and a second screening device 122; the second crushing device 121 comprises a second crusher 1211 and a second feeding fan 1212, and a discharge port of the second crusher 1211 is in pipeline communication with the second feeding fan 1212; a plurality of second screen holes are formed in a second cylindrical screen 1213 arranged in the second screening device 122, and the aperture of each second screen hole is 2-4mm, preferably 3 mm; the second crushing and screening mechanism 12 produces moxa with a purity of 3: 1.
The third crushing and screening mechanism 13 is composed of a third crushing device 131 and a third screening device 132; the third crushing device 131 comprises a third crusher 1311 and a third feeding fan 1312, and a discharge port of the third crusher 1311 is in pipeline communication with the third feeding fan 1312; a plurality of third screen holes are formed in a third cylindrical screen 1313 arranged in the third screening device 132, and the aperture of each third screen hole is 1-3mm, preferably 2 mm; the third crushing and screening mechanism 13 produces moxa with a purity of 5: 1.
The fourth crushing and screening mechanism 14 is composed of a fourth crushing device 141 and a fourth screening device 142; the fourth crushing device 141 comprises a fourth crusher 1411 and a fourth feeding fan 1412, and a discharge hole of the fourth crusher 1411 is in pipeline communication with the fourth feeding fan 1412; a plurality of fourth screen holes are formed in a fourth cylindrical screen 1413 arranged in the fourth screening device 142, and the aperture of each fourth screen hole is 0.8-1.8mm, preferably 1.5 mm; the fourth crushing and screening mechanism 14 produces moxa with the purity of 15: 1.
The discharge granularity of the first crusher 1111 is 4-6 mm; the discharge particle size of the second crusher 1211 is 2 to 4mm, the discharge particle size of the third crusher 1311 is 1 to 3mm, and the discharge particle size of the fourth crusher 1411 is 0.8 to 1.8 mm; meanwhile, moxa with other purity can be prepared by setting different discharge particle sizes and sieve pore diameters through simple experiments.
The bottoms of the first screening device 112, the second screening device 122, the third screening device 132 and the fourth screening device 142 are communicated with the sorting device 5 through a first discharge pipeline 4911; four filter plates 52 are fixed in the sorting device 5, and the filter holes of the filter plates are sequentially 4-6mm, 2-4mm, 1-3mm and 0.8-1.8mm in the vertical direction. The aperture of the filter holes of the filter plate 52 is set corresponding to the sieve holes 451 of each screening device 4, so that the moxa can be filtered again, and the moxa is collected, and the dust falls out from the bottom and is collected.
The moxa with different purities is prepared, wherein the moxa with the purity of 2:1 is prepared, and the discharge granularity is 4-6 mm; preparing moxa with the purity of 3:1, wherein the discharge granularity is 2-4mm, and preparing moxa with the purity of 5:1, wherein the discharge granularity is 1-3 mm; the moxa with the purity of 15:1 is prepared, the discharge granularity is 0.8-1.8mm, the moxa with the purity of 30:1 is prepared by two crushing and screening mechanisms 1, the crushing and discharge granularity of the two crushing and screening mechanisms 1 is 0.8-1.8mm, the screening aperture of a screening device is 0.8-1.8mm, and the preparation of the moxa with different purities is realized by controlling the discharge granularity and the screening aperture. The above purities are only the common purities listed in the present application, and those skilled in the art can obtain the particle size of the discharged material and the screening pore size of other purities through simple experiments, without departing from the principle of the present application, and also fall within the scope of the present application.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and the attached drawings, or applied to other related technical fields directly or indirectly, are included in the scope of the present invention.
Claims (7)
1. A multi-stage crushing system characterized by: the device comprises at least two crushing and screening mechanisms (1), wherein the crushing and screening mechanisms (1) are connected through a joint device (2) which can control the discharge of raw materials or the feeding of the raw materials into the next crushing and screening mechanism (1); the crushing and screening mechanism (1) at least comprises a crushing device (3) and a screening device (4), the discharging particle size of the crushing device (3) is gradually reduced along the advancing direction of the raw materials, and the screening pore size of the screening device (4) is gradually reduced;
the crushing device (3) comprises a crusher (31) and a feeding fan (32), a discharge hole of the crusher (31) is communicated with an inlet pipeline of the feeding fan (32), and an outlet of the feeding fan (32) is communicated with an inlet pipeline of the screening device (4); the discharging particle size of the crusher (31) of each crushing device (3) is gradually reduced along the advancing direction of the raw materials;
the screening device (4) comprises a box body (41) and a rotating shaft (42) arranged in the box body (41); one end of the rotating shaft (42) is rotatably connected with the inner wall of the box body (41), the other end of the rotating shaft penetrates through the box body (41) and is in transmission connection with a power source (43) arranged outside the box body (41), and the rotating shaft (42) and a horizontal plane have a certain angle; a plurality of support rods (44) are fixedly arranged on the rotating shaft (42), a cylindrical screen (45) is sleeved outside the rotating shaft (42), and the cylindrical screen (45) is supported by the support rods (44) and is fixed with the rotating shaft (42); a plurality of screen holes (451) are formed on the cylindrical screen (45), and the aperture of the screen holes (451) of each screening device (4) is gradually reduced along the advancing direction of the raw materials; a feed inlet (46) is also formed in the box body (41), the feed inlet (46) is communicated with the crushing device (3) through a pipeline, and a material receiving device (47) is arranged below the box body (41); the material receiving device (47) is funnel-shaped and is fixed below a feed port (46) in the box body (41) through a fixing frame, and an outlet of the material receiving device penetrates through an opening at one end of the cylindrical screen (45); a discharge port (48) is also formed in the box body (41), and the discharge port (48) is formed below one end, far away from the material receiving device (47), of the cylindrical screen (45); a plurality of discharge ports (49) are further formed in the box body (41) below the cylindrical screen (45), discharge pipelines (491) are further communicated with the bottoms of the discharge ports (49), the discharge pipelines (491) are communicated with the discharge ports (49), one ends of the discharge pipelines (491) are communicated with a discharge fan (492), and the other ends of the discharge pipelines are further communicated with a sorting device (5) through pipelines;
the top of the box body (41) is provided with a plurality of air ports (410), the air ports (410) are communicated with a fan (411) through pipelines, and the air mode of the fan (411) blown into the box body is controlled to be 10-15 m/s.
2. The multi-stage crushing system of claim 1, wherein: the sorting device (5) comprises a sorting box body (51) and at least two filter plates (52); the filter plates (52) are fixed in the sorting box body (51) and form a certain angle with the horizontal plane, and the angles of the adjacent filter plates (52) and the horizontal plane are opposite; a separation outlet (53) is formed at the lower end of the filter plate (52) in the horizontal height and at the fixed position of the separation box body (51), and a conveying device (54) is arranged below the separation outlet (53); the filter plate (52) has filter pores with gradually reduced diameter in the vertical direction.
3. The multi-stage crushing system of claim 2, wherein: the bottom of the sorting box body (51) is provided with a dust outlet (55), and the dust outlet (55) is communicated with a dust collecting bag pipeline.
4. The multi-stage crushing system of any one of claims 1 to 3, wherein: a vibration motor (6) is also fixed outside the sorting device (5).
5. The multi-stage crushing system of claim 1, wherein: the joint device (2) comprises a switching port (21), a switching baffle plate (22), a discharging pipeline (23) and a switching pipeline (24), wherein the switching port (21) is fixed below an outlet of the screening device (4) and is of a hollow structure, the switching baffle plate (22) is rotatably connected in the switching port (21), a partition plate (211) is fixedly connected at the bottom end of the switching port (21), and the bottom of the switching port (21) is divided into a discharging outlet (212) and a switching outlet (213); a discharge pipeline (23) is fixed below the discharge outlet (212), and a switching pipeline (24) is fixed below the switching outlet (213); the switching pipeline (24) is communicated with a crushing device (3) of the next crushing and screening mechanism (1) through a pipeline; the adapter (21) is a rectangular body, and a rectangular through hole is formed in the center of the adapter; the switching baffle plate (22) is rotatably connected inside the rectangular through opening and comprises a cylindrical pin (221), a first baffle plate (222) fixedly connected with the cylindrical pin and a second baffle plate (223) symmetrically arranged with the first baffle plate (222) relative to the cylindrical pin (221), and the second baffle plate (223) is fixedly connected with the cylindrical pin (221); one end of the cylindrical pin (221) is rotatably connected with the inner wall of the adapter (21), and the other end of the cylindrical pin penetrates through the adapter (21) and is fixedly connected with the switch (224); the two sides of the first baffle (222) and the second baffle (223) are in clearance fit with the rectangular through opening, the length of the first baffle (222) is larger than the inner diameter of the rectangular through opening, and the length of the second baffle (223) is smaller than that of the first baffle (222).
6. A preparation process of multi-stage moxa is characterized by comprising the following steps: use of the multistage crushing system of claims 1 to 5, comprising the steps of:
s1: pouring the wormwood raw materials into a crusher (31) of a crushing device (3) from a feeding hole of a first crushing and screening mechanism (1), adjusting the discharging granularity of the crusher (31), and starting crushing the wormwood raw materials in the crusher (31);
s2: starting a feeding fan (32), feeding the crushed wormwood raw materials into a box body (41) of a screening device (4) from a feeding hole (46) through a pipeline under the action of the feeding fan (32), falling onto a material receiving device (47), and falling into a cylindrical screen (45) under the action of gravity;
s3: starting the power source (43), the power source (43) drives the rotating shaft (42) to start rotating, the crushed moxa raw material starts rotating in the cylindrical screen (45), moxa with the granularity smaller than the aperture of the screen hole (451) falls out from the discharge port (49), and under the action of gravity, the moxa with the granularity larger than the aperture of the screen hole (451) moves towards the discharge port (48) under the action of gravity;
s4: starting a fan (411), blowing air vertically by an air port (410), dropping moxa by the other end of the cylindrical screen (45) under the action of gravity, and dropping out of a discharge port (48);
s5: the worker controls a switch (224) of the connector device (2) to enable moxa wool to be blocked by a switching baffle plate (22) to fall into a discharging outlet (212) to be collected or fall into a switching outlet (213) to fall into a crusher (31) of a crushing device (3) of the next crushing and screening mechanism (1), the worker adjusts the discharging granularity of the crusher (31) of the next crushing and screening mechanism (1) to be smaller than that of the crusher (31) of the previous crushing and screening mechanism (1), and the moxa wool enters the next screening device (4) to be screened after being crushed;
s6: the worker starts the discharge fan (492), moxa with smaller granularity screened by the screening device (4) falls into the discharge pipeline (491) from the discharge port (49), and enters the sorting device (5) under the action of the discharge fan (492);
s7: moxa with smaller particle size enters a sorting box body (51), falls on a filter plate (52) under the action of a discharge fan (492) to be filtered again, and is filtered again on the lower filter plate (52) after passing through the filter holes of the upper filter plate (52);
s8: the worker starts the vibration motor (6), the sorting box body (51) starts to vibrate to drive each filter plate (52) to start to vibrate, and meanwhile, moxa on the filter plates (52) falls out from the sorting outlet (53) under the action of gravity and falls onto the conveying device (54);
s9: the worker starts the conveying device (54) to convey and collect moxa with different granularities out of the moxa zone.
7. The utility model provides a broken system of level four chinese mugwort grass which characterized in that: comprising the multi-stage crushing system of claims 1 to 5; a first crushing and screening mechanism (11), a second crushing and screening mechanism (12), a third crushing and screening mechanism (13) and a fourth crushing and screening mechanism (14) are sequentially arranged along the advancing direction of the raw materials; one end of the first crushing and screening mechanism (11) is a raw material adding port, the other end of the first crushing and screening mechanism is connected with the second crushing and screening mechanism (12) through a connector device (2), the other end of the second crushing and screening mechanism (12) is connected with a third crushing and screening mechanism (13) through the connector device (2), and the other end of the third crushing and screening mechanism (13) is connected with a fourth crushing and screening mechanism (14); a collecting and conveying device (15) is arranged below an outlet at the other end of the fourth crushing and screening mechanism (14);
the first crushing and screening mechanism (11) consists of a first crushing device (111) and a first screening device (112); the first crushing device (111) comprises a first crusher (1111) and a first feeding fan (1112), and a discharge hole of the first crusher (1111) is in pipeline communication with the first feeding fan (1112); a plurality of first sieve holes are formed in a first cylindrical sieve mesh (1113) arranged in the first screening device (112), and the aperture of each first sieve hole is 4-6 mm;
the second crushing and screening mechanism (12) consists of a second crushing device (121) and a second screening device (122); the second crushing device (121) comprises a second crusher (1211) and a second feeding fan (1212), and a discharge hole of the second crusher (1211) is in pipeline communication with the second feeding fan (1212); a plurality of second screen holes are formed in a second cylindrical screen (1213) arranged in the second screening device (122), and the aperture of each second screen hole is 2-4 mm;
the third crushing and screening mechanism (13) consists of a third crushing device (131) and a third screening device (132); the third crushing device (131) comprises a third crusher (1311) and a third feeding fan (1312), and a discharge hole of the third crusher (1311) is communicated with the third feeding fan (1312) through a pipeline; a plurality of third screen holes are formed in a third cylindrical screen mesh (1313) arranged in the third screening device (132), and the aperture of each third screen hole is 1-3 mm;
the fourth crushing and screening mechanism (14) consists of a fourth crushing device (141) and a fourth screening device (142); the fourth crushing device (141) comprises a fourth crusher (1411) and a fourth feeding fan (1412), and a discharge hole of the fourth crusher (1411) is communicated with the fourth feeding fan (1412) through a pipeline; a plurality of fourth screen holes are formed in a fourth cylindrical screen (1413) arranged in the fourth screening device (142), and the aperture of each fourth screen hole is 0.8-1.8 mm;
the discharge granularity of the first crusher (1111) is 4-6 mm; the discharge granularity of the second crusher (1211) is 2-4mm, the discharge granularity of the third crusher (1311) is 1-3mm, and the discharge granularity of the fourth crusher (1411) is 0.8-1.8 mm;
the bottoms of the first screening device (112), the second screening device (122), the third screening device (132) and the fourth screening device (142) are communicated with the sorting device (5) through a first discharge pipeline (4911); four filter plates (52) are fixed in the sorting device (5), and the aperture of the filter holes in the vertical direction is 4-6mm, 2-4mm, 1-3mm and 0.8-1.8mm in sequence.
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