CN113877696A

CN113877696A - Flour drying device

Info

Publication number: CN113877696A
Application number: CN202111139807.XA
Authority: CN
Inventors: 史自鹏; 刘德田; 周凤才; 史胜龙
Original assignee: Wuhe Shunpeng Agricultural And Sideline Products Co ltd
Current assignee: Wuhe Shunpeng Agricultural And Sideline Products Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-01-04

Abstract

The invention relates to the technical field of flour processing equipment, and particularly discloses a flour drying device which comprises a barrel, a crushing barrel and a drying barrel, wherein a plurality of crushing pieces which are obliquely arranged upwards are connected to the inner wall of the circumference of the crushing barrel, the crushing pieces are distributed on the same spiral line at intervals, the lower end of the drying barrel is connected with a collecting hopper, the lower end of the collecting hopper is connected with a discharging pipe extending out of the barrel, a centrifugal sieve plate is arranged at the upper end of an inner cavity of the barrel, the centrifugal sieve plate, the drying barrel and the crushing barrel are arranged concentrically, and a first air heater and a second air heater are arranged beside the barrel; the flour drying device disclosed by the invention has the advantages that before the flour is dried, the non-agglomerated flour directly enters the drying cylinder for rapid drying, and the agglomerated flour is firstly crushed and then is dried by hot air in the crushing cylinder for a longer time, so that the interior of the agglomerated flour can be effectively dried, the drying uniformity of the whole processed flour is effectively ensured, and the quality of the dried flour is improved.

Description

Flour drying device

Technical Field

The invention relates to the technical field of flour processing equipment, and particularly discloses a flour drying device.

Background

Flour is a powder ground from wheat, is one of the most common food raw materials, and can be classified into high gluten flour, medium gluten flour, low gluten flour and non-gluten flour according to the protein content. The process of water spraying and wheat wetting can be carried out in the process of flour processing, so that when flour is stored, the flour needs to be dried, and the flour is prevented from being damp and mildewed.

Traditional flour is dried and is all adopted drum-type powder drying-machine, is provided with the spiral leaf in the cylinder, sets up hot-blast import from the one end of cylinder simultaneously, and the other end sets up hot-blast export, promotes the hot-blast realization drying process that flows through with the upset in-process at the spiral leaf.

For example, the invention with the application number of CN2020110180190 discloses a flour dynamic airflow type drying device, which comprises a horizontally placed roller, wherein a driving roller seat and a driven roller seat for rotatably supporting two ends of the roller are respectively installed on two sides of the roller, two ends of the roller are respectively fed through the driving roller seat and discharged through the driven roller seat, a roller driving mechanism for driving the roller to rotate is installed on the driving roller seat, an in-roller air drying mechanism extending into the roller for drying powder is installed in the driven roller seat, and the powder is continuously dried in the process of gradually turning over one end of the roller to the other end by installing the in-roller air drying mechanisms distributed transversely in the roller; the structure setting of above-mentioned flour drying device is drum-type powder drying-machine promptly, and it is big in the continuous drying process of face powder that it has realized, but this type of drum-type flour drying-machine has an important problem when drying face powder, and this type of drying-machine does not have when drying face powder to agglomerate the flour breakage promptly with other not together drying of agglomerating of flour to lead to the inside of agglomerating of flour to dry incompletely, and the not agglomerating of flour probably influences the flour quality because the stoving time is longer. Consequently, to the above-mentioned not enough of current drum-type powder drying-machine, this application provides one kind can be to caking flour with do not cake the flour separate, dry alone again to can carry out the flour drying device of broken stoving to the caking flour.

Disclosure of Invention

The invention aims to design a flour drying device capable of effectively solving the technical problems aiming at the defects of the existing drum-type powder drying machine in the process of drying flour, so as to ensure that the drying effect of all flour is uniform and the quality of the dried flour is not influenced.

The invention is realized by the following technical scheme:

the utility model provides a flour drying device, includes from outer barrel, broken section of thick bamboo and the stoving section of thick bamboo that inwards sets up with one heart in proper order, will broken section of thick bamboo rotates the inside that sets up at the barrel to be provided with on the barrel and be used for driving broken section of thick bamboo pivoted power component.

Be connected with the broken piece that a plurality of slopes set up on broken section of thick bamboo's the circumference inner wall to a plurality of broken piece interval distribution are on same helix, cut off the breakage by rotatory broken piece when broken flour falls along broken section of thick bamboo inner wall, and because the setting of being helix formula distribution of broken piece can be upwards promoted by broken piece in rotatory cutting process, thereby the fall time of extension flour in broken section of thick bamboo, increase by hot-blast drying's the length of time and by the number of times that broken piece acted on, guarantee the stoving effect of broken flour.

Meanwhile, a large number of through holes are formed in the bottom wall of the crushing barrel, a feed opening is formed in the bottom wall of the barrel, and dried flour falls into the bottom wall of the barrel through the through holes and is discharged out of the barrel along the feed opening.

The lower extreme of a stoving section of thick bamboo is connected with the collecting hopper, the lower extreme of collecting hopper is connected with the row's material pipe that stretches out the barrel, and arranges the material pipe and rotate with the bearing on the broken bobbin base wall and be connected and with barrel fixed connection. Through the arrangement, the drying cylinder can be prevented from being influenced by the rotation of the crushing cylinder, and is always fixedly arranged in the inner cavity of the crushing cylinder.

The centrifugal sieve plate is arranged at the upper end of the inner cavity of the barrel body, and is arranged concentrically with the drying barrel and the crushing barrel, the diameter of the centrifugal sieve plate is larger than that of the drying barrel and smaller than that of the crushing barrel, a centrifugal motor for driving the centrifugal sieve plate to rotate is arranged on the upper surface of the barrel body, and a blanking pipe extending to the circle center of the centrifugal sieve plate is connected to the barrel body; the setting of centrifugation unloading subassembly can still make the flour of taking processing fall into the centre of a circle department of centrifugal sieve from the unloading pipe, then move around under the effect of centrifugal force to the powdery flour that does not cake at the in-process of motion sees through the sieve mesh and directly falls into a stoving section of thick bamboo and carries out fast drying, and the caking flour that does not sieve then falls into a broken section of thick bamboo, then is broken by broken piece when falling down along a broken section of thick bamboo and promotes, thereby carries out breakage and long-time drying process to it.

A first air heater and a second air heater are arranged beside the barrel, the first air heater is connected with a first hot air pipe extending into the drying barrel along a discharge pipe, the upper end of the first hot air pipe is circumferentially connected with a plurality of first hot air nozzles which are obliquely arranged upwards, the second air heater is connected with a second hot air pipe extending into the barrel, the second hot air pipe is connected with a spiral air pipe wound on the outer wall of the drying barrel, and the spiral air pipe is uniformly connected with a plurality of second hot air nozzles which are obliquely arranged upwards; the drying temperature and the air volume of the first air heater and the second air heater can be independently controlled and adjusted according to the actual condition of flour to be processed, so that the flour which is not caked can be quickly dried, and the caked flour can be dried for a long time while being broken.

As a further arrangement of the scheme, an opening at the upper end of the crushing barrel is connected with an annular plate which is outwards opened, and a large number of crushing teeth are arranged on the inner wall of the annular plate; the ring plate and the crushing teeth on the ring plate can carry out preliminary impact crushing on the caked flour thrown away by centrifugation, and the follow-up crushing and drying effects are ensured.

As a further arrangement of the scheme, an upper bearing ring and a lower bearing ring are arranged on the inner wall of the barrel body, and the outer wall of the crushing barrel is connected with the bearing rings; the arrangement of the two bearing rings can ensure that the crushing barrel can stably rotate in the barrel.

As a further arrangement of the above scheme, the power assembly comprises a driving motor, an output shaft of the driving motor is connected with a gear, and the outer wall of the crushing barrel is connected with a gear ring meshed with the gear; the above is only one power means for driving the crushing drum in rotation.

As a further arrangement of the above scheme, the lower surface of the crushing cylinder is connected with a scraping plate which is arranged in the radial direction; the flitch of scraping that its set up can be along with the rotation of broken section of thick bamboo is automatic to be realized scraping the material, and the flour that will fall on the barrel diapire is whole to be scraped into the feed opening and is arranged down.

As a further arrangement of the scheme, a cyclone separator is fixedly connected to the outer wall of the cylinder body, and an induced draft pipe communicated with the top end of the cylinder body is connected to the cyclone separator; the flour in the hot air can be settled through the arranged cyclone separator, and the workshop environment can be improved.

As a further arrangement of the scheme, an auger feeder is arranged above the cylinder body and connected with a discharging pipe, two auger discharging machines are arranged below the cylinder body and respectively connected with a discharging pipe and a discharging opening; the auger feeder of above-mentioned setting can realize even unloading, and two auger discharge machines of its setting can carry out the fixed point with the flour after drying and collect.

Has the advantages that:

1) the flour drying device disclosed by the invention is used for screening flour according to the caking condition of the flour before drying the flour, the non-caking flour directly enters the drying cylinder for rapid drying, the caking flour is firstly crushed and then is dried by hot air for a longer time in the crushing cylinder, so that the interior of the caking flour can be effectively dried, the drying uniformity of the whole processed flour is effectively ensured, and the quality of the dried flour is improved.

2) According to the invention, through the structural arrangement of the centrifugal sieve plate, flour is screened and dried in different regions by using centrifugal force, agglomerated flour is thrown off from the centrifugal sieve plate and then is firstly collided with crushing teeth for primary crushing, and then is cut off by the crushing pieces when falling along the inner wall of the crushing barrel, and the crushing pieces are spirally arranged, so that the crushed flour has a certain lifting process in the falling process, the falling process of the flour is slowed down, the time for drying the flour by hot air is prolonged, the crushed flour is effectively ensured to be fully dried, and the drying effect of the flour dried in different regions is uniform.

3) The invention also arranges a cyclone separator to settle the flour in the hot air, which not only reduces the waste of the flour, but also optimizes the whole workshop environment; in addition, the auger feeder and the feeding and discharging machine are arranged to realize uniform feeding in the drying process, powder can be collected at fixed points, and the using effect is more excellent.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the inner plane structure of the cylinder according to the present invention;

FIG. 3 is a schematic perspective half-section view of the cartridge of the present invention;

FIG. 4 is a schematic view of a first angular perspective of a gyratory crusher bowl assembly according to the present invention;

FIG. 5 is a schematic view of a second angular perspective of a gyratory crusher bowl assembly according to the present invention;

FIG. 6 is a schematic perspective view of a centrifugal blanking assembly according to the present invention;

FIG. 7 is a schematic view of the three-dimensional structure of the powder drying drum, the collecting hopper and the first auger discharging machine of the present invention.

Wherein:

1-cylinder, 2-air heater, 3-support leg;

400-rotating crushing cylinder assembly, 401-crushing cylinder, 402-ring plate, 403-bearing ring, 404-gear ring, 405-driving motor, 406-power gear, 407-crushing tooth, 408-crushing sheet, 409-bearing, 410-through hole, 411-scraping plate and 412-feeding port;

500-centrifugal blanking assembly, 501-centrifugal motor, 502-centrifugal sieve plate, 503-blanking pipe;

600-powder drying cylinder, 601-aggregate bin, 602-discharge pipe;

7-cyclone separator, 8-induced air pipe, 9-auger feeder, 10-storage hopper, 11-first auger discharging machine and 12-second auger discharging machine.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", and,

The terms "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like, refer to an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying drawings 1 to 7, in conjunction with the embodiments.

Example 1

Embodiment 1 discloses a flour drying device, referring to fig. 1, fig. 2 and fig. 3, the main body of the flour drying device comprises a cylinder 1 and two air heaters 2, and two air heaters 12 are arranged at the side of the cylinder 1. The lower end of the cylinder body 1 is uniformly connected with a plurality of support legs 3, and the cylinder body 1 is stably supported above the ground through the connected support legs 3.

A rotary crushing cylinder assembly 400 is arranged in the cylinder body 1 and is coaxial with the cylinder body, wherein the rotary crushing cylinder assembly 400 comprises a crushing cylinder 401 and a ring plate 402 connected to an opening at the upper end of the crushing cylinder 401, and the ring plate 402 is outwards opened. An upper bearing ring 403 and a lower bearing ring 403 are arranged between the inner wall of the barrel body 1 and the crushing barrel 401, and the crushing barrel 401 can rotate in the barrel body 1 through the connection effect of the bearing rings 403.

Meanwhile, a gear ring 404 is welded on the outer surface of the crushing barrel 401, a driving motor 405 is fixedly mounted on the outer surface of the barrel 1, a power gear 406 is connected to an output shaft of the driving motor, a notch is formed in the barrel 1 at the position of the power gear 406, and the power gear 406 extends into the barrel 1 through the notch to be meshed with the gear ring 404. The driving motor 405 is a power source, and the crushing cylinder 401 can be driven to rotate through the meshing transmission between the gear ring 404 and the power gear 406.

A large number of crushing teeth 407 are welded on the inner side face of the ring plate 402, a large number of crushing pieces 408 which are obliquely arranged upwards are welded on the inner wall of the crushing barrel 401, all the crushing pieces 408 are distributed on the same spiral line at intervals, a bearing 409 is arranged at the circular position of the lower surface of the crushing barrel 401, a large number of through holes 410 are formed in the lower surface of the crushing barrel 401 which is located on the periphery of the bearing 409, caked flour falls on the bottom wall of the crushing barrel 401 after being crushed and dried, and then the caked flour is discharged from the through holes 410. The lower surface of the crushing cylinder 401 is connected with a scraping plate 411 which is arranged in the radial direction, the bottom wall of the cylinder 1 is provided with a feed opening 412, the crushed and dried flour falls on the bottom wall of the cylinder 1, and then the crushed and dried flour is discharged from the feed opening 412 under the action of the scraping plate 411.

The upper end of the barrel 1 is provided with a centrifugal blanking assembly 500, the centrifugal blanking assembly comprises a centrifugal motor 501 arranged on the upper surface of the barrel 1, the lower end of an output shaft of the centrifugal motor 501, which extends into an inner cavity of the barrel 1, is connected with a circular centrifugal sieve plate 502, the circle center of the centrifugal sieve plate 502 is also arranged on the central axis of the barrel 1, and the diameter of the centrifugal sieve plate 502 is between the inner diameter of the crushing barrel 401 and the outer diameter of the powder drying barrel 600. Meanwhile, the upper end of the cylinder 1 is connected with a blanking pipe 503 extending to the circle center of the centrifugal sieve plate 13. The flour to be dried is conveyed to the circle center of the centrifugal sieve plate 502 through the discharging pipe, then the centrifugal sieve plate is rotated under the driving of the centrifugal motor 501, the flour moves around under the action of centrifugal force, and the loose flour which is not caked in the moving process can fall through sieve holes in the centrifugal sieve plate 502, and the caked flour can not fall through the sieve holes and is directly thrown off from the excircle of the centrifugal sieve plate 502.

The inside at broken rotary drum 4 is provided with powder drying cylinder 600 to powder drying cylinder 600 also sets up with barrel 1 coaxial line, is connected with collecting hopper 601 at the lower extreme of broken section of thick bamboo 401, and wherein the inside of powder drying cylinder 600 is the powder drying zone, forms the broken drying zone of caking material between powder drying cylinder 600 and the broken rotary drum 4. The lower end of the collecting hopper 601 is connected with a discharge pipe 602, and the discharge pipe 602 is rotatably connected with a bearing 409 on the bottom wall of the crushing cylinder 401, then extends out of the bottom wall of the cylinder body 1 and is welded and fixed with the cylinder body.

One of the air heaters 2 is connected with a first hot air duct 201, the first hot air duct 201 extends into the powder drying cylinder 600 from a discharge pipe 602, and a plurality of first hot air nozzles 202 which are obliquely and upwardly arranged are circumferentially connected to the first hot air duct 201 in the powder drying cylinder 600. The other air heater 2 is connected with a second hot air duct 203, the second hot air duct 203 extends into the inner cavity of the barrel from the side surface of the barrel 1, and is connected with a spiral air pipe 204 fixedly arranged around the outer wall of the powder drying barrel 600, the spiral air pipe 204 is arranged in the caking material crushing and drying area, and the spiral air pipe 204 is connected with a plurality of second hot air nozzles 205 which are obliquely and upwards arranged towards the inner wall of the crushing barrel 401. The caked flour falls into the crushing and drying area of the caked material and is subjected to the crushing effect of the crushing pieces 408, and the quick drying can be realized by the hot air drying effect in the crushing process.

The process of the flour drying device disclosed in the embodiment 1 when drying flour is as follows:

firstly, the flour to be dried is thrown into the circle center of the centrifugal sieve plate 502 through the discharging pipe, then the flour moves towards the outer edge of the centrifugal sieve plate 502 under the action of centrifugal force when the centrifugal sieve plate 502 rotates, the non-agglomerated flour falls into the powder drying cylinder 600 through the sieve holes and is under the action of hot air discharged by the first hot air nozzle 202, the flour is dried quickly and in short time, and the flour is discharged from the discharging pipe 602 after being dried.

The caked flour does not penetrate through the sieve holes on the centrifugal sieve plate 502 and is thrown off from the outer edge of the centrifugal sieve plate, falls on the ring plate 402 to collide with the crushing teeth 407 to realize primary crushing, is further crushed by the crushing pieces 408 rotating at high speed when falling along the inner wall of the crushing cylinder 401, and is dried under the action of hot air discharged from the second hot air nozzle 205.

And because a plurality of broken pieces 408 on broken section of thick bamboo 401 slope upwards sets up and interval distribution is on same helix for broken piece 408 not only has the crushing effect to flour but also has the effect of upwards promoting at broken section of thick bamboo pivoted in-process to the flour, slows down the time of flour whereabouts, and the time of making the flour after the breakage longer by hot-blast drying, effectively guarantees the stoving effect of broken back flour.

Finally, the crushed and dried flour falls into the bottom wall of the barrel 1 from the through hole 410 and is discharged from the discharge opening 412 under the action of the scraper plate 411, so that the drying effect of the discharged flour is the same as that of the flour discharged from the discharge pipe 602.

Example 2

Embodiment 2 discloses a cyclone separator, an auger feeding machine and an auger discharging machine which are added on the basis of embodiment 1, the same parts with embodiment 1 are not explained again, and the difference refers to the attached drawing 1.

This embodiment 2 still has a cyclone 7 in the side of barrel 1 through the fixed welding of connecting block, and the upper end side of its barrel 1 is connected with induced duct 8 to be connected induced duct 8's tip and cyclone 7. When sending into hot-blast drying to flour, through the effect of induced duct 8 with hot-blast and the dust suction cyclone 7 that mix with in the hot-blast for flour among the hot-blast subsides in cyclone, the waste of flour when can effectively preventing flour drying on the one hand, and the environment in workshop when two aspects can effectively improve whole drying device operation prevents that flour from causing dust pollution in along with the hot-blast environment of discharging into.

In addition, still set up an auger feeder 9 in the top of barrel 1, the upper end of auger feeder 9 is connected with storage hopper 10 to be connected the discharge end of auger feeder 9 with the unloading pipe of barrel 1 upper end, can realize at the uniform velocity material loading through setting up of auger feeder 9 and dry. A first auger discharging machine 11 and a second auger discharging machine 12 are arranged below the cylinder 1, wherein the first auger discharging machine 11 is connected with the discharging pipe 602 and is used for receiving the flour dried in the discharging pipe 602. The second auger discharging machine 12 is connected with a material collecting pipe and is connected with the discharging port 412 on the cylinder 1, and the second auger discharging machine 12 is used for receiving the flour material after crushing and drying. And finally, conveying the dried flour into a bin of a flour packaging system through a first auger discharging machine 11 and a second auger discharging machine 12.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The flour drying device is characterized by comprising a barrel body, a crushing barrel and a drying barrel which are concentrically arranged from outside to inside in sequence, wherein the crushing barrel is rotatably arranged inside the barrel body, a power assembly for driving the crushing barrel to rotate is arranged on the barrel body, a plurality of crushing pieces which are obliquely arranged upwards are connected to the circumferential inner wall of the crushing barrel, the crushing pieces are distributed on the same spiral line at intervals, a large number of through holes are formed in the bottom wall of the crushing barrel, and a discharging hole is formed in the bottom wall of the barrel body;

the lower end of the drying cylinder is connected with a collecting hopper, the lower end of the collecting hopper is connected with a discharging pipe extending out of the cylinder body, the discharging pipe is rotatably connected with a bearing on the bottom wall of the crushing cylinder and is fixedly connected with the cylinder body, a centrifugal sieve plate is arranged at the upper end of an inner cavity of the cylinder body, the centrifugal sieve plate is concentrically arranged with the drying cylinder and the crushing cylinder, the diameter of the centrifugal sieve plate is larger than that of the drying cylinder and smaller than that of the crushing cylinder, a centrifugal motor for driving the centrifugal sieve plate to rotate is arranged on the upper surface of the cylinder body, and a discharging pipe extending to the circle center of the centrifugal sieve plate is connected onto the cylinder body;

barrel side is provided with air heater one and air heater two, be connected with on the fan one along arranging the hot-blast main that the material pipe stretched into in the section of thick bamboo of drying, the upper end circumference of hot-blast main is connected with hot-blast nozzle one that a plurality of slopes set up, be connected with on the air heater two and stretch into the hot-blast main two in the barrel, be connected with the spiral duct around on the section of thick bamboo outer wall of drying on the hot-blast main two, evenly be connected with hot-blast nozzle two that a plurality of slopes set up on the spiral duct.

2. The flour drying device as claimed in claim 1, wherein the upper opening of the crushing barrel is connected with an annular plate which is opened outwards, and a large number of crushing teeth are arranged on the inner wall of the annular plate.

3. The flour drying device as claimed in claim 1, wherein the inner wall of the barrel body is provided with an upper bearing ring and a lower bearing ring, and the outer wall of the crushing barrel is connected with the bearing rings.

4. The flour drying device as claimed in claim 3, wherein the power assembly comprises a driving motor, a gear is connected to an output shaft of the driving motor, and a gear ring meshed with the gear is connected to the outer wall of the crushing barrel.

5. The flour drying device as claimed in claim 1, wherein the lower surface of the crushing barrel is connected with radially arranged scraping plates.

6. The flour drying device as claimed in any one of claims 1 to 5, wherein a cyclone separator is fixedly connected to the outer wall of the barrel, and an induced draft tube communicated with the top end of the barrel is connected to the cyclone separator.

7. The flour drying device according to any one of claims 1 to 5, wherein an auger feeder is arranged above the barrel and connected with a discharging pipe, and two auger discharging machines are arranged below the barrel and connected with a discharging pipe and a discharging opening respectively.