CN118513097B

CN118513097B - Flour production milling device and milling process

Info

Publication number: CN118513097B
Application number: CN202410837774.3A
Authority: CN
Inventors: 虞连中; 董玉兰; 张燕芳; 孙桂霞; 王兆民
Original assignee: Liaocheng Yixue Flour Co ltd
Current assignee: Liaocheng Yixue Flour Co ltd
Priority date: 2024-06-26
Filing date: 2024-06-26
Publication date: 2024-11-22
Anticipated expiration: 2044-06-26
Also published as: CN118513097A

Abstract

The invention discloses a flour production grinding device and a grinding process, and relates to the technical field of flour grinding. The invention comprises a supporting frame, a feeding part, a grinding part and a collecting part, wherein the feeding part, the grinding part and the collecting part are arranged on the supporting frame; the feeding part is used for peeling and automatically feeding flour raw materials; the grinding part is matched with the feeding part and is used for quickly grinding the peeled flour raw materials; the collecting part is matched with the grinding part and is used for quickly collecting the ground flour. The advantages are that: according to the invention, the wheat bran in the flour raw material can be sufficiently removed by adopting a mode of feeding, cutting, crushing and separating and cyclone separating, and the flour raw material can be sufficiently and efficiently ground by adopting a grinding mode of side extrusion collision by adopting a plurality of grinding rollers revolving along the center and rotating, so that insufficient grinding can not occur, and the grinding effect is better.

Description

Flour production grinding device and grinding process

Technical Field

The invention relates to the technical field of flour milling, in particular to a milling device and a milling process for flour production.

Background

Flour refers to powder prepared from raw materials such as wheat, rice, corn and the like through peeling, grinding, reprocessing and other procedures, and can be prepared into various flour foods, wherein the grinding of the flour is usually completed by adopting a grinding device;

The existing grinding device adopts various modes to grind flour raw materials, for example, chinese patent publication No. CN115569699A discloses grinding equipment for flour processing, which comprises a grinding box, a driving component, a grinding cylinder, a grinding component, a grinding wheel, a vibrating component, a first screening plate and a second screening plate; the milling box is free of a top cover; the driving component is arranged on the outer wall of the bottom of the grinding box; the grinding cylinder is arranged in the grinding box; the upper end of the grinding cylinder is provided with a grinding component and a grinding wheel; the lower side of the grinding cylinder is sequentially provided with a first screening plate and a second screening plate;

the existing grinding device is used for grinding the flour raw materials in an up-down extrusion grinding mode, part of the unground flour is accumulated and mixed in the ground flour during working, so that the grinding device cannot be fully contacted with the grinding disc, the grinding is insufficient, the grinding device is used for grinding in a mode of extruding the flour by using a grinding wheel, part of unground raw materials are mixed in the ground flour during grinding, so that the grinding device cannot be fully contacted with the grinding wheel, the grinding effect is affected, the grinding device only adopts a mode of filtering and screening by using a first screening plate and a second screening plate, the screening effect is poor, and the first screening plate and the second screening plate are easy to be blocked;

It is therefore desirable to design a flour mill and a milling process for flour production to solve the above problems.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a flour production grinding device and a grinding process, which solve the problems in the prior art.

In order to achieve the above purpose, the invention is realized by the following technical scheme: the flour production and grinding device comprises a support frame, a feeding part, a grinding part and a collecting part, wherein the feeding part, the grinding part and the collecting part are arranged on the support frame;

The feeding part is used for peeling and automatically feeding flour raw materials and consists of a material guiding assembly and a driving assembly, and the material guiding assembly operates under the driving of the driving assembly to play a role in promoting the crushing, peeling and feeding of the flour raw materials;

The grinding part is matched with the feeding part and is used for quickly grinding the peeled flour raw materials, the grinding part is composed of a grinding component and an induced air component, the grinding component is used for realizing fine grinding of the flour raw materials, and the induced air component is used for assisting the grinding component to improve the grinding effect of the flour raw materials;

the collecting part is matched with the grinding part and is used for quickly collecting the ground flour.

Preferably, the driving assembly comprises a servo motor which is fixedly arranged on the supporting frame and used for driving, a driving roller is fixedly arranged on the driving end of the servo motor, a driving bevel gear is fixedly arranged on the driving roller, a linkage roller is rotatably arranged on the supporting frame, and a driven bevel gear matched with the driving bevel gear is fixedly arranged at the lower part of the linkage roller.

Preferably, the material guiding assembly comprises a feeding hopper for placing flour raw materials, a material guiding box is fixedly communicated with the lower part of the feeding hopper, a plurality of crushing blades for crushing the flour raw materials are fixedly arranged on the upper part of the linkage roller, and the crushing blades are all positioned in the feeding hopper;

the automatic screening device is characterized in that a filter plate for screening the wheat bran serving as a flour raw material is fixedly arranged in the guide box, a trash discharging box for discharging the wheat bran serving as the flour raw material is fixedly communicated with the guide box, and an electric control door is arranged in the trash discharging box.

Preferably, the grinding assembly comprises a grinding barrel fixedly arranged on the support frame through two fixing frames, a grinding box is fixedly arranged in the grinding barrel, a rotating main shaft is rotatably arranged between the grinding box and the grinding barrel, and a linkage mechanism is arranged between the rotating main shaft and the driving roller;

The rotary main shaft is fixedly provided with a plurality of elastic connecting frames, each elastic connecting frame is rotatably provided with a grinding roller matched with the inner side wall of the grinding box, the rotary main shaft is fixedly provided with a rotary wheel, the rotary wheel is fixedly provided with a plurality of turning shovel arc plates for turning shovel flour, and the turning shovel arc plates are positioned at the lower parts of the grinding rollers.

Preferably, the linkage mechanism comprises a first bevel gear fixedly arranged on the driving roller, a second bevel gear is fixedly arranged at the lower part of the rotating main shaft, and the first bevel gear is meshed with the second bevel gear.

Preferably, a plurality of collision bars matched with the grinding rollers are fixedly arranged on the inner wall of the grinding box.

Preferably, the induced air subassembly includes the induced air case of fixed mounting on the support frame, fixed mounting has a plurality of induced air wheels that are used for producing the wind-force air current on the drive roller, and a plurality of induced air wheels all are located the induced air incasement, set up a plurality of induced air holes that are used for the air supplement on the induced air case, install blast mechanism between induced air case and the milling drum.

Preferably, the blast mechanism comprises a blast pipe fixedly communicated between the air guiding box and the grinding barrel, a one-way valve is arranged in the blast pipe, the air outlet end of the blast pipe is positioned at the lower part of the grinding box in the grinding barrel, a plurality of air holes for upwind are formed in the grinding box, and a discharge pipe is arranged at the lower part of the grinding barrel.

Preferably, the collecting part comprises an air guide collecting pipe fixedly arranged on the grinding drum, the lower part of the air guide collecting pipe is rotationally communicated with an adsorption screening drum, the lower part of the adsorption screening drum is fixedly arranged on a rotating main shaft, and a plurality of cutting knives are fixedly arranged on the adsorption screening drum;

The collecting box is fixedly arranged on the supporting frame, the discharging door is arranged on the collecting box, a cyclone collecting cylinder for collecting flour and separating impurities is fixedly communicated with the collecting box through a discharging pipe, the upper part of the cyclone collecting cylinder is communicated with the air guide collecting pipe, and an exhaust pipe for exhausting air and impurities is arranged on the upper part of the cyclone collecting cylinder.

A flour milling process for the flour production is used for the flour milling device and comprises the following steps:

s1, when grinding the flour raw material, firstly placing the flour raw material into a material guiding assembly in a feeding part, starting a driving assembly to primarily crush and peel the flour raw material, and removing most of bran in the flour raw material;

S2, the crushed and peeled flour raw materials enter a grinding part through a material guiding component, and the grinding component in the grinding part can grind the flour raw materials with high efficiency;

S3, starting the grinding assembly to grind the flour raw materials, and simultaneously starting the air-inducing assembly to blow air to the grinding assembly, so that the grinding efficiency is improved, and the ground flour is blown away from the grinding assembly;

S4, the flour ground by the grinding component is blown into the collecting part under the matching of the induced air component, and the collecting part can remove the residual bran in the flour and collect the flour.

The invention provides a flour production grinding device and a grinding process. The beneficial effects are as follows:

1. This milling equipment is when grinding flour raw materials, can cut it when flour raw materials feeding and smash, both can reduce the particle size of flour raw materials, improves the efficiency of follow-up crocus, can separate the cutting bran in the flour raw materials and carry out preliminary screening again, can get rid of most bran in the flour raw materials.

2. When the flour mill grinds flour raw materials, through adopting the grinding mode of revolution and autorotation of a plurality of grinding rollers, the flour mill can grind flour raw materials fully by adopting a side wall extrusion grinding mode, can effectively avoid the situation that flour is accumulated and grinding is insufficient, and has better grinding effect.

3. This milling equipment is when grinding flour raw materials, through adopting the lower part to turn over the shovel and cooperate the mode of going up the blast air, can effectively flour raw materials pile up in grinding the box, make flour raw materials and grinding roller fully contact, further improve the effect of grinding.

4. When the flour mill grinds flour raw materials, the generated upward wind can carry the ground flour upward and rapidly discharge the flour after sieving through the adsorption sieving barrel, so that the flour raw materials can be discharged and collected, the bran in the flour raw materials can be filtered and separated again, and the removing effect of the bran is improved.

5. When the flour mill grinds flour raw materials, utilize the principle of cyclone separation, make the air current that has the impurity of flour and bran in getting into the whirlwind collecting vessel after, can rotate down in the whirlwind collecting vessel and form outer vortex, and utilize centrifugal force to throw out heavier flour in the air current and make its automatic whereabouts ejection of compact, and the vortex center of outer vortex can form the low pressure region, the gas in it receives the central low pressure region attraction and forms the interior vortex of central upward rotation, interior vortex can be in the rotatory upward direction of central low pressure region and carry the lighter bran powder of weight to make it discharge through the exhaust duct promptly, both can accomplish the collection of flour, can get rid of remaining bran in collecting process again.

In summary, the wheat bran in the flour raw material can be fully removed by adopting the feeding, cutting, crushing, separating and cyclone separating modes, and the flour raw material can be fully and efficiently ground by adopting a grinding mode of side extrusion collision by adopting a plurality of grinding rollers revolving along the center and rotating, so that insufficient grinding can not occur, and the grinding effect is better.

Drawings

The invention is described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic diagram of a flour mill and a process for producing flour according to the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 rotated by a certain angle;

FIG. 3 is a schematic view of the structure of FIG. 1 with the support frame removed;

FIG. 4 is a schematic diagram of a servo motor and a feed hopper according to the present invention;

FIG. 5 is a cross-sectional view of the upper structure of the feed hopper and the guide box of FIG. 4;

FIG. 6 is a schematic diagram of the upper structure of the servo motor, the air guiding box and the grinding drum in FIG. 3;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a schematic view of the structure of A-A in FIG. 7;

FIG. 9 is a schematic perspective view of FIG. 8;

FIG. 10 is a schematic view showing the upper structure of the polishing cassette of the present invention;

FIG. 11 is an exploded view of the structure of FIG. 10;

FIG. 12 is a schematic view of the upper structure of the cyclone collector and the collection box in FIG. 1;

fig. 13 is a schematic view showing an internal structure of the cyclone collector in fig. 12.

In the figure: 1a supporting frame, 2a servo motor, 3 an induced draft box, 4 a feed hopper, 5 a grinding cylinder, 6 a cyclone collecting cylinder, 7 a collecting box, 8 a driving roller, 9 a linkage roller, 10a guide box, 11a driving bevel gear, 12 a driven bevel gear, 13 a impurity discharging box, 14 a filter plate, 15 a crushing blade, 16 a gas guide collecting pipe, 17 a bevel gear I, 18 a bevel gear II, 19 a rotating main shaft, 20 an induced draft wheel, 21 a blast pipe, 22 an adsorption screening cylinder, 23 a grinding box, 24 a grinding roller, 25 an impact rod, 26 a cutting knife, 27 an upper air hole, 28 an elastic connecting frame, 29 a rotating wheel, 30a turning arc plate, 31 an air suction hole, 32 an exhaust pipe, 33 a blanking pipe and 34 a discharging door.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Example 1

Referring to fig. 1-3, a flour producing and milling device comprises a support frame 1, and further comprises a feeding part, a milling part and a collecting part which are arranged on the support frame 1;

The feeding part is used for peeling and automatically feeding flour raw materials, can be used for primarily crushing the flour raw materials (wheat, corn and the like), primarily screens off bran in the flour raw materials, and plays a role in primarily removing the bran;

The grinding part is matched with the feeding part and is used for quickly grinding the peeled flour raw materials, and turning shovel and blowing turning of the flour raw materials are carried out during grinding, so that the contact range and grinding time of the flour raw materials are effectively improved, and the grinding efficiency is improved;

the collecting part is matched with the grinding part and is used for quickly collecting the ground flour and removing part of bran attached to the flour during flour collection so as to realize effective separation of the flour and the bran;

the support frame 1 is provided with a control console, and the control console is used for controlling the opening and closing and the running states of the feeding part, the grinding part and the collecting part, so that the stability, the consistency and the efficiency of flour raw material grinding are improved.

Example two

Referring to fig. 2 to 5, compared with the first embodiment, the distinguishing technical scheme of the present embodiment is as follows: the feeding part consists of a material guiding component and a driving component, and the material guiding component operates under the driving of the driving component to play a role in promoting the crushing, peeling and feeding of flour raw materials;

the driving assembly comprises a servo motor 2 fixedly arranged on a supporting frame 1 and used for driving, a driving roller 8 is fixedly arranged on the driving end of the servo motor 2, a driving bevel gear 11 is fixedly arranged on the driving roller 8, a linkage roller 9 is rotatably arranged on the supporting frame 1, and a driven bevel gear 12 matched with the driving bevel gear 11 is fixedly arranged at the lower part of the linkage roller 9;

the servo motor 2 is a main driving source of the device, and when the servo motor is started, the driving roller 8 is driven to rotate, the driving bevel gear 11 on the driving roller 8 is driven to rotate when the driving roller 8 rotates, the driven bevel gear 12 meshed with the driving bevel gear 11 is driven to rotate, and therefore the linkage roller 9 is driven to rotate.

In a further embodiment, the material guiding assembly comprises a feeding hopper 4 for placing flour raw materials, a material guiding box 10 is fixedly communicated with the lower part of the feeding hopper 4, a plurality of crushing blades 15 for crushing the flour raw materials are fixedly arranged on the upper part of the linkage roller 9, and the crushing blades 15 are all positioned in the feeding hopper 4;

The flour raw material is poured into the feed hopper 4 and automatically falls into the guide box 10 under the action of gravity, at the moment, the linkage roller 9 rotates to drive the plurality of crushing blades 15 to rotate, and the falling flour raw material is cut and crushed when the crushing blades 15 rotate, so that the volume of the flour raw material is reduced, bran on the surface of the flour raw material can be cut, and the bran is separated from fruits of the flour raw material and falls;

A filter plate 14 for screening the wheat bran serving as a flour raw material is fixedly arranged in the guide box 10, a trash discharging box 13 for discharging the wheat bran serving as the flour raw material is fixedly communicated with the guide box 10, and an electric control door is arranged in the trash discharging box 13;

The flour raw material slides in the guide box 10 after being cut, when the flour raw material slides to be in contact with the filter plate 14, fruits with smaller volumes and part of bran in the flour raw material can slide continuously through the filter plate 14, and the bran with larger volumes can be blocked by the filter plate 14 and cannot pass through the filter plate, so that the primary separation of the fruits of the flour raw material from the large-volume bran is completed;

The electric control door can be opened regularly to enable the large-volume bran in the material guiding box 10 to fall into the impurity discharging box 13 for discharging, and the filter plates 14 are cleaned regularly, so that the filter plates 14 are prevented from being blocked.

Example III

Referring to fig. 1 to 3 and fig. 6 to 11, the distinguishing technical scheme of the present embodiment compared with the second embodiment is as follows: the grinding part consists of a grinding component and an induced air component, wherein the grinding component is used for realizing fine grinding of flour raw materials, and the induced air component is used for assisting the grinding component to improve the grinding effect of the flour raw materials;

The grinding assembly comprises a grinding barrel 5 fixedly arranged on a support frame 1 through two fixing frames, a grinding box 23 is fixedly arranged in the grinding barrel 5, a rotating main shaft 19 is rotatably arranged between the grinding box 23 and the grinding barrel 5, and a linkage mechanism is arranged between the rotating main shaft 19 and a driving roller 8;

the tail end of the material guiding box 10 is fixedly communicated with the grinding cylinder 5 and is positioned above the grinding box 23, and flour raw materials in the material guiding box 10 can slide into the grinding cylinder 5 after passing through the filter plate 14 and can fall into the grinding box 23, so that the conduction of the flour raw materials is completed.

The linkage mechanism comprises a first bevel gear 17 fixedly arranged on the driving roller 8, a second bevel gear 18 is fixedly arranged at the lower part of the rotating main shaft 19, and the first bevel gear 17 is meshed with the second bevel gear 18;

When the driving roller 8 rotates, the first bevel gear 17 is driven to rotate, the first bevel gear 17 rotates to drive the second bevel gear 18 meshed with the first bevel gear 17 to rotate, and the rotating main shaft 19 is driven to rotate together.

In a further embodiment, a plurality of elastic connecting frames 28 are fixedly arranged on the rotating main shaft 19, and a grinding roller 24 matched with the inner side wall of the grinding box 23 is rotatably arranged on each elastic connecting frame 28;

the rotating main shaft 19 rotates to drive the plurality of elastic connecting frames 28 on the rotating main shaft 19 to rotate, and the plurality of grinding rollers 24 on the elastic connecting frames 28 gradually keep away from the rotating main shaft 19 under the action of centrifugal force and are extruded and attached with the inner wall of the grinding box 23, so that the rotating speed of the rotating main shaft 19 can be adjusted by adjusting the rotating speed of the servo motor 2, the force of the grinding rollers 24 extruding the inner wall of the grinding box 23 is increased or reduced, the extruding force can be increased or reduced according to the size of the grinding particle size, and the graded grinding and the grinding efficiency are realized;

when the grinding roller 24 rotates and contacts and extrudes the inner wall of the grinding box 23, the grinding roller 24 rotates under the action of rotation friction force, so that autorotation can be generated, the contact part between the grinding roller 24 and the inner wall of the grinding box 23 and the contact part between the grinding roller 24 and the flour raw material can be changed, abrasion caused by long-term grinding on one side of the grinding roller 24 is avoided, and the service life of the grinding roller 24 is prolonged.

The inner wall of the grinding box 23 is fixedly provided with a plurality of collision rods 25 matched with the grinding rollers 24, the grinding rollers 24 can contact and collide with the collision rods 25 while rotating, when the grinding rollers 24 contact with the collision rods 25, the grinding rollers can compress and move towards the center under the extrusion action of the collision rods 25, when the grinding rollers do not contact with the collision rods 25, the elastic connecting frame 28 can automatically reset and drive the grinding rollers 24 to return to the original position and collide with the inner wall of the grinding box 23, so that flour raw materials on the inner wall of the grinding box 23 can be collided and ground, and the grinding effect is further improved.

The rotating main shaft 19 is fixedly provided with the rotating wheel 29, the rotating wheel 29 is fixedly provided with a plurality of turning arc plates 30 for turning flour, the turning arc plates 30 are positioned at the lower parts of the grinding rollers 24, the rotating main shaft 19 drives the turning arc plates 30 to rotate at the bottom of the grinding box 23 through the rotating wheel 29 when rotating, and the turning arc plates 30 turn flour raw materials piled at the bottom of the grinding box 23 to be shoveled when rotating at the bottom of the grinding box 23, so that the flour raw materials are shoveled to the side part of the grinding box 23, the flour raw materials can be better contacted with the grinding rollers 24, the grinding efficiency is further improved, and the phenomenon that the flour raw materials are piled at the bottom and cannot be sufficiently ground can be avoided.

In a further embodiment, the air guiding assembly comprises an air guiding box 3 fixedly installed on the support frame 1, a plurality of air guiding wheels 20 for generating wind power air flow are fixedly installed on the driving roller 8, the plurality of air guiding wheels 20 are all positioned in the air guiding box 3, and a plurality of air suction holes 31 for supplementing air are formed in the air guiding box 3;

when the servo motor 2 is started to drive the driving roller 8 to rotate, the plurality of induced air wheels 20 are driven to rotate, and the induced air wheels 20 rotate to suck external air into the induced air box 3 through the plurality of air suction holes 31, so that air supplementing is completed.

A blast mechanism is arranged between the induced draft box 3 and the grinding drum 5, the blast mechanism comprises a blast pipe 21 fixedly communicated between the induced draft box 3 and the grinding drum 5, a one-way valve is arranged in the blast pipe 21, the air outlet end of the blast pipe 21 is positioned at the lower part of a grinding box 23 in the grinding drum 5, and a plurality of upper air holes 27 for upwind are formed in the grinding box 23;

The air sucked into the air guiding box 3 is blown into the grinding drum 5 through the blast pipe 21 and is blown out through a plurality of upper air holes 27 on the grinding box 23, so that a plurality of upward wind air flows can be formed in the grinding box 23, the flour raw material in the grinding box 23 can be further driven to be raised, the flour raw material is easier to contact with the grinding roller 24 for grinding, and the subsequent flour collecting work can be facilitated.

The lower part of the grinding drum 5 is provided with a discharge pipe, when the flour raw materials are ground, part of the ground flour with smaller particle size falls to the bottom of the grinding drum 5 through a plurality of upper air holes 27, so that the part of the flour can be automatically collected, and the discharge pipe can be opened to collect the part of the flour after the grinding is finished.

Example IV

Referring to fig. 1 to 3 and fig. 9 to 13, the distinguishing technical scheme of the present embodiment compared with the third embodiment is as follows: the collecting part comprises an air guide collecting pipe 16 fixedly arranged on the grinding drum 5, and the lower part of the air guide collecting pipe 16 is rotationally communicated with an adsorption screening drum 22;

the upward wind air flow blown out from the plurality of upper air holes 27 can be carried to the upward direction of the light flour after the flour is ground, and is discharged to the outside of the flour grinding cylinder 5 through the air guide collecting pipe 16 after passing through the adsorption screening cylinder 22, when the wind air flow enters the adsorption screening cylinder 22, the flour carried in the wind air flow can enter the adsorption screening cylinder 22, the bran with larger volume in the flour and the flour fruit which is not ground can not enter the adsorption screening cylinder 22, and automatically falls into the grinding box 23 to be continuously ground under the action of gravity, so that the re-screening and grading collection of the flour are completed;

By the above operation, the air is blown into the mill 5 through the blower tube 21, the air flow is blown to the upper part of the mill box 23 through the plurality of upper air holes 27, and enters the adsorption and screening tube 22 through the plurality of screening holes on the adsorption and screening tube 22, and finally is discharged to the outside of the mill 5 through the air guide collecting tube 16.

And can realize the air current circulation in the milling tube 5 through above-mentioned blast operation to realize the quick conduction and the collection of flour at the in-process of air current circulation, can effectively avoid flour to diffuse and spread in milling tube 5, effectively reduce the concentration of powder dust in milling tube 5 in the incessant circulation of air current, and make the oxygen concentration in milling tube 5 keep unanimous (namely oxygen concentration is 21%) with the oxygen concentration of outside air all the time through the mode of inside and outside ventilation, make oxygen concentration be higher than the limit concentration (limit concentration range and 5% -15%) of dust explosion, avoid appearing the risk of dust explosion.

The lower part of the adsorption screening cylinder 22 is fixedly arranged on the rotating main shaft 19, a plurality of cutting knives 26 are fixedly arranged on the adsorption screening cylinder 22, the adsorption screening cylinder 22 can rotate along with the rotation of the rotating main shaft 19, so that the plurality of cutting knives 26 are driven to rotate, the wheat bran with larger volume and the flour fruit which is not ground can be contacted with the rotating cutting knives 26 when ascending and falling, and at the moment, the cutting knives 26 can cut and crush the wheat bran with larger volume and the flour fruit which is not ground again, so that the volume of the wheat bran is further reduced, and the flour fruit which is not ground is cut and crushed again.

In a further embodiment, a collecting box 7 is fixedly arranged on the supporting frame 1, a discharging door 34 is arranged on the collecting box 7, a cyclone collecting cylinder 6 for collecting flour and separating impurities is fixedly communicated with the collecting box 7 through a discharging pipe 33, the upper part of the cyclone collecting cylinder 6 is communicated with an air guide collecting pipe 16, and an exhaust pipe 32 for exhausting air and impurities is arranged at the upper part of the cyclone collecting cylinder 6;

The wind power air flow carrying the flour transversely rushes into the cyclone collecting cylinder 6 after passing through the air guide collecting pipe 16, because the cyclone collecting cylinder 6 is a reverse cone cylinder with a large upper part and a small lower part, the wind power air flow automatically forms a rotary downlink external vortex in the cyclone collecting cylinder 6, the centrifugal force generated by the air flow during rotation can throw the flour with heavier weight carried in the air flow out to the inner wall of the cyclone collecting cylinder 6, automatically slides into the blanking pipe 33 at the bottom under the action of gravity and falls into the collecting box 7 to finish collecting, and the bran powder with lighter weight carried in the wind power air flow continuously rotates downwards along with the air flow;

the vortex center of the rotating downlink external vortex can form a low-pressure area, and gas near the low-pressure area can form an internal vortex with the center rotating upwards under the attraction of the central low-pressure area, so that bran powder with lighter weight can be carried to rotate upwards in the central low-pressure area to the exhaust pipe 32 and is discharged through the exhaust pipe 32 to be collected, the more complete separation of flour and bran is completed, and the flour and the bran powder can be collected respectively.

The concrete milling mode of this milling equipment is as follows:

Crushing and feeding raw materials: pouring flour raw materials into a material guide box 10 through a material feeding hopper 4, automatically falling into the material feeding hopper 4 under the action of gravity, and enabling a linkage roller 9 to rotate to drive a plurality of crushing blades 15 to rotate, wherein the falling flour raw materials are cut and crushed when the crushing blades 15 rotate, so that the volume of the flour raw materials is reduced, bran on the surface of the flour raw materials can be cut, and the wheat bran is separated from fruits of the flour raw materials;

The flour raw material slides in the guide box 10 after being cut, when the flour raw material slides to be in contact with the filter plate 14, at the moment, fruits with smaller volumes and part of bran in the flour raw material can slide continuously through the filter plate 14, and the bran with larger volumes can be blocked by the filter plate 14 and can not pass through the filter plate, so that preliminary separation of the fruits of the flour raw material and the large volumes of bran is finished, the flour raw material in the guide box 10 can slide into the flour milling barrel 5 after passing through the filter plate 14 and can fall into the grinding box 23, and conduction of the flour raw material is finished.

Grinding flour fruits: the servo motor 2 is started to drive the rotating main shaft 19 to rotate through the linkage mechanism, the rotating main shaft 19 drives the plurality of elastic connecting frames 28 on the rotating main shaft 19 to rotate, the plurality of grinding rollers 24 on the elastic connecting frames 28 are gradually far away from the rotating main shaft 19 under the action of centrifugal force and are extruded and attached to the inner wall of the grinding box 23, the rotating speed of the rotating main shaft 19 can be regulated by regulating the rotating speed of the servo motor 2, so that the force of the grinding rollers 24 extruding the inner wall of the grinding box 23 is increased or reduced, the extruding force can be increased or reduced according to the size of the grinding particle size, and the grading grinding and the grinding efficiency are realized;

When the rotating main shaft 19 rotates, the rotating wheels 29 drive the plurality of turning arc plates 30 to rotate at the bottom of the grinding box 23, and when the turning arc plates 30 rotate at the bottom of the grinding box 23, the flour raw materials piled at the bottom of the grinding box 23 are turned up and shoveled up, so that the flour raw materials are lifted to the side part of the grinding box 23, the flour raw materials can better contact with the plurality of grinding rollers 24, and the phenomenon that the flour raw materials are piled at the bottom and cannot be sufficiently ground is avoided;

the servo motor 2 is started to generate upward air flow in the grinding drum 5 through the air blowing mechanism and blow out the air flow through a plurality of upper air holes 27 on the grinding box 23, so that a plurality of upward air flows can be formed in the grinding box 23, flour raw materials in the grinding box 23 can be further driven to be raised, the flour raw materials are enabled to be easier to contact with the grinding roller 24 for grinding, and subsequent flour collection work can be facilitated.

Collecting flour and separating bran powder: the upward wind air flow blown out from the plurality of upper air holes 27 can be carried to the upward direction of the light flour after the flour is ground, and is discharged to the outside of the flour grinding cylinder 5 through the air guide collecting pipe 16 after passing through the adsorption screening cylinder 22, when the wind air flow enters the adsorption screening cylinder 22, the flour carried in the wind air flow can enter the adsorption screening cylinder 22 along with the wind air flow and is injected into the cyclone collecting cylinder 6 through the air guide collecting pipe 16;

The wind air flow entering the cyclone collecting cylinder 6 automatically forms a rotary downlink external vortex in the cyclone collecting cylinder 6, the centrifugal force generated by the air flow during rotation can throw the flour with heavy weight carried in the air flow out to the inner wall of the cyclone collecting cylinder 6, automatically slides into the blanking pipe 33 at the bottom under the action of gravity and falls into the collecting box 7 to finish the collection, and the bran powder with light weight carried in the wind air flow continuously rotates downwards along with the air flow;

The embodiment of the invention also provides a flour milling process for producing flour, which is used for the flour milling device and comprises the following steps of:

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The flour production and grinding device comprises a support frame (1) and is characterized by further comprising a feeding part, a grinding part and a collecting part which are arranged on the support frame (1);

The feeding part is used for peeling and automatic feeding of flour raw materials and comprises a guide component and a driving component, the guide component runs under the driving of the driving component and plays a role in promoting the grinding, peeling and feeding of the flour raw materials, the guide component comprises a feed hopper (4) used for placing the flour raw materials, a guide box (10) is fixedly communicated with the lower part of the feed hopper (4), the driving component comprises a servo motor (2) fixedly installed on a support frame (1) and used for driving, a driving roller (8) is fixedly installed on the driving end of the servo motor (2), a driving bevel gear (11) is fixedly installed on the driving roller (8), a linkage roller (9) is rotatably installed on the support frame (1), a driven bevel gear (12) matched with the driving bevel gear (11) is fixedly installed at the lower part of the linkage roller (9), a plurality of grinding blades (15) used for grinding the flour raw materials are fixedly installed at the upper part of the linkage roller (9), and the grinding blades (15) are all located in the feed hopper (4);

A filter plate (14) for screening the wheat bran serving as a flour raw material is fixedly arranged in the guide box (10), a trash discharging box (13) for discharging the wheat bran serving as the flour raw material is fixedly communicated with the guide box (10), and an electric control door is arranged in the trash discharging box (13);

The grinding part consists of a grinding component and an induced air component, wherein the grinding component is used for realizing fine grinding of flour raw materials, the grinding component comprises a grinding barrel (5) fixedly installed on a support frame (1) through two fixing frames, a grinding box (23) is fixedly installed in the grinding barrel (5), the tail end of a guide box (10) is fixedly communicated with the grinding barrel (5), a rotating main shaft (19) is rotatably installed between the grinding box (23) and the grinding barrel (5), and a linkage mechanism is installed between the rotating main shaft (19) and a driving roller (8);

A plurality of elastic connecting frames (28) are fixedly arranged on the rotating main shaft (19), grinding rollers (24) matched with the inner side walls of the grinding boxes (23) are rotatably arranged on each elastic connecting frame (28), rotating wheels (29) are fixedly arranged on the rotating main shaft (19), a plurality of turning arc plates (30) for turning flour are fixedly arranged on the rotating wheels (29), and the turning arc plates (30) are positioned at the lower parts of the grinding rollers (24);

A plurality of collision rods (25) matched with the grinding rollers (24) are fixedly arranged on the inner wall of the grinding box (23), the grinding rollers (24) rotate and collide with the collision rods (25) in a contact manner, the grinding rollers (24) move towards the center in a compression manner under the extrusion action of the collision rods (25) when contacting with the collision rods (25), and when the grinding rollers (24) do not contact with the collision rods (25), the elastic connecting frame (28) automatically resets and drives the grinding rollers (24) to return to the original position and collide with the inner wall of the grinding box (23), so that flour raw materials on the inner wall of the grinding box (23) are collided and ground, and the grinding effect is improved;

The grinding part is matched with the feeding part and used for rapidly grinding peeled flour raw materials, the induced air component is used for assisting the grinding component in improving the grinding effect of the flour raw materials, the induced air component comprises an induced air box (3) fixedly installed on a support frame (1), a plurality of induced air wheels (20) for generating wind power air flow are fixedly installed on a driving roller (8), the induced air wheels (20) are all located in the induced air box (3), a plurality of induced air holes (31) for supplementing air are formed in the induced air box (3), and a blast mechanism is installed between the induced air box (3) and a grinding drum (5);

the blowing mechanism comprises a blowing pipe (21) fixedly communicated between the induced air box (3) and the grinding drum (5), a one-way valve is arranged in the blowing pipe (21), the air outlet end of the blowing pipe (21) is positioned at the lower part of a grinding box (23) in the grinding drum (5), a plurality of upper air holes (27) for upwind are formed in the grinding box (23), and a discharge pipe is arranged at the lower part of the grinding drum (5);

The collecting part comprises an air guide collecting pipe (16) fixedly arranged on the grinding drum (5), the lower part of the air guide collecting pipe (16) is rotationally communicated with an adsorption screening drum (22), the lower part of the adsorption screening drum (22) is fixedly arranged on a rotating main shaft (19), a plurality of cutting knives (26) are fixedly arranged on the adsorption screening drum (22), the adsorption screening drum (22) rotates along with the rotation of the rotating main shaft (19) to drive the plurality of cutting knives (26) to rotate, the wheat bran with larger volume and the wheat flour fruit which are not ground are contacted with the rotating cutting knives (26) when ascending and falling, the cutting knives (26) cut and break the wheat bran with larger volume and the wheat flour fruit which are not ground again, the volume of the wheat bran is further reduced, and the wheat flour fruit which is not ground is cut and broken again;

The device is characterized in that a collecting box (7) is fixedly arranged on the supporting frame (1), a discharging door (34) is arranged on the collecting box (7), a cyclone collecting cylinder (6) for collecting flour and separating impurities is fixedly communicated with the collecting box (7) through a discharging pipe (33), the upper part of the cyclone collecting cylinder (6) is communicated with an air guide collecting pipe (16), and an exhaust pipe (32) for exhausting air and impurities is arranged at the upper part of the cyclone collecting cylinder (6);

2. Flour mill according to claim 1, characterized in that the linkage mechanism comprises a first bevel gear (17) fixedly mounted on the driving roller (8), a second bevel gear (18) is fixedly mounted on the lower portion of the rotating main shaft (19), and the first bevel gear (17) is meshed with the second bevel gear (18).

3. A milling process for the production of flour, for a milling device according to any one of claims 1-2, comprising the steps of: