Flour milling unit

Abstract

The utility model provides a flour milling unit. The flour milling unit comprises a bucket type feeding machine, a grain cleaning machine, a clean grain storage machine, a flour milling machine and a flour extracting and screening machine which are connected in sequence, wherein the bucket type feeding machine is used for feeding raw wheat with impurities into the grain cleaning machine, and the grain cleaning machine is used for removing the impurities of the raw wheat with the impurities and feeding clean grains into the clean grain storage machine; the powder extracting and screening machine is provided with a powder extracting channel, a powder discharging channel and a bran discharging channel, the powder extracting and screening machine is provided with a hopper under the bran discharging channel, and the hopper is used for receiving bran discharged from the bran discharging channel; wherein the clean grain storage machine is used for conveying clean grains to the hopper, the flour mill is connected with the hopper through a material lifting pipe, and a discharge port of the flour mill is connected with the flour lifting channel; a bag receiving device used for clamping packaging bags is arranged on the powder discharging channel. According to the flour milling unit provided by the utility model, the structural compactness of the whole machine can be improved, the occupied installation and layout space is reduced, and market popularization and application are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to flour processing machinery technical field, concretely relates to a flour milling unit. BACKGROUND

[0002] The process of processing wheat into flour needs to pass through many procedures, and each procedure needs to be configured with corresponding mechanical equipment, such as a grain cleaning machine for cleaning wheat, a square warehouse for storing clean grain, a flour mill, a powder selecting machine and the like, in addition, in order to meet the environmental protection requirements, corresponding dust removal equipment is also required, since each equipment is independent of each other, and each equipment needs to be left with sufficient operation space, in this way, the whole processing system has great deficiency in compactness, and the current system scheme that can integrate the equipment required for flour processing and compactly arrange in the form of a unit has great market potential. SUMMARY

[0003] The utility model embodiment provides a flour milling unit, aims at forming the integrated installation scheme of flour processing equipment, improves overall layout compactness, reduces installation occupied space.

[0004] In order to achieve the above object, the utility model adopts the technical scheme of providing a flour milling unit, including the bucket feeder, the grain cleaning machine, the clean grain storage machine, the flour mill and the powder lifting and screening machine connected in sequence, wherein the bucket feeder is used for feeding the wheat with impurities to the grain cleaning machine, the grain cleaning machine is used for removing the impurities of the wheat with impurities and sending the clean grain to the clean grain storage machine, the powder lifting and screening machine has the powder lifting channel, the powder outlet channel and the bran outlet channel, and the powder lifting and screening machine is provided with the hopper below the bran outlet channel, and the hopper is used for receiving the bran discharged from the bran outlet channel, wherein the clean grain storage machine is used for conveying the clean grain to the hopper, the flour mill is connected with the hopper through the lifting pipe, and the discharge port of the flour mill is connected with the powder lifting channel, and the powder outlet channel is provided with the bag clamping device for clamping the packaging bag.

[0005] In a possible implementation manner, the hopper is provided with a partition plate, the partition plate divides the internal space of the hopper into a clean grain cavity and a bran cavity, the cavity bottoms of the clean grain cavity and the bran cavity are provided with discharge augers, and the two discharge augers are connected with the lifting pipe, wherein the clean grain storage machine is connected with the clean grain cavity, and the bran outlet channel is connected with the bran cavity.

[0006] In some embodiments, the sidewall of the hopper is fixedly connected with a bran discharging pipe penetrating into the bran cavity, the bran discharging pipe corresponds to the outlet position of the bran outlet channel, the bran cavity is provided with a movable shutter, the movable shutter has a first state of shielding the bran discharging pipe and a second state of avoiding the bran discharging pipe.

[0007] Illustratively, the hopper slides above the partition and is provided with an operating rod, the operating rod is connected with a guide plate and a movable shutter; wherein, when the operating rod drives the movable shutter to move below the bran outlet, a first state is formed, and when the operating rod drives the guide plate to move below the bran outlet, a second state is formed.

[0008] Illustratively, two ends of the operating rod are respectively rotationally connected with two opposite sidewalls of the hopper, for driving the guide plate and the movable shutter to swing to form an inclined state of guiding the bran to one of the clean grain chamber and the bran chamber.

[0009] In a possible implementation, the flour lifting and screening machine is provided with a flour outlet chute, the flour outlet chute is connected with the flour outlet channel and connected with the bag receiving device through a flour outlet air lock; the flour mill is provided with a feeding air lock, the feeding air lock is connected with a feeding chute above, and the feeding chute is connected with the lifting pipe.

[0010] In some embodiments, the flour lifting and screening machine is provided with a first dust removal fan, the first dust removal fan is connected with the flour outlet chute through a first air pipe and connected with the feeding chute through a second air pipe.

[0011] Illustratively, the suction side of the first dust removal fan is provided with a bellows, the first air pipe and the second air pipe are respectively communicated with the bellows; the exhaust side of the dust removal fan is connected with a first dust collector through a third air pipe.

[0012] Illustratively, the second dust removal fan is connected with a second dust collector through a fourth air pipe.

[0013] In some embodiments, the bucket feeder is connected with the grain cleaning machine through a first vertical auger, the grain cleaning machine is connected with the clean grain storage machine through a second vertical auger, and the clean grain storage machine is connected with the hopper through a third vertical auger.

[0014] The flour milling unit has the advantages that compared with the prior art, the flour milling unit directly pours the raw wheat with impurities into the hopper of the hopper feeder, feeds the raw wheat with impurities into the grain cleaning machine by the hopper feeder, removes the wheat impurities, and then enters the clean grain storage machine, the clean grain is continuously and uniformly conveyed into the hopper by the clean grain storage machine, then the clean grain in the hopper is sent into the flour mill by the material lifting pipe for processing, the powder produced after grinding is separated by the powder lifting and screening machine, the separated flour is discharged into the packaging bag clamped on the bag receiving device through the powder discharge channel, and the bran is directly discharged into the hopper and then enters the flour mill by the material lifting pipe for secondary grinding, so that the grinding process is repeated for several times between the hopper, the flour mill and the powder lifting and screening machine, the number of the flour mill can be reduced, manual operation space is not required between the flour mill and the powder lifting and screening machine, the overall layout compactness of the equipment is improved, the hopper is integrated below the powder lifting and screening machine, the hopper can feed the flour mill and directly receive the bran discharged from the bran discharge channel, and the bran is returned to the flour mill for secondary grinding, so that the overall structure compactness of the machine is further improved, the installation layout space is reduced, and the machine is favorable for market promotion and application. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A top view structural schematic diagram of the flour milling unit provided by the utility model embodiment is shown in the figure.

[0016] Figure 2 A three-dimensional structural schematic diagram of the flour milling unit provided by the utility model embodiment is shown in the figure.

[0017] Figure 3 A three-dimensional structural schematic diagram of the powder lifting and screening machine used by the utility model embodiment is shown in the figure.

[0018] Figure 4 A three-dimensional structural schematic diagram of the hopper used by the utility model embodiment is shown in the figure.

[0019] Fig. 10, hopper feeder; 20, grain cleaner; 21, second dust removal fan; 22, fourth air pipe; 23, second dust remover; 30, clean grain storage machine; 40, flour mill; 41, lifting pipe; 42, feeding air lock; 43, feeding screw conveyor; 50, powder lifting and screening machine; 51, powder lifting channel; 52, powder discharging channel; 521, bag connecting device; 522, powder discharging air lock; 53, bran discharging channel; 54, powder discharging screw conveyor; 55, first dust removal fan; 551, first air pipe; 552, second air pipe; 553, air box; 554, third air pipe; 555, first dust remover; 60, hopper; 61, partition; 601, clean grain cavity; 602, bran cavity; 62, discharging auger; 63, bran discharging pipe; 64, movable shutter; 65, operating rod; 66, guide plate; 70, first vertical auger; 80, second vertical auger; 90, third vertical auger. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0021] It should be noted that when an element is referred to as being "disposed on", "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or indirectly on, connected or coupled to the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or several features. In the description of the present application, the meaning of "a plurality of", "several" is two or more, unless otherwise specifically limited.

[0022] Please refer to Figures 1 to 4The flour milling unit comprises a hopper feeder 10, a grain cleaning machine 20, a clean grain storage machine 30, a flour mill 40 and a powder lifting and screening machine 50 which are sequentially connected, wherein the hopper feeder 10 is used for feeding the mixed raw wheat to the grain cleaning machine 20, the grain cleaning machine 20 is used for removing the impurities from the mixed raw wheat and sending the clean grain to the clean grain storage machine 30, the powder lifting and screening machine 50 is provided with a powder lifting channel 51, a powder discharging channel 52 and a bran discharging channel 53, and the powder lifting and screening machine 50 is provided with a hopper 60 below the bran discharging channel 53, the hopper 60 is used for receiving the bran discharged from the bran discharging channel 53, the clean grain storage machine 30 is used for sending the clean grain to the hopper 60, the flour mill 40 is connected with the hopper 60 through a lifting pipe 41, and the discharge port of the flour mill 40 is connected with the powder lifting channel 51, and the powder discharging channel 52 is provided with a bag clamping device 521.

[0023] Compared with the prior art, the flour milling unit directly pours the mixed raw wheat into the hopper 60 of the hopper feeder 10, feeds the mixed raw wheat into the grain cleaning machine 20 through the hopper feeder 10, removes the impurities from the mixed raw wheat and then enters the clean grain storage machine 30, continuously and uniformly sends the clean grain to the hopper 60 through the clean grain storage machine 30, sends the clean grain in the hopper 60 into the flour mill 40 through the lifting pipe 41 for processing, the powder produced after grinding enters the powder lifting and screening machine 50 through the powder lifting channel 51 for screening, the screened flour is discharged into the packaging bag clamped on the bag clamping device 521 through the powder discharging channel 52, and the bran directly falls into the hopper 60 and then enters the flour mill 40 through the lifting pipe 41 for secondary grinding, so that the mixed raw wheat is repeatedly ground for several times between the hopper 60, the flour mill 40 and the powder lifting and screening machine 50, the number of the flour mill 40 can be reduced, manual operation space is not required between the flour mill 40 and the powder lifting and screening machine 50, the overall layout compactness of the equipment is improved, the hopper 60 is integrated below the powder lifting and screening machine 50, the clean grain can be fed to the flour mill 40, the bran discharged from the bran discharging channel 53 can be directly received and then returned to the flour mill 40 for secondary grinding, the overall structure compactness of the machine is further improved, the installation layout space is reduced, and the market promotion and application are facilitated.

[0024] In some embodiments, referring to Figure 4 The hopper 60 is provided with a partition plate 61, the partition plate 61 divides the internal space of the hopper 60 into a clean grain cavity 601 and a bran cavity 602, the cavity bottoms of the clean grain cavity 601 and the bran cavity 602 are provided with discharge augers 62, the two discharge augers 62 are connected with the lifting pipe 41, the clean grain storage machine 30 is connected with the clean grain cavity 601, and the bran discharging channel 53 is connected with the bran cavity 602.

[0025] The interior space of the hopper 60 is divided into a clean grain chamber 601 and a bran chamber 602 by the partition 61. In the flour processing, the clean grain chamber 601 is firstly continuously fed with clean grain by the clean grain storage machine 30, and then the clean grain is transported to the lifting pipe 41 by the discharge auger 62 at the bottom of the clean grain chamber 601 and fed into the flour mill 40 through the lifting pipe 41 for grinding. The ground flour is transported to the lifting and screening machine 50 through the lifting flour channel 51 for screening. The screened flour is fed into the flour outlet channel 52 and finally falls into the packaging bag clamped by the bag holder 521, while the coarse flour and bran that do not meet the required quality fall into the bran chamber 602 through the bran outlet channel 53. When the material level in the bran chamber 602 is high enough, the feeding of the clean grain into the clean grain chamber 601 is stopped, and the discharge auger 62 at the bottom of the bran chamber 602 is opened to return the bran to the flour mill 40 through the lifting pipe 41 for secondary grinding. The bran screened after the secondary grinding can be fed into the flour mill 40 again for three or more times of grinding, so as to ensure the final flour yield. When the material level in the bran chamber 602 decreases to the bottom, the clean grain is fed into the clean grain chamber 601 again. The bran is prevented from mixing with the clean grain by the chamber division, so as to ensure the processing efficiency.

[0026] As a specific embodiment of the hopper 60, please refer to Figure 4 The side wall of the hopper 60 is fixedly connected with a bran discharge pipe 63 penetrating into the bran chamber 602, and the bran discharge pipe 63 corresponds to the outlet position of the bran outlet channel 53. The bran chamber 602 is provided with a movable shutter 64, which has a first state of shielding the bran discharge pipe 63 and a second state of avoiding the bran discharge pipe 63.

[0027] The bran is discharged outward through the bran discharge pipe 63. Specifically, when the bran needs to be returned to the flour mill 40 for regrinding, the movable shutter 64 is shielded to avoid the bran discharged from the bran outlet channel 53 from falling into the bran discharge pipe 63. When the bran is ground for the target number of times, the movable shutter 64 is switched to the second state of avoiding the bran discharge pipe 63, so that the bran discharged from the bran outlet channel 53 directly falls into the bran discharge pipe 63 and is discharged from the hopper 60.

[0028] Further, please refer to Figure 4 The operating rod 65 is slidably arranged above the partition 61 of the hopper 60, and the operating rod 65 is connected with the guide plate 66 and the movable shutter 64. When the operating rod 65 drives the movable shutter 64 to move below the bran outlet channel 53, the first state is formed, and when the operating rod 65 drives the guide plate 66 to move below the bran outlet channel 53, the second state is formed. The guide plate 66 and the movable shutter 64 are driven to move by the axial sliding of the operating rod 65, so as to switch the first state and the second state, which is simple, compact and convenient to operate.

[0029] It should be noted that, asFigure 4 As shown, the two ends of the operating rod 65 are respectively rotationally connected with the two opposite sidewalls of the hopper 60, for driving the guide plate 66 and the movable shutter 64 to swing to form an inclined state for guiding the material to one of the bran chamber 602 and the clean grain chamber 601. The operating rod 65 has an axial sliding degree of freedom and a rotating degree of freedom, which can be achieved by forming a slidable and rotatable connection between the operating rod 65 and the perforations on the sidewall of the hopper 60. The rotation of the operating rod 65 drives the guide plate 66 and the movable shutter 64 to swing, so that the guide plate 66 or the movable shutter 64 can selectively guide the bran discharged from the bran discharge channel 53 into the bran chamber 602 or the clean grain chamber 601. The purpose of this is to separately guide the bran produced by different grinding times into the bran chamber 602 and the clean grain chamber 601 when the bran needs to be returned to the flour mill 40 for grinding multiple times. For example, the bran discharged after the first grinding of the clean grain falls into the bran chamber 602. Then, the guide plate 66 and the movable shutter 64 are swung to an inclined state toward the clean grain chamber 601, so that the second-grinding bran falls into the clean grain chamber 601. After the bran in the bran chamber 602 is completely ground for the second time, the operating rod 65 is rotated again to make the guide plate 66 and the movable shutter 64 incline toward the bran chamber 602, thereby guiding the third-grinding bran to the bran chamber 602. In this way, the bran produced by different grinding times can be collected and distinguished, which is beneficial to improving the quality of the final flour.

[0030] In some possible implementation manners, please refer to Figures 1 to 3 The flour sifting machine 50 is provided with a flour discharge shaker 54, the flour discharge shaker 54 is connected with the flour discharge channel 52, and is connected with the bag receiving device 521 through the flour discharge air lock 522. The flour mill 40 is provided with a feeding air lock 42, and the feeding air lock 42 is connected with a feeding shaker 43 above. The feeding shaker 43 is connected with the material lifting pipe 41.

[0031] The shaker is also called a cyclone separator, which is a device for separating solid particles in gas flow by centrifugal force. The air lock is also called a star-shaped discharger, which is suitable for powdery materials and granular materials. The flour discharge shaker 54 can make the flour in the flour discharge channel 52 fall into the flour discharge air lock 522, and then enter the packaging bag. The clean grain or bran at the bottom of the hopper 60 can enter the flour mill 40 through the material lifting pipe 41 under the power of the feeding shaker 43. Therefore, the material transfer between the hopper 60 and the flour mill 40 is realized by using gas power, which can improve the compactness of the structure.

[0032] In some embodiments, as Figure 2As shown, the first dust removal fan 55 is arranged on the powder screening machine 50, and is connected with the powder outlet chute 54 through a first air pipe 551, and is connected with the feeding chute 43 through a second air pipe 552. Dust is generated during the powder outlet and the feeding of the flour mill 40. The first dust removal fan 55 is connected with the powder outlet chute 54 and the feeding chute 43 simultaneously, so that the production dust can be inhibited, and the air quality in the workshop is purified.

[0033] Specifically, referring to Figs. 1 and 2, Figure 1 and Figure 2 the suction side of the first dust removal fan 55 is provided with an air bellow 553, and the first air pipe 551 and the second air pipe 552 are communicated with the air bellow 553; and the exhaust side of the dust removal fan is connected with a first dust collector 555 through a third air pipe 554. The dust at the powder outlet and the feeding is controlled simultaneously by the first dust removal fan 55 through the air bellow 553 and the two air pipes, and the dust is filtered and purified by the first dust collector 555, so that the production environment and the air are clean.

[0034] It should be noted that, referring to Figs. 1 and 2, Figure 1 the second dust removal fan 21 is arranged on the grain cleaning machine 20, and is connected with a second dust collector 23 through a fourth air pipe 22. Because a large amount of dust particles and chaff are often contained in the mixed raw wheat, the second dust collector 23 is arranged on the grain cleaning machine 20, and the dirty air generated during the screening of the mixed raw wheat is sucked and exhausted to the second dust collector 23 by the second dust removal fan 21, so that the purification effect is improved, the air pollution outside is avoided, and the cleanliness of the cleaned wheat is improved, so that the flour quality is ensured.

[0035] It should be understood that, referring to Figs. 1 and 2, Figure 1 and Figure 2 the above-mentioned bucket feeder 10 is connected with the grain cleaning machine 20 through a first vertical auger 70, the grain cleaning machine 20 is connected with the cleaned wheat storage machine 30 through a second vertical auger 80, and the cleaned wheat storage machine 30 is connected with the hopper 60 through a third vertical auger 90. The vertical auger can be understood as a vertical spiral auger for conveying materials from bottom to top. The bottom of the bucket feeder 10 is discharged and conveyed upward to the top of the grain cleaning machine 20 through the first vertical auger 70. The cleaned wheat obtained by the screening of the mixed raw wheat in the grain cleaning machine 20 falls to the bottom and enters the second vertical auger 80, and is then conveyed upward by the second vertical auger 80 and discharged into the cleaned wheat storage machine 30 from the top of the cleaned wheat storage machine 30. The cleaned wheat in the cleaned wheat storage machine 30 can fall to the third vertical auger 90 by gravity, so that the cleaned wheat is conveyed to the hopper 60 by the third vertical auger 90. In this way, the feeding and discharging modes of each process are all downward discharging and upward feeding, so that the compactness of the overall structure layout is improved, and the installation space is reduced.

[0036] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A surface grinding unit, characterized by, The device comprises a hopper feeder, a grain cleaning machine, a clean grain storage machine, a flour mill and a powder lifting and screening machine connected in sequence, wherein the hopper feeder is used to feed the grain cleaning machine with raw grain mixed with impurities, the grain cleaning machine is used to remove the impurities from the raw grain and send the clean grain to the clean grain storage machine, the powder lifting and screening machine is provided with a powder lifting channel, a powder outlet channel and a bran outlet channel, and a hopper is arranged below the powder lifting and screening machine and used to receive bran discharged from the bran outlet channel, wherein the clean grain storage machine is used to send clean grain to the hopper, the flour mill is connected to the hopper through a lifting pipe, and the outlet of the flour mill is connected to the powder lifting channel, and a bag clamping device is arranged on the powder outlet channel.

2. The surfacer set of claim 1, wherein, A partition is arranged in the hopper, which divides the interior space of the hopper into a clean grain chamber and a bran chamber, and the chamber bottoms of the clean grain chamber and the bran chamber are provided with discharge augers, both of which are connected to the lifting pipe, wherein the clean grain storage machine is connected to the clean grain chamber, and the bran outlet channel is connected to the bran chamber.

3. The surfacer set of claim 2, wherein, A bran discharge pipe is fixedly connected to the sidewall of the hopper and penetrates into the bran chamber, and the bran discharge pipe corresponds to the outlet position of the bran outlet channel, and a movable shutter is arranged in the bran chamber, which has a first state of shielding the bran discharge pipe and a second state of avoiding the bran discharge pipe.

4. The surfacer set of claim 3, wherein, An operating rod is slidably arranged above the partition of the hopper, and a guide plate and the movable shutter are connected to the operating rod, wherein the first state is formed when the operating rod drives the movable shutter to move below the bran outlet channel, and the second state is formed when the operating rod drives the guide plate to move below the bran outlet channel.

5. The surfacer set of claim 4, wherein, Both ends of the operating rod are rotatably connected to the two opposite sidewalls of the hopper, which are used to drive the guide plate and the movable shutter to swing and form an inclined state of guiding material to one of the clean grain chamber and the bran chamber.

6. The surfacer set of claim 1, wherein, A powder outlet shaker is arranged on the powder lifting and screening machine, which is connected to the powder outlet channel and connected to the bag clamping device through a powder outlet air lock, and a feed inlet air lock is arranged on the flour mill, and a feed inlet shaker is connected above the feed inlet air lock and connected to the lifting pipe.

7. The facing mill set of claim 6, wherein, A first dust removal fan is arranged on the powder lifting and screening machine, which is connected to the powder outlet shaker through a first air pipe and connected to the feed inlet shaker through a second air pipe.

8. The surfacer set of claim 7, wherein, An air box is arranged on the suction side of the first dust removal fan, and the first air pipe and the second air pipe are communicated with the air box, and a first dust remover is connected to the exhaust side of the dust removal fan through a third air pipe.

9. The surfacer set of claim 1, wherein, A second dust removal fan is arranged on the grain cleaning machine, which is connected to a second dust remover through a fourth air pipe.

10. A facing mill set as claimed in any one of claims 1 to 9, characterized in that The hopper feeder and the grain cleaning machine are connected through a first vertical auger, the grain cleaning machine and the clean grain storage machine are connected through a second vertical auger, and the clean grain storage machine and the hopper are connected through a third vertical auger.

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