A flour sieving process

Abstract

The present application relates to flour processing technical field, especially a kind of flour screening process, including the flour that needs screening is continuously scattered to mixed flour channel, while the air blowing assembly is continuously blown to part of sieve hole by falling flour;Make the airflow of part of sieve hole from fine powder channel into mixed flour channel, define the part of sieve hole as first sieve hole group;Make the airflow of part of sieve hole from mixed flour channel into fine powder channel, define the part of sieve hole as second sieve hole group;Part of the first sieve hole group and part of the second sieve hole group are mutually transformed when working.The airflow in this process passes through sieve hole from mixed flour channel into fine powder channel, and from fine powder channel into mixed flour channel, so that the sieve hole is respectively flowed through by airflow in two directions, which greatly reduces the probability of sieve hole being blocked, and the device can set different sizes of anti-blocking screening device according to the size of site and the investment of fund cost, the larger the size, the higher the screening efficiency.

Description

Technical Field

[0001] This invention relates to the field of flour processing technology, and in particular to a flour screening process. Background Technology

[0002] In flour processing, a very important step is flour sieving. Sieving the flour allows for fine classification of its particles. However, because flour particles are relatively small, the mesh of the sieve is easily clogged during sieving, which will affect the sieving efficiency. Summary of the Invention

[0003] The purpose of this invention is to solve the problem that the mesh of the sieve is easily clogged in the prior art, and the clogging of the sieve mesh will affect the sieving efficiency, and to propose a flour sieving process.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A flour screening process is provided, which is based on an anti-clogging screening device. The anti-clogging screening device includes an air blowing component, a cylindrical screen and a cylindrical body arranged coaxially from the inside to the outside. The inner side of the cylindrical screen has a fine powder channel, and the cylindrical screen and the cylindrical body have a miscellaneous flour channel. The cylindrical screen has sieve holes that connect the fine powder channel and the miscellaneous flour channel.

[0006] The screening process includes the following steps:

[0007] The flour to be sifted is continuously sprinkled into the mixed flour channel, and air is continuously blown into some of the sieve holes through the air blowing component as the flour is sprinkled.

[0008] The airflow through a portion of the sieve holes is directed from the fine powder channel into the mixed flour channel, and this portion of the sieve holes is defined as the first sieve hole group; the airflow through a portion of the sieve holes is directed from the mixed flour channel into the fine powder channel, and this portion of the sieve holes is defined as the second sieve hole group; during operation, a portion of the first sieve hole group and a portion of the second sieve hole group alternate with each other.

[0009] The air blowing assembly includes a rotating mechanism and an air blowing shell that is vertically arranged and radially positioned along the cylindrical screen. The rotating mechanism can drive the air blowing shell to rotate along the axis of the cylindrical screen. The air blowing shell has an air chamber. The left and right sides of the air blowing shell are tangent to the cylindrical screen. One side of the air blowing shell is provided with an air outlet that connects a portion of the fine powder channel to the air chamber. The air blowing shell is connected to the air blowing device.

[0010] The anti-clogging screening device includes a lower cover shell, which has a fine powder storage chamber and a coarse powder storage chamber. Both the fine powder storage chamber and the coarse powder storage chamber are provided with pressure relief holes and discharge ports. The fine powder storage chamber is connected to the fine powder channel, and the coarse powder storage chamber is connected to the mixed flour channel.

[0011] A set of screening components is defined as one cylindrical screen and one cylindrical body. There are at least two sets of screening components. Multiple cylindrical screens and multiple cylindrical bodies are coaxially and alternately arranged. The air blowing shell is fixed to the lower cover shell. The lower cover shell is rotatably connected to the cylindrical body. The lower cover shell is equipped with a transmission part. The rotating mechanism includes a rotary motor. The rotary motor can drive the lower cover shell to rotate through the transmission part. Multiple air blowing shells are connected through a connecting pipe. The middle air blowing shell is connected to an air pipe. The air pipe is connected to an air blowing device.

[0012] The anti-clogging screening device includes an upper cover shell that covers the top of the cylindrical body. The upper cover shell has a storage cavity and a feeding port. The bottom of the upper cover shell has a discharge hole that connects to the mixed flour channel. The storage cavity is equipped with a flour stirring component.

[0013] The anti-clogging screening device includes an upper cover shell that covers the top of the cylindrical body. The upper cover shell has a storage cavity and a feeding port. The bottom of the upper cover shell has a discharge hole that connects to the mixed flour channel. A scraper is provided in the storage cavity near the bottom wall. The scraper is arranged radially along the upper cover shell and is drivenly connected to the air blowing shell.

[0014] The flour screening process proposed in this invention has the following advantages: In this process, the airflow passes through the sieve holes from the mixed flour channel into the fine flour channel, and at the same time, it passes through the sieve holes from the fine flour channel into the mixed flour channel. In this way, the sieve holes are passed through by airflow from two directions, which greatly reduces the probability of the sieve holes being blocked. This device can be equipped with anti-clogging screening devices of different sizes according to the amount of space and capital investment. The larger the size, the higher the screening efficiency. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the dissected visual structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0018] Figure 4 This is a partial exploded structural diagram of the present invention.

[0019] In the diagram: 1. Feeding port; 2. Scraper; 3. Storage chamber; 4. Discharge hole; 5. Upper cover shell; 6. Fine powder channel; 7. Mixed flour channel; 8. Cylindrical screen; 9. Screen hole; 10. Cylindrical body; 11. Lower cover shell; 12. Fine powder storage chamber; 13. Coarse powder storage chamber; 14. Transmission unit; 15. Air blowing shell; 16. Air chamber; 17. Air outlet; 18. Connecting pipe; 19. Air pipe. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Reference Figure 1-4 A flour screening process is based on an anti-clogging screening device. The anti-clogging screening device includes an air blowing component, a cylindrical screen 8 and a cylindrical body 10 arranged coaxially from the inside to the outside. The inner side of the cylindrical screen 8 has a fine powder channel 6, and there is a miscellaneous flour channel 7 between the cylindrical screen 8 and the cylindrical body 10. The cylindrical screen 8 has a screen hole 9 that connects the fine powder channel 6 and the miscellaneous flour channel 7.

[0022] The screening process includes the following steps:

[0023] When using an anti-clogging sieving device to sieve flour, the flour to be sieved is continuously sprinkled into the mixed flour channel 7. While the flour is being sprinkled, air is continuously blown into a portion of the sieve holes 9 through the air blowing component. This causes the airflow from the mixed flour channel 6 to enter the mixed flour channel 7, and this portion of the sieve holes 9 is defined as the first sieve hole group. The airflow from the mixed flour channel 7 to the mixed flour channel 6 is also caused to enter the mixed flour channel 6, and this portion of the sieve holes 9 is defined as the second sieve hole group. During operation, the portion of the first sieve hole group and the portion of the second sieve hole group alternate with each other.

[0024] In this process, during sieving, the flour is dispersed in the mixed flour channel 7. As the flour falls within the mixed flour channel 7, some airflow passes through the sieve holes 9 from the fine flour channel 6 into the mixed flour channel 7. The airflow entering the mixed flour channel 7 passes through some of the sieve holes 9 from the mixed flour channel 7 into the fine flour channel 6. Therefore, the smaller diameter flour is carried by the airflow from the mixed flour channel 7 through the sieve holes 9 into the fine flour channel 6, while the larger diameter flour remains in the mixed flour channel 7. This achieves the separation of coarse and fine flour. Because some of the first sieve hole groups and some of the second sieve hole groups alternate during operation, the airflow sometimes passes through the sieve holes 9 from the mixed flour channel 7 into the fine flour channel 6, and sometimes passes through the sieve holes 9 from the fine flour channel 6 into the mixed flour channel 7. In this way, the sieve holes 9 are passed through by airflow from both directions, greatly reducing the probability of sieve clogging. This device can be equipped with anti-clogging sieving devices of different sizes according to the available space and capital investment. The larger the size, the higher the sieving efficiency.

[0025] refer to Figure 2 , Figure 3 , Figure 4The air blowing assembly includes a rotating mechanism and an air blowing housing 15 arranged vertically and radially along the cylindrical screen 8. The rotating mechanism can drive the air blowing housing 15 to rotate along the axis of the cylindrical screen 8. The air blowing housing 15 has an air chamber 16. The left and right sides of the air blowing housing 15 are tangent to the cylindrical screen 8. One side of the air blowing housing 15 is provided with an air outlet 17 that connects a portion of the fine powder channel 6 to the air chamber 16. The air blowing housing 15 is connected to air blowing equipment, such as an air pump or a blower. (See reference) Figure 1 The air blowing shell 15 divides the fine powder channel 6 into two halves. One half of the fine powder channel 6 is directly connected to the air chamber 16 through the air outlet 17, and the other half of the fine powder channel 6 is connected to the air chamber 16 through the mixed flour channel 7 and the sieve holes 9. The air blowing shell 15 is rotated along the axis of the cylindrical sieve 8 by a rotating mechanism. The airflow of the sieve holes 9 facing the air outlet 17 is set to enter the mixed flour channel 7 through the fine powder channel 6, and the airflow of the sieve holes 9 facing away from the air outlet 17 is set to enter the fine powder channel 6 through the mixed flour channel 7. When the air blowing shell 15 rotates, some of the sieve holes 9 are always switching between the air intake state and the air exhaust state, which reduces the probability of the sieve holes 9 being blocked.

[0026] The anti-clogging screening device includes a lower cover shell 11, which has a fine powder storage chamber 12 and a coarse powder storage chamber 13. Both the fine powder storage chamber 12 and the coarse powder storage chamber 13 are equipped with pressure relief holes and discharge ports. Preferably, the discharge port is sealed with a breathable but dust-proof cloth bag to facilitate the overall downward flow of air. The fine powder storage chamber 12 is connected to the fine powder channel 6, and the coarse powder storage chamber 13 is connected to the mixed flour channel 7. The screened flour enters the fine powder storage chamber 12, and the larger diameter flour that remains after screening is retained in the mixed flour channel 7. A flour collection bag can be installed at the discharge port.

[0027] refer to Figures 1-4 A set of screening components is defined as a cylindrical screen 8 and a cylindrical body 10. There are at least two sets of screening components. Multiple cylindrical screens 8 and multiple cylindrical bodies 10 are coaxially and alternately arranged. The air blowing shell 15 is fixed to the lower cover shell 11. The lower cover shell 11 is rotatably connected to the cylindrical body 10. The lower cover shell 11 is equipped with a transmission part 14. The rotating mechanism includes a rotary motor. The rotary motor can drive the lower cover shell 11 to rotate through the transmission part 14. Multiple air blowing shells 15 are connected through a connecting pipe 18. The middle air blowing shell 15 is connected to an air pipe 19. The air pipe 19 is connected to an air blowing device. Multiple sets of screening components are set to improve screening efficiency.

[0028] The anti-clogging screening device includes an upper cover shell 5 that seals the top of the cylindrical body 10. The upper cover shell 5 has a storage chamber 3 and a feeding port 1. The bottom of the upper cover shell 5 has a discharge hole 4 that connects to the mixed flour channel 7. A flour agitation component is installed in the storage chamber 3. The flour agitation component agitates the flour, causing the flour to fall into the mixed flour channel 7 through the discharge hole 4. (Reference) Figure 3During operation, the flour in the storage chamber 3 is kept at a certain depth at all times to prevent airflow from flowing upward through the discharge hole 4.

[0029] As another embodiment, the anti-clogging screening device includes an upper cover shell 5 that covers the top of the cylindrical body 10. The upper cover shell 5 has a storage cavity 3 and a feeding port 1. The bottom of the upper cover shell 5 has a discharge hole 4 that connects to the mixed flour channel 7. A scraper 2 is provided in the storage cavity 3 near the bottom wall. The scraper 2 is arranged radially along the upper cover shell 5 and is connected to the air blowing shell 15 in a transmission manner.

[0030] During operation, the upper cover 5 is fixed to the cylindrical body 10 and the cylindrical screen 8, and the upper cover 5, the cylindrical body 10, and the cylindrical screen 8 are fixed relative to the ground. The motor drives the entire lower cover 11 to rotate, which in turn drives multiple air blowing shells 15 to rotate. The air blowing shells 15 drive the scraper 2 to rotate, and the scraper stirs the flour, causing the flour to fall through the discharge hole 4 into the mixed flour channel 7. At the same time, the air pump blows air into the air blowing shell 15 through the air pipe 19 and the connecting pipe 18. The air blowing shell 15 rotates and blows air, causing the airflow to enter the mixed flour channel 7 through half of the fine flour channel 6 and the sieve hole 9. The airflow carries small flour particles through the mixed flour channel 7 and through the other part of the sieve hole 9 into the other half of the fine flour channel 6. The fine flour is collected in the fine flour storage chamber 12, and the coarse flour is collected in the coarse flour storage chamber 13.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes to the technical solution and inventive concept of the present invention within the scope of the technology disclosed in the present invention should be covered within the scope of protection of the present invention.

Claims

1. A flour screening process, characterized in that, The screening process is based on an anti-clogging screening device, which includes an air blowing assembly, a cylindrical screen (8) arranged coaxially from the inside to the outside, and a cylindrical body (10). The inner side of the cylindrical screen (8) has a fine powder channel (6), and there is a mixed flour channel (7) between the cylindrical screen (8) and the cylindrical body (10). The cylindrical screen (8) has a sieve hole (9) that connects the fine powder channel (6) and the mixed flour channel (7). The screening process includes the following steps: The flour to be sifted is continuously sprinkled into the mixed flour channel (7), and air is continuously blown into some of the sieve holes (9) through the air blowing component while the flour is being sprinkled; The airflow through a portion of the sieve holes (9) is allowed to enter the mixed flour channel (7) from the fine flour channel (6), and this portion of the sieve holes (9) is defined as the first sieve hole group; the airflow through a portion of the sieve holes (9) is allowed to enter the fine flour channel (6) from the mixed flour channel (7), and this portion of the sieve holes (9) is defined as the second sieve hole group; during operation, a portion of the first sieve hole group and a portion of the second sieve hole group are interchanged; The air blowing assembly includes a rotating mechanism and an air blowing housing (15) that is vertically arranged and radially placed along the cylindrical screen (8). The rotating mechanism can drive the air blowing housing (15) to rotate along the axis of the cylindrical screen (8). The air blowing housing (15) has an air chamber (16). The left and right sides of the air blowing housing (15) are tangent to the cylindrical screen (8). One side of the air blowing housing (15) is provided with an air outlet (17) that connects a fine powder channel (6) and the air chamber (16). The air blowing housing (15) is connected to the air blowing device.

2. The flour screening process according to claim 1, characterized in that, The anti-clogging screening device includes a lower cover shell (11), which has a fine powder storage chamber (12) and a coarse powder storage chamber (13). Both the fine powder storage chamber (12) and the coarse powder storage chamber (13) are provided with pressure relief holes and discharge ports. The fine powder storage chamber (12) is connected to the fine powder channel (6), and the coarse powder storage chamber (13) is connected to the mixed flour channel (7).

3. The flour screening process according to claim 2, characterized in that, Define a cylindrical screen (8) and a cylindrical body (10) as a set of screening components. There are at least two sets of screening components. Multiple cylindrical screens (8) and multiple cylindrical bodies (10) are coaxially and alternately arranged. The air blowing shell (15) is fixed to the lower cover shell (11). The lower cover shell (11) is rotatably connected to the cylindrical body (10). The lower cover shell (11) is equipped with a transmission part (14). The rotating mechanism includes a rotary motor. The rotary motor can drive the lower cover shell (11) to rotate through the transmission part (14). Multiple air blowing shells (15) are connected through a connecting pipe (18). The middle air blowing shell (15) is connected to an air pipe (19). The air pipe (19) is connected to an air blowing device.

4. The flour screening process according to claim 1, characterized in that, The anti-clogging screening device includes an upper cover shell (5) that covers the top of the cylindrical body (10). The upper cover shell (5) has a storage chamber (3) and a feeding port (1). The bottom of the upper cover shell (5) has a feeding hole (4) that connects to the mixed flour channel (7). The storage chamber (3) is equipped with a flour stirring component.

5. A flour screening process according to any one of claims 2-3, characterized in that, The anti-clogging screening device includes an upper cover shell (5) that covers the top of the cylindrical body (10). The upper cover shell (5) has a storage cavity (3) and a feeding port (1). The bottom of the upper cover shell (5) has a discharge hole (4) that connects to the mixed flour channel (7). A scraper (2) is provided in the storage cavity (3) near the bottom wall. The scraper (2) is arranged radially along the upper cover shell (5). The scraper (2) is connected to the air blowing shell (15) in a transmission connection.

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