Wheat peeling and grinding equipment and method thereof

Abstract

The invention discloses wheat peeling and grinding equipment which comprises a shell, a feeding hopper is arranged at the top of the shell, a discharging pipe is arranged at the bottom of the shell, and a peeling area, a peel and kernel separation area and a grinding area are sequentially arranged in the shell from top to bottom; the peeling mechanism is arranged in the peeling area; the peel and kernel separating mechanism is arranged in the peel and kernel separating area; and the grinding mechanism is arranged in the grinding area. The working procedures of peeling, husk-kernel separation and grinding of wheat are performed step by step, so that husks are prevented from being mixed, and the purity of discharged flour is ensured; a plurality of grinding strips are arranged on the grinding roller in the circumferential direction, and gaps between the grinding strips and the inner wall of the shell are gradually reduced from top to bottom, so that the grinding gradient of the wheat kernels is finer, blockage can be effectively avoided, subsequent flour discharging is promoted, and the flour yield is increased; a heating plate is arranged between every two adjacent grinding strips, in the grinding process, the wheat flour is heated through the heating plates, water in the wheat flour is evaporated, the wheat flour is prevented from being bonded into blocks, and the smoothness of subsequent flour discharging is further promoted.

Description

Technical Field

[0001] The invention relates to the technical field of wheat processing, in particular to wheat peeling and grinding equipment and a method thereof. Background Art

[0002] After wheat is harvested, it needs to be peeled and ground into flour, and then the flour is processed into other foods. When the existing equipment grinds wheat, it grinds the wheat through the grinding wheel. Due to the large squeezing force between the grinding wheel and the wheat, and the release of the wheat's own moisture, the viscosity of the wheat flour increases after being ground into powder, and it is easy to stick to the grinding wheel. The sticky flour not only affects the normal discharge of flour and reduces the flour extraction rate, but also causes the subsequent wheat kernels to be unable to contact the ridges on the surface of the grinding wheel normally, so that the wheat kernels cannot be completely ground into qualified powder, resulting in poor flour extraction quality. Summary of the invention

[0003] The purpose of the present invention is to provide a wheat peeling and grinding device and method thereof, so as to solve the problem that when the existing equipment is used to grind wheat, the wheat flour is easily adhered to the grinding disc, which affects the normal discharge of the flour and reduces the flour extraction rate. At the same time, it causes the subsequent wheat kernels to be unable to be completely ground into qualified powder, resulting in poor flour extraction quality.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A wheat peeling and flour grinding device, comprising:

[0006] The shell has a feed hopper on the top and a discharge pipe on the bottom. The shell has a peeling area, a hull-kernel separation area and a grinding area arranged in sequence from top to bottom.

[0007] A peeling mechanism, which is arranged in the peeling area and is used for peeling the wheat;

[0008] A husk-kernel separation mechanism is arranged in the husk-kernel separation area and is used to separate the husk from the kernel;

[0009] The grinding mechanism is arranged in the grinding area and is used for grinding the wheat kernels into flour.

[0010] As a further solution of the present invention: a driving motor is fixed in the feed hopper via a mounting plate, a rotating shaft is connected to the output end of the driving motor, and the peeling mechanism, the hull-kernel separation mechanism and the grinding mechanism are all driven by the rotating shaft.

[0011] As a further solution of the present invention: the peeling mechanism includes a peeling roller, the peeling roller is fixedly sleeved on the rotating shaft, a peeling plate adapted to the peeling roller is arranged in the peeling area, and the peeling plate is fixed on the inner wall of the shell.

[0012] As a further solution of the present invention: the skin-kernel separation mechanism includes fan blades, which are arranged in multiple groups and are evenly distributed on the rotating shaft in the circumferential direction. The skin-kernel separation area is also provided with an inner isolation net covering the periphery of the fan blades, and the inner isolation net is fixed to the inner wall of the shell through a connecting rod.

[0013] As a further solution of the present invention: the grinding mechanism comprises a grinding roller, the grinding roller is fixedly sleeved on the rotating shaft, and a plurality of grinding strips are circumferentially arranged on the grinding roller.

[0014] As a further solution of the present invention: in the vertical direction, the gap between the grinding bar and the inner wall of the shell gradually decreases from top to bottom.

[0015] As a further solution of the present invention: a heating plate is arranged between adjacent grinding bars.

[0016] As a further solution of the present invention: a spiral conveying piece is provided at the lower end of the rotating shaft, the spiral conveying piece is located in the discharge pipe, and a spiral scraper is provided on the spiral conveying piece to fit the inner wall of the discharge pipe.

[0017] As a further solution of the present invention: a plurality of groups of vibration components are arranged in the circumferential direction of the shell, and the vibration components include:

[0018] a cavity formed in the shell;

[0019] A plurality of elastic telescopic rods are provided and are equidistantly arranged in the cavity; and

[0020] A vibration plate is fixedly connected to the extended ends of each elastic telescopic rod.

[0021] As a further solution of the present invention: the husk-kernel separation area is also provided with an outer husk collection component, and the outer husk collection component includes a collection box, which is arranged on the outer wall of the shell, an outer isolation net is installed on the collection box, and a through opening is opened circumferentially on the shell.

[0022] The invention also discloses a wheat peeling and flour grinding method, comprising the following steps:

[0023] 1) The wheat is fed into the peeling area through a feed hopper, and the wheat is peeled by a peeling roller to obtain the outer skin and wheat kernel;

[0024] 2) The husk and the wheat kernel fall onto the inner isolation net in the husk-kernel separation area, and the husk is blown into a collection box by the fan blades to separate the husk from the wheat kernel;

[0025] 3) The wheat kernels fall into the grinding area and are ground into powder by the grinding roller. At the same time, the heating plate heats the flour and the vibration plate vibrates and strikes the grinding roller to promote the discharge of wheat flour.

[0026] 4) The spiral conveyor drives the wheat flour to be discharged from the discharge pipe, and the scraper scrapes off the wheat flour adhering to the inner wall of the discharge pipe.

[0027] Beneficial effects of the present invention:

[0028] 1. The shell is equipped with a peeling area, a husk-kernel separation area and a grinding area, and the peeling, husk-kernel separation and grinding processes of wheat are carried out step by step to avoid mixing of husks and ensure the purity of flour;

[0029] 2. There are several grinding bars on the circumference of the grinding roller, and the gap between the grinding bars and the inner wall of the shell gradually decreases from top to bottom. The wheat kernel grinding gradient is finer, which can effectively avoid blockage, promote subsequent powder discharge, and improve the powder extraction rate;

[0030] 3. A heating plate is provided between adjacent grinding bars. During the grinding process, the wheat flour is heated by the heating plate to evaporate the moisture in the flour, thus preventing the wheat flour from sticking together and further promoting the smoothness of subsequent flour discharge;

[0031] 4. A spiral conveyor sheet is arranged at the lower end of the rotating shaft, and a spiral scraper is arranged on the spiral conveyor sheet to fit the inner wall of the discharge pipe. The spiral conveyor sheet is used to actively discharge the material to avoid the wheat flour from being blocked in the discharge pipe. At the same time, the scraper is used to scrape off the wheat flour adhering to the inner wall of the discharge pipe to avoid the wheat flour from being retained in the discharge pipe, thereby further improving the flour extraction rate.

[0032] 5. A vibration component is set in the grinding area, and the grinding strip is used to drive the vibration plate to vibrate frequently, thereby striking the grinding roller. On the one hand, it can discharge the adhering wheat flour smoothly and improve the flour yield. On the other hand, it can keep the grinding roller clean at all times to avoid too much wheat flour adhering to it and affecting the normal grinding of the subsequent wheat kernels. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] Figure 1 A three-dimensional view of the present invention;

[0035] Figure 2 A half-cut three-dimensional view of the present invention;

[0036] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0037] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0038] Figure 5 It is a structural schematic diagram of the rotating shaft in the present invention.

[0039] In the figure: 1. shell; 2. feed hopper; 3. support leg; 4. discharge pipe; 5. drive motor; 6. mounting plate; 7. rotating shaft; 8. peeling plate; 9. peeling roller; 10. inner isolation net; 11. fan blade; 12. collecting box; 13. through port; 14. outer isolation net; 15. grinding roller; 16. grinding strip; 17. heating plate; 18. spiral conveyor sheet; 19. scraper; 20. cavity; 21. elastic telescopic rod; 22. vibration plate. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1 and Figure 2 As shown, the present invention discloses a wheat peeling and grinding device, which may include a shell 1, wherein a feed hopper 2 is arranged on the top of the shell 1, a discharge pipe 4 is arranged on the bottom of the shell 1, and the shell 1 as a whole is supported and fixed by legs 3; a peeling area, a husk-kernel separation area and a grinding area are arranged in sequence from top to bottom in the shell 1; a peeling mechanism, a husk-kernel separation mechanism and a grinding mechanism are also included, wherein the peeling mechanism is arranged in the peeling area for peeling wheat; the husk-kernel separation mechanism is arranged in the husk-kernel separation area for separating the outer husk from the outer husk; Separated from wheat kernels; a grinding mechanism is arranged in the grinding area, for grinding the wheat kernels into powder; specifically, wheat is put into the shell 1 from the feed hopper 2, and when the wheat passes through the peeling area, the wheat is peeled by the peeling mechanism, so that the outer skin is separated from the wheat kernels; then the wheat kernels and the outer skin are mixed together and fall into the skin-kernel separation area, and the wheat kernels are separated from the outer skin by the skin-kernel separation mechanism, the outer skin is intercepted, and the wheat kernels continue to descend into the grinding area; the wheat kernels are then ground into powder by the grinding mechanism and discharged from the discharge pipe 4.

[0042] In one embodiment, see Figure 2 and Figure 5 As shown, a driving motor 5 is fixed in the feed hopper 2 through a mounting plate 6, and a rotating shaft 7 is connected to the output end of the driving motor 5. The peeling mechanism, the hull-kernel separation mechanism and the grinding mechanism are all driven by the rotating shaft 7;

[0043] Specifically, the peeling mechanism includes a peeling roller 9, which is fixedly sleeved on the rotating shaft 7, and a peeling plate 8 adapted to the peeling roller 9 is arranged in the peeling area, and the peeling plate 8 is fixed on the inner wall of the shell 1; when the wheat falls into the peeling area, it will pass through the gap between the peeling plate 8 and the peeling roller 9, and the rotating shaft 7 drives the peeling roller 9 to rotate relative to the peeling plate 8, so as to roll the wheat passing through the gap, so that the outer skin is peeled off the wheat kernel;

[0044] Furthermore, the husk-kernel separation mechanism includes a plurality of blades 11, and the blades 11 are arranged in a plurality of groups and are evenly distributed on the rotating shaft 7 in the circumferential direction. The husk-kernel separation area is also provided with an inner isolation net 10 which is covered on the outer periphery of the blades 11, and the inner isolation net 10 is fixed to the inner wall of the shell 1 through a connecting rod; the wheat kernels peeled by the peeling mechanism and the outer husk fall together onto the inner isolation net 10 in the husk-kernel separation area, and at the same time, the blades 11 rotate to blow air to the inner isolation net 10, thereby blowing up the outer husk on the inner isolation net 10, while the wheat kernels cannot be blown up due to their large weight, and slide down along the inner isolation net 10 to the grinding area, thereby realizing the separation of the outer husk from the wheat kernels;

[0045] Furthermore, the grinding mechanism includes a grinding roller 15, which is fixedly sleeved on the rotating shaft 7, and a plurality of grinding bars 16 are circumferentially arranged on the grinding roller 15, wherein in the vertical direction, the gap between the grinding bars 16 and the inner wall of the shell 1 gradually decreases from top to bottom; when the wheat kernels fall into the grinding area, the grinding bars 16 on the grinding roller 15 grind the wheat kernels, and since the gap between the grinding bars 16 and the inner wall of the shell 1 gradually decreases from top to bottom, the wheat kernels will be gradually ground during the falling process, and the grinding gradient will be finer, which can effectively avoid blockage, promote subsequent powder discharge, and improve the powder extraction rate;

[0046] In addition, a heating plate 17 is provided between adjacent grinding bars 16; during the grinding process, the wheat flour is heated by the heating plate 17 to evaporate the moisture therein, thereby preventing the wheat flour from sticking together, further promoting the smoothness of subsequent flour discharge, and improving the flour extraction rate.

[0047] In one embodiment, see Figure 5 As shown, a spiral conveying piece 18 is provided at the lower end of the rotating shaft 7, and the spiral conveying piece 18 is located in the discharge pipe 4. A spiral scraper 19 is provided on the spiral conveying piece 18 and is in contact with the inner wall of the discharge pipe 4; the wheat flour fully ground by the grinding mechanism falls into the discharge pipe 4 and is spirally conveyed downward along the spiral conveying piece 18. The spiral conveying piece 18 is used to actively discharge the flour to avoid the wheat flour from being blocked in the discharge pipe 4. At the same time, the scraper 19 is used to scrape off the wheat flour adhered to the inner wall of the discharge pipe 4 to avoid the wheat flour from being retained in the discharge pipe 4, thereby further improving the flour extraction rate.

[0048] In another embodiment, during the grinding process, the wheat kernels are subjected to the extrusion force between the grinding bars 16 and the inner wall of the housing 1, so that the ground wheat flour is easily squeezed and adhered to the grinding roller 15. For this purpose, please refer to Figure 2 and Figure 4 As shown, the shell 1 is provided with multiple groups of vibration components in the circumferential direction, and the vibration components include a cavity 20, an elastic telescopic rod 21 and a vibration plate 22, wherein the cavity 20 is opened in the shell 1, and multiple groups of elastic telescopic rods 21 are provided and equidistantly arranged in the cavity 20, and the vibration plate 22 is fixedly connected to the extended ends of each elastic telescopic rod 21; in a natural state, the vibration plate 22 will extend out of the cavity 20 under the elastic force of the elastic telescopic rod 21, and in the grinding process, the grinding roller 15 drives the grinding strip 16 to rotate circumferentially, When the grinding bar 16 contacts the vibration plate 22, the vibration plate 22 will be squeezed into the cavity 20. When the grinding bar 16 is separated from the vibration plate 22, the vibration plate 22 will pop out again under the action of the elastic telescopic rod 21 and knock the flour milling roller 15, thereby knocking off the wheat flour adhering to the flour milling roller 15. On the one hand, the adhering wheat flour can be discharged smoothly to improve the flour extraction rate. On the other hand, the flour milling roller 15 can be kept clean at all times to avoid too much wheat flour adhering to it and affecting the normal grinding of the subsequent wheat kernels.

[0049] For further information, see Figure 1 and Figure 3 As shown, the husk and kernel separation area is also provided with an outer husk collecting component, and the outer husk collecting component includes a collecting box 12, and the collecting box 12 is arranged on the outer wall of the shell 1, and an outer isolation net 14 is installed on the collecting box 12, and a through opening 13 is opened on the upper circumference of the shell 1; the fan blades 11 blow up the outer husk on the inner isolation net 10, and the blown outer husk enters the collecting box 12 through the through opening 13. The outer isolation net 14, on the one hand, blocks the outer husk to prevent the outer husk from flying around, and on the other hand, it can ensure the circulation of airflow, so that the outer husk can be smoothly separated from the wheat kernel.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A wheat peeling and grinding equipment, characterized in that: include: A shell (1) is provided with a feed hopper (2) at the top and a discharge pipe (4) at the bottom. A peeling area, a hull-kernel separation area and a grinding area are sequentially provided in the shell (1) from top to bottom. A peeling mechanism, which is arranged in the peeling area and is used for peeling the wheat; A husk-kernel separation mechanism is arranged in the husk-kernel separation area and is used to separate the husk from the kernel; The grinding mechanism is arranged in the grinding area and is used for grinding the wheat kernels into flour.

2. A wheat peeling and grinding equipment according to claim 1, characterized in that: A driving motor (5) is fixed in the feed hopper (2) via a mounting plate (6); an output end of the driving motor (5) is connected to a rotating shaft (7); and the peeling mechanism, the hull-kernel separation mechanism and the grinding mechanism are all driven by the rotating shaft (7).

3. A wheat peeling and grinding equipment according to claim 2, characterized in that: The peeling mechanism comprises a peeling roller (9), the peeling roller (9) is fixedly sleeved on the rotating shaft (7), a peeling plate (8) adapted to the peeling roller (9) is arranged in the peeling area, and the peeling plate (8) is fixed on the inner wall of the shell (1).

4. A wheat peeling and grinding equipment according to claim 2, characterized in that: The husk-kernel separation mechanism comprises fan blades (11), wherein the fan blades (11) are provided in a plurality of groups and are evenly distributed circumferentially on the rotating shaft (7); an inner isolation net (10) is also provided in the husk-kernel separation area and is covered on the periphery of the fan blades (11); and the inner isolation net (10) is fixed to the inner wall of the shell (1) via a connecting rod.

5. The wheat peeling and grinding equipment according to claim 2, characterized in that: The grinding mechanism comprises a grinding roller (15), which is fixedly sleeved on the rotating shaft (7), and a plurality of grinding strips (16) are circumferentially arranged on the grinding roller (15), and a heating plate (17) is arranged between adjacent grinding strips (16).

6. The wheat peeling and grinding equipment according to claim 5, characterized in that: In the vertical direction, the gap between the grinding bar (16) and the inner wall of the housing (1) gradually decreases from top to bottom.

7. The wheat peeling and grinding equipment according to claim 2, characterized in that: A spiral conveying piece (18) is arranged at the lower end of the rotating shaft (7), and the spiral conveying piece (18) is located in the discharge pipe (4). A spiral scraper (19) is arranged on the spiral conveying piece (18) and is in contact with the inner wall of the discharge pipe (4).

8. The wheat peeling and grinding equipment according to claim 5, characterized in that: A plurality of groups of vibration components are arranged in the circumferential direction of the housing (1), and the vibration components include: A cavity (20) is provided in the housing (1); A plurality of elastic telescopic rods (21) are provided and are equidistantly arranged in the cavity (20); and A vibration plate (22) is fixedly connected to the extended ends of each elastic telescopic rod (21).

9. The wheat peeling and grinding equipment according to claim 4, characterized in that: The husk-kernel separation zone is also provided with an outer husk collection component, the outer husk collection component comprises a collection box (12), the collection box (12) is arranged on the outer wall of the shell (1), an outer isolation net (14) is installed on the collection box (12), and a through opening (13) is opened circumferentially on the shell (1).

10. A wheat peeling and grinding method, applied to the wheat peeling and grinding equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: 1) Wheat is fed into a peeling zone through a feed hopper (2), and the wheat is peeled by a peeling roller (9) to obtain the outer husk and wheat kernel; 2) the husk and the wheat kernel fall onto the inner isolation net (10) in the husk-kernel separation area, and the husk is blown into the collecting box (12) by the fan blades (11) to separate the husk from the wheat kernel; 3) The wheat kernels fall into the grinding area, and are ground into powder by the grinding roller (15). At the same time, the heating plate (17) is heated, and the vibration plate 22 vibrates and strikes the grinding roller (15) to promote the discharge of wheat flour; 4) The spiral conveying piece (18) drives the wheat flour to be discharged from the discharge pipe (4), and at the same time, the scraper (19) scrapes off the wheat flour adhering to the inner wall of the discharge pipe (4).

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