Stone mill flour processing device and process

Abstract

The invention relates to a stone mill flour processing device. The device comprises a lower millstone; the upper millstone is rotatably arranged at the upper end of the lower millstone, and the upper end surface of the lower millstone is in contact with the lower end surface of the upper millstone; the outer rotating ring is rotatably arranged on the periphery of the upper grinding disc; the upper millstone comprises a mounting cavity, the inner millstone is rotatably arranged in the mounting cavity, the lower end face of the inner millstone is in contact with the lower end face of the mounting cavity, the inner millstone is provided with a feeding pipe, the feeding pipe is communicated with the lower end face of the inner millstone, the inner millstone is provided with an inner rotating ring, and the inner rotating ring is in transmission connection with the outer rotating ring; the discharging groove is formed in the lower end of the mounting cavity; and the discharging hole is formed in the lower end of the discharging groove, and the lower end of the discharging hole communicates with the lower end face of the upper grinding disc. Wheat can be subjected to low-temperature and low-rotating-speed multi-stage grinding.

Description

Technical Field

[0001] The invention relates to the technical field of flour processing, in particular to a stone-milled flour processing device and process. Background Art

[0002] The so-called stone-ground flour is flour processed by traditional stone mill without any additives. It is a natural and healthy flour. When the stone mill grinds wheat, its rotation speed is slow, the heat energy generated is low, the protein is not matured, and the nutrients in the wheat are not destroyed.

[0003] Benefits of stone-ground flour: All nutrients in wheat, such as carbohydrates, calcium, phosphorus, iron, vitamin B1, B2, etc., are retained and easily absorbed. According to tests, the content of vitamin E in stone-ground flour is 21 times that of ordinary flour. Stone-ground flour is a high-end gift flour in the flour series. Compared with ordinary machine-ground flour, it has its unique advantages in many aspects.

[0004] From the perspective of processing technology, the grinding machine used for ordinary machine-ground flour runs at a high speed and has a high processing temperature, which has a great destructive effect on some nutrients such as protein and heat-sensitive vitamins. In comparison, the traditional stone mill used in the stone grinding process has the excellent characteristics of low speed and low temperature, which reduces the loss of nutrients and can also retain the unique wheat flavor of wheat.

[0005] From the perspective of nutritional value, most of the flour processed by stone mill is whole wheat flour, while most of the flour processed by machine mill is refined white flour. In comparison, machine milled flour not only destroys the internal protein of the flour by high temperature, causing gluten denaturation, sticky taste, and poor rise, but also the skin and core of the processed flour are separated, and the nutritious B vitamins, minerals, wheat germ and dietary fiber enter the bran, resulting in a strange phenomenon that the higher the flour processing precision, the lower the nutritional value.

[0006] In the current stone-mill flour processing technology system, a series of key problems that need to be solved have been exposed. Among them, the precise control of grinding temperature has become a major technical problem in the industry. Since the structure and operation principle of the stone mill equipment itself are relatively traditional and lack advanced temperature monitoring and control devices, the grinding temperature cannot be accurately controlled during the flour processing process. If the grinding temperature is too high, the nutrients in the flour, such as vitamins and enzymes, will be destroyed, thus affecting the nutritional value and quality of the flour.

[0007] At the same time, the large particle size of the ground flour is also a problem that cannot be ignored in the stone-ground flour processing technology. The large flour particle size not only makes the flour look rough and lacks fineness, which in turn affects the taste and appearance of the finished product and reduces the market competitiveness of the product. In addition, flour with large particle size is more likely to clump during storage, shortening the shelf life of the flour. Summary of the invention

[0008] In order to solve the technical problems existing in the background technology, the present invention provides a stone mill flour processing device and process, which can perform multi-stage grinding of wheat at low temperature and low speed.

[0009] The technical solution adopted by the present invention to solve its technical problem is: A stone-mill flour processing device, comprising: Lower grinding disc; The upper grinding disc is rotatably arranged on the upper end of the lower grinding disc, and the upper end surface of the lower grinding disc contacts the lower end surface of the upper grinding disc; An outer rotating ring is rotatably arranged on the outer periphery of the upper grinding disc; The upper grinding plate includes: An installation cavity, in which the inner grinding disc is rotatably arranged, the lower end surface of the inner grinding disc contacts the lower end surface of the installation cavity, the inner grinding disc is provided with a feed pipe, the feed pipe is communicated with the lower end surface of the inner grinding disc, the inner grinding disc is provided with an inner rotating ring, and the inner rotating ring is drivingly connected with the outer rotating ring; A discharge chute is arranged at the lower end of the installation cavity; The discharge hole is arranged at the lower end of the discharge trough, and the lower end of the discharge hole is communicated with the lower end surface of the upper grinding disc.

[0010] Further, the lower grinding disc comprises: A first lower grinding surface is provided on the upper end surface of the lower grinding disc; a third lower grinding surface, arranged at the center of the lower grinding disc, the third lower grinding surface being located below the first lower grinding surface; A second lower grinding surface is connected to the first lower grinding surface and the third lower grinding surface, and the second lower grinding surface is conical; A discharge port is arranged in the middle of the third lower grinding surface, and the discharge port is connected with a discharge pipe; The upper grinding plate includes: A first upper grinding surface is arranged on the lower end surface of the upper grinding disc, the first upper grinding surface is adapted to the first lower grinding surface, and the discharge hole is communicated with the first upper grinding surface; A third upper grinding surface is arranged at the center of the upper grinding disc, the third upper grinding surface is located below the first upper grinding surface, and the third upper grinding surface is matched with the third lower grinding surface; The second upper grinding surface connects the first upper grinding surface and the third upper grinding surface, the second upper grinding surface is conical, and the second upper grinding surface is matched with the second lower grinding surface.

[0011] Further, the upper grinding disc comprises: A center hole is arranged at the center of the upper grinding disc; A first upper air duct is connected to the central hole and the discharge chute; a second upper air duct, communicating with the central hole and the junction between the first upper grinding surface and the second upper grinding surface; The lower grinding disc includes: The lower air duct is connected with the outside and the junction of the second lower grinding surface and the third lower grinding surface.

[0012] Furthermore, the central hole is provided with an air cooling mechanism, and the air cooling mechanism generates negative pressure in the central hole.

[0013] Further, the air cooling mechanism includes a first air cooling component disposed in the first upper air duct and the second upper air duct; The first air cooling assembly includes: A first cylinder is disposed in the first upper air duct and the second upper air duct; A first fixing member is arranged at the outer end of the first cylinder, and the first fixing member is provided with a one-way valve; The first movable member is slidably arranged in the first cylinder, the first movable member is provided with a one-way valve, and the first movable member is driven by the first connecting rod.

[0014] Further, the air cooling mechanism includes a second air cooling assembly disposed at the lower end of the central hole; The second air cooling assembly includes: A second cylinder is disposed in the central hole; A rotating shaft is rotatably disposed on the second cylinder; A cylinder cavity is provided through the second cylinder body; A second fixing member is arranged at the lower end of the cylinder cavity, and the second fixing member is provided with a one-way valve; A second movable member is slidably disposed in the cylinder cavity, and a one-way valve is disposed on the second movable member; A connecting plate is rotatably disposed on the rotating shaft, and a rotating axis of the connecting plate is inclined to a rotating axis of the rotating shaft; A second connecting rod, both ends of which are respectively connected to the connecting plate and the second movable member ball; An upper gear, arranged at the lower end of the connecting plate; The lower gear is arranged at the upper end of the second cylinder, and the lower gear is meshed with the upper gear.

[0015] Furthermore, a relatively rotatable central shaft is arranged inside the central hole, a crankshaft is arranged on the central shaft, and two ends of the first connecting rod are rotatably connected to the first movable member and the crankshaft respectively; The lower end of the central shaft is connected with the rotating shaft.

[0016] Furthermore, a connecting pipe is provided at the upper end of the central hole, a relatively rotatable fixing seat is provided at the upper end of the connecting pipe, and a vent is provided at the fixing seat; The central shaft is located in the connecting pipe, and the upper end of the central shaft is connected to the fixing seat.

[0017] Furthermore, a lower outer cover is arranged on the outer sides of the lower grinding disc and the upper grinding disc, an outer rotating ring is rotatably arranged on the upper end of the lower outer cover, and the outer rotating ring is driven by a driving wheel; an upper outer cover is arranged on the upper end of the outer rotating ring.

[0018] A stone-ground flour processing technology comprises the following steps: a. Wheat cleaning: remove some impurities in wheat; b. First milling: removing part of the bran; c. Add water: Add water to the wheat; d. Moistening wheat: add water and let it stand for a while; e. Stone removal: remove sand and gravel from wheat; f. Second milling: fine grinding of wheat; g.Wind selection: remove light impurities in wheat; h. Stone milling: The wheat is ground through a stone mill flour processing device.

[0019] Beneficial effects of the present invention: (1) Grinding can be performed between the upper grinding disc and the lower grinding disc, and between the inner grinding disc and the upper grinding disc. The system realizes multi-level fine processing of wheat through the combined grinding structure of the upper grinding disc and the lower grinding disc, and the inner grinding disc and the upper grinding disc, which has a better grinding effect on wheat and a finer particle size of flour.

[0020] (2) The grinding surface between the upper and lower grinding discs and between the inner and upper grinding discs can be efficiently cooled by forced air cooling, ensuring that the grinding temperature is maintained at a balanced state. This mechanism effectively avoids the risk of adverse changes in flour properties due to excessive temperature during the grinding process, thereby ensuring the stability of flour quality.

[0021] (3) A three-level grinding surface is set between the upper grinding disc and the lower grinding disc. Through the coordinated operation of the three-level grinding surfaces, the grinding area and grinding pressure of wheat are increased, the grinding effect of wheat is better, and the particle size of flour is finer.

[0022] (4) Stone-ground flour is ground at a low speed and low temperature, and is ground less frequently, so the gluten and aroma of the wheat germ are preserved. Stone-ground flour absorbs more water when kneading and has a shorter resting time. No matter how you pull, tug or rub it, the noodles remain tough and unbroken. After the noodles or dough sheets are cooked, they are soft, tough and chewy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is an exploded view of the internal structure of the present invention; Figure 3 is a cross-sectional view of the internal structure of the present invention; Figure 4 It is a structural schematic diagram of the lower grinding disc; Figure 5 It is a structural schematic diagram of the upper grinding disc; Figure 6 It is a structural schematic diagram of the air cooling mechanism; Figure 7 yes Figure 6 A partial enlarged view of the position A in the middle; Figure 8 is a schematic diagram of the structure of the first air-cooling component; Fig. 9 is a schematic diagram of the structure of the second air-cooling component; Fig.10 It is a partial cross-sectional view of the second air-cooling component.

[0025] In the picture: 1. Lower grinding disc, 2. Upper grinding disc, 3. Inner grinding disc, 4. Feed pipe, 5. Air cooling mechanism, 6. Upper outer cover, 7. Outer rotating ring, 8. Driving wheel, 9. Inner rotating ring, 10. Lower outer cover, 11. Discharge pipe; 101. first lower grinding surface, 102. second lower grinding surface, 103. third lower grinding surface, 104. lower air duct, 105. discharge port; 201. mounting cavity, 202. discharge slot, 203. discharge hole, 204. center hole, 205. first upper air duct, 206. second upper air duct, 207. first upper grinding surface, 208. second upper grinding surface, 209. third upper grinding surface; 501. fixing seat, 502. vent, 503. connecting pipe, 504. central axis, 505. crankshaft, 506. first air cooling assembly, 507. second air cooling assembly; 5061. a first cylinder, 5062. a first fixed member, 5063. a first movable member, 5064. a first connecting rod; 5071. second cylinder, 5072. second movable part, 5073. second connecting rod, 5074. connecting plate, 5075. rotating shaft, 5076. upper gear, 5077. lower gear, 5078. cylinder cavity, 5079. second fixed part. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-3 As shown, a stone mill flour processing device comprises a lower grinding disc 1, an upper grinding disc 2 rotatably arranged at the upper end of the lower grinding disc 1, and the upper end surface of the lower grinding disc 1 contacts the lower end surface of the upper grinding disc 2 to form a grinding surface. The lower grinding disc 1 and the upper grinding disc 2 are made of granite or bluestone. A lower outer cover 10 is arranged on the outer side of the lower grinding disc 1 and the upper grinding disc 2, and an outer rotating ring 7 is rotatably arranged on the upper end of the lower outer cover 10. The outer rotating ring 7 is located at the outer periphery of the upper grinding disc 2, and the outer rotating ring 7 is driven by a driving wheel 8 arranged on the lower outer cover 10. An upper outer cover 6 is arranged at the upper end of the outer rotating ring 7. The upper outer cover 6 and the lower outer cover 10 are covered on the outer periphery of the lower grinding disc 1 and the upper grinding disc 2, and play a role in isolating airflow, so that flour will not drift into the surrounding environment, and the cleanliness of the surrounding environment is maintained. In actual operation, it is generally necessary to keep the interior of the upper outer cover 6 and the lower outer cover 10 at a negative pressure, so as to further prevent the flour inside the upper outer cover 6 and the lower outer cover 10 from drifting outward. For easy observation, the upper outer cover 6 and the lower outer cover 10 may be made of transparent material.

[0028] The upper end surface of the upper grinding disc 2 is provided with a plurality of concave mounting cavities 201, and the inner grinding disc 3 is rotatably arranged in the mounting cavity 201. In a specific implementation, a limit ring is provided at the upper end of the mounting cavity 201, and the inner rotating ring 9 is rotatably arranged on the limit ring, so as to ensure the smooth rotation of the inner grinding disc 3. The lower end surface of the inner grinding disc 3 contacts the lower end surface of the mounting cavity 201 to form a grinding surface. The inner grinding disc 3 is provided with a feed pipe 4, and the feed pipe 4 is connected to the lower end surface of the inner grinding disc 3. An inner rotating ring 9 is provided on the inner grinding disc 3, and the inner rotating ring 9 is transmission-connected to the outer rotating ring 7. The outer rotating ring 7 rotates, which can drive the inner grinding disc 3 to rotate through the inner rotating ring 9, and can also drive the upper grinding disc 2 to rotate at the same time.

[0029] Grinding can be performed between the upper grinding disc 2 and the lower grinding disc 1, and grinding can be performed between the inner grinding disc 3 and the upper grinding disc 2. The system realizes multi-level fine processing of wheat through the combined grinding structure of the upper grinding disc 2 and the lower grinding disc 1, and the inner grinding disc 3 and the upper grinding disc 2, thereby achieving a better grinding effect on wheat and a finer particle size of flour.

[0030] like Figure 5As shown, the discharge trough 202 is arranged at the lower end of the mounting cavity 201. The discharge hole 203 is arranged at the lower end of the discharge trough 202, and the lower end of the discharge hole 203 is connected to the lower end surface of the upper grinding disc 2. The wheat enters between the lower end surface of the inner grinding disc 3 and the lower end surface of the mounting cavity 201 from the feed pipe 4, so as to grind the wheat. In addition, the lower end surface of the inner grinding disc 3 and the lower end surface of the mounting cavity 201 are provided with grinding lines, and the grinding lines can make the wheat at the feed pipe 4 enter the discharge trough 202 after grinding, and finally be discharged from the discharge hole 203. In a specific implementation, a cleaning mechanism that rotates synchronously with the inner grinding disc 3 is provided in the discharge trough 202, and the cleaning mechanism can clean the discharge trough 202 into the discharge hole 203.

[0031] like Figure 4 As shown, the lower grinding disc 1 includes a first lower grinding surface 101, and the first lower grinding surface 101 is arranged on the upper end surface of the lower grinding disc 1. The third lower grinding surface 103 is arranged at the center of the lower grinding disc 1, and the third lower grinding surface 103 is located below the first lower grinding surface 101. The second lower grinding surface 102 connects the first lower grinding surface 101 and the third lower grinding surface 103, and the second lower grinding surface 102 is conical. The discharge port 105 is arranged in the middle of the third lower grinding surface 103, and the discharge port 105 is connected to the discharge pipe 11.

[0032] like Figure 5 As shown, the upper grinding disc 2 includes a first upper grinding surface 207, which is arranged on the lower end surface of the upper grinding disc 2, the first upper grinding surface 207 is matched with the first lower grinding surface 101, and the discharge hole 203 is connected with the first upper grinding surface 207. The third upper grinding surface 209 is arranged at the center of the upper grinding disc 2, the third upper grinding surface 209 is located below the first upper grinding surface 207, and the third upper grinding surface 209 is matched with the third lower grinding surface 103. The second upper grinding surface 208 connects the first upper grinding surface 207 and the third upper grinding surface 209, the second upper grinding surface 208 is conical, and the second upper grinding surface 208 is matched with the second lower grinding surface 102. The first upper grinding surface 207, the second upper grinding surface 208, the third upper grinding surface 209, the first lower grinding surface 101, the second lower grinding surface 102, and the third lower grinding surface 103 are all provided with grinding lines, which enable the wheat at the discharge hole 203 to pass through the first upper grinding surface 207 and the first lower grinding surface 101, the second upper grinding surface 208 and the second lower grinding surface 102, the third upper grinding surface 209 and the third lower grinding surface 103 in sequence, and finally be discharged from the discharge port 105.

[0033] Through force analysis, it can be known that the grinding pressure between the second upper grinding surface 208 and the second lower grinding surface 102 is greater than the grinding pressure between the first upper grinding surface 207 and the first lower grinding surface 101 and between the third upper grinding surface 209 and the third lower grinding surface 103 .

[0034] A three-level grinding surface is arranged between the upper grinding disc 2 and the lower grinding disc 1. The three-level grinding surfaces work together to increase the grinding area and grinding pressure of the wheat, thereby achieving a better grinding effect on the wheat and making the flour more fine-grained.

[0035] In order to force ventilation and cool the grinding surface, an air flow channel needs to be set up. Figure 4 As shown, the lower grinding disc 1 further includes a lower air duct 104, which connects the outside with the junction of the second lower grinding surface 102 and the third lower grinding surface 103. Figure 5 As shown, the upper grinding disc 2 includes a central hole 204, which is arranged at the center of the upper grinding disc 2. The first upper air duct 205 connects the central hole 204 with the discharge trough 202. The second upper air duct 206 connects the central hole 204 with the junction of the first upper grinding surface 207 and the second upper grinding surface 208.

[0036] The first upper air duct 205 is mainly used to achieve ventilation between the lower end surface of the inner grinding disc 3 and the lower end surface of the installation cavity 201. In addition, in order to prevent the wheat between the lower end surface of the inner grinding disc 3 and the lower end surface of the installation cavity 201 from entering the first upper air duct 205, a filter is provided at the outer end of the first upper air duct 205. The inner grinding disc 3 is provided with a scraper that rotates with the inner grinding disc 3 and can clean the filter to prevent the filter from being blocked.

[0037] The second upper air duct 206 is mainly used to achieve ventilation between the first upper grinding surface 207 and the first lower grinding surface 101. In addition, in order to prevent the wheat between the first upper grinding surface 207 and the first lower grinding surface 101 from entering the second upper air duct 206, a filter is provided at the outer end of the second upper air duct 206. The lower grinding disc 1 is provided with a scraper that rotates with the lower grinding disc 1 and can clean the filter to prevent the filter from being blocked.

[0038] The lower air duct 104 is mainly used to achieve ventilation between the third upper grinding surface 209 and the third lower grinding surface 103 , and between the second upper grinding surface 208 and the second lower grinding surface 102 .

[0039] In order to force ventilation and cool the grinding surface, Figure 6 , 7 As shown, the central hole 204 is provided with an air cooling mechanism 5, which generates negative pressure in the central hole 204, thereby ventilating the first upper air duct 205, the second upper air duct 206 and the lower air duct 104. The air cooling mechanism 5 generally includes a negative pressure fan connected to the central hole 204, and the negative pressure fan generates negative pressure in the central hole 204. In a specific implementation, the air cooling mechanism 5 also includes a first air cooling component 506 disposed in the first upper air duct 205 and the second upper air duct 206.

[0040] like Figure 8As shown, the first air cooling assembly 506 includes a first cylinder 5061, which is disposed in the first upper air duct 205 and the second upper air duct 206. A first fixing member 5062 is disposed at the outer end of the first cylinder 5061, and a one-way valve is disposed on the first fixing member 5062. A first movable member 5063 is slidably disposed in the first cylinder 5061, and a one-way valve is disposed on the first movable member 5063, and the first movable member 5063 is driven by a first connecting rod 5064.

[0041] When the first movable member 5063 moves, the air outside the first fixed member 5062 will enter the central hole 204 through the first fixed member 5062 , the first cylinder 5061 and the first movable member 5063 in sequence.

[0042] like Fig. 9 , 10 As shown, the air cooling mechanism 5 includes a second air cooling assembly 507 arranged at the lower end of the center hole 204. The second air cooling assembly 507 includes a second cylinder 5071, and the second cylinder 5071 is arranged in the center hole 204. The rotating shaft 5075 is rotatably arranged on the second cylinder 5071. The cylinder cavity 5078 is opened through the second cylinder 5071. The second fixing member 5079 is arranged at the lower end of the cylinder cavity 5078, and the second fixing member 5079 is provided with a one-way valve. The second movable member 5072 is slidably arranged in the cylinder cavity 5078, and the second movable member 5072 is provided with a one-way valve. The connecting plate 5074 is rotatably arranged on the rotating shaft 5075, and the rotating axis of the connecting plate 5074 is inclined to the rotating axis of the rotating shaft 5075. The two ends of the second connecting rod 5073 are respectively connected with the connecting plate 5074 and the second movable member 5072. The upper gear 5076 is disposed at the lower end of the connecting plate 5074. The lower gear 5077 is disposed at the upper end of the second cylinder 5071, and the lower gear 5077 is meshed with the upper gear 5076. In order to prevent wheat from entering the center hole 204 from the lower end, a filter is disposed at the lower end of the center hole 204, and a scraper is disposed on the lower grinding disc 1 that rotates with the lower grinding disc 1 and can clean the filter to prevent the filter from being blocked.

[0043] When the rotating shaft 5075 rotates, the air at the lower end of the second fixing member 5079 will pass through the second fixing member 5079, the cylinder cavity 5078 and the second movable member 5072 in sequence and enter the central hole 204.

[0044] In order to be able to drive the first air cooling component 506 and the second air cooling component 507. Figure 6As shown, a relatively rotatable central shaft 504 is disposed inside the central hole 204, and a crankshaft 505 is disposed on the central shaft 504. The two ends of the first connecting rod 5064 are respectively rotatably connected to the first movable member 5063 and the crankshaft 505. The lower end of the central shaft 504 is connected to the rotating shaft 5075. When the upper grinding disc 2 rotates, the central shaft 504 rotates relative to the central hole 204, and can drive the first air cooling assembly 506 and the second air cooling assembly 507 to operate.

[0045] In order to discharge the air in the central hole 204, a connecting pipe 503 is provided at the upper end of the central hole 204, a relatively rotatable fixing seat 501 is provided at the upper end of the connecting pipe 503, a vent 502 is provided at the fixing seat 501, and the negative pressure fan is connected to the vent 502. The central shaft 504 is located in the connecting pipe 503, and the upper end of the central shaft 504 is connected to the fixing seat 501.

[0046] The grinding surface between the upper grinding disc 2 and the lower grinding disc 1 and the grinding surface between the inner grinding disc 3 and the upper grinding disc 2 can be efficiently cooled by forced air cooling, ensuring that the grinding temperature is maintained in a balanced state. This mechanism effectively avoids the risk of adverse changes in flour properties due to excessive temperature during the grinding process, thereby ensuring the quality stability of the flour.

[0047] A stone-ground flour processing technology comprises the following steps: a. Wheat cleaning: remove some impurities in wheat; b. First milling: remove part of the bran; c. Add water: add water to the wheat; d. Moistening wheat: add water and let it stand for a while; e. Stone removal: remove sand and gravel from wheat; f. Second milling: fine grinding of wheat; g.Wind selection: remove light impurities in wheat; h. Stone milling: The stone mill flour processing device grinds wheat, specifically: The wheat enters from the feed pipe 4 , and after being ground by the lower end surface of the inner grinding disc 3 and the lower end surface of the mounting cavity 201 , the wheat enters the discharge trough 202 , and finally enters the discharge hole 203 .

[0048] The wheat in the discharge hole 203 is ground successively by the first upper grinding surface 207 and the first lower grinding surface 101 , the second upper grinding surface 208 and the second lower grinding surface 102 , the third upper grinding surface 209 and the third lower grinding surface 103 , and finally enters the discharge port 105 and is discharged from the discharge pipe 11 .

[0049] During grinding, the first air cooling component 506 combined with the second air cooling component 507 can extract air between the lower end surface of the inner grinding disc 3 and the lower end surface of the mounting cavity 201, between the first upper grinding surface 207 and the first lower grinding surface 101, between the second upper grinding surface 208 and the second lower grinding surface 102, and between the third upper grinding surface 209 and the third lower grinding surface 103, and take away the heat generated by grinding, so that the grinding surface between the upper grinding disc 2 and the lower grinding disc 1 and the grinding surface between the inner grinding disc 3 and the upper grinding disc 2 can be efficiently cooled by forced air cooling. When the first air cooling component 506 is combined with the second air cooling component 507 to extract air, it can also make the interior of the upper outer cover 6 and the lower outer cover 10 negative pressure, thereby further preventing the flour inside the upper outer cover 6 and the lower outer cover 10 from floating outward. In a specific implementation, there must be a gap between the upper outer cover 6 and the lower outer cover 10, so that the outside air can be replenished into the interior in time.

[0050] Stone-ground flour is ground at a low speed and low temperature, and is ground less times, so the gluten and aroma of wheat germ are preserved. Stone-ground flour absorbs more water when kneading and has a shorter resting time. No matter it is pulled, pulled, or rubbed, the noodles can remain tough and unbroken. After the noodles or dough sheets are cooked, they have a soft and chewy texture.

[0051] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A stone mill flour processing device, characterized in that: include: Lower grinding disc (1); An upper grinding disc (2) is rotatably arranged on the upper end of the lower grinding disc (1), and the upper end surface of the lower grinding disc (1) is in contact with the lower end surface of the upper grinding disc (2); An outer rotating ring (7) rotatably arranged on the outer periphery of the upper grinding disc (2); The upper grinding disc (2) comprises: An installation cavity (201), wherein the inner grinding disc (3) is rotatably arranged in the installation cavity (201), the lower end surface of the inner grinding disc (3) contacts the lower end surface of the installation cavity (201), the inner grinding disc (3) is provided with a feed pipe (4), the feed pipe (4) is communicated with the lower end surface of the inner grinding disc (3), the inner grinding disc (3) is provided with an inner rotating ring (9), and the inner rotating ring (9) is drivingly connected to the outer rotating ring (7); A discharge chute (202) is arranged at the lower end of the installation cavity (201); A discharge hole (203) is provided at the lower end of the discharge trough (202), and the lower end of the discharge hole (203) is communicated with the lower end surface of the upper grinding disc (2).

2. A stone mill flour processing device according to claim 1, characterized in that: The lower grinding disc (1) comprises: A first lower grinding surface (101) is arranged on the upper end surface of the lower grinding disc (1); A third lower grinding surface (103) is arranged at the center of the lower grinding disc (1), and the third lower grinding surface (103) is located below the first lower grinding surface (101); a second lower grinding surface (102) connecting the first lower grinding surface (101) and the third lower grinding surface (103), wherein the second lower grinding surface (102) is conical; A discharge port (105) is arranged in the middle of the third lower grinding surface (103), and the discharge port (105) is connected to the discharge pipe (11); The upper grinding disc (2) comprises: A first upper grinding surface (207) is arranged on the lower end surface of the upper grinding disc (2), the first upper grinding surface (207) is adapted to the first lower grinding surface (101), and the discharge hole (203) is connected to the first upper grinding surface (207); A third upper grinding surface (209) is arranged at the center of the upper grinding disc (2), the third upper grinding surface (209) is located below the first upper grinding surface (207), and the third upper grinding surface (209) is adapted to the third lower grinding surface (103); The second upper grinding surface (208) is connected to the first upper grinding surface (207) and the third upper grinding surface (209); the second upper grinding surface (208) is conical; and the second upper grinding surface (208) is adapted to the second lower grinding surface (102).

3. A stone mill flour processing device according to claim 2, characterized in that: The upper grinding disc (2) comprises: A center hole (204) is arranged at the center of the upper grinding disc (2); A first upper air duct (205) communicating with the central hole (204) and the discharge trough (202); A second upper air duct (206) connected to the central hole (204) and the junction between the first upper grinding surface (207) and the second upper grinding surface (208); The lower grinding disc (1) comprises: The lower air duct (104) is connected to the outside and the junction of the second lower grinding surface (102) and the third lower grinding surface (103).

4. A stone mill flour processing device according to claim 3, characterized in that: The central hole (204) is provided with an air cooling mechanism (5), and the air cooling mechanism (5) generates negative pressure in the central hole (204).

5. The stone mill flour processing device according to claim 4, characterized in that: The air cooling mechanism (5) comprises a first air cooling component (506) arranged in the first upper air duct (205) and the second upper air duct (206); The first air cooling component (506) comprises: A first cylinder (5061) is disposed in the first upper air duct (205) and the second upper air duct (206); A first fixing member (5062) is arranged at the outer end of the first cylinder (5061), and the first fixing member (5062) is provided with a one-way valve; The first movable member (5063) is slidably disposed in the first cylinder (5061); the first movable member (5063) is provided with a one-way valve; and the first movable member (5063) is driven by a first connecting rod (5064).

6. The stone mill flour processing device according to claim 5, characterized in that: The air cooling mechanism (5) comprises a second air cooling component (507) arranged at the lower end of the central hole (204); The second air cooling component (507) comprises: The second cylinder (5071) is disposed in the central hole (204); A rotating shaft (5075) is rotatably disposed on the second cylinder (5071); A cylindrical cavity (5078) is formed through the second cylindrical body (5071); A second fixing member (5079) is disposed at the lower end of the cylindrical cavity (5078), and the second fixing member (5079) is provided with a one-way valve; A second movable member (5072) is slidably disposed in the cylinder cavity (5078), and a one-way valve is disposed on the second movable member (5072); A connecting plate (5074) is rotatably disposed on the rotating shaft (5075), wherein the rotating axis of the connecting plate (5074) is inclined to the rotating axis of the rotating shaft (5075); The second connecting rod (5073) has two ends respectively connected to the connecting plate (5074) and the second movable member (5072) by a ball; An upper gear (5076) is disposed at the lower end of the connecting plate (5074); The lower gear (5077) is arranged at the upper end of the second cylinder (5071), and the lower gear (5077) is meshed with the upper gear (5076).

7. The stone mill flour processing device according to claim 6, characterized in that: A relatively rotatable central shaft (504) is disposed inside the central hole (204), the central shaft (504) is provided with a crankshaft (505), and two ends of the first connecting rod (5064) are rotatably connected to the first movable member (5063) and the crankshaft (505) respectively; The lower end of the central shaft (504) is connected to the rotating shaft (5075).

8. The stone mill flour processing device according to claim 7, characterized in that: A connecting pipe (503) is provided at the upper end of the central hole (204), a relatively rotatable fixing seat (501) is provided at the upper end of the connecting pipe (503), and a vent (502) is provided at the fixing seat (501); The central axis (504) is located in the connecting tube (503), and the upper end of the central axis (504) is connected to the fixing seat (501).

9. The stone mill flour processing device according to claim 1, characterized in that: A lower outer cover (10) is arranged on the outer sides of the lower grinding disc (1) and the upper grinding disc (2); the outer rotating ring (7) is rotatably arranged on the upper end of the lower outer cover (10); the outer rotating ring (7) is driven by a driving wheel (8); and an upper outer cover (6) is arranged on the upper end of the outer rotating ring (7).

10. A stone-milled flour processing technology, based on a stone-milled flour processing device according to any one of claims 1 to 9, characterized in that: The steps include: a. Wheat cleaning: remove some impurities in wheat; b. First milling: remove part of the bran; c. Add water: add water to the wheat; d. Moistening wheat: add water and let it stand for a while; e. Stone removal: remove sand and gravel from wheat; f. Second milling: fine grinding of wheat; g.Wind selection: remove light impurities in wheat; h. Stone milling: The wheat is ground through a stone mill flour processing device.

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