Black wheat milling equipment

Abstract

The invention discloses black wheat milling equipment, belonging to the technical field of black wheat processing, comprising a bracket, an outer shell, a milling assembly and a first cooling assembly, wherein the outer shell is fixedly connected to the upper end of the bracket, the milling assembly comprises a first milling roller and a milling barrel, the first milling roller is rotatably connected to the inside of the milling barrel, the milling barrel is integrally formed inside the outer shell, a plurality of evenly distributed sieve holes are provided on the milling barrel, the first cooling assembly is used to cool the milling assembly, the first milling roller has a plurality of milling convex parts for milling, a plurality of first cavities matching the milling convex parts are provided on the first milling roller, and the first cooling assembly is used to transport cooling liquid into the first cavity to cool the milling convex parts. Compared with the prior art, the black wheat milling equipment of the invention can avoid the situation that the high temperature environment during the milling process affects the taste of black wheat, is conducive to improving the quality of black wheat, is conducive to improving the reputation of manufacturers, and is conducive to improving product competitiveness.

Description

Technical Field

[0001] The invention belongs to the technical field of black wheat processing, and in particular relates to black wheat grinding equipment. Background Art

[0002] Black wheat research units have developed a new variety of special-purpose high-quality wheat using different breeding methods. It is rich in nutrients and has the effects of moisturizing the intestines, lowering cholesterol, and anti-oxidation.

[0003] Processing black wheat into flour for making starch, noodles, cakes and other foods is a common black wheat method. The processing process of black wheat flour mainly includes: grinding and sifting the clean wheat after washing and tempering into finished flour that meets national standards. Among them, grinding is a key step in black wheat processing. The existing grinding equipment runs for a long time during grinding, and its temperature will gradually increase with the running time. In particular, the grinding equipment of black wheat flour produced on the assembly line has a grinding component that performs grinding operation for a long time. The grinding component and the black wheat are rubbed for a long time, which causes the temperature of the grinding component to rise, causing the black wheat to be severely heated during the crushing process, resulting in the denaturation and loss of the nutritional components of the black wheat, affecting the taste of the black wheat flour, and easily causing the quality of the black wheat flour produced by the black wheat flour manufacturer to be uneven. That is, the black wheat flour ground out at the beginning of the operation of the grinding equipment has a better taste. As the temperature rises during the operation of the grinding equipment, the taste of the black wheat flour gradually deteriorates, which greatly affects the quality of the black wheat flour produced by the manufacturer, affects the reputation of the manufacturer, and is not conducive to the improvement of the competitiveness of the manufacturer's products.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The object of the present invention is to provide a triticale flour milling device which can solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0007] Black wheat grinding equipment includes a bracket, an outer shell, a grinding component and a first cooling component. The outer shell is fixedly connected to the upper end of the bracket. The grinding component includes a first grinding roller and a grinding cylinder. The first grinding roller is rotatably connected to the inside of the grinding cylinder. The grinding cylinder is integrally formed inside the outer shell. The grinding cylinder is provided with a plurality of evenly distributed sieve holes. The first cooling component is used to cool the grinding component. The first grinding roller has a plurality of grinding convexities for grinding. The first grinding roller is provided with a plurality of first cavities matching the grinding convexities. The first cooling component is used to transport cooling liquid into the first cavity to cool the grinding convexities.

[0008] In one or more embodiments of the present invention, the first cooling component includes a water tank and a cooling pipeline, the coolant is filled in the water tank, the cooling pipeline is used to transport the coolant in the water tank to the first cavity, the cooling pipeline includes a rotary joint, the rotary joint is installed on the rotating shaft of the first grinding roller, a second multi-way joint is installed at one end of the rotary joint, a fourth connecting pipe is connected between the second multi-way joint and the water tank, a first multi-way joint is installed at one end of the rotary joint away from the second multi-way joint, and a plurality of groups of infusion tubes matching the first cavity are installed on the first multi-way joint.

[0009] In one or more embodiments of the present invention, the infusion tube includes a first connecting tube and a second connecting tube, the output end of the first connecting tube is close to the rotary joint, and the output end of the second connecting tube is far from the output end of the first connecting tube.

[0010] In one or more embodiments of the present invention, a guide cylinder is installed between the grinding assembly and the outer shell, the lower end of the guide cylinder is provided with an opening, a secondary grinding assembly matching the opening is installed on one side wall of the outer shell, the secondary grinding assembly is used to achieve secondary grinding, a second cavity is provided inside the guide cylinder, a third connecting pipe is connected between the second cavity and the second multi-way joint, and a fifth connecting pipe is connected between the second cavity and the water tank.

[0011] In one or more embodiments of the present invention, a motor is included, and the motor is placed on one side of the bracket. A first pulley matching the motor is installed on the first grinding roller, and a second belt is installed between the first pulley and the motor.

[0012] In one or more embodiments of the present invention, the secondary grinding assembly includes two second grinding rollers, one of the second grinding rollers is fixedly connected to a first gear at one end close to the motor, a second gear matching the first gear is rotatably connected between the two second grinding rollers, an end of the second gear away from the second grinding roller is fixedly connected to a connecting rod, an end of the connecting rod away from the second gear is fixedly connected to a second pulley, a first belt is installed between the second pulley and the motor, a protective shell matching the secondary grinding assembly is installed on one side wall of the outer shell, and the connecting rod and the protective shell are rotatably connected.

[0013] In one or more embodiments of the present invention, the distance between the two second grinding rollers is not greater than the aperture of the sieve hole, and the distance between the second grinding roller and the side wall of the opening is not greater than the distance between the two second grinding rollers.

[0014] In one or more embodiments of the present invention, a second cooling assembly matching the sieve hole is installed on the outer shell, and the second cooling assembly includes a gas source and a nozzle, and the nozzle is obliquely installed on the side wall of the sieve hole, and a gas delivery pipe is connected between the gas source and the nozzle.

[0015] In one or more embodiments of the present invention, a feed pipe for feeding materials to the grinding assembly is installed on the outer shell, and a discharge pipe for discharging materials is arranged at one end of the outer shell.

[0016] In one or more embodiments of the present invention, grooves are formed between adjacent grinding protrusions, and the height of the grooves is lower than the height of the top ends of the grinding protrusions.

[0017] Compared with the prior art, the black wheat milling equipment of the present invention has the following advantages:

[0018] 1) By setting the grinding component and the first cooling component, the temperature of the grinding component during the grinding process can be greatly reduced, and the grinding component can be kept within a certain temperature range, so as to avoid the black wheat being severely heated during the grinding process, thereby avoiding the denaturation and loss of components of the black wheat flour due to severe heating of the black wheat, and avoiding the situation where the high temperature environment during the grinding process affects the taste of the black wheat, which is beneficial to improving the quality of the black wheat, the reputation of the manufacturer, and the competitiveness of the product;

[0019] 2) By setting a guide cylinder, after the milling assembly completes the milling, the black wheat flour is sprayed onto the inner surface of the guide cylinder through the milling cylinder, and the first cooling assembly cooperates with the guide cylinder to transport the hot coolant into the guide cylinder and exchange heat with the guide cylinder, so that the black wheat flour falling on the guide cylinder can be dried, and the heat of the coolant is utilized, which saves energy and protects the environment while reducing the use cost of the milling equipment during use;

[0020] 3) By setting a secondary grinding component to perform secondary grinding on the black wheat flour ground by the grinding component, the quality of the black wheat flour is ensured, and the particle size of the black wheat flour can meet the requirements as much as possible;

[0021] 4) Through the cooperation of the motor, the first belt and the second belt, the secondary grinding assembly and the grinding assembly are driven by one motor. When the motor is damaged, it can be easily replaced, which greatly reduces the time required for disassembly and replacement of the motor and reduces the economic losses caused to the manufacturer by the need for repair and disassembly of the damaged motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The structure of the black wheat milling equipment in one embodiment of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The structure of the black wheat milling equipment in one embodiment of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 3 A cross-sectional view of a black wheat flour milling device according to an embodiment of the present invention Figure 1 ;

[0026] Figure 4 for Figure 3 Schematic diagram of the structure at A in the middle;

[0027] Figure 5 A cross-sectional view of a black wheat flour milling device according to an embodiment of the present invention Figure 2 ;

[0028] Figure 6 for Figure 5 Schematic diagram of the structure at B in the middle;

[0029] Figure 7 It is a partial structural schematic diagram of a black wheat flour milling device in one embodiment of the present invention;

[0030] Figure 8 A partial cross-sectional view of a black wheat flour milling device according to an embodiment of the present invention;

[0031] Fig. 9 It is a schematic structural diagram of a secondary grinding assembly in one embodiment of the present invention;

[0032] Fig.10 is a cross-sectional view of an outer shell in one embodiment of the present invention;

[0033] Fig.11 It is a schematic structural diagram of a grinding assembly in one embodiment of the present invention;

[0034] Fig.12 for Fig.11 Schematic diagram of the structure at C in the middle;

[0035] Fig.13 This is a schematic diagram of the structure of a cooling pipeline in one embodiment of the present invention;

[0036] Fig.14 It is a schematic structural diagram of a first grinding roller in one embodiment of the present invention;

[0037] Fig.15 It is a cross-sectional view of the first grinding roller in one embodiment of the present invention.

[0038] Description of main reference numerals:

[0039] 1. Bracket; 2. Outer shell; 201. Discharge pipe; 3. First grinding roller; 301. First cavity; 302. First pulley; 303. Grinding convex part; 304. Groove; 4. Grinding cylinder; 401. Screen hole; 5. Guide cylinder; 501. Second cavity; 502. Opening; 6. Secondary grinding assembly; 601. Second grinding roller; 602. First gear; 603. Connecting rod; 604. Second gear; 605. Second pulley; 7. First cooling assembly; 701. Water tank ; 702, cooling pipeline; 7021, rotary joint; 7022, first multi-way joint; 7023, first connecting pipe; 7024, second connecting pipe; 7025, second multi-way joint; 7026, third connecting pipe; 7027, fourth connecting pipe; 703, fifth connecting pipe; 8, motor; 9, first belt; 10, second belt; 11, baffle; 12, feed pipe; 13, second cooling assembly; 1301, gas delivery pipe; 1302, nozzle; 14, protective shell. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0041] like Figure 1 to Figure 5As shown, the black wheat milling equipment in one embodiment of the present invention comprises a bracket 1, the upper end of the bracket 1 is fixedly connected to an outer shell 2, and a milling assembly is installed inside the outer shell 2. A storage cavity is formed between the milling assembly and the outer shell 2, and the storage cavity is used to store black wheat flour after the milling assembly is milled. A feed pipe 12 matching the milling assembly is installed on the outer shell 2, and the feed pipe 12 transports black wheat into the milling assembly by negative pressure.

[0042] like Figures 1 to 11 As shown, the milling assembly includes a first milling roller 3 and a milling cylinder 4, the milling cylinder 4 is integrally formed inside the outer shell 2, and the first milling roller 3 is rotatably connected inside the milling cylinder 4. The feed pipe 12 conveys black wheat between the first milling roller 3 and the milling cylinder 4. The first milling roller 3 rotates, and the milling cylinder 4 does not rotate. During the rotation of the first milling roller 3, the milling cylinder 4 and the first milling roller 3 squeeze and crush the black wheat, and the squeezing effect between the first milling roller 3 and the milling cylinder 4 is used to crush the black wheat. During the squeezing process, the black wheat is subjected to great pressure and friction, resulting in an increase in the interaction force between the particles. The first milling roller 3 and the milling cylinder 4 generate local high temperature and high pressure, which makes the material easier to be crushed. That is, the milling operation is realized during the rotation of the first milling roller 3. The milling cylinder 4 is provided with a plurality of evenly distributed sieve holes 401. After the black wheat is powdered, the black wheat flour is discharged into the storage cavity through the sieve holes 401. Generally, the aperture of the sieve hole 401 is 0.5 mm to 0.1 mm, that is, the first grinding roller 3 and the grinding cylinder 4 can cooperate to grind the black wheat into black wheat flour with a particle size of 0.5 mm to 0.1 mm, and the particle size of the ground powder can be controlled by changing the distance between the first grinding roller 3 and the grinding cylinder 4.

[0043] Specifically, Figure 1 to Figure 14 As shown, a first pulley 302 is provided at one end of the first grinding roller 3, and the first pulley 302 is located outside the outer shell 2. A motor 8 matching the first pulley 302 is placed at the lower end of the bracket 1, and a second belt 10 is connected between the output shaft of the motor 8 and the first pulley 302. When the output shaft of the motor 8 rotates, the second belt 10 is rotated, and the second belt 10 rotates with the first grinding roller 3 in the grinding cylinder 4, that is, the first grinding roller 3 is driven by the motor 8 to rotate in the grinding cylinder 4.

[0044] Furthermore, Figure 1 to Figure 15As shown, the first grinding roller 3 has a plurality of grinding convex portions 303, and the grinding convex portions 303 are used to grind black wheat. A groove 304 is formed between adjacent grinding convex portions 303, and the height of the groove 304 is lower than that of the grinding convex portions 303. The grinding convex portions 303 generate heat during grinding, and the heat is transferred to the groove 304, which can reduce the temperature of the grinding convex portions 303 during grinding. The first grinding roller 3 is also provided with a first cavity 301 matching the grinding convex portions 303, and the grinding equipment includes a first cooling component 7 matching the first cavity 301, and the first cooling component 7 is used to circulate and transport cooling liquid into the first cavity 301, thereby reducing the temperature of the grinding convex portions 303 during grinding, so that the grinding equipment is not prone to high temperature during use, avoiding the situation that the temperature of the black wheat flour is too high due to the high temperature of the grinding equipment, thereby causing the nutrition components of the black wheat flour to be denatured and lost, and the taste to be deteriorated, which is conducive to improving the quality of the black wheat flour produced by the manufacturer.

[0045] Among them, the grinding cylinder 4 is generally made of metal with poor thermal conductivity, so that during the grinding process, the grinding assembly only needs to cool the first grinding roller 3 through the first cooling assembly 7, which can reduce the cost of cooling the grinding assembly during the use of the grinding equipment.

[0046] like Figures 1 to 13 As shown, the first cooling assembly 7 includes a water tank 701 and a cooling pipeline 702 . The water tank 701 is filled with coolant. The cooling pipeline 702 is used to transport the coolant to the first cavity 301 . The heated coolant can also be extracted through the cooling pipeline 702 .

[0047] Specifically, Figures 1 to 13 As shown, the cooling pipeline 702 includes a rotary joint 7021, which is mounted on the rotating shaft of the first grinding roller 3, and the rotary joint 7021 is located at one end of the first grinding roller 3 away from the first pulley 302, and a second multi-way joint 7025 is mounted on one end of the rotary joint 7021, and a third connecting pipe 7026 is connected between the second multi-way joint 7025 and the water tank 701, that is, the coolant in the water tank 701 is transported to the second multi-way joint 7025 through the third connecting pipe 7026. A first multi-way joint 7022 is mounted on one end of the rotary joint 7021 away from the second multi-way joint 7025, and a plurality of groups of infusion tubes matching the first cavity 301 are mounted on the first multi-way joint 7022. The cooling liquid in the water tank 701 can be delivered to the rotary joint 7021 through the third connecting pipe 7026, and then delivered to the first multi-way infusion joint 7022 through the rotary joint 7021. The first multi-way joint 7022 delivers the cooling liquid to the infusion tube, and the infusion tube delivers the cooling liquid to the first cavity 301.

[0048] like Figure 6As shown, the infusion tube includes a first connecting tube 7023, a third connecting tube 7026, a second multi-way connector 7025, a rotary joint 7021, a first multi-way connector 7022 and the first connecting tube 7023 to form a cold liquid delivery pipeline, and the cold liquid delivery pipeline is used to deliver the cooling liquid in the water tank 701 to the first cavity 301, so that the grinding equipment can cool down the first grinding roller 3 during the grinding process, so as to achieve the effect of cold grinding, thereby improving the quality and taste of black wheat flour.

[0049] like Figure 3-4 As shown, a guide tube 5 is installed between the inner wall of the outer shell 2 and the outer wall of the milling assembly, and the guide tube 5 plays the role of dust blocking and dust suppression. After the milling assembly grinds the black wheat into flour, the black wheat flour is ejected from the sieve hole 401 due to the high pressure inside the milling assembly, and the ejected black wheat flour contacts the inner wall of the guide tube 5. The black wheat flour is blocked by the guide tube 5 and stays on the inner wall of the guide tube 5, and the black wheat flour can slide down along the inner wall of the guide tube 5. The guide tube 5 can prevent the black wheat flour from easily overflowing from the gaps and connections of the outer shell 2, thereby reducing the normal loss of black wheat flour during the production process.

[0050] like Figures 1 to 8 As shown, the guide tube 5 is provided with a second cavity 501, and a fourth connecting pipe 7027 is connected between the second multi-way joint 7025 and the second cavity 501. The infusion pipe includes a second connecting pipe 7024 installed on the first connecting pipe 7023, and the second connecting pipe 7024, the first connecting pipe 7023, the first multi-way joint 7022, the rotary joint 7021, the second multi-way joint 7025 and the fourth connecting pipe 7027 form a hot liquid delivery pipeline, which is used to deliver the cooling liquid heated by cooling in the first cavity 301 to the second cavity 501, so that the second cavity 501 is filled with hot cooling liquid, thereby increasing the temperature of the surface of the guide tube 5. When the black wheat is ground into powder by the milling assembly, it contacts the surface of the second cavity 501, and the second cavity 501 exchanges heat with the black wheat flour, thereby drying the black wheat flour. A fifth connecting pipe 703 is further provided between the second cavity 501 and the water tank 701, and the fifth connecting pipe 703 is used to transport excess coolant back to the water tank 701 for cooling, or to transport the coolant in the second cavity 501 back to the water tank 701. The water tank 701, the cooling pipeline 702 and the fifth connecting pipe 703 complete the recycling of the coolant, which can greatly save the use cost of the milling equipment in the milling process, thereby reducing the production cost of black wheat flour, which is beneficial for manufacturers to produce black wheat flour.

[0051] like Figures 1 to 13As shown, the output end of the first connecting pipe 7023 is close to the rotary joint 7021, and the output end of the second connecting pipe 7024 is far away from the output end of the first connecting pipe 7023. Among them, the output end of the first connecting pipe 7023 and the connection between the second connecting pipe 7024 and the first connecting pipe 7023 are both provided with a solenoid valve (not shown in the figure). When the first connecting pipe 7023 outputs cold coolant, the solenoid valve on the second connecting pipe 7024 is closed, and when the second connecting pipe 7024 draws back hot coolant, the solenoid valve on the first connecting pipe 7023 is closed. In this way, the first connecting pipe 7023 and the second connecting pipe 7024 can not affect each other during use. That is, the switching of the hot liquid delivery pipeline and the cold liquid delivery pipeline is completed by the solenoid valve.

[0052] Preferably, a heating component can be installed in the second cavity 501, and the heating component can be specifically a point heating wire. The heating component is used to heat the second cavity 501 when the milling device just starts to grind. Since the temperature of the milling component will not be very high when the milling device just starts to grind, the surface of the guide tube 5 will not have the temperature required for the drying process. Therefore, the heating component can solve the problem that the temperature of the guide tube 5 is not high when the milling device is just used, and the black wheat flour cannot be dried. The upper limit of the temperature of the guide tube 5 can also be increased by the heating component. The hot coolant in the second cavity 501 may cause the surface of the guide tube 5 to be insufficient to dry the black wheat flour, and the surface of the guide tube 5 is insufficient to dry the black wheat flour. The heating component is heated to compensate for the temperature of the hot coolant in the second cavity 501, so that the hot coolant can be heated by the heating component, thereby increasing the temperature of the surface of the guide tube 5 and enabling the guide tube 5 to dry the black wheat flour.

[0053] Among them, according to the different production processes of black wheat flour, if the drying temperature requirement of black wheat flour is low, the content of the hot coolant in the second cavity 501 can be reduced, or the flow rate of the hot coolant in the second cavity 501 can be increased, so as to control the temperature of the surface of the guide tube 5 so that the temperature of the surface of the guide tube 5 can meet the temperature requirement of the black wheat flour drying process.

[0054] Preferably, Figures 1 to 11 As shown, in order to ensure the uniformity of drying of black wheat flour, only two groups of sieve holes 401 are provided, and they are symmetrically arranged on the upper part of the grinding cylinder 4. The black wheat flour is sprayed at the same angle as much as possible, and the sprayed black wheat flour slides along the inner wall of the guide cylinder 5, and the contact time between the sprayed black wheat flour and the guide cylinder 5 is ensured to be the same as much as possible, so as to ensure the uniformity of drying of the black wheat flour.

[0055] like Figure 1 to Figure 4As shown, an opening 502 is provided at the lower end of the second cavity 501, and a secondary grinding assembly 6 matching the opening 502 is installed on the side wall of the outer shell 2, and the secondary grinding assembly 6 is used for secondary grinding of black wheat flour.

[0056] Specifically, Figures 1 to 9 As shown, the secondary grinding assembly 6 includes two second grinding rollers 601, one end of one of the second grinding rollers 601 close to the motor 8 is fixedly connected to a first gear 602, a second gear 604 matching the first gear 602 is rotatably connected between the two second grinding rollers 601, a connecting rod 603 is fixedly connected to one end of the second gear 604 away from the second grinding roller 601, a second belt pulley 605 is fixedly connected to one end of the connecting rod 603 away from the second gear 604, and a first belt 9 is installed between the second belt pulley 605 and the motor 8. A protective shell 14 matching the secondary grinding assembly 6 is installed on one side wall of the outer shell 2, and the connecting rod 603 and the protective shell 14 are rotatably connected. That is, the output shaft of the motor 8 rotates, which can drive the second pulley 605 to rotate, the second pulley 605 drives the connecting rod 603 to rotate, the connecting rod 603 drives the second gear 604 to rotate, and the second gear 604 drives the first gear 602 to rotate, that is, one of the second grinding rollers 601 rotates, and the other second grinding roller 601 does not rotate. The rotating second grinding roller 601 rotates toward the other non-rotating second grinding roller 601, and the black wheat flour ground by the grinding assembly is then ground for the second time through the two first gears 602.

[0057] Preferably, the connecting rod 603 can be connected to one of the second grinding rollers 601, so that the connecting rod 603 directly drives one of the second grinding rollers 601 to rotate, and the first gears 602 are provided on both second grinding rollers 601, and the two first gears 602 are meshed. When the motor 8 is started, the two second grinding rollers 601 can rotate in relative directions.

[0058] like Figure 1-2 As shown, a baffle 11 matching the first pulley 302 and the second pulley 605 is installed on the bracket 1. The baffle 11 can protect the first pulley 302 and the second pulley 605 from external damage, and can also protect parts of the first belt 9 and the second belt 10.

[0059] Furthermore, Figure 1 to Figure 4As shown, the spacing between the two second grinding rollers 601 is not greater than the aperture of the sieve hole 401, and the spacing between the second grinding roller 601 and the side wall of the opening 502 is not greater than the spacing between the two second grinding rollers 601. The spacing between the second grinding rollers 601 is generally equal to or less than the aperture of the sieve hole 401, so that it can play the role of filtering and secondary grinding, and the spacing between the second grinding roller 601 and the opening 502 is not greater than the spacing between the two second grinding rollers 601. When the first gears 602 are secondary grinding, one of the first gears 602 rotates, and the other first gear 602 increases the friction between the two first gears 602 due to the black wheat flour, and the two first gears 602 will rotate relatively, which can drive the large particle powder between the second grinding roller 601 and the side wall of the opening 502 to between the two second grinding rollers 601, and realize secondary grinding through the rolling of the two second grinding rollers 601. The black wheat flour that meets the particle size requirement and falls between the second grinding roller 601 and the side wall of the opening 502 directly falls into the outer shell 2. Generally, the distance between the second grinding roller 601 and the side wall of the opening 502 is equal to the distance between the two second grinding rollers 601.

[0060] like Figure 1 to Figure 5 As shown, after the black wheat flour is processed by the secondary grinding component 6, it falls into the outer shell 2. A discharge pipe 201 is provided on one side of the outer shell 2. The discharge pipe 201 is the outlet of the black wheat flour, and the black wheat flour is generally extracted by negative pressure. When in use, the discharge pipe 201 is generally connected to a black wheat flour delivery pipeline, and the black wheat flour in the outer shell 2 is extracted by a material pump.

[0061] like Figures 1 to 12 As shown, a second cooling assembly 13 matching the sieve hole 401 is installed on the outer shell 2, and the second cooling assembly 13 is used to clean and prevent the sieve hole 401 from being blocked, and can cool the surface of the first grinding roller 3. Specifically, the second cooling assembly 13 includes an air source (not shown in the figure) and a nozzle 1302, and the nozzle 1302 is obliquely installed on the side wall of the sieve hole 401, and a gas delivery pipe 1301 is connected between the air source and the nozzle 1302. That is, the air source delivers the gas to the nozzle 1302 through the gas delivery pipe 1301, and the nozzle 1302 blows the gas out obliquely, blowing from the middle of the sieve hole 401 to the surface of the first grinding roller 3, and then blowing outwards through rebound, blowing away and blowing out the black wheat flour blocked in the sieve hole 401. The sieve hole 401 is unblocked while cooling the surface of the first grinding roller 3.

[0062] When the temperature on the surface of the first grinding roller 3 is too high and the first cooling assembly 7 cannot cool the first grinding roller 3 in a short time, the surface of the first grinding roller 3 can be cooled by the second cooling assembly 13, and the sieve hole 401 can be dredged at the same time. Different cooling effects can also be achieved according to the temperature of the blown air, so that the first grinding roller 3 is always kept within the cold grinding temperature required by the process, and the situation of excessive temperature causing nutrient loss of black wheat flour can be avoided as much as possible. Of course, when the sieve hole 401 is blocked and the first grinding roller 3 does not need to be cooled, the second cooling assembly 13 can also be dredged for the sieve hole 401. It is also possible to change the temperature of the gas transported by the gas source to ensure that the temperature of the gas used to dredge the sieve hole 401 does not have a serious impact on the surface temperature of the first grinding roller 3.

[0063] Preferably, a plurality of temperature sensing components may be arranged inside the cold grinding equipment, and the temperature sensing components may cooperate with the grinding components, the first cooling component 7, the second cooling component 13, and the guide tube 5 to control the temperature of the grinding components and the guide tube 5 during the grinding process of the grinding equipment, thereby ensuring that the grinding and drying of the grinding equipment during use can meet the process requirements.

[0064] When using, Figures 1 to 12 As shown, the black wheat is transported between the milling cylinder 4 and the first milling roller 3 through the feed pipe 12 in a negative pressure manner, the motor 8 is started, and the motor 8 cooperates with the second belt 10 to rotate the first milling roller 3, and the first cavity 301, the milling cylinder 4 and the black wheat are rubbed and crushed to complete the milling operation. During milling, the cooling pipeline 702 and the water tank 701 cooperate to transport cooling liquid into the first cavity 301, and the cooling liquid reduces the temperature of the first milling roller 3 during the milling process. When the temperature of the cooling liquid in the first cavity 301 reaches a certain level, the cooling liquid will be transported to the second cavity 501 by the first cooling component 7, and then transported back to the water tank 701 through the second cavity 501 for cooling. Part of the hot cooling liquid remains in the second cavity 501 to heat the guide cylinder 5. After the coolant in the first cavity 301 is pumped away, the cooling pipeline 702 and the water tank 701 continue to transport the cold coolant into the first cavity 301 , so that the coolant continues to cool the first grinding roller 3 .

[0065] The pressure between the first grinding roller 3 and the sieve hole 401 is greater than the pressure between the grinding cylinder 4 and the guide cylinder 5. The black wheat flour is ejected through the sieve hole 401 and contacts the guide cylinder 5. The guide cylinder 5 can block the black wheat flour and make the black wheat flour slide down along the inner wall of the guide cylinder 5. During the black wheat flour sliding down along the guide cylinder 5, the guide cylinder 5 and the black wheat flour exchange heat, making the black wheat flour dry, thereby improving the dryness of the black wheat flour. Until the black wheat flour slides to the secondary grinding component 6, the second grinding roller 601 is driven to rotate by the motor 8 and the first belt 9. The two second grinding rollers 601 rotate in opposite directions, and the black wheat flour with unqualified particle size can be secondary ground. During the secondary grinding process, the two second grinding rollers 601 have less contact time with the black wheat flour. Even if the temperature of the two second grinding rollers 601 is high, it is not easy to affect the nutritional components of the black wheat flour, so that the affected components of the black wheat are not easy to be denatured. At the same time, the black wheat flour can also be dried for a second time.

[0066] After passing through the secondary grinding assembly 6, the black wheat flour falls into the outer shell 2. The discharge pipe 201 on the outer shell 2 is connected to the black wheat flour conveying pipeline, and the black wheat flour is extracted by negative pressure. In the process of extracting the black wheat flour, the temperature inside the outer shell 2 can also be taken away, so that the temperature of the grinding equipment is reduced, which is conducive to the cold grinding of black wheat.

[0067] When the first cooling assembly 7 is in use, Figures 1 to 13 As shown, first, the coolant is transported from the water tank 701 to the first cavity 301 through the cold liquid delivery pipeline, the first grinding roller 3 performs grinding operation, the coolant exchanges heat with the first grinding roller 3, and when the temperature of the coolant reaches a certain level, the hot coolant is transported to the second cavity 501 through the hot liquid delivery pipeline. If there is too much hot coolant, the excess coolant is transported to the water tank 701 through the fifth connecting pipe 703 for cooling, completing the circulation of the coolant. The hot coolant in the second cavity 501 exchanges heat with the guide tube 5 to heat the guide tube 5. When the temperature of the hot coolant in the guide tube 5 drops to a certain level, the new hot coolant is transported to the guide tube 5 through the hot liquid delivery pipeline. Before that, the colder coolant is transported to the water tank 701 through the fifth connecting pipe 703 to ensure that the surface temperature of the guide tube 5 meets the process requirements.

[0068] The present invention can significantly reduce the temperature of the grinding component during the grinding process by providing a grinding component and a first cooling component 7, and ensure that the grinding component can be maintained within a certain temperature range, thereby avoiding severe heating of black wheat during the grinding process as much as possible, thereby avoiding denaturation and loss of components of black wheat flour due to severe heating of black wheat, avoiding the situation where the high temperature environment during the grinding process affects the taste of black wheat, improving the quality of black wheat, and helping to improve the reputation of manufacturers and the competitiveness of products.

[0069] The present invention arranges a guide tube 5. After the grinding component completes grinding, black wheat flour is sprayed onto the inner surface of the guide tube 5 through the grinding tube 4. The first cooling component 7 cooperates with the guide tube 5 to transport hot coolant into the guide tube 5 and exchange heat with the guide tube 5, so that the black wheat flour falling on the guide tube 5 can be dried, and the heat of the coolant is utilized, which saves energy and protects the environment while reducing the use cost of the grinding equipment during use.

[0070] The present invention provides a secondary grinding component 6 to perform secondary grinding on the black wheat flour ground by the grinding component, thereby ensuring the quality of the black wheat flour and ensuring that the particle size of the black wheat flour meets the requirements as much as possible.

[0071] The present invention cooperates with the motor 8, the first belt 9 and the second belt 10, and the secondary grinding assembly 6 and the grinding assembly are operated by one motor 8. When the motor 8 is damaged, it can be easily replaced, which greatly reduces the time required for disassembly and replacement of the motor 8, and reduces the economic losses caused to the manufacturer by the need for repair and disassembly of the damaged motor 8.

[0072] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0073] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A black wheat flour milling device, comprising a support, characterized in that: Also includes: An outer shell, the outer shell is fixedly connected to the upper end of the bracket; A grinding assembly, the grinding assembly comprising a first grinding roller and a grinding cylinder, the first grinding roller is rotatably connected to the inside of the grinding cylinder, the grinding cylinder is integrally formed inside the outer shell, and the grinding cylinder is provided with a plurality of evenly distributed sieve holes; a first cooling component, the first cooling component is used to cool the grinding component; The first grinding roller has a plurality of grinding convex parts for grinding, the first grinding roller is provided with a plurality of first cavities matching the grinding convex parts, and the first cooling component is used for conveying cooling liquid into the first cavities to cool the grinding convex parts; The first cooling assembly includes a water tank and a cooling pipeline, the coolant is filled in the water tank, and the cooling pipeline is used to transport the coolant in the water tank to the first cavity; The cooling pipeline comprises a rotary joint, the rotary joint is mounted on the rotating shaft of the first grinding roller, a second multi-way joint is mounted on one end of the rotary joint, and a third connecting pipe is connected between the second multi-way joint and the water tank; A first multi-way connector is installed at one end of the rotary connector away from the second multi-way connector, and a plurality of groups of infusion tubes matching the first cavity are installed on the first multi-way connector; The infusion tube includes a first connecting tube and a second connecting tube installed on the first connecting tube, the third connecting tube, the second multi-way joint, the rotary joint, the first multi-way joint and the first connecting tube form a cold liquid delivery pipeline, and the second connecting tube, the first connecting tube, the first multi-way joint, the rotary joint, the second multi-way joint and the fourth connecting tube form a hot liquid delivery pipeline; A guide cylinder is installed between the grinding assembly and the outer shell, the lower end of the guide cylinder is provided with an opening, and a secondary grinding assembly matching the opening is installed on one side wall of the outer shell, and the secondary grinding assembly is used to realize secondary grinding; A second cavity is provided inside the guide tube, and a fourth connecting pipe is connected between the second cavity and the second multi-way connector; A fifth connecting pipe is connected between the second cavity and the water tank; The secondary grinding assembly comprises two second grinding rollers, one of which is provided with a connecting rod; The connecting rod drives a second grinding roller to rotate, and the two second grinding rollers are both provided with a first gear, and the two first gears are meshed. When the motor is started, the two second grinding rollers can rotate in relative directions.

2. The black wheat milling equipment according to claim 1, characterized in that: The distance between the two second grinding rollers is not greater than the aperture of the sieve hole, and the distance between the second grinding roller and the side wall of the opening is not greater than the distance between the two second grinding rollers.

3. The black wheat milling equipment according to claim 1, characterized in that: A second cooling assembly matching the sieve hole is installed on the outer shell; The second cooling assembly comprises an air source and a nozzle. The nozzle is obliquely mounted on the side wall of the sieve hole. A gas delivery pipe is connected between the air source and the nozzle.

4. The black wheat milling equipment according to claim 1, characterized in that: A feeding pipe for feeding materials to the grinding assembly is installed on the outer shell, and a discharging pipe for discharging materials is arranged at one end of the outer shell.

5. The black wheat milling equipment according to claim 1, characterized in that: A groove is formed between adjacent grinding protrusions, and the height of the groove is lower than the height of the top of the grinding protrusion.

Images