Kawasaki honey cake premixed flour preparation device and method

Abstract

The invention relates to the technical field of premixed flour preparation devices, and discloses a Kawasaki honey cake premixed flour preparation device and method.The Kawasaki honey cake premixed flour preparation device comprises a grinding box, a cover plate is fixedly installed at the top end of the grinding box, two grinding grooves are formed in the position, close to the top end of the grinding box, of the interior of the grinding box, and each grinding groove is of a funnel-shaped structure; and a first grinding roller and a second grinding roller which are matched with the grinding groove are rotationally mounted on the lower surface of the cover plate correspondingly. When one of the grinding rollers carries out grinding operation, the second grinding roller drives fan blades to rotate through a second belt wheel and a second belt, so that the fan blades blow external air into a grinding groove which does not carry out grinding operation through a communicating pipe which is communicated with an air inlet hole and a communicating groove; and raw material powder adhered to the surfaces of the grinding groove and the grinding roller which do not participate in grinding operation is blown and cleaned, so that the grinding effect is prevented from being influenced after more raw material powder is adhered to the surfaces of the grinding groove and the grinding roller.

Description

Technical Field

[0001] The invention relates to the technical field of premixed powder preparation devices, and in particular to a premixed powder preparation device and method for Nagasaki honey cake. Background Art

[0002] Nagasaki cake has a dark brown crispy crust and a creamy yellow moist interior. Its delicate, sweet, soft and moist taste and flavor are unforgettable to consumers. Premix powder is a compound semi-finished product sold as a baking ingredient by mixing some raw and auxiliary materials in a certain ratio. It has a certain professional and technical content and integrates high-tech knowledge such as biology, physics and chemistry. The emergence of premix powder makes the preparation of baked products very convenient and simplifies the production of baked products. You only need to add the liquid part and mix it evenly with the premix powder. The use of premix powder reduces the professionalism, technicality and failure rate of baking product production. Since cake premix powder contains some fine or granular raw materials, it usually needs to be further ground to ensure the uniform distribution of the ingredients and avoid the large particles of ingredients affecting the texture of the final product.

[0003] An existing grinding device for powder food production (Announcement No.: CN218924900U) has at least the following disadvantages: the above patent grinds the powder food by a rotating grinding disc; since the grinding disc grinds the powder food for a long time, the surface of the grinding disc is easily adhered to the food powder, thereby affecting the grinding effect of the powder food. Summary of the invention

[0004] The purpose of the invention is to solve the shortcomings in the prior art and to propose a device and method for preparing a Nagasaki honey cake premix.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A Nagasaki honey cake premix preparation device comprises a grinding box, a cover plate is fixedly installed on the top of the grinding box, two grinding grooves are arranged inside the grinding box near the top of the grinding box, the grinding grooves are funnel-shaped structures, a first grinding roller and a second grinding roller matching the grinding grooves are rotatably installed on the lower surface of the cover plate, the first grinding roller and the second grinding roller are respectively inserted in the two grinding grooves, two support plates are symmetrically fixedly installed on the top of the cover plate, a feeding hopper is fixedly installed between the tops of the two support plates, and a feeding mechanism is installed between the feeding hopper and the top of the cover plate.

[0006] As a further solution of the present invention, the feeding mechanism includes a cover shell fixedly installed on the top of the cover plate, and a three-way pipe is fixedly installed on the discharge end of the feed hopper. Two discharge ends of the three-way pipe pass through and are fixedly installed on the top of the cover shell. Two feed holes connected to the grinding groove are respectively penetrated on the upper surface of the cover plate. The two feed holes are arranged inside the cover shell, and the two feed holes correspond to the two discharge ends of the three-way pipe. A switching component is installed inside the cover shell.

[0007] As a further solution of the present invention, the switching component includes a turntable rotatably installed inside the cover shell, and six conducting holes are equidistantly opened through the upper surface of the turntable in the circumferential direction, wherein sealing plates are fixedly installed on the inner walls of three of the conducting holes, and the three sealing plates are arranged with a conducting hole between them, and an intermittent rotation component is installed between the turntable and the first grinding roller.

[0008] As a further solution of the present invention, the intermittent rotation component includes an active dial and a driven groove wheel rotatably mounted on the top of the cover shell and adapted to each other, the rotation center of the driven groove wheel is fixedly mounted on the rotation center of the turntable, the rotation centers of the active dial and the first grinding roller are both fixedly mounted with a first pulley, and the outer surfaces of the two first pulleys are provided with a first belt.

[0009] As a further solution of the present invention, a cleaning mechanism for blowing air into the grinding tank is installed at the top of the cover plate, and the cleaning mechanism includes a cover cylinder fixedly installed on the upper surface of the cover plate, and a plurality of air holes are evenly penetrated through the top of the cover cylinder, and a fan blade is rotatably installed on the top wall of the cover cylinder, and two connecting pipes that are connected to each other are fixedly installed between the cover cylinder and the cover shell, and an air inlet hole is penetrated through the upper surface of the cover plate near the air outlet end of the connecting pipe, and the air inlet hole is connected with the interior of the grinding tank, a conducting component is installed between the turntable and the connecting pipe, and a transmission component is installed between the fan blade and the second grinding roller.

[0010] As a further solution of the present invention, the conduction component includes three conduction grooves equidistantly arranged on the outer circumference of the turntable, and the three conduction grooves are intermittently connected to one of the connecting pipes at a time.

[0011] As a further solution of the present invention, the transmission assembly includes two second pulleys fixedly mounted on the fan blade and the rotation center of the second grinding roller respectively, and the outer surfaces of the two second pulleys are sleeved with second belts.

[0012] As a further solution of the present invention, the bottom of the grinding box is a hollow structure, a collecting box is placed at the bottom of the grinding box, a partition plate is fixedly installed on the inner wall of the collecting box, and an exhaust filter element is fixedly installed through the outer side wall of the top of the collecting box.

[0013] As a further solution of the present invention, two door-shaped plates are fixedly installed on the top of the cover plate, and stepper motors are fixedly installed on the top of the two door-shaped plates. The output ends of the two stepper motors are respectively fixedly installed on the rotation centers of the first grinding roller and the second grinding roller.

[0014] A method for preparing Nagasaki honey cake premix powder comprises the following steps: S1: prepare the following raw materials: 40-50 parts of wheat flour, 40-50 parts of white sugar, 5-10 parts of sorbitol, 1-5 parts of egg yolk powder, 1-5 parts of hydroxypropyl distarch phosphate, 1-5 parts of maltodextrin, 0-3 parts of anhydrous citric acid, 0-3 parts of sodium carboxymethyl cellulose, 0-5 parts of mono- and di-glycerol fatty acid esters, 0-0.1 parts of β-carotene, and 0-1 parts of food flavoring; S2: putting the raw materials into a feed hopper, and grinding the raw material powder by a first grinding roller and a second grinding roller; S3: uniformly mix the above raw materials at a mixing speed of 40 to 50 r / min for a mixing time of 10 to 30 min; S4: Mix the above raw materials at a medium speed, and the mixing speed is controlled at 40-50r / min.

[0015] The beneficial effects of the present invention are: 1. Through further grinding of the raw material powder, the raw material powder is made finer, ensuring the uniform distribution of the raw material powder components and avoiding the components with larger particles affecting the texture of the final product; 2. When one of the grinding rollers is grinding, the second grinding roller will drive the fan blades to rotate through the second pulley and the second belt, so that the fan blades blow the outside air into the grinding groove that is not grinding through the connecting pipe that is mutually conductive with the air inlet and the conducting groove, and blow and clean the raw material powder adhering to the surface of the grinding groove and the grinding roller that are not involved in the grinding operation, so as to avoid the grinding effect being affected by the excessive raw material powder adhering to the surface of the grinding groove and the grinding roller; 3. When the first grinding roller rotates, the active dial is driven to rotate through the first pulley and the first belt, so that the active dial can intermittently drive the driven groove wheel to rotate 60°, so that the driven groove wheel can drive the turntable to rotate 60° accordingly, so that the conducting hole opened on the turntable is connected to another grinding groove that is not involved in the grinding operation, so that the raw material powder enters the other grinding groove for grinding operation, avoiding always using one grinding groove and grinding roller for grinding operation to affect the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a device for preparing premixed powder for Nagasaki honey cake proposed by the present invention; Figure 2This is a schematic cross-sectional view of a device for preparing premixed powder for Nagasaki honey cake proposed by the present invention; Figure 3 This is a schematic diagram of the top structure of a cover plate of a Nagasaki honey cake premix preparation device proposed by the present invention; Figure 4 This is a schematic diagram of a partial structural disassembly state of a Nagasaki honey cake premix powder preparation device proposed by the present invention; Figure 5 A schematic diagram of the bottom structure of a turntable of a Nagasaki honey cake premix preparation device proposed by the present invention; Figure 6 A schematic diagram of the structure of a collecting box of a Nagasaki honey cake premix preparation device proposed by the present invention; Figure 7 for Figure 3 A magnified view of the structure in the middle.

[0017] In the figure: 1. grinding box; 2. cover plate; 3. grinding groove; 4. first grinding roller; 5. second grinding roller; 6. door plate; 7. stepping motor; 8. cover shell; 9. feed hole; 10. three-way pipe; 11. support plate; 12. feed hopper; 13. turntable; 14. conducting hole; 15. sealing plate; 16. driven groove wheel; 17. active dial; 18. first pulley; 19. first belt; 20. cover cylinder; 21. connecting pipe; 22. air inlet; 23. conducting groove; 24. fan blade; 25. second pulley; 26. second belt; 27. collecting box; 28. partition plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely 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, rather than all the embodiments.

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] Refer to the attached Figure 1 -Attached Figure 7A Nagasaki honey cake premix powder preparation device comprises a grinding box 1, a cover plate 2 is fixedly installed on the top of the grinding box 1, two grinding grooves 3 are arranged inside the grinding box 1 near the top, the grinding grooves 3 are funnel-shaped structures, a first grinding roller 4 and a second grinding roller 5 matching the grinding grooves 3 are rotatably installed on the lower surface of the cover plate 2, the first grinding roller 4 and the second grinding roller 5 are respectively inserted into the two grinding grooves 3, two support plates 11 are symmetrically fixedly installed on the top of the cover plate 2, a feed hopper 12 is fixedly installed between the tops of the two support plates 11, and a feed hopper 12 is installed between the feed hopper 12 and the top of the cover plate 2. There is a feeding mechanism. The bottom of the grinding box 1 is a hollow structure. A collecting box 27 is placed at the bottom of the grinding box 1. A partition plate 28 is fixedly installed on the inner wall of the collecting box 27. An exhaust filter is fixedly installed through the outer side wall of the top of the collecting box 27. The excess air in the collecting box 27 can be discharged through the exhaust filter, and at the same time, it is ensured that the raw material powder in the collecting box 27 does not escape. Two door-shaped plates 6 are fixedly installed on the top of the cover plate 2. Stepper motors 7 are fixedly installed on the top of the two door-shaped plates 6. The output ends of the two stepper motors 7 are fixedly installed with the rotation centers of the first grinding roller 4 and the second grinding roller 5 respectively.

[0021] In this embodiment, the feeding mechanism includes a cover shell 8 fixedly installed on the top of the cover plate 2, and a three-way pipe 10 is fixedly installed on the discharge end of the feed hopper 12. Two discharge ends of the three-way pipe 10 pass through and are fixedly installed on the top of the cover shell 8. The upper surface of the cover plate 2 is respectively penetrated with two feed holes 9 connected to the grinding groove 3. The two feed holes 9 are arranged inside the cover shell 8, and the two feed holes 9 correspond to the two discharge ends of the three-way pipe 10. A switching component is installed inside the cover shell 8.

[0022] When in use, the raw material powder is introduced into the feed hopper 12, and enters one of the grinding grooves 3 through one of the discharge ends of the three-way pipe 10 that is mutually connected with the conducting hole 14 and the feed hole 9. The first grinding roller 4 and the second grinding roller 5 are driven to rotate simultaneously by two stepper motors 7, so that the first grinding roller 4 and the second grinding roller 5 can grind the raw material powder entering the grinding groove 3, and the ground raw material powder falls into the collection box 27 for collection.

[0023] In this embodiment, the switching component includes a turntable 13 rotatably installed inside the cover shell 8, and six conducting holes 14 are equidistantly opened through the upper surface of the turntable 13 in the circumferential direction, wherein the inner walls of three of the conducting holes 14 are fixedly installed with sealing plates 15, and the three sealing plates 15 are arranged with one conducting hole 14 between them, and an intermittent rotation component is installed between the turntable 13 and the first grinding roller 4.

[0024] When one of the conducting holes 14 connects one of the discharge ends of the three-way pipe 10 with the feed hole 9, a corresponding sealing plate 15 will block the other discharge end of the three-way pipe 10, so that only a single grinding tank 3 is fed for grinding at a time.

[0025] In this embodiment, the intermittent rotation component includes an active dial 17 and a driven groove wheel 16 that are rotatably mounted on the top of the cover shell 8 and adapt to each other. The rotation center of the driven groove wheel 16 is fixedly mounted with the rotation center of the turntable 13. The active dial 17 and the rotation center of the first grinding roller 4 are both fixedly mounted with a first pulley 18, and the outer surfaces of the two first pulleys 18 are provided with a first belt 19.

[0026] When the first grinding roller 4 rotates, the active dial 17 will be driven to rotate through the first pulley 18 and the first belt 19, so that the active dial 17 can intermittently drive the driven groove wheel 16 to rotate 60°, so that the driven groove wheel 16 can drive the turntable 13 to rotate 60° accordingly, so that the conducting hole 14 opened on the turntable 13 is connected to another grinding groove 3 that is not involved in the grinding operation, so that the raw material powder enters the other grinding groove 3 for grinding operation, so as to avoid always using one grinding groove 3 and grinding roller for grinding operation to affect the grinding effect.

[0027] In this embodiment, a cleaning mechanism for blowing air into the grinding tank 3 is installed at the top of the cover plate 2, and the cleaning mechanism includes a cover cylinder 20 fixedly installed on the upper surface of the cover plate 2, and a plurality of ventilation holes are evenly penetrated through the top of the cover cylinder 20. A fan blade 24 is rotatably installed on the top wall of the cover cylinder 20, and two mutually conductive connecting pipes 21 are fixedly installed between the cover cylinder 20 and the cover shell 8. An air inlet hole 22 is penetrated through the upper surface of the cover plate 2 near the air outlet end of the connecting pipe 21, and the air inlet hole 22 is connected with the inside of the grinding tank 3. A conduction component is installed between the turntable 13 and the connecting pipe 21, and a transmission component is installed between the fan blade 24 and the second grinding roller 5. The conduction component includes three conduction grooves 23 equidistantly opened on the outer periphery of the turntable 13, and the three conduction grooves 23 are mutually conductive with one of the connecting pipes 21 at a single intermittent time. The transmission component includes two second pulleys 25 fixedly installed at the rotation centers of the fan blade 24 and the second grinding roller 5, respectively, and the outer surfaces of the two second pulleys 25 are sleeved with second belts 26.

[0028] When one of the grinding rollers is performing the grinding operation, the second grinding roller 5 will drive the fan blades 24 to rotate through the second pulley 25 and the second belt 26, so that the fan blades 24 blow the outside air into the grinding groove 3 that is not in the grinding operation through the connecting pipe 21 that is mutually conductive with the air inlet hole 22 and the conducting groove 23, and blow and clean the raw material powder adhered to the surface of the grinding groove 3 and the grinding roller 5 that are not involved in the grinding operation, so as to avoid the grinding effect being affected by the large amount of raw material powder adhered to the grinding groove 3 and the surface of the grinding roller.

[0029] The raw material ratio of Nagasaki honey cake premix is: 40-50 parts of wheat flour, 40-50 parts of white sugar, 5-10 parts of sorbitol, 1-5 parts of egg yolk powder, 1-5 parts of hydroxypropyl distarch phosphate, 1-5 parts of maltodextrin, 0-3 parts of anhydrous citric acid, 0-3 parts of sodium carboxymethyl cellulose, 0-5 parts of mono- and diglycerol fatty acid esters, 0-0.1 parts of β-carotene, and 0-1 parts of food flavoring.

[0030] The raw materials are placed in a feed hopper 12 and the raw material powder is ground; The above raw materials are uniformly mixed at a mixing speed of 40 to 50 r / min and a mixing time of 10 to 30 min; The above raw materials are mixed at a medium speed, and the mixing speed is controlled at 40-50r / min. Using medium-speed mixing for a longer time is beneficial to improving the uniformity of mixing between the raw materials. Evenly mixing the premixed powder is beneficial to providing good stability.

[0031] The application of Nagasaki honey cake premix includes the following steps: S1: Mix the Nagasaki honey cake premix with whole egg liquid, milk, honey, fructose syrup, soybean oil, etc., and then add cake oil to beat the mixture; S2: The raw material ratio in the application formula is: 30-40 parts of Nagasaki honey cake premix, 35-45 parts of egg liquid, 5-10 parts of milk, 0-5 parts of honey, and 5-10 parts of fructose syrup; S3: Baking temperature: top fire 180~200℃, bottom fire temperature 120~150℃, baking time 25~35min.

[0032] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: when in use, the raw material powder is introduced into the feed hopper 12, so that the raw material powder enters one of the grinding grooves 3 through one of the discharge ends of the three-way pipe 10 that is mutually conductive with the conducting hole 14 and the feed hole 9, and the first grinding roller 4 and the second grinding roller 5 are driven to rotate by two stepping motors 7 at the same time, so that the first grinding roller 4 and the second grinding roller 5 can grind the raw material powder entering the grinding groove 3, and the ground raw material powder falls into the collection box 27 for collection. Through further grinding operation, the raw material powder is made finer, ensuring the uniform distribution of the raw material powder components, and avoiding the components with larger particles from affecting the texture of the final product; When one of the grinding rollers is in the grinding operation, the second grinding roller 5 will drive the fan blade 24 to rotate through the second pulley 25 and the second belt 26, so that the fan blade 24 blows the outside air into the grinding groove 3 that is not in the grinding operation through the connecting pipe 21 that is mutually conductive with the air inlet 22 and the conducting groove 23, and blows and cleans the raw material powder adhered to the surface of the grinding groove 3 and the grinding roller 5 that are not involved in the grinding operation, so as to avoid the grinding effect being affected by the raw material powder adhered to the surface of the grinding groove 3 and the grinding roller; When the first grinding roller 4 rotates, the active dial 17 will be driven to rotate through the first pulley 18 and the first belt 19, so that the active dial 17 can intermittently drive the driven groove wheel 16 to rotate 60°, so that the driven groove wheel 16 can drive the turntable 13 to rotate 60° accordingly, so that the conducting hole 14 opened on the turntable 13 is connected to another grinding groove 3 that is not involved in the grinding operation, so that the raw material powder enters the other grinding groove 3 for grinding operation, so as to avoid always using one grinding groove 3 and grinding roller for grinding operation to affect the grinding effect.

[0033] 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 device for preparing Nagasaki honey cake premix, comprising a grinding box (1), a cover plate (2) being fixedly mounted on the top of the grinding box (1), characterized in that: The grinding box (1) is provided with two grinding grooves (3) near its top, the grinding grooves (3) being of a funnel-shaped structure, a first grinding roller (4) and a second grinding roller (5) matching the grinding grooves (3) being rotatably mounted on the lower surface of the cover plate (2), the first grinding roller (4) and the second grinding roller (5) being inserted into the two grinding grooves (3) respectively, two support plates (11) being symmetrically fixedly mounted on the top of the cover plate (2), a feed hopper (12) being fixedly mounted between the tops of the two support plates (11), and a feed mechanism being mounted between the feed hopper (12) and the top of the cover plate (2).

2. A Nagasaki honey cake premix preparation device according to claim 1, characterized in that: The feeding mechanism comprises a cover shell (8) fixedly mounted on the top of the cover plate (2); a three-way pipe (10) is fixedly mounted on the discharge end of the feed hopper (12); two discharge ends of the three-way pipe (10) penetrate and are fixedly mounted on the top of the cover shell (8); two feeding holes (9) connected to the grinding groove (3) are respectively penetrated on the upper surface of the cover plate (2); the two feeding holes (9) are arranged inside the cover shell (8), and the two feeding holes (9) correspond to the two discharge ends of the three-way pipe (10); and a switching component is installed inside the cover shell (8).

3. A Nagasaki honey cake premix preparation device according to claim 2, characterized in that: The switching assembly comprises a rotating disk (13) rotatably mounted inside the housing (8), the upper surface of the rotating disk (13) being provided with six conducting holes (14) equidistantly penetrated in the circumferential direction, wherein inner walls of three of the conducting holes (14) are fixedly mounted with sealing plates (15), and the three sealing plates (15) are arranged with one conducting hole (14) between them, and an intermittent rotating assembly is installed between the rotating disk (13) and the first grinding roller (4).

4. A Nagasaki honey cake premix preparation device according to claim 3, characterized in that: The intermittent rotation assembly comprises an active dial (17) and a driven groove wheel (16) which are rotatably mounted on the top of the cover shell (8) and are adapted to each other. The rotation center of the driven groove wheel (16) is fixedly mounted to the rotation center of the turntable (13). The active dial (17) and the rotation center of the first grinding roller (4) are both fixedly mounted with a first pulley (18). The outer surfaces of the two first pulleys (18) are sleeved with a first belt (19).

5. A Nagasaki honey cake premix preparation device according to claim 4, characterized in that: A cleaning mechanism for blowing air into the grinding tank (3) is installed at the top of the cover plate (2), the cleaning mechanism comprising a cover tube (20) fixedly installed on the upper surface of the cover plate (2), a plurality of ventilation holes being evenly penetrated through the top of the cover tube (20), a fan blade (24) being rotatably installed on the top wall of the cover tube (20), two mutually conductive connecting pipes (21) being fixedly installed between the cover tube (20) and the cover shell (8), an air inlet hole (22) being penetrated through the upper surface of the cover plate (2) near the air outlet end of the connecting pipe (21), the air inlet hole (22) being connected to the inside of the grinding tank (3), a conducting component being installed between the turntable (13) and the connecting pipe (21), and a transmission component being installed between the fan blade (24) and the second grinding roller (5).

6. A Nagasaki honey cake premix preparation device according to claim 5, characterized in that: The conduction component comprises three conduction grooves (23) equidistantly arranged on the outer circumference of the rotating disk (13), and the three conduction grooves (23) are intermittently connected to one of the connecting pipes (21) at a time.

7. A Nagasaki honey cake premix preparation device according to claim 6, characterized in that: The transmission assembly comprises two second pulleys (25) respectively fixedly mounted on the fan blade (24) and the rotation center of the second grinding roller (5), and the outer surfaces of the two second pulleys (25) are sleeved with second belts (26).

8. A Nagasaki honey cake premix preparation device according to claim 1, characterized in that: The bottom of the grinding box (1) is a hollow structure. A collecting box (27) is placed at the bottom of the grinding box (1). A partition plate (28) is fixedly mounted on the inner wall of the collecting box (27). An exhaust filter element is fixedly mounted through the outer side wall of the top of the collecting box (27).

9. A Nagasaki honey cake premix preparation device according to claim 1, characterized in that: Two door-shaped plates (6) are fixedly mounted on the top of the cover plate (2), and stepper motors (7) are fixedly mounted on the tops of the two door-shaped plates (6), and the output ends of the two stepper motors (7) are fixedly mounted on the rotation centers of the first grinding roller (4) and the second grinding roller (5), respectively.

10. A method for preparing Nagasaki honey cake premix, characterized in that: The device for preparing Nagasaki honey cake premix according to any one of claims 1 to 9 comprises the following steps: S1: prepare the following raw materials: 40-50 parts of wheat flour, 40-50 parts of white sugar, 5-10 parts of sorbitol, 1-5 parts of egg yolk powder, 1-5 parts of hydroxypropyl distarch phosphate, 1-5 parts of maltodextrin, 0-3 parts of anhydrous citric acid, 0-3 parts of sodium carboxymethyl cellulose, 0-5 parts of mono- and di-glycerol fatty acid esters, 0-0.1 parts of β-carotene, and 0-1 parts of food flavoring; S2: placing the raw material into a feed hopper (12), and grinding the raw material powder by a first grinding roller (4) and a second grinding roller (5); S3: uniformly mix the above raw materials at a mixing speed of 40 to 50 r / min for a mixing time of 10 to 30 min; S4: Mix the above raw materials at a medium speed, and the mixing speed is controlled at 40-50r / min.

Images