Kiwi fruit powder preparation device and method

Abstract

The invention relates to the field of grinding, in particular to a kiwi fruit powder preparation device and method.The lower portion of a coarse grinding mechanism is connected with a fine grinding mechanism, the lower portion of the fine grinding mechanism is connected with a material collecting groove, the fine grinding mechanism comprises a fine grinding shell, a supporting plate is fixedly installed in the fine grinding shell, and a grinding groove is formed in the supporting plate; a grinding roller matched with the grinding groove is arranged in the grinding groove, a cooling cavity is formed between the grinding groove and the inner wall of the fine grinding shell, and a liquid injection pipe and a liquid discharge pipe which are communicated with the cooling cavity are arranged on the outer side of the fine grinding shell; and by arranging the liquid injection pipe, the cooling cavity and the liquid discharge pipe, cooling water circularly flows in the cooling cavity, and therefore the cooling efficiency of the grinding groove, the grinding roller and the ground materials is further improved.

Description

Technical Field

[0001] The invention relates to the field of grinding, and in particular to a device and method for preparing kiwi fruit powder. Background Art

[0002] Kiwi fruit is soft and has a sweet and sour taste. Kiwi fruit contains a variety of nutrients and is known as the "king of fruits". It is rich in vitamin C. Since kiwi fruit is very easy to become soft and rot after harvest, causing waste and environmental pollution, people usually process kiwi fruit to improve its storage resistance. Kiwi fruit is processed by modern technology to make kiwi fruit powder, which has the advantages of being easy to carry and take and has an excellent taste.

[0003] In the prior art, the invention patent with application number CN201910943402.8 discloses a powder making machine for preparing kiwi fruit powder. The powder making mechanism includes a powder making box and a powder making cylinder. The powder making cylinder includes, from top to bottom, an assembled fine grinding roller, a motor mounting cylinder and a discharge cylinder. The upper end of the powder making box has an input port, which is connected to the upper end of the elevator. A circulating feed hopper is fixed at the lower end of the elevator. The lower end of the powder making box has an output port, which is connected to the upper end of the assembled fine grinding roller. The circulating feed hopper is located directly below the discharge cylinder. A bracket is also fixed to the lower end of the powder making box, which has the advantage of high powder making efficiency.

[0004] When the above-mentioned milling machine grinds dried kiwifruit, the internal three-time grinding equipment can be cooled by air through the negative pressure fan. However, the cooling method using only the negative pressure fan is relatively simple and cannot achieve an efficient cooling effect, which can easily cause the grinding equipment to overheat, resulting in a reduction in equipment life and oxidation and deterioration of the material. Summary of the invention

[0005] The object of the present invention is to provide a kiwi fruit powder preparation device and method, which has a better cooling effect on the grinding mechanism, so as to solve the defects mentioned in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The discharging outlet reaches the bottom of the discharging outlet, and the discharging outlet reaches the bottom of the discharging outlet, and the discharging outlet reaches the bottom of the discharging outlet. The discharging outlet reaches the bottom of the discharging outlet, and the discharging outlet reaches the bottom of the discharging outlet. The discharging outlet reaches the bottom of the discharging outlet.

[0008] As a preferred technical solution, the cooling cavity is arranged around the grinding groove.

[0009] As a preferred technical solution, the grinding groove is in an inverted cone shape; the grinding roller is provided with a positive cone located at the upper end and an inverted cone located at the lower end of the positive cone, the grinding roller is coaxially arranged with the grinding groove, a grinding channel is provided between the inverted cone and the inner wall of the grinding groove, and the grinding roller is driven by a power device and rotates around its own axis.

[0010] As a preferred technical solution, the inverted conical body is provided with a first inverted conical portion and a second inverted conical portion with different tapers, the first inverted conical portion is located below the second inverted conical portion, the taper of the first inverted conical portion is consistent with the taper of the grinding groove, and the taper of the second inverted conical portion is smaller than the taper of the grinding groove.

[0011] As a preferred technical solution, a coaxially arranged support shaft is fixedly installed on the lower end of the grinding roller, and a rotating tube coaxially arranged with the support shaft is rotatably installed on the material receiving trough. The rotating tube is driven by the power device and rotates around its own axis. A polygonal columnar sliding rod is coaxially provided at the lower end of the support shaft, and the sliding rod is vertically slidably installed in the rotating tube.

[0012] As a preferred technical solution, a horizontal axis driven by a power motor is provided under the rotating tube, a cam is fixedly installed on the horizontal axis, and a driven wheel matching the cam is installed at the lower end of the slide rod; a spring for pushing the grinding roller downward is provided in the grinding shell.

[0013] As a preferred technical solution, the rough grinding mechanism includes a rough grinding shell, a feed port is provided at the upper end of the rough grinding shell, two parallel rough grinding rollers are rotatably installed in the rough grinding shell, one of the rough grinding rollers is driven to rotate by a rough grinding motor, the two rough grinding rollers are connected by a gear pair, and the two rough grinding rollers rotate in opposite directions.

[0014] As a preferred technical solution, the outer side of the rough grinding roller is provided with convex strips extending along the length direction thereof, and a plurality of the convex strips are evenly spaced around the circumference of the rough grinding roller.

[0015] As a preferred technical solution, a material guide plate for guiding the material between the two rough grinding rollers is fixedly installed in the rough grinding shell located above the rough grinding roller.

[0016] A method for preparing kiwi fruit powder using the kiwi fruit powder preparation device, the feature comprising the following steps:

[0017] S1, preliminarily crushing the dried kiwi fruit by the rough grinding mechanism;

[0018] S2, further grinding and crushing the material obtained in S1 by the grinding mechanism;

[0019] S3, collecting the material obtained in S2 through the material receiving trough;

[0020] The qualified grinding materials are sucked away by the negative pressure fan;

[0021] The material that fails to meet the grinding standards is transported to the fine grinding mechanism through the material elevator for secondary grinding.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. By setting up the injection pipe, cooling chamber and drainage pipe, the cooling water circulates in the cooling chamber, thereby further improving the cooling efficiency of the grinding tank, grinding roller and the ground material, greatly extending the service life of the equipment, avoiding the material from being heated and oxidized during the grinding process, and improving the processing quality of the product;

[0024] 2. When the grinding roller rotates to grind the material, the grinding roller is driven to move up and down by the cam. When the grinding roller moves down, it drives the first inverted cone and the inner wall of the grinding groove to squeeze the material in the grinding channel, thereby improving the grinding effect of the material;

[0025] 3. The unqualified materials are transported back to the fine grinding mechanism for secondary grinding through the material elevator to ensure the grinding quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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 of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0028] Figure 2 is a cross-sectional schematic diagram of an embodiment of the invention;

[0029] Figure 3 is a schematic structural diagram of a rough grinding mechanism according to an embodiment of the present invention;

[0030] Figure 4 is a schematic top view of a rough grinding mechanism according to an embodiment of the present invention;

[0031] Figure 5 is a schematic structural diagram of a lapping mechanism according to an embodiment of the present invention;

[0032] Figure 6 It is a schematic structural diagram of a material receiving trough according to an embodiment of the present invention;

[0033] Figure 7 is a left side schematic diagram of a cam according to an embodiment of the present invention;

[0034] Figure 8 The present invention is a flowchart of a method for preparing kiwi fruit powder according to an embodiment of the present invention.

[0035] In the figure: 1-rough grinding mechanism; 2-fine grinding mechanism; 3-material collecting trough; 4-support leg; 5-bottom plate; 6-air outlet pipe; 7-filter screen; 8-discharge pipe; 9-material elevator; 10-fine grinding shell; 11-return pipe; 12-support plate; 13-grinding trough; 14-discharge hole; 15-grinding roller; 16-cooling chamber; 17-liquid injection pipe; 18-discharge pipe; 19-positive cone; 20-inverted cone; 21-grinding channel; 22-first inverted cone portion; 23-second inverted cone portion; 24-shaft sleeve; 25 -support shaft; 26-rotating tube; 27-sliding rod; 28-fine grinding motor; 29-belt; 30-cam; 31-driven wheel; 32-spring; 33-positioning shaft; 34-positioning seat; 35-positioning groove; 36-rough grinding shell; 37-feeding port; 38-rough grinding roller; 39-rough grinding motor; 40-cover; 41-first gear; 42-second gear; 43-third gear; 44-fourth gear; 45-feeding elevator; 46-guide plate; 47-frame; 48-horizontal axis; 49-power motor. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] like Figures 1 to 7 As shown, a kiwi powder preparation device includes a coarse grinding mechanism 1, a fine grinding mechanism 2 is connected below the coarse grinding mechanism 1, a material receiving trough 3 is connected below the fine grinding mechanism 2, a support leg 4 is welded to the bottom of the material receiving trough 3, and the support leg 4 is fixed to the bottom plate 5 by bolts.

[0038] like Figure 1 and Figure 6 As shown, an air outlet pipe 6 is provided on the left side of the top of the receiving trough 3, and the air outlet pipe 6 is connected to a negative pressure fan so that the powdered materials that have been ground and have passed the test and have fallen into the receiving trough 3 can be sucked away by the negative pressure fan; when the negative pressure fan is working, it can accelerate the circulation of air in the rough grinding mechanism 1, the fine grinding mechanism 2 and the receiving trough 3, and play a certain heat dissipation effect in the process of grinding the materials. In addition, a filter screen 7 covering the end of the air outlet pipe 6 is fixedly installed on the inner side of the left side wall of the receiving trough 3 by bolts, which plays a screening role for the materials and prevents large pieces of materials from being sucked into the air outlet pipe 6. A downwardly extending discharge pipe 8 is provided on the right side of the bottom of the receiving trough 3, and the lower end of the discharge pipe 8 is connected to the feed end of the material hoist 9 by bolts. The unqualified materials that have fallen into the receiving trough 3 will gather at the bottom of the receiving trough 3, enter the material hoist 9 through the discharge pipe 8, and the unqualified materials will be transported to the fine grinding mechanism 2 for secondary grinding by the material hoist 9. In addition, the bottom wall of the material receiving trough 3 is inclined and lowered toward the upper end of the discharge pipe 8 , which is conducive to the material in the material receiving trough 3 converging to the discharge pipe 8 .

[0039] The discharge end of the material hoist 9 is connected to the grinding mechanism 2; Figure 2 and Figure 5As shown, the lapping mechanism 2 includes a lapping shell 10, which is in the shape of a vertically extending straight cylinder. The upper end of the lapping shell 10 is connected to the rough lapping mechanism 1, and the lower end is connected to the material receiving trough 3. The material receiving trough 3 is fixedly installed at the lower end of the lapping shell 10 by bolts. A return pipe 11 is provided on one side of the upper end of the lapping shell 10. The end of the return pipe 11 away from the lapping shell 10 is tilted upward, and the high end of the return pipe 11 is connected to the discharge end of the material hoist 9 by bolts. A support plate 12 is fixedly installed in the lapping shell 10, and the support plate 12 is connected to the inner wall of the lapping shell 10 by welding. A grinding groove 13 with an open top is integrally formed in the middle of the support plate 12. A discharge hole 14 extending downward is provided at the bottom of the grinding groove 13, and a grinding roller 15 matching it is provided in the grinding groove 13. The support plate 12 is provided with grooves that are connected to each other around it, and the grooves and the inner wall of the grinding housing 10 enclose a sealed cooling chamber 16. The left side of the grinding housing 10 is provided with a liquid injection pipe 17 connected to the lower end of the cooling chamber 16, and the right side is provided with a liquid discharge pipe 18 connected to the upper end of the cooling chamber 16. By providing the liquid injection pipe 17, the cooling chamber 16 and the liquid discharge pipe 18, the cooling water circulates in the cooling chamber 16, thereby further improving the cooling efficiency of the grinding tank 13, the grinding roller 15 and the ground material, greatly extending the service life of the equipment, avoiding the material from being heated and oxidized during the grinding process, and improving the processing quality of the product.

[0040] In order to improve the cooling efficiency of the grinding tank 13 , the grinding roller 15 and the ground material, a cooling chamber 16 is disposed around the grinding tank 13 .

[0041] The grinding groove 13 is in an inverted cone shape; the grinding roller 15 is provided with a positive cone 19 located at the upper end and an inverted cone 20 located at the lower end of the positive cone 19, the positive cone 19 and the inverted cone 20 are integrally formed, the grinding roller 13 is coaxially arranged with the grinding groove 13, a grinding channel 21 is provided between the inverted cone 20 and the inner wall of the grinding groove 13, and the grinding roller 13 is driven by a power device and rotates around its own axis.

[0042] The positive cone 19 at the upper end of the grinding roller 15 can prevent the material from accumulating on the top of the grinding roller 15. After being initially crushed by the rough grinding mechanism 1, the material falls downward into the grinding groove 13. During the rotation of the grinding roller 15, the material gradually enters the grinding channel 21 downward, and is further ground and crushed by the inverted cone 20 at the lower end of the grinding roller 15 and the inner wall of the grinding groove 13.

[0043] like Figure 5As shown, the inverted cone body is provided with a first inverted cone portion 22 and a second inverted cone portion 23 with different tapers. The first inverted cone portion 21 is located below the second inverted cone portion 23. The taper of the first inverted cone portion 22 is consistent with the taper of the grinding groove 13. Moving the grinding roller 15 downward can make the first inverted cone portion 22 completely fit with the inner wall of the grinding groove 13, thereby improving the grinding effect of the material; the taper of the second inverted cone portion 23 is smaller than the taper of the grinding groove 13, so that the grinding channel 21 between the second inverted cone portion 23 and the inner wall of the grinding groove 13 gradually widens from bottom to top, which is conducive to the smooth entry of large pieces of material into the grinding channel 21.

[0044] like Figure 5 and Figure 6 As shown, a coaxially arranged support shaft 25 is welded to the lower end of the grinding roller 15, and the support shaft 25 passes downward through the discharge hole 14. A sleeve 24 is fixedly installed in the lapping shell 10 located below the support plate 12 through a first support rod, and the support shaft 25 is movably installed in the sleeve 24, providing a guide for the rotation and up and down movement of the grinding roller 15. A rotating tube 26 coaxially arranged with the support shaft 25 is rotatably installed on the bottom wall of the receiving trough 3 through a bearing, and the rotating tube 26 vertically penetrates the bottom wall of the receiving trough 3. The rotating tube 26 is driven by a power device and rotates around its own axis. A coaxially arranged multi-prism-shaped sliding rod 27 is integrally formed at the lower end of the support shaft 25. The sliding rod 27 is vertically slidably installed in the rotating tube 26, and the sliding rod 27 can slide up and down along the rotating tube 26, and the rotating tube 26 can drive the sliding rod 27 and the support shaft 25 to rotate synchronously. The power device is specifically a grinding motor 28, which is installed on the base plate 5 through a motor bracket. The rotating shaft of the grinding motor 28 is connected to the lower end of the rotating tube 26 through a belt 29. The grinding motor 28 drives the rotating tube 26 to rotate, and then the rotating tube 26 drives the grinding roller 15 to rotate through the sliding rod 27 and the support shaft 25 to grind the material.

[0045] like Figure 6 and Figure 7As shown, a frame body 47 is fixedly installed on the bottom plate 5 located below the rotating tube 26 by bolts, and a horizontal axis 48 extending left and right is rotatably installed on the frame body 47 through a bearing. A power motor 49 is also installed on the bottom plate 5 by bolts, and the rotating shaft of the power motor 49 is connected to one end of the horizontal axis 48 by a coupling, and a cam 30 is fixedly installed in the middle of the horizontal axis 48. The lower end of the slide rod 27 extends out of the outside of the rotating tube 26 and is bolted to a driven wheel 31 matching the cam 30. A spring 32 for pushing the grinding roller 15 downward is provided in the grinding shell 10. A coaxially arranged positioning shaft 33 is welded to the upper end of the grinding roller 15. A positioning seat 34 is fixedly installed in the grinding shell 10 above the support plate 12 through a second support rod. The top of the positioning seat 34 is conical, and the bottom of the positioning seat 34 is provided with a positioning groove 35 matching the positioning shaft 33. The positioning shaft 33 is movably installed in the positioning groove 35, and the spring 32 is sleeved on the positioning shaft 33 between the positioning seat 34 and the grinding roller 15.

[0046] Specifically, in the process of the grinding roller 15 rotating to grind the material, the cam 30 is driven to rotate by the power motor 49. When the protruding side of the cam 30 rotates to the top of the horizontal axis 48, the cam 30 contacts the driven wheel 31 and pushes the slide bar 27, the support shaft 25 and the grinding roller 15 to move upward, so that the first inverted cone portion 22 of the grinding roller 15 is separated from the inner wall of the grinding groove 13, so that the material can smoothly enter the grinding channel 21 between the first inverted cone portion 22 and the inner wall of the grinding groove 13; when the protruding side of the cam 30 rotates to the bottom of the horizontal axis 48, the cam 30 is separated from the driven wheel 31, and then the spring 32 pushes the grinding roller 15 to move downward, so that the first inverted cone portion 22 of the grinding roller 15 and the inner wall of the grinding groove 13 squeeze the material in the grinding channel 21, thereby improving the grinding effect of the material.

[0047] The rough grinding mechanism includes a rough grinding shell 36, which is in the shape of a vertically extending straight cylinder. A feed port 37 is provided at the upper end of the rough grinding shell 36. Two parallel rough grinding rollers 38 are rotatably installed in the rough grinding shell 36 through bearings. The rough grinding rollers 38 extend forward and backward. The two rough grinding rollers 38 are arranged side by side left and right. One of the rough grinding rollers 38 is driven to rotate by a rough grinding motor 39. The two rough grinding rollers 38 are connected by a gear pair, and the two rough grinding rollers 38 rotate in opposite directions. Specifically, a cover 40 is fixedly installed on the front side of the rough grinding housing 36 by bolts, one end of the two rough grinding rollers 38 extends into the cover 40, and a rough grinding motor 39 is installed in the cover 40 by bolts. The rotation of the rough grinding motor 39 is connected to the end of one of the rough grinding rollers 38 through a coupling; a first gear 41 located in the cover 40 is fixedly installed at the end of one of the rough grinding rollers 38, the first gear 41 meshes with the second gear 42, and the second gear 42 meshes with the third gear 43, and a fourth gear 44 meshed with the third gear 43 is fixedly installed at the end of the other rough grinding roller 38. The two rough grinding rollers 38 are driven by the rough grinding motor 39 to rotate in opposite directions, and the two rough grinding rollers 38 preliminarily crush the material.

[0048] In order to improve the effect of preliminary crushing of the material, the outer side of the rough grinding roller 38 is provided with convex strips extending along its length direction, and a plurality of convex strips are evenly spaced around the circumference of the rough grinding roller 38.

[0049] A feeding elevator 45 for adding materials to the feed port 37 is provided on the bottom plate 5. The discharge end of the feeding elevator 45 is located above the feed port 37. In order to allow the materials added by the feeding elevator 45 to accurately enter between the two rough grinding rollers 38, a guide plate 46 for guiding the materials between the two rough grinding rollers 38 is welded on the rough grinding shell 36 located above the rough grinding rollers 38. Two guide plates 46 are arranged opposite to each other on the left and right, and the two guide plates 46 are arranged in an inverted eight shape.

[0050] like Figure 8 As shown, a method for preparing kiwi fruit powder using a kiwi fruit powder preparation device comprises the following steps:

[0051] S1, adding dried kiwifruit into the rough grinding shell 36 through the feeding elevator 45, and performing preliminary grinding of the dried kiwifruit through two rough grinding rollers 38;

[0052] S2, the dried kiwi fruit initially crushed by the two rough grinding rollers 38 falls downward into the grinding tank 13, and the dried kiwi fruit is further ground and crushed by the rotation of the grinding roller 15;

[0053] S3, the material further ground and pulverized by the grinding trough 13 and the grinding roller 15 falls downward into the receiving trough 3, and the negative pressure fan is started, so that the qualified material ground into powder passes through the filter screen 7 and is sucked away through the air outlet pipe 6, and the large pieces of material that fail to be ground fall to the bottom of the receiving trough 3, and the material elevator 9 transports the unqualified material to the fine grinding mechanism 2 for secondary grinding.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A kiwi fruit powder preparation device, characterized in that: The invention also comprises a rough grinding mechanism, a fine grinding mechanism is connected to the bottom of the rough grinding mechanism, a material receiving trough is connected to the bottom of the fine grinding mechanism, an air outlet pipe is provided on one side of the material receiving trough, the air outlet pipe is connected to the negative pressure fan, a discharge pipe is provided at the bottom of the material receiving trough, the discharge pipe is connected to the feeding end of the material hoist, and the discharge end of the material hoist is connected to the fine grinding mechanism; the fine grinding mechanism comprises a fine grinding shell, the upper end of the fine grinding shell is connected to the rough grinding mechanism, and the lower end is connected to the material receiving trough, one side of the upper end of the fine grinding shell is connected to the discharge end of the material hoist, a support plate is fixedly installed in the fine grinding shell, a grinding trough with a top opening is provided on the support plate, a discharge hole is provided at the bottom of the grinding trough, and a grinding roller matched with it is provided in the grinding trough; a cooling chamber is provided between the grinding trough and the inner wall of the fine grinding shell, and an injection pipe and a discharge pipe connected to the cooling chamber are provided on the outer side of the fine grinding shell.

2. A kiwi fruit powder preparation device as claimed in claim 1, characterized in that: The cooling cavity is arranged around the grinding groove.

3. A kiwi fruit powder preparation device as claimed in claim 1, characterized in that: The grinding groove is in an inverted cone shape; the grinding roller is provided with a positive cone body located at the upper end and an inverted cone body located at the lower end of the positive cone body, the grinding roller is coaxially arranged with the grinding groove, a grinding channel is provided between the inverted cone body and the inner wall of the grinding groove, and the grinding roller is driven by a power device and rotates around its own axis.

4. A kiwi fruit powder preparation device as claimed in claim 3, characterized in that: The inverted conical body is provided with a first inverted conical portion and a second inverted conical portion with different tapers, the first inverted conical portion is located below the second inverted conical portion, the taper of the first inverted conical portion is consistent with the taper of the grinding groove, and the taper of the second inverted conical portion is smaller than the taper of the grinding groove.

5. A kiwi fruit powder preparation device as claimed in claim 3, characterized in that: A coaxially arranged support shaft is fixedly installed on the lower end of the grinding roller, and a rotating tube coaxially arranged with the support shaft is rotatably installed on the material receiving trough. The rotating tube is driven by the power device and rotates around its own axis. A polygonal columnar sliding rod is coaxially provided at the lower end of the support shaft, and the sliding rod is vertically slidably installed in the rotating tube.

6. A kiwi fruit powder preparation device as claimed in claim 5, characterized in that: A horizontal shaft driven to rotate by a power motor is provided below the rotating tube, a cam is fixedly mounted on the horizontal shaft, and a driven wheel matching the cam is mounted on the lower end of the slide rod; a spring for pushing the grinding roller downward is provided in the grinding shell.

7. The kiwi fruit powder preparation device according to claim 1, characterized in that: The rough grinding mechanism includes a rough grinding shell, the upper end of which is provided with a feed port, and two parallel rough grinding rollers are rotatably installed in the rough grinding shell, one of which is driven to rotate by a rough grinding motor, and the two rough grinding rollers are connected by a gear pair, and the two rough grinding rollers rotate in opposite directions.

8. A kiwi fruit powder preparation device as claimed in claim 7, characterized in that: The outer side of the rough grinding roller is provided with a convex strip extending along the length direction thereof, and a plurality of the convex strips are evenly spaced around the circumference of the rough grinding roller.

9. A kiwi fruit powder preparation device as claimed in claim 7, characterized in that: A material guide plate for guiding the material to between the two rough grinding rollers is fixedly installed in the rough grinding housing located above the rough grinding roller.

10. A method for preparing kiwi fruit powder using the kiwi fruit powder preparation device according to claims 1 to 7, characterized in that: This feature contains the following steps: S1, preliminarily crushing the dried kiwi fruit by the rough grinding mechanism; S2, further grinding and crushing the material obtained in S1 by the grinding mechanism; S3, collecting the material obtained in S2 through the material receiving trough; The qualified grinding materials are sucked away by the negative pressure fan; The material that fails to meet the grinding standards is transported to the fine grinding mechanism through the material elevator for secondary grinding.

Images