CN105495468B - Preparation method and device of potato flour - Google Patents

Abstract

The invention discloses a potato powder preparation method and a device for avoiding browning of potatoes in the processing process. The potato powder is prepared by cleaning the potato, and then respectively carrying out peeling treatment, slicing treatment, curing treatment, cooling treatment, mud making treatment and microwave heating and drying treatment on the potato in a closed environment, so that the contact probability of the potato and oxygen in the whole potato powder processing process is greatly reduced, the contact of polyphenol oxidase (PPO) in the potato and oxygen in the air can be effectively prevented, the oxidation polymerization is avoided, the browning of the potato can be effectively prevented, and the quality of the finally produced potato powder is ensured to be higher. Is suitable for popularization and application in the technical field of potato processing.

Description

Preparation method and device of potato flour

Technical field

The present invention relates to the field of potato processing technology, in particular to a preparation method of potato flour and its device.

Background technique

Potato, a perennial herbaceous plant of the Solanaceae family, has edible tubers and is the third most important food crop in the world, after wheat and corn. Potato, also known as ground egg, potato, potato, etc., is the tuber of Solanaceae plants. Together with wheat, corn, rice, and sorghum, it has become the world's five major crops.

The processing process of potato flour is usually divided into the following steps: cleaning-peeling-slicing-ripening-cooling-purée-drying. In the existing potato flour processing process, since most of the various processes are performed directly in the air, This causes the polyphenol oxidase (PPO) in potatoes to easily come into contact with oxygen in the air, and oxidative polymerization will occur, leading to browning. Browning of potatoes will not only turn the potatoes black, but also destroy the amino acids and amino acids of the potatoes. The protein and ascorbic acid become diseased, resulting in a reduction in the nutritional value of potatoes. Furthermore, after potatoes are browned, their flavor is poor. The products produced by browning have antioxidant effects and can produce harmful ingredients such as acrylamide, which is harmful to human health.

Contents of the invention

The technical problem to be solved by the present invention is to provide a potato flour preparation method that avoids browning of potatoes during processing.

The technical solution adopted by the present invention to solve the technical problem is: the preparation method of the potato flour includes the following steps:

A. Wash the potatoes;

B. Peel the cleaned potatoes in a closed environment and rinse them with clean water;

C. Transfer the peeled potatoes to a closed environment for slicing;

D. Heat the cut potato slices in a closed environment until the potato slices are ripe;

E. Transfer the mature potato slices to a vacuum environment for cooling;

F. Make the cooled potato slices into mashed potatoes in a closed environment;

G. Microwave heating and drying the mashed potatoes in a closed environment to obtain potato powder.

Further, in step B, an inert protective gas is filled into the sealed environment during the peeling process; in step C, an inert protective gas is filled into the sealed environment during the slicing process; so In said step D, an inert protective gas is charged into the closed environment during the heating process; in said step F, an inert protective gas is charged into the closed environment during the mud making process; in said step G, in During the microwave heating and drying process, inert protective gas is injected into the closed environment.

Further, the inert protective gas is nitrogen.

The invention also provides a potato flour preparation device capable of realizing the above preparation method. The potato flour preparation device includes a cleaning device, a peeling device, a slicing device, a ripening device, a cooling device, a pureeing device, a microwave, and a cleaning device. drying device;

The cleaning device includes a conveyor belt A, a passive roller A, a driving roller A, a driving motor A, a primary cleaning tank A, and a secondary cleaning tank A. The passive roller A and the driving roller A tighten the conveyor belt A, and the driving motor A is used to rotate the driving drum A. The primary cleaning tank A and the secondary cleaning tank A are arranged in sequence along the running direction of the conveyor belt A. The conveyor belt A has a mesh structure. The primary cleaning tank A includes a first Water tank A, the first water tank A is located between the upper conveyor belt A and the lower conveyor belt A. A plurality of first lower nozzles A are arranged in parallel with each other in the first water tank A. The first lower nozzle A A plurality of first lower nozzles A are arranged at intervals on the pipe A. The first lower nozzles A face the upper conveyor belt A. A plurality of first upper nozzles A are arranged above the first water tank A. The first lower nozzles A are arranged at intervals. An upper nozzle A is provided with a plurality of first upper nozzles A at intervals, and the first upper nozzles A face the upper conveyor belt A, and the bottom of the first water tank A is connected to a first sewage pipe A communicating with it; The secondary cleaning tank A includes a second water tank A. The second water tank A is located between the upper conveyor belt A and the lower conveyor belt A. The second water tank A is provided with a plurality of second lower nozzles arranged parallel to each other. A. A plurality of second lower nozzles A are arranged at intervals on the second lower nozzle A. The second lower nozzles A face the upper conveyor belt A. A plurality of second lower nozzles A are arranged above the second water tank A. Upper nozzle A, the second upper nozzle A is provided with a plurality of second upper nozzles A at intervals, the second upper nozzle A faces the upper conveyor belt A, the second upper nozzle A, the second lower nozzle A Pipes A are all connected to high-pressure water pipes. The bottom of the second water tank A is connected to a second sewage pipe A connected thereto. The end of the second sewage pipe A is connected to a pool A. The pool A is provided with a water inlet A and an outlet. Water outlet A, the water inlet A is connected to the end of the second sewage pipe A, the water outlet A is connected to a water diversion pipe A, a water pump A is provided on the water diversion pipe A, and the ends of the water diversion pipe A are connected to the first upper sewage pipe A. Nozzle A and the first lower nozzle A are connected;

The peeling device includes a sealed outer cylinder B and a driving motor B. A turntable B is provided inside the outer cylinder B. The outer diameter of the turntable B matches the inner diameter of the outer cylinder B. The turntable B A rotating shaft B is fixed at the center of the lower surface. The lower end of the rotating shaft B extends to the outside of the outer cylinder B. The output shaft of the drive motor B is connected to the lower end of the rotating shaft B. The upper surface of the rotating disk B is wavy. The rotating disk B connects the outer cylinder The interior of the body B is divided into a peeling cavity B and a water storage cavity B. A water spray head B is provided in the peeling cavity B. The water spray head B is located above the turntable B and faces the turntable B. A drainage pipe B is connected to the water spray head B, and a stop valve B is provided on the drainage pipe B. The drainage pipe B is connected to a high-pressure water pipe. A discharge port B is provided on the wall of the outer cylinder B. The discharge port B is located above the horizontal plane where the turntable B is located. An annular sleeve B is provided in the peeling cavity B. The outer diameter of the annular sleeve B matches the inner diameter of the outer cylinder B. The annular sleeve B The inner wall surface is a grinding surface, and the upper end of the annular sleeve B is equipped with a lifting device B. When the lower end of the annular sleeve B leans into the turntable B, the annular sleeve B blocks the discharge port B. When the annular sleeve B moves upward When it reaches the highest point, the discharge port B is connected to the peeling cavity B. The turntable B is provided with multiple water holes B. The water holes B connect the peeling cavity B and the water storage cavity B. , the bottom of the outer cylinder B is provided with a drainage port B, the drainage port B is connected to a first sewage pipe B, the first sewage pipe B is provided with a first conduction valve B, and the end of the first sewage pipe B is connected There is a sealed transition water tank B. The bottom of the transition water tank B is connected to a second sewage pipe B connected to it. The second sewage pipe B is provided with a second conduction valve B. Above the outer cylinder B, A transition cylinder B is provided. The lower end of the transition cylinder B is sealingly connected to the upper end of the outer cylinder B. A first control valve B is provided at the lower end of the transition cylinder B. The upper end of the transition cylinder B is provided with a second control valve. control valve B;

The slicing device includes a sealed casing C. A rotating shaft C is provided in the casing C. A driving motor C is connected to the rotating shaft C. The rotating shaft C divides the casing C into a left space C and a right space C. The top of the housing C is provided with a feed port C, and the bottom of the housing C is provided with a discharge port C. The feed port C and the discharge port B are sealed and connected through a feed tube C. The feed port C It is connected to the space C on the left side, and the discharge port C is located directly below the feed port C. The axial direction of the rotating shaft C is perpendicular to the direction of potato falling, and a plurality of blades C are set on the rotating shaft;

The aging device includes a steam generator D, an inner cylinder D and an outer cylinder D. The inner cylinder D is arranged inside the outer cylinder D, and a sealed chamber is formed between the outer cylinder D and the inner cylinder D. Interlayer space D, the cylinder wall of the inner cylinder is provided with a steam through hole D, the steam generator D and the interlayer space D are connected through a steam pipe D, and the upper end of the inner cylinder D is provided with a first stop valve D, The lower end of the inner cylinder D is provided with a second stop valve D. The upper end of the inner cylinder D is connected to a transition cylinder D. The upper end of the transition cylinder D is connected to a hopper D. The outlet of the hopper D is A third stop valve D is provided, and the feed port of the hopper D is sealingly connected to the discharge port C;

The cooling device includes a sealed vacuum box E. A vacuum pump E is connected to the vacuum box E. A discharge port E is provided at the bottom of the vacuum box E. The discharge port E is sealed and connected with a third vacuum pump E. A transition cylinder E. The upper end of the first transition cylinder E is provided with a first stop valve E. The lower end of the first transition cylinder E is provided with a second stop valve E. The upper end of the vacuum box E is provided with a first stop valve E. There is a second transition cylinder E. The lower end of the second transition cylinder E is sealingly connected to the vacuum box E and communicates with the inside of the vacuum box E. The lower end of the second transition cylinder E is provided with a third stop valve. E, the upper end of the second transition cylinder E is sealingly connected to the lower end of the inner cylinder D;

The mud making device includes a sealed shell F, and a conveyor belt F, a first passive roller F, a second passive roller F, a third passive roller F, a driving roller F, and a driving motor F are provided in the housing F. The third passive roller F and the driving roller F tighten the conveyor belt F. The second passive roller F is arranged between the third passive roller F and the driving roller F. The first passive roller F is arranged between the second passive roller F and the driving roller F. Between the driving drums F, the driving motor F is used to rotate the driving drum F. A first mud-making drum F is provided directly above the first passive drum F, and there is a gap between the first passive drum F and the first mud-making drum F. , a second mud-making drum F is provided directly above the second passive drum F, and there is a gap between the second passive drum F and the second mud-making drum F. A third mud-making drum is provided directly above the third passive drum F. F, and there is a gap between the third passive drum F and the third mud-making drum F. The gap between the first passive drum F and the first mud-making drum F is larger than the gap between the second passive drum F and the second mud-making drum F. The gap between the second passive drum F and the second mud-making drum F is greater than the gap between the third passive drum F and the third mud-making drum F. The gap between the first mud-making drum F and the third mud-making drum F The driving rollers F, the second mud-making roller F and the first mud-making roller F, and the third mud-making roller F and the second mud-making roller F are all connected through a transmission mechanism. The housing F is provided with There is a feed port F, which is sealingly connected to the lower end of the second transition cylinder E. The feed port F is connected to a guide groove F, and the upper end of the guide groove F is connected to the feed port. F is connected to the conveyor belt F, and the lower end extends to the conveyor belt F, and the lower end of the guide groove F is located between the driving roller F and the first passive roller F; a discharge pipe F is provided on the outside of the third passive roller F. One end of the tube F extends to the outside of the third passive roller F and is in contact with the conveyor belt F, and the other end extends to the outside of the housing F. The end of the discharge tube F is provided with a stop valve F;

The microwave drying device includes a sealed box G. A microwave transmitter G, a microwave receiver G, and a heating cylinder G are provided in the box G. The upper end of the heating cylinder G is sealed and connected with a transition cylinder G. , the upper end of the transition cylinder G extends outside the box G and is sealingly connected to the end of the discharge pipe F. The lower end of the transition cylinder G is provided with a first stop valve G. The lower end of the heating cylinder G A second stop valve G is provided extending outside the box G and at the lower end of the heating cylinder G. The microwave transmitter G and the microwave receiver G are respectively disposed on both sides of the heating cylinder G.

Further, a plurality of filters A are provided in the pool A, and the plurality of filters A are arranged in sequence between the water inlet A and the water outlet A; a hopper A is provided above the conveyor belt A, and the outlet of the hopper A The material opening faces the conveyor belt A, and the hopper A is located outside the primary cleaning tank A; a material receiving tank A is provided outside the secondary cleaning tank A, and the upper end of the transition cylinder B is sealed with the lower end of the material receiving tank A, so The material receiving trough A is connected to a guide trough A. One end of the guide trough A is connected to the material receiving trough A, and the other end extends to the outside of the driven roller A and is in contact with the conveyor belt A.

Furthermore, the length of the blade C is the same as the width of the left space C.

Further, a first scraper plate F is provided between the first mud-making drum F and the second mud-making drum F, and one end of the first scraper plate F is in contact with the outer surface of the first mud-making drum F. contact, a second scraper plate F is provided between the second mud-making drum F and the third mud-making drum F, and one end of the second scraper plate F is in contact with the outer surface of the second mud-making drum F, A third scraper plate F is provided on the outside of the third mud-making drum F, and one end of the third scraper plate F is in contact with the outer surface of the third mud-making drum F.

Furthermore, a vibrating screen G is provided below the box G, and a vibration motor G is connected to the vibrating screen G. The vibrating screen G and the box G are connected through an elastic element G.

Furthermore, a first material receiving chute G and a second material receiving chute G are provided below the vibrating screen G. The first material receiving chute G is provided directly below the vibrating screen G. The vibrating screen G is arranged at an angle. The height between the right end of the vibrating screen G and the ground is greater than the distance between the left end and the ground. The second material receiving chute G is arranged on the left side of the vibrating screen G. The left end of the vibrating screen G is connected to a material guide plate G. The guide plate G is connected to the left end of the vibrating screen G. The right end of the material plate G extends into the second material receiving groove G.

Further, the outer cylinder B is connected to a nitrogen pipe B for filling nitrogen into the outer cylinder B; the housing C is connected to a nitrogen pipe C for filling nitrogen into the housing C; The outer cylinder D is connected to a nitrogen pipe D for filling nitrogen into the outer cylinder D; the housing F is connected to a nitrogen pipe F for filling nitrogen into the housing F; the box G is connected with a nitrogen pipe G for filling nitrogen into the box G.

The beneficial effects of the present invention are: the preparation method of the potato flour is to clean the potatoes and then peel, slice, mature, cool, puree, and microwave dry the potatoes in a closed environment. , in this way, the probability of potato contact with oxygen is greatly reduced during the entire potato flour processing process, which can effectively prevent the polyphenol oxidase (PPO) in the potato from contacting oxygen in the air, avoid oxidative polymerization, and effectively prevent potato browning, thus This ensures that the potato flour produced in the end is of higher quality.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a potato flour preparation device according to the present invention;

Marking explanation in the figure: Cleaning device 1, including conveyor belt A 101, passive roller A 102, driving roller A 103, driving motor A 104, primary cleaning tank A 105, first water tank A 1051, first lower nozzle A 1052, The first lower nozzle A 1053, the first upper nozzle A 1054, the first upper nozzle A 1055, the first sewage pipe A 1056, the second cleaning tank A 106, the second water tank A1061, the second lower nozzle A 1062, Second lower nozzle A 1063, second upper nozzle A 1064, second upper nozzle A 1065, second sewage pipe A 1066, pool A 1067, diversion pipe A 1068, water pump A 1069, filter A 107, hopper A 108, Feed chute A109, guide chute A 110; peeling device 2, outer cylinder B 201, peeling cavity B 2011, water storage cavity B 2012, drive motor B202, turntable B 203, rotating shaft B 204, water spray Head B 205, drainage pipe B 206, stop valve B 207, discharge port B 208, annular sleeve B 209, lifting device B 210, water hole B 211, drain port B 212, first sewage pipe B213, first Conduction valve B214, transition water tank B 215, second sewage pipe B 216, second conduction valve B 217, transition cylinder B 218, first control valve B219, second control valve B 220, nitrogen pipe B 221; slice Device 3, housing C 301, left space C3011, right space C3012, rotating shaft C 302, drive motor C 303, feed port C 304, discharge port C 305, guide tube C 306, blade C 307, nitrogen Pipe C 308; aging device 4, steam generator D 401, inner cylinder D 402, outer cylinder D 403, interlayer space D 404, steam hole D 405, first stop valve D 406, second stop valve D 407 , transition cylinder D 408, hopper D409, third stop valve D 410, nitrogen pipe D 411; cooling device 5, vacuum box E 501, vacuum pump E 502, discharge port E 503, first transition cylinder E 504, The first stop valve E 505, the second stop valve E 506, the second transition cylinder E 507, the third stop valve E 508; mud making device 6, shell F 601, conveyor belt F 602, first passive roller F 603 , the second passive drum F 604, the third passive drum F 605, the driving drum F 606, the driving motor F 607, the first mud making drum F 608, the second mud making drum F 609, the third mud making drum F 610, enter Material port F 611, guide chute F 612, discharge pipe F 613, stop valve F 614, nitrogen pipe F 615, first scraper F 616, second scraper F 617, third scraper F 618 ;Microwave drying device 7, box G 701, microwave transmitter G 702, microwave receiver G 703, heating cylinder G 704, transition cylinder G 705, first stop valve G 706, second stop valve G 707, vibration Screen G 708, vibration motor G 709, elastic element G 710, first material receiving chute G 711, second material receiving chute G 712, guide plate G 713, nitrogen pipe G 714.

Detailed ways

Existing potato processing methods cannot avoid the contact between potatoes and air, so it is very easy to cause browning of potatoes during processing. In order to avoid browning of potatoes during processing, the present invention proposes a new method for preparing potato flour. , the preparation method of the potato flour is to clean the potatoes, then peel, slice, mature, cool, puree, and microwave dry the potatoes in a closed environment, so that the entire potato flour is During processing, the probability of potatoes coming into contact with oxygen is greatly reduced, which can effectively prevent the polyphenol oxidase (PPO) in potatoes from coming into contact with oxygen in the air, avoid oxidative polymerization, and effectively prevent potatoes from browning, thus ensuring the final production of potatoes. The powder quality is higher.

Specifically, the preparation method of potato flour includes the following steps:

A. Wash the potatoes;

B. Peel the cleaned potatoes in a closed environment and rinse them with clean water;

C. Transfer the peeled potatoes to a closed environment for slicing;

D. Heat the cut potato slices in a closed environment until the potato slices are ripe;

E. Transfer the mature potato slices to a vacuum environment for cooling;

F. Make the cooled potato slices into mashed potatoes in a closed environment;

G. Microwave heating and drying the mashed potatoes in a closed environment to obtain potato powder.

In the above embodiment, in order to completely avoid contact between potatoes and oxygen in the air, in step B, an inert protective gas is filled into the closed environment during the peeling process; in step C, during the slicing process, In the step D, an inert protective gas is filled into the sealed environment during the heating process; in the step F, an inert protective gas is filled into the sealed environment during the mud making process. Pour in the inert protective gas; in step G, pour the inert protective gas into the closed environment during the microwave heating and drying process. By introducing inert protective gas during the peeling, slicing, ripening, pureeing, and drying processes, the inert protective gas will not have any chemical reaction with potatoes, so potatoes can be effectively prevented from browning. Furthermore, the inert gas can be argon, helium and other inert gases. As a preferred way, the inert protective gas is nitrogen. Since nitrogen contains the largest proportion in the air, it is easy to obtain and the cost is low.

The present invention also provides a potato flour preparation device capable of realizing the above preparation method. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The technical solutions in are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

As shown in Figure 1, the potato flour preparation device includes a cleaning device 1, a peeling device 2, a slicing device 3, a ripening device 4, a cooling device 5, a mud making device 6, and a microwave drying device 7 arranged in sequence;

The cleaning device 1 includes a conveyor belt A101, a passive roller A102, a driving roller A103, a driving motor A104, a primary cleaning tank A105, and a secondary cleaning tank A106. The passive roller A102 and the driving roller A103 tighten the conveyor belt A101 and drive it. Motor A104 is used to rotate the driving drum A103. The primary cleaning tank A105 and the secondary cleaning tank A106 are arranged in sequence along the running direction of the conveyor belt A101. The conveyor belt A101 has a mesh structure. The primary cleaning tank A105 includes a third A water tank A1051. The first water tank A1051 is located between the upper conveyor belt A101 and the lower conveyor belt A101. A plurality of first lower nozzles A1052 arranged parallel to each other are provided in the first water tank A1051. A plurality of first lower nozzles A1053 are arranged at intervals on the nozzle A1052, and the first lower nozzles A1053 face the upper conveyor belt A101. A plurality of first upper nozzles A1054 are arranged above the first water tank A1051. A plurality of first upper nozzles A1055 are arranged at intervals on the first upper nozzle A1054, and the first upper nozzles A1055 face the upper conveyor belt A101, and the bottom of the first water tank A1051 is connected to a first sewage pipe A1056 communicating with it; so The secondary cleaning tank A106 includes a second water tank A1061. The second water tank A1061 is located between the upper conveyor belt A101 and the lower conveyor belt A101. A plurality of second lower sprays arranged parallel to each other are provided in the second water tank A1061. Pipe A1062, a plurality of second lower nozzles A1063 are arranged at intervals on the second lower nozzle A1062, the second lower nozzles A1063 face the upper conveyor belt A101, and a plurality of second lower nozzles A1063 are arranged above the second water tank A1061. Two upper nozzles A1064. A plurality of second upper nozzles A1065 are arranged at intervals on the second upper nozzles A1064. The second upper nozzles A1065 face the upper conveyor belt A101. The second upper nozzles A1064 and the second lower nozzles The nozzle A1062 is connected to the high-pressure water pipe. The bottom of the second water tank A1061 is connected to a second sewage pipe A1066 connected thereto. The end of the second sewage pipe A1066 is connected to a pool A1067. The pool A1067 is provided with a water inlet A and a water inlet A1067. Water outlet A. The water inlet A is connected to the end of the second sewage pipe A1066. The water outlet A is connected to a water diversion pipe A1068. A water pump A1069 is provided on the water diversion pipe A1068. The ends of the water diversion pipe A1068 are connected to the first water outlet A1068. The upper nozzle A1054 and the first lower nozzle A1052 are connected;

The peeling device 2 includes a sealed outer cylinder B201 and a driving motor B202. A turntable B203 is provided inside the outer cylinder B201. The outer diameter of the turntable B203 matches the inner diameter of the outer cylinder B201. The turntable B203 matches the inner diameter of the outer cylinder B201. A rotating shaft B204 is fixed at the center of the lower surface of B203. The lower end of the rotating shaft B204 extends to the outside of the outer cylinder B201. The output shaft of the driving motor B202 is connected to the lower end of the rotating shaft B204. The upper surface of the turntable B203 is wavy, and the turntable B203 connects the outer The interior of the cylinder B201 is divided into a peeling cavity B2011 and a water storage cavity B2012. A water spray head B205 is provided in the peeling cavity B2011. The water spray head B205 is located above the turntable B203 and faces the turntable B203, so The water spray head B205 is connected to a drainage pipe B206, and the drainage pipe B206 is provided with a stop valve B207. The drainage pipe B206 is connected to a high-pressure water pipe, and a discharge port B208 is provided on the wall of the outer cylinder B201, so The discharge port B208 is located above the horizontal plane where the turntable B203 is located. An annular sleeve B209 is provided in the peeling cavity B2011. The outer diameter of the annular sleeve B209 matches the inner diameter of the outer cylinder B201. The annular sleeve The inner wall surface of B209 is a grinding surface, and the upper end of the annular sleeve B209 is provided with a lifting device B210. When the lower end of the annular sleeve B209 comes into the turntable B203, the annular sleeve B209 blocks the discharge port B208. When the annular sleeve B209 moves upwards When moving to the highest point, the discharge port B208 is connected to the peeling cavity B2011. The turntable B203 is provided with a plurality of water holes B211. The water holes B211 connect the peeling cavity B2011 and the water storage cavity B2012. connected, the bottom of the outer cylinder B201 is provided with a drainage port B212, the drainage port B212 is connected to a first sewage pipe B213, the first sewage pipe B213 is provided with a first conduction valve B214, and the end of the first sewage pipe B213 A sealed transition water tank B215 is connected. The bottom of the transition water tank B215 is connected with a second drain pipe B216 connected thereto. The second drain pipe B216 is provided with a second conduction valve B217. The outer cylinder B201 A transition cylinder B218 is provided above. The lower end of the transition cylinder B218 is sealingly connected to the upper end of the outer cylinder B201. A first control valve B219 is provided at the lower end of the transition cylinder B218. The upper end of the transition cylinder B218 is provided with a third control valve B218. Two control valve B220;

The slicing device 3 includes a sealed housing C301. A rotating shaft C302 is provided in the housing C301. A driving motor C303 is connected to the rotating shaft C302. The rotating shaft C302 divides the housing C301 into a left space C3011 and a right space C3012. The top of the housing C301 is provided with a feed port C304, and the bottom of the housing C301 is provided with a discharge port C305. The feed port C304 and the discharge port C305 are sealingly connected through a feed tube C306. The feed port C304 is connected to the left space C3011, and the outlet C305 is located directly below the feed port C304. The axial direction of the rotating shaft C302 is perpendicular to the direction in which potatoes fall, and a plurality of blades C307 are set on the rotating shaft C302;

The aging device 4 includes a steam generator D401, an inner cylinder D402 and an outer cylinder D403. The inner cylinder D402 is arranged inside the outer cylinder D403. A seal is formed between the outer cylinder D403 and the inner cylinder D402. The interlayer space D404 is provided with a steam through hole D405 on the wall of the inner cylinder. The steam generator D401 and the interlayer space D404 are connected through a steam pipe D. The upper end of the inner cylinder D402 is provided with a first stop valve D406. , the lower end of the inner cylinder D402 is provided with a second stop valve D407, the upper end of the inner cylinder D402 is connected to a transition cylinder D408, the upper end of the transition cylinder D408 is connected to a hopper D409, and the discharge of the hopper D409 The port is provided with a third stop valve D410, and the feed port of the hopper D409 is sealingly connected to the discharge port C305;

The cooling device 5 includes a sealed vacuum box E501. A vacuum pump E502 is connected to the vacuum box E501. A discharge port E503 is provided at the bottom of the vacuum box E501. The discharge port E503 is sealed and connected with a vacuum pump E502. The first transition cylinder E504 is provided with a first stop valve E505 at the upper end of the first transition cylinder E504. The second stop valve E506 is provided at the lower end of the first transition cylinder E504. Above the vacuum box E501 A second transition cylinder E507 is provided. The lower end of the second transition cylinder E507 is sealingly connected to the vacuum box E501 and communicates with the inside of the vacuum box E501. The lower end of the second transition cylinder E507 is provided with a third cutoff. Valve E508, the upper end of the second transition cylinder E507 is sealingly connected to the lower end of the inner cylinder D402;

The mud making device 6 includes a sealed housing F601, which is provided with a conveyor belt F602, a first passive roller F603, a second passive roller F604, a third passive roller F605, a driving roller F606, and a driving motor F607. , the third passive roller F605 and the driving roller F606 tighten the conveyor belt F602, the second passive roller F604 is arranged between the third passive roller F605 and the driving roller F606, and the first passive roller F603 is arranged between the second passive roller F604 and the driving drum F606, the driving motor F607 is used to rotate the driving drum F606, a first mud-making drum F608 is provided directly above the first passive drum F603, and there is a gap between the first passive drum F603 and the first mud-making drum F608. There is a gap. There is a second mud-making drum F609 directly above the second passive drum F604 and there is a gap between the second passive drum F604 and the second mud-making drum F609. There is a third mud-making drum directly above the third passive drum F605. There is a gap between the drum F610 and the third passive drum F605 and the third mud-making drum F610. The gap between the first passive drum F603 and the first mud-making drum F608 is larger than the gap between the second passive drum F604 and the second mud-making drum. The gap between F609, the gap between the second passive drum F604 and the second mud making drum F609 is greater than the gap between the third passive drum F605 and the third mud making drum F610, the first mud making drum F608 It is connected to the driving drum F606, between the second mud making drum F609 and the first mud making drum F608, and between the third mud making drum F610 and the second mud making drum F609 through transmission mechanisms. A feed port F611 is provided, and the feed port F611 is sealingly connected to the lower end of the second transition cylinder E507. The feed port F611 is connected to a guide groove F612, and the upper end of the guide groove F612 is connected with the feed material. The opening F611 is connected, and the lower end extends to the conveyor belt F602, and the lower end of the guide groove F612 is located between the driving roller F606 and the first passive roller F603; a discharge pipe F613 is provided on the outside of the third passive roller F605, and the outlet One end of the material pipe F613 extends to the outside of the third passive roller F605 and contacts the conveyor belt F602, and the other end extends to the outside of the housing F601. The end of the discharge pipe F613 is provided with a stop valve F614;

The microwave drying device 7 includes a sealed box G701. A microwave transmitter G702, a microwave receiver G703, and a heating cylinder G704 are provided in the box G701. The upper end of the heating cylinder G704 is sealed and connected with a transition cylinder. G705, the upper end of the transition cylinder G705 extends to the outside of the box G701 and is sealingly connected to the end of the discharge pipe F613. The lower end of the transition cylinder G705 is provided with a first stop valve G706. The heating cylinder G704 The lower end extends outside the box G701 and a second stop valve G707 is provided at the lower end of the heating cylinder G704. The microwave transmitter G702 and microwave receiver G703 are respectively provided on both sides of the heating cylinder G704.

The potato flour preparation device is composed of a cleaning device 1, a peeling device 2, a slicing device 3, a curing device 4, a cooling device 5, a mud making device 6, and a microwave drying device 7 arranged in sequence. Each device is in a closed environment. At the same time, each device is sealed and connected, so that except for the cleaning process of potatoes, other processes are carried out in a sealed environment. This ensures that the probability of potato contact with oxygen during the entire processing is greatly reduced, which can effectively prevent the potato from being exposed to oxygen during the processing. The polyphenol oxidase (PPO) in potatoes comes into contact with oxygen in the air to avoid oxidative polymerization, which can effectively prevent potato browning, thereby ensuring that the final potato flour produced is of high quality.

When cleaning potatoes, you only need to place the potatoes that need to be processed on the conveyor belt A101. The conveyor belt A101 drives the potatoes to move along the conveyor belt A101 during the movement. During the movement, the potatoes pass through the cleaning tank A105 and the second cleaning tank A105. When the potatoes pass through the primary cleaning tank A106, the high-pressure water in the first lower nozzle A1052 located below the potato spurts upward from the first lower nozzle A1053 and sprays on the potato. The first upper nozzle located above the potato The high-pressure water in the pipe A1054 is sprayed downward from the first upper nozzle A1055 onto the potatoes, so that the entire potato can be spray-cleaned. The potatoes after primary cleaning then enter the secondary cleaning tank A106. At this time, The high-pressure water in the second lower nozzle A1062 located below the potato sprays upward from the second lower nozzle A1063 and sprays on the potato, and the high-pressure water in the second upper nozzle A1064 located above the potato downwards from the second upper nozzle A1065 Spray onto the potatoes, so that the entire potato can be spray-cleaned. The potatoes after the second cleaning become very clean. At the same time, the water after the first cleaning falls into the first water tank A1051. Since during the first cleaning, Most of the soil residue on the potato skin has been washed and fallen into the first water tank A1051, so the water in the first water tank A1051 is relatively turbid and is directly discharged from the first sewage pipe A1056. The water after the second cleaning falls into In the second water tank A1061, since during the second cleaning, only a small amount of soil residue remains on the potato skin after the first cleaning, the water in the second water tank A1061 is still relatively clear and can be used to clean the potatoes once. Therefore, the second water tank A1061 The water in the water tank A1061 is discharged into the water tank A1067 through the second sewage pipe A1066 connected at the bottom, and then the water pump A1069 is used to send the water in the water tank A1067 into the first upper nozzle A1054 and the first lower nozzle A1052 through the water diversion pipe A1068. In this way, the potatoes can be washed once, which can reduce water consumption and save costs.

In order to prevent the residual soil in the pool A1067 from clogging the water pump A1069 or the water diversion pipe A1068, multiple filters A107 are provided in the pool A1067, and the multiple filters A107 are sequentially arranged between the water inlet A and the water outlet A. In this way, The water in the pool A1067 is first filtered by multiple filters A107 and then uses the water pump A1069 to send the water in the pool A1067 through the water diversion pipe A1068 into the first upper nozzle A1054 and the first lower nozzle A1052, thus effectively avoiding the pool A1067 The residual soil inside will block the water pump A1069 or the water diversion pipe A1068, ensuring the smooth progress of the cleaning process.

In addition, in order to ensure the filtering effect, the mesh sizes of the plurality of filters A107 become smaller in sequence. The filter A107 with the largest mesh is located at the water inlet A, and the filter A107 with the smallest mesh is located at the water outlet A.

In order to facilitate loading, a hopper A108 is provided above the conveyor belt A101. The outlet of the hopper A108 faces the conveyor belt A101. The hopper A108 is located outside the primary cleaning tank A105. In this way, the potatoes that need to be cleaned only need to be put into the hopper A108. The operation is very convenient; at the same time, in order to facilitate material receiving, a material receiving groove A109 is provided on the outside of the secondary cleaning tank A106, and the upper end of the transition cylinder B218 is sealingly connected to the lower end of the material receiving groove A109. The feed trough A109 is connected to a guide trough A110. One end of the guide trough A110 is connected to the feed trough A109, and the other end extends to the outside of the passive roller A102 and is in contact with the conveyor belt A101. The cleaned potatoes are along the conveyor belt When A101 moves to the end of the guide chute A110, it falls into the material receiving chute A109 along the guide chute A110. The whole process is carried out automatically without manual handling, saving time and effort.

When performing the peeling process, first open the second control valve B220 provided at the upper end of the transition cylinder B218. At this time, the cleaned potatoes in the receiving tank A109 fall into the transition cylinder B218, and then close the second control valve B220, and then Open the first control valve B219 provided at the lower end of the transition cylinder B218, so that the potatoes in the transition cylinder B218 fall into the peeling cavity B2011. At this time, the lower end of the annular sleeve B209 leans into the turntable B203, and the discharge port B208 Blocked by the annular sleeve B209, the drive motor B202 drives the rotating shaft B204 to rotate and then drives the turntable B203 to rotate. Since the upper surface of the turntable B203 is wavy, the turntable B203 will throw the potatoes up and contact the inner surface of the annular sleeve B209 during the rotation. And friction, because the inner wall surface of the annular sleeve B209 is a grinding surface, during the contact and friction process between the potato and the annular sleeve B209, the potato's skin will be rubbed off. At the same time, the water spray head B205 set in the peeling cavity B2011 sprays The high-pressure water flow is discharged to rinse the potatoes, and the wiped potato skin is washed away from the potato surface and then flows into the water storage cavity B2012 through the multiple water holes B211 provided on the turntable B203. When the water storage cavity B2012 When there is too much water in the tank, open the first pilot valve B214 provided on the first drain pipe B213. The water in the water storage cavity B2012 flows along the first drain pipe to the transition water tank B215, and then close the first pilot valve B214. , open the second conduction valve B217 provided on the second sewage pipe B216, and the water in the transition water tank B215 is discharged along the second sewage pipe B216. After the potato skin is removed, use the lifting device B210 to lift the annular sleeve B209. The discharging port B208 is connected with the peeling cavity B2011. At this time, the turntable B203 continues to rotate and the peeled potatoes will be thrown out from the discharging port B208 and fall into the housing C301 along the guide tube C306. The peeling The device 2 has a good peeling effect and can separate the potatoes from the skin. Furthermore, by setting up the transition cylinder B218 and the transition water tank B215, while the feed port C304 and the discharge port B208 are sealed and connected through the feed tube C306, it can make The inside of the outer cylinder B201 has almost no contact with the outside air, which can effectively prevent the polyphenol oxidase (PPO) in the potatoes from contacting the oxygen in the air during the peeling process, avoid oxidative polymerization, and effectively prevent the browning of the potatoes, thereby ensuring The resulting potato flour is of higher quality.

In order to further prevent the polyphenol oxidase (PPO) in the potatoes from contacting the oxygen in the air during the peeling process and avoid oxidative polymerization, the outer cylinder B201 is connected with a device for filling nitrogen into the outer cylinder B201. Nitrogen tube B221; during the peeling process, using nitrogen as a protective gas can effectively prevent potatoes from browning, thereby ensuring that the final potato flour produced is of higher quality. At the same time, since nitrogen contains the largest proportion in the air, it is easy to obtain and the cost is low.

During the slicing process, the potatoes thrown out from the outlet B208 enter the housing C301 from the feed port C304 along the guide tube C306, and then fall freely in the housing C301. Since the rotating shaft C302 is provided in the housing C301 , a plurality of blades C307 are set on the rotating shaft. The rotating shaft C302 rotates at a high speed driven by the driving motor C303, thereby causing the blade C307 to rotate at a high speed. During the high-speed rotation of the blade C307, the freely falling potatoes can be cut into slices. The sliced potato slices fall into the hopper D409 from the discharge C. In addition, since the feed port C304 and the discharge port B208 are sealed through the feed pipe C306, the feed port C305 of the discharge port and the feed port of the hopper D409 are sealed. connection, therefore, the inside of the shell C301 can be almost not in contact with the outside air, which can effectively prevent the polyphenol oxidase (PPO) in the potato from contacting the oxygen in the air during the slicing process, avoid oxidative polymerization, and effectively prevent the potato from browning. changes, thereby ensuring that the final potato flour produced is of higher quality.

Furthermore, in order to ensure that the blade C307 can cut all the potatoes falling from the feed port C304, the length of the blade C307 is the same as the width of the left space C3011, so that the blade C307 is always on the path of the falling potatoes, which can make The potatoes falling from the feed port C304 are cut into slices.

In addition, in order to further prevent the polyphenol oxidase (PPO) in the potatoes from contacting the oxygen in the air during the slicing process and avoid oxidative polymerization, the housing C301 is connected with a nitrogen gas for filling the housing C301 with nitrogen. Tube C308; During the slicing process, nitrogen is used as a protective gas to effectively prevent potatoes from browning, thereby ensuring that the final potato flour produced is of high quality. At the same time, since nitrogen contains the largest proportion in the air, it is easy to obtain and the cost is low.

When ripening potatoes, first open the third stop valve D410 provided at the outlet of the hopper D409, so that the potato slices in the hopper D409 fall into the transition cylinder D408, then close the third stop valve D410, and then open the first The stop valve D406 causes the potato slices in the transition cylinder D408 to fall into the inner cylinder D402, and closes the first stop valve D406. At this time, the steam generator D401 works to generate high-temperature water vapor, and the high-temperature water vapor flows along the steam pipe D Flows into the mezzanine space D404, and then the high-temperature steam enters the inner cylinder D402 through the steam through hole D405, contacts the potato slices, and heats and matures the potato slices. After the potato slices are heated to maturity, open the third valve set at the lower end of the inner cylinder D402. The second stop valve D407, the ripened potato slices fall into the second transition cylinder E507. The ripening device 4 uses steam to ripen the potatoes, which can ripen the potatoes quickly with high ripening effect. At the same time, the entire ripening process is carried out automatically without manual handling. Potatoes, in addition, by setting up the transition cylinder D408, the inside of the outer cylinder D403 can be almost not in contact with the outside air, which can effectively prevent the polyphenol oxidase (PPO) in the potatoes from contacting the oxygen in the air during the ripening process, thus avoiding the occurrence of Oxidative polymerization can effectively prevent potatoes from browning, thereby ensuring that the final potato flour produced is of higher quality.

In addition, in order to further prevent the polyphenol oxidase (PPO) in the potatoes from coming into contact with oxygen in the air during the ripening process and avoid oxidative polymerization, the outer cylinder D403 is connected with a device for filling nitrogen into the outer cylinder D403. The nitrogen pipe D411; during the curing process, using nitrogen as a protective gas can effectively prevent potatoes from browning, thereby ensuring that the final potato flour produced is of high quality. At the same time, since nitrogen contains the largest proportion in the air, it is easy to obtain and the cost is low.

When cooling the potatoes, first open the third stop valve E508 provided at the lower end of the second transition cylinder E507, so that the mature high-temperature potato slices fall into the vacuum box E501, then close the third stop valve and turn on the vacuum pump E502. The vacuum box E501 is evacuated, and the high-temperature potato slices are quickly cooled in the vacuum environment. When the potato slices are cooled to room temperature, the first stop valve E is opened, so that the potato slices in the vacuum box E501 fall into the first transition In the cylinder E504, then close the first stop valve E, then open the second stop valve, and the potato slices fall into the guide groove F612. The cooling device 5 cools the potatoes in a vacuum environment, because in a vacuum environment, the temperature is very low , can cool potatoes quickly with good cooling effect. At the same time, in a vacuum environment, it can effectively prevent the polyphenol oxidase (PPO) in potatoes from contacting oxygen in the air during the cooling process, avoid oxidative polymerization, and effectively prevent potatoes from oxidative polymerization. Browning, thereby ensuring that the final potato flour produced is of higher quality.

When the potato slices are being pureed, the potato slices falling into the guide chute F612 fall along the guide chute F612 onto the conveyor belt F602. The potato slices are driven by the conveyor belt F602 and pass through the first mud making roller F608 and the drive in turn. The gap between the drums F606, the gap between the second mud-making drum F609 and the first mud-making drum F608, the gap between the third mud-making drum F610 and the second mud-making drum F609, due to the gap between the first passive drum F603 and The gap between the first mud-making drum F608 is larger than the gap between the second passive drum F604 and the second mud-making drum F609, and the gap between the second passive drum F604 and the second mud-making drum F609 is larger than the gap between the third passive drum F604 and the second mud-making drum F609. The gap between the drum F605 and the third mud-making drum F610, the potato slices will be gradually pressed into mud after passing through the above gap in sequence, and the made potato mud will fall into the discharge pipe F613. This mud-making method is more convenient to operate and does not require There will be a problem of clogging, and the potato chips will become puree after three pressings. The pureeing process is step-by-step. The load on the drive motor F607 is even and small, which can greatly extend the service life of the drive motor F607, thus reducing the cost of the drive motor. The maintenance and replacement of the potato mud making machine will be lower, and the mud making efficiency of the mud making machine will be greatly improved. In addition, the feed port F611 is sealed with the lower end of the second transition cylinder E507, and the discharge pipe F613 There is a stop valve F614 at the end, and the mud-making process is carried out in a sealed shell F601, which can effectively prevent the polyphenol oxidase (PPO) in the potatoes from contacting the oxygen in the air during the mud-making process to avoid oxidation. Polymerization can effectively prevent potatoes from browning, thereby ensuring that the final potato flour produced is of higher quality.

Since potato puree has a certain viscosity, it is easy to stick to the outer surface of the puree drum. In order to avoid the above problem, a first scraper plate is provided between the first puree drum F608 and the second puree drum F609. F616, one end of the first scraper plate F616 is in contact with the outer surface of the first mud making drum F608, and a second scraper plate F617 is provided between the second mud making drum F609 and the third mud making drum F610, One end of the second scraping plate F617 is in contact with the outer surface of the second mud making drum F609. A third scraping plate F618 is provided on the outside of the third mud making drum F610. The third scraping plate F618 has One end is in contact with the outer surface of the third mud-making drum F610. The scraper plate can scrape the mashed potatoes stuck on the surface of the puree drum to the surface of the conveyor belt F602 to prevent excessive mashed potatoes from adhering to the surface of the puree drum and affecting the smooth progress of the puree process.

The transmission mechanism can adopt various existing transmission mechanisms such as gear transmission and chain transmission. In order to facilitate maintenance and installation, the transmission mechanism is preferably a belt transmission mechanism.

In addition, in order to further prevent the polyphenol oxidase (PPO) in the potatoes from contacting the oxygen in the air during the mud making process and avoid oxidative polymerization, the housing F601 is connected with a device for filling nitrogen into the housing F601. Nitrogen pipe F615; during the mud making process, using nitrogen as a protective gas can effectively prevent potatoes from browning, thereby ensuring that the final potato flour produced is of high quality. At the same time, since nitrogen contains the largest proportion in the air, it is easy to obtain and the cost is low.

When drying potatoes by microwave heating, first open the stop valve F614, so that the potato puree in the discharge pipe F613 falls into the transition cylinder G705, then close the stop valve F614, and then open the first stop valve G706, so that the transition cylinder The mashed potatoes in body G705 fall into the heating cylinder G704. At this time, the microwave transmitter G702 and microwave receiver G703 are turned on. The microwave passes through the heating cylinder G704, and the mashed potatoes in the heating cylinder G704 are heated and dried. When dry After the potato flour is obtained, the microwave drying device 7 uses microwaves to dry and heat the potato mud, which can quickly remove the moisture contained in the potato mud, and the drying effect is good. At the same time, by setting the transition cylinder G705, the entire drying and heating process can be made Conducted in a closed environment, it can effectively prevent the polyphenol oxidase (PPO) in potatoes from contacting oxygen in the air during the drying and heating process, avoid oxidative polymerization, and effectively prevent potatoes from browning, thus ensuring the final production of potatoes. The powder quality is higher.

In order to facilitate screening and collection of qualified potato flour, a vibrating screen G708 is provided below the box G701. A vibration motor G709 is connected to the vibrating screen G708. The vibrating screen G708 and the box G701 are connected through an elastic element G710. When the potato flour is dried, the second stop valve G707 is opened, so that the potato flour in the heating cylinder G704 falls into the vibrating screen G708. The vibration motor G709 makes the vibrating screen G708 vibrate, and the qualified potato flour will be screened out.

In order to facilitate the collection of qualified potato flour and unqualified potato flour, a first material receiving chute G711 and a second material receiving chute G712 are provided below the vibrating screen G708. The first material receiving chute G711 is provided in front of the vibrating screen G708. Below, the vibrating screen G708 is arranged at an angle. The height of the right end of the vibrating screen G708 from the ground is greater than the distance between the left end and the ground. The second material receiving chute G712 is arranged on the left side of the vibrating screen G708. The left end of the vibrating screen G708 A material guide plate G713 is connected, and the right end of the material guide plate G713 extends into the second material receiving groove G712. Qualified potato flour falls from the vibrating screen G708 into the first receiving chute G711. Unqualified potato flour slides along the inclined vibrating screen G708 to the left end and then falls along the guide plate G713 into the second receiving chute G712. Screening of qualified potato flour and unqualified potato flour.

In addition, in order to further prevent the polyphenol oxidase (PPO) in the potatoes from contacting the oxygen in the air during the microwave heating process and avoid oxidative polymerization, the box G701 is connected with a device for filling nitrogen into the box G701. Nitrogen tube G714 uses nitrogen as a protective gas during the microwave heating and drying process, which can effectively prevent potatoes from browning, thereby ensuring that the final potato flour produced is of high quality. At the same time, since nitrogen contains the largest proportion in the air, it is easy to obtain and the cost is low.

Claims (7)

1. A potato powder preparation device is characterized in that: comprises a cleaning device (1), a peeling device (2), a slicing device (3), a curing device (4), a cooling device (5), a mud making device (6) and a microwave drying device (7) which are sequentially arranged;

the cleaning device (1) comprises a conveying belt A (101), a driven roller A (102), a driving roller A (103), a driving motor A (104), a primary cleaning tank A (105) and a secondary cleaning tank A (106), wherein the conveying belt A (101) is tightly stretched by the driven roller A (102) and the driving roller A (103), the driving motor A (104) is used for enabling the driving roller A (103) to rotate, the primary cleaning tank A (105) and the secondary cleaning tank A (106) are sequentially arranged along the running direction of the conveying belt A (101), the conveying belt A (101) is of a net-shaped structure, the primary cleaning tank A (105) comprises a first water tank A (1051), the first water tank A (1051) is positioned between the conveying belt A (101) on the upper layer and the conveying belt A (101) on the lower layer, a plurality of first lower spray pipes A (1052) which are mutually parallel are arranged in the first water tank A (1051), a plurality of first lower spray nozzles A (1053) are arranged on the first lower spray pipes (1052), the first lower spray nozzles A (1053) are arranged on the first spray pipes (1054) on the first spray pipes (101) on the first water tank A (1054) on the first spray pipes (101), the bottom of the first water tank A (1051) is connected with a first blow-down pipe A (1056) communicated with the first water tank A; the secondary washing tank A (106) comprises a second water tank A (1061), the second water tank A (1061) is located between an upper layer conveying belt A (101) and a lower layer conveying belt A (101), a plurality of second lower spray pipes A (1062) which are mutually parallel are arranged in the second water tank A (1061), a plurality of second lower spray pipes A (1063) are arranged on the second lower spray pipes A (1062) at intervals, the second lower spray pipes A (1063) face the upper layer conveying belt A (101), a plurality of second upper spray pipes A (1064) are arranged above the second water tank A (1061), a plurality of second upper spray pipes A (1065) are arranged on the second upper spray pipes A (1064) at intervals, the second upper spray pipes A (1065) face the upper layer conveying belt A (101), the second lower spray pipes A (1062) are communicated with a high-pressure water pipe, the bottom of the second water tank A (1061) is connected with a second drain pipe A (1068), a drain pipe A (1068) is connected with a drain pipe A (1068), a drain pipe (6A (1068) is arranged at the tail end of the drain pipe A (1068), a drain pipe (6A (1068) is connected with the drain pipe A (1068), and a drain pipe (6) is connected with the drain pipe A (1068) and the drain pipe (6) The first lower spray pipe A (1052) is communicated, a plurality of filter screens A (107) are arranged in the water pool A (1067), the filter screens A (107) are sequentially arranged between the water inlet A and the water outlet A, the mesh sizes of the filter screens A (107) are sequentially reduced, the filter screen A (107) with the largest mesh is positioned at the water inlet A, and the filter screen A (107) with the smallest mesh is positioned at the water outlet A;

The peeling device (2) comprises an airtight outer cylinder body B (201) and a driving motor B (202), a rotary table B (203) is arranged in the outer cylinder body B (201), the outer diameter of the rotary table B (203) is matched with the inner diameter of the outer cylinder body B (201), a rotary shaft B (204) is fixed at the center of the lower surface of the rotary table B (203), the lower end of the rotary shaft B (204) extends out of the outer cylinder body B (201), an output shaft of the driving motor B (202) is connected with the lower end of the rotary shaft B (204), the upper surface of the rotary table B (203) is wave-shaped, the rotary table B (203) divides the inner part of the outer cylinder body B (201) into a peeling cavity B (2011) and a water storage cavity B (2012), a water spray head B (205) is arranged in the peeling cavity B (2011), the water spray head B (205) is positioned above the rotary table B (203) and faces the rotary table B (203), a drain tube B (206) is connected to the rotary table B (205), a drain tube B (206) is arranged on the drain tube B (206), a drain tube B (208) is connected with a water discharge port (209) on the water discharge port (201) of the rotary table B, the outer diameter of the annular sleeve B (209) is matched with the inner diameter of the outer cylinder body B (201), the inner wall surface of the annular sleeve B (209) is a grinding surface, the upper end of the annular sleeve B (209) is provided with a lifting device B (210), when the lower end of the annular sleeve B (209) leans against the rotary disc B (203), the annular sleeve B (209) blocks a discharge hole B (208), when the annular sleeve B (209) moves upwards to the highest point, the discharge hole B (208) is communicated with a peeling cavity B (2011), the rotary disc B (203) is provided with a plurality of water passing holes B (211), the water passing holes B (211) are communicated with a water storage cavity B (2012), the bottom of the outer cylinder body B (201) is provided with a water outlet B (212), a first drain pipe B (213) is connected to the water outlet B (212), the tail end of the first drain pipe B (213) is connected with a closed transition water tank B (215), the bottom of the first drain pipe B (213) is connected with a second drain pipe (216), the second drain pipe (216) is connected with a second drain pipe (216) and the second drain pipe (216) is communicated with the second drain pipe (216), the lower end of the transition barrel body B (218) is in sealing connection with the upper end of the outer barrel body B (201), a first control valve B (219) is arranged at the lower end of the transition barrel body B (218), and a second control valve B (220) is arranged at the upper end of the transition barrel body B (218);

The slicing device (3) comprises a sealed shell C (301), a rotating shaft C (302) is arranged in the shell C (301), a driving motor C (303) is connected to the rotating shaft C (302), the rotating shaft C (302) divides the shell C (301) into a left space C (3011) and a right space C (3012), a feeding hole C (304) is formed in the top of the shell C (301), a discharging hole C (305) is formed in the bottom of the shell C (301), the feeding hole C (304) is connected with a discharging hole B (208) in a sealing mode through a material guide pipe C (306), the feeding hole C (304) is communicated with the left space C (3011), the discharging hole C (305) is located under the feeding hole C (304), the axial direction of the rotating shaft C (302) is perpendicular to the falling direction of potatoes, and a plurality of blades C (307) are sleeved on the rotating shaft C (302);

the curing device (4) comprises a steam generator D (401), an inner cylinder D (402) and an outer cylinder D (403), wherein the inner cylinder D (402) is arranged in the outer cylinder D (403), a sealed interlayer space D (404) is formed between the outer cylinder D (403) and the inner cylinder D (402), a steam through hole D (405) is formed in the wall of the inner cylinder, the steam generator D (401) is communicated with the interlayer space D (404) through a steam pipe D, a first stop valve D (406) is arranged at the upper end of the inner cylinder D (402), a second stop valve D (407) is arranged at the lower end of the inner cylinder D (402), a transition cylinder D (408) is connected at the upper end of the inner cylinder D (402), a hopper D (409) is connected at the upper end of the transition cylinder D (408), a third stop valve D (410) is arranged at the discharge port of the hopper D (409), and a feed port of the hopper D (409) is connected with a discharge port C (305) in a sealing manner;

The cooling device (5) comprises a closed vacuum box body E (501), a vacuum pump E (502) is connected to the vacuum box body E (501), a discharge hole E (503) is formed in the bottom of the vacuum box body E (501), a first transition cylinder body E (504) is connected to the discharge hole E (503) in a sealing mode, a first stop valve E (505) is arranged at the upper end of the first transition cylinder body E (504), a second stop valve E (506) is arranged at the lower end of the first transition cylinder body E (504), a second transition cylinder body E (507) is arranged above the vacuum box body E (501), the lower end of the second transition cylinder body E (507) is connected with the vacuum box body E (501) in a sealing mode and is communicated with the interior of the vacuum box body E (501), a third stop valve E (508) is arranged at the lower end of the second transition cylinder body E (507), and the upper end of the second transition cylinder body E (507) is connected with the lower end of an inner cylinder body D (402) in a sealing mode;

the mud making device (6) comprises a closed shell F (601), a conveying belt F (602), a first driven roller F (603), a second driven roller F (604), a third driven roller F (605), a driving roller F (606) and a driving motor F (607) are arranged in the shell F (601), the conveying belt F (602) is tensioned by the third driven roller F (605) and the driving roller F (606), the second driven roller F (604) is arranged between the third driven roller F (605) and the driving roller F (606), the first driven roller F (603) is arranged between the second driven roller F (604) and the driving roller F (606), the driving motor F (607) is used for enabling the driving roller F (606) to rotate, a gap exists between the first mud making roller F (608) and the first driven roller F (603) and the first mud making roller F (608), a gap exists between the second driven roller F (604) and the third driven roller F (609) and the second driven roller F (610) which is arranged between the second driven roller F (604) and the third driven roller F (609), the gap between the first driven roller F (603) and the first mud making roller F (608) is larger than the gap between the second driven roller F (604) and the second mud making roller F (609), the gap between the second driven roller F (604) and the second mud making roller F (609) is larger than the gap between the third driven roller F (605) and the third mud making roller F (610), the gap between the first mud making roller F (608) and the driving roller F (606), the gap between the second mud making roller F (609) and the first mud making roller F (608) and the gap between the third mud making roller F (610) and the second mud making roller F (609) are all connected through a transmission mechanism, a feeding port F (611) is arranged on the shell F (601), the feeding port F (611) is in sealing connection with the lower end of the second transition roller E (507), a guide groove F (612) is connected on the feeding port F (612), the upper end of the guide groove F (612) is connected with the lower end of the guide groove F (612) and the guide groove F (612) is connected with the lower end of the driving roller F (602) and extends to the lower end of the guide groove F (602); a discharging pipe F (613) is arranged on the outer side of the third driven roller F (605), one end of the discharging pipe F (613) extends to the outer side of the third driven roller F (605) and is in contact with the conveying belt F (602), the other end of the discharging pipe F extends to the outer side of the shell F (601), and a stop valve F (614) is arranged at the tail end of the discharging pipe F (613);

The microwave drying device (7) comprises a sealed box G (701), a microwave emitter G (702), a microwave receiver G (703) and a heating barrel G (704) are arranged in the box G (701), the upper end of the heating barrel G (704) is connected with a transition barrel G (705) in a sealing mode, the upper end of the transition barrel G (705) extends out of the box G (701) and is connected with the tail end of a discharging pipe F (613) in a sealing mode, a first stop valve G (706) is arranged at the lower end of the transition barrel G (705), the lower end of the heating barrel G (704) extends out of the box G and a second stop valve G (707) is arranged at the lower end of the heating barrel G (704), and the microwave emitter G (702) and the microwave receiver G (703) are respectively arranged on two sides of the heating barrel G (704).

2. The potato flour preparing apparatus of claim 1, wherein: a hopper A (108) is arranged above the conveying belt A (101), a discharge hole of the hopper A (108) faces the conveying belt A (101), and the hopper A (108) is positioned outside the primary cleaning tank A (105); the outer side of the secondary cleaning tank A (106) is provided with a receiving groove A (109), the upper end of the transition barrel B (218) is in sealing connection with the lower end of the receiving groove A (109), the receiving groove A (109) is connected with a guide groove A (110), one end of the guide groove A (110) is connected with the receiving groove A (109), and the other end of the guide groove A (110) extends to the outer side of the driven roller A (102) and is in contact with the conveying belt A (101).

3. The potato flour preparing apparatus of claim 1, wherein: the length of the blade C (307) is the same as the width of the left space C (3011).

4. The potato flour preparing apparatus of claim 1, wherein: the mud making machine comprises a first mud making roller F (608) and a second mud making roller F (609), wherein a first scraping plate F (616) is arranged between the first mud making roller F (608) and the second mud making roller F (609), one end of the first scraping plate F (616) is contacted with the outer surface of the first mud making roller F (608), a second scraping plate F (617) is arranged between the second mud making roller F (609) and a third mud making roller F (610), one end of the second scraping plate F (617) is contacted with the outer surface of the second mud making roller F (609), a third scraping plate F (618) is arranged on the outer side of the third mud making roller F (610), and one end of the third scraping plate F (618) is contacted with the outer surface of the third mud making roller F (610).

5. The potato flour preparing apparatus of claim 1, wherein: the vibrating screen G (708) is arranged below the box body G, the vibrating screen G (708) is connected with a vibrating motor G (709), and the vibrating screen G (708) is connected with the box body G through an elastic element G (710).

6. The potato flour preparing apparatus of claim 5, wherein: the utility model discloses a vibrating screen G (708), including vibrating screen G (708), material guiding plate G (713) and second material receiving groove G (712) are connected to vibrating screen G (708) below being provided with first material receiving groove G (711), first material receiving groove G (711) sets up under vibrating screen G (708), vibrating screen G (708) slope sets up, and the right-hand member of vibrating screen G (708) is greater than the distance of left end distance from ground apart from the right-hand member, second material receiving groove G (712) sets up in the left side of vibrating screen G (708), the left end of vibrating screen G (708) is connected with material guiding plate G (713), the right-hand member of material guiding plate G (713) extends to in the material receiving groove G (712) of second.

7. The potato flour preparing apparatus of claim 1, wherein: the outer cylinder B (201) is connected with a nitrogen pipe B (221) for filling nitrogen into the outer cylinder B (201); a nitrogen pipe C (308) for filling nitrogen into the shell C (301) is connected to the shell C (301); a nitrogen pipe D (411) for filling nitrogen into the outer cylinder D (403) is connected to the outer cylinder D (403); a nitrogen pipe F (615) for filling nitrogen into the shell F (601) is connected to the shell F (601); the box body G (701) is connected with a nitrogen pipe G (714) for filling nitrogen into the box body G (701).