A complete equipment for processing fresh potatoes into main food potato whole powder

By integrating complete potato processing equipment, the problems of low potato protein content and insufficient resource utilization have been solved, realizing high-protein and environmentally friendly zero-waste production of potato flour. The products can be seasoned according to taste to meet the needs of a wide range of people.

CN224584150UActive Publication Date: 2026-08-04SHANGHAI LUMEILA SOLID WASTE RECLAMATION ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI LUMEILA SOLID WASTE RECLAMATION ENG CO LTD
Filing Date
2025-04-16
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Current potato processing technologies have low protein content, fail to effectively utilize potato peels and washing water, fail to address environmental issues, and produce products with tastes unsuitable for a wide range of consumers.

Method used

The complete set of equipment consists of a potato light recognition sorting machine, a washing and peeling linkage machine, a crushing and pulping machine, a vacuum dehydrator, an automatic metering and batching machine, a dryer, a low-temperature puffing machine, a mixer, and a finished product packaging machine. It realizes the sorting, washing, peeling, pulping, dehydration, batching, drying, and seasoning of potatoes. Combined with intelligent control, it produces potato flour, a staple food, and recycles the washing water through a reclaimed water production device to treat rotten potatoes in a resource-based manner.

Benefits of technology

This method increases the protein content of potato flour, bringing it to or exceeding the levels of corn, wheat, and rice, thus achieving zero-waste utilization of resources. The product can be seasoned according to individual tastes to meet different needs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224584150U_ABST
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Abstract

This utility model discloses a complete set of equipment for processing fresh potatoes into potato flour, a staple food. The equipment includes: a potato light-based identification and sorting machine, a washing and peeling machine, a crushing and pulping machine, a potato pulp rotary paddle vacuum dewatering machine, an automatic metering and batching machine for wet potato flour, a dryer, a low-temperature puffing machine, a mixer, a low-temperature dryer, an automatic finished product metering and packaging machine, a conveying, palletizing, and warehousing machine, and an intelligent control device, achieving intelligent, fully automated control throughout the process. The innovative advantage of this utility model lies in the application of green, full-chain processing technology for processing fresh potatoes into potato flour. Washing water is treated into reclaimed water for recycling; rotten potatoes are recycled into feed ingredients or small-molecule organic water-soluble potato-specific fertilizer; and all potato peels are utilized after processing. The result is the absence of wastewater, waste gas, and waste residue.
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Description

Technical Field

[0001] This utility model belongs to the field of grain processing, specifically relating to a complete set of equipment for processing fresh potatoes into potato flour, a staple food. The potato flour produced by this equipment is different from that produced by potato starch. Background Technology

[0002] The protein content of the three major staple grains is as follows: corn contains 8%-9% protein; rice and wheat contain about 14%-15% protein; and potatoes (dry basis) contain about 3% protein, which is significantly low for staple grains.

[0003] The potato rice formulas in market products are geared towards diabetics, resulting in poor taste and failing to meet the needs of the broader population who consider it a staple food.

[0004] Patents applied for within the past ten years regarding potato processing are incomplete in terms of technology, have not considered environmental issues, have not addressed the issue of sorting and processing rotten soil, have not treated the washing and peeling water as recycled industrial water, have not recycled and reused potato peels which account for about 2% of the potato and contain about 80% of the vitamins and potassium in the whole potato, and have not taken into account the seasoning before packaging. Utility Model Content

[0005] This utility model addresses the aforementioned problems in the existing technology by providing a complete set of equipment for processing fresh potatoes into staple potato flour.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A complete set of equipment for processing fresh potatoes into potato flour, a staple food, includes:

[0008] A potato light-based identification sorting machine is used to sort fresh potatoes. The potato light-based identification sorting machine has a good fresh potato discharge side and a rotten potato discharge side. The good fresh potato discharge side and the rotten potato discharge side separate the good fresh potatoes and send them out.

[0009] A washing and peeling machine is provided, wherein the feed side of the washing and peeling machine is connected to the fresh potato output side of the potato light recognition sorting machine via a first conveyor, and receives the fresh potatoes sent out from the fresh potato output side of the potato light recognition sorting machine; the washing and peeling machine has a clean water inlet, a clean water outlet, a wet potato peel outlet, and a peeled and cleaned potato outlet, wherein the clean water inlet supplies washing water, the clean water outlet supplies clean water, the potato peel outlet supplies potato peel, and the peeled and cleaned potato outlet supplies peeled and cleaned potatoes.

[0010] The crushing and pulping machine has a feed side connected to the peeled and washed potato outlet via a second conveyor. It receives the peeled and washed potatoes from the peeling and washing machine and pulps them. The crushing and pulping machine has a potato pulp outlet and a potato pulp circulating water inlet.

[0011] A rotary paddle vacuum dewatering machine for potato pulp has a potato pulp inlet, a water outlet, a potato flour outlet, and a feed inlet. The potato pulp inlet of the rotary paddle vacuum dewatering machine is connected to the potato pulp outlet of the crushing and pulping machine via a third conveyor. The water outlet of the rotary paddle vacuum dewatering machine is connected to the potato pulp circulating water inlet of the crushing and pulping machine via a fourth conveyor. The water extracted by the rotary paddle vacuum dewatering machine is sent to the crushing and pulping machine for recycling. The potato flour outlet delivers dehydrated potato flour.

[0012] An automatic metering and batching machine for wet soybean flour has several inlets and one outlet. One inlet is connected to the potato flour outlet of a rotary paddle vacuum dewatering machine via a fifth conveyor, receiving the dehydrated potato flour from the outlet. The other inlets are used to feed different ingredients. The batched potato flour is then discharged from the outlet of the automatic metering and batching machine.

[0013] A dryer having a wet potato peel inlet and a dry potato peel outlet, wherein the wet potato peel inlet of the dryer is connected to the wet potato peel outlet of the washing and peeling linkage machine via a sixth conveyor, which receives the wet potato peels sent out by the potato peel outlet of the washing and peeling linkage machine, dries the wet potato peels, and then sends them out by the dry potato peel outlet of the dryer.

[0014] A low-temperature puffing machine has a dry potato peel inlet and a puffed potato peel outlet. The dry potato peel inlet of the low-temperature puffing machine is connected to the dry potato peel outlet of the dryer through a seventh conveyor, which receives the dry potato peels sent out from the dryer's dry potato peel outlet and puffs the dry potato peels at low temperature. The puffed potato peels are sent out through the puffed potato peel outlet.

[0015] The internal mixer has a pre-mixed potato flour inlet, an extruded potato peel inlet, and a mixed potato flour outlet. The pre-mixed potato flour inlet of the internal mixer is connected to the outlet of the automatic metering and batching machine for wet soybean flour via an eighth conveyor. The extruded potato peel inlet of the internal mixer is connected to the extruded potato peel outlet of the low-temperature extruder via a ninth conveyor. The pre-mixed potato flour and extruded potato peel are mixed in the internal mixer, and the mixed potato flour is discharged from the mixed potato flour outlet.

[0016] A low-temperature dryer has a potato flour inlet and a dried potato flour outlet. The potato flour inlet of the low-temperature dryer is connected to the potato flour outlet of the mixer via a tenth conveyor. The conveyor receives the potato flour sent from the potato flour inlet of the low-temperature dryer and dries it at low temperature to form dried potato flour, which is then sent out from the dried potato flour outlet.

[0017] An automatic metering and packaging machine for finished products has a dry potato starch inlet and a packaged dry potato starch outlet. The dry potato starch inlet of the automatic metering and packaging machine is connected to the dry potato starch outlet of the low-temperature dryer through an eleventh conveyor, which receives and packages the dry potato starch sent out from the dry potato starch outlet of the low-temperature dryer. The packaged dry potato starch is sent out from the packaged dry potato starch outlet of the automatic metering and packaging machine.

[0018] The conveying and palletizing warehousing linkage machine has a packaged, mixed potato starch input side. The packaged, mixed potato starch input side of the conveying and palletizing warehousing linkage machine is connected to the packaged, mixed potato starch output side of the finished product automatic metering and packaging machine through a twelfth conveyor to stack and store the packaged, mixed potato starch.

[0019] The intelligent control device is connected to the potato light recognition sorting machine, the washing and peeling linkage machine, the crushing and pulping machine, the potato pulp rotary paddle vacuum dewatering machine, the automatic metering and batching machine for wet soybean flour, the dryer, the low temperature puffing machine, the internal mixer, the automatic metering and packaging machine for finished products, the conveying, palletizing and warehousing linkage machine, and the first to twelfth conveyors to achieve intelligent full-process automatic control.

[0020] In a preferred embodiment of this utility model, a reclaimed water production device is further included. The reclaimed water production device has a post-washing water inlet and a circulating water outlet. The washing and peeling linkage machine also has a circulating water inlet. The post-washing water inlet of the reclaimed water production device and the post-washing water outlet of the washing and peeling linkage machine are connected through a thirteenth conveyor to receive the post-washing water sent by the washing and peeling linkage machine and regenerate it. The reclaimed water is sent into the washing and peeling linkage machine for circulation and reuse through the circulating water outlet of the reclaimed water production device and the circulating water inlet of the washing and peeling linkage machine. The reclaimed water production device and the thirteenth conveyor are controlled and connected to the intelligent control device.

[0021] In a preferred embodiment of this utility model, a feed-making device is further included. The feed-making device has a first rotten potato inlet side, which is connected to the rotten potato outlet side of the potato optical recognition sorting machine via a fourteenth conveyor. The rotten potatoes sent out by the rotten potato outlet side of the potato optical recognition sorting machine are used to prepare feed. The feed-making device and the fourteenth conveyor are controlled and connected to the intelligent control device.

[0022] In a preferred embodiment of this utility model, a device for producing small-molecule organic water-soluble potato fertilizer is further included. The device has a second rotten potato inlet side, which is connected to the rotten potato outlet side of the potato optical recognition sorting machine via a fifteenth conveyor. The rotten potatoes sent out from the rotten potato outlet side of the potato optical recognition sorting machine are used to prepare small-molecule organic water-soluble potato fertilizer. The device for producing small-molecule organic water-soluble potato fertilizer and the fifteenth conveyor are controlled and connected to the intelligent control device.

[0023] In a preferred embodiment of this utility model, the circulating water produced by the reclaimed water production device meets the national standard GB / T19923-2024 industrial water standard.

[0024] In a preferred embodiment of this utility model, the dryer dehydrates wet potato peels at a low temperature of 70°C-80°C to form dry potato peels, which are then sent out.

[0025] In a preferred embodiment of this utility model, the low-temperature puffing machine puffs and pulverizes dried potato peels at a low temperature of 70°C-80°C to form puffed potato peels which are then sent out.

[0026] In a preferred embodiment of this utility model, sodium bisulfite or sodium metabisulfite, an anti-browning reaction agent, is added from the feeding inlet of the potato pulp rotary paddle vacuum dehydrator. The amount added is 0.1% to 0.5% of the dehydrated potato powder, and the moisture content of the dehydrated potato powder is controlled at 30% to 50%.

[0027] In a preferred embodiment of this utility model, one or two of the deodorized soybean flour and wheat gluten flour are added to one inlet of the automatic metering and batching machine for wet soybean flour. The amount (mass) added is controlled according to 10%-15% of the protein in the prepared potato flour (dry basis). The amount (mass) of added dietary fiber is 4%-10% of the prepared potato flour (dry basis).

[0028] In a preferred embodiment of this utility model, the mixing temperature of the internal mixer is 60℃-80℃, and the mixing time is controlled between 1h and 5h.

[0029] In a preferred embodiment of this utility model, the drying temperature of the low-temperature dryer is 70℃-150℃, and the moisture content is controlled at ≤10%.

[0030] In a preferred embodiment of this utility model, the packaged dried potato powder is flavored with edible flavorings or seasonings before being repackaged, such as spicy, seafood, various meat flavors, five-spice, or rice flavors.

[0031] In a preferred embodiment of this utility model, edible flavoring is used for seasoning, and the amount (by mass) of edible flavoring is from one ten-thousandth to five ten-thousandths.

[0032] In a preferred embodiment of this utility model, the complete set of equipment for processing fresh potatoes into staple food potato flour is also applicable to processing fresh sweet potatoes into staple food sweet potato flour.

[0033] Due to the adoption of the above technical solution, the complete set of equipment for processing fresh potatoes into staple potato flour has the following advantages:

[0034] 1. The innovative advantage of this utility model is that the processing of fresh potatoes into potato flour, a staple food, utilizes green whole-industry chain processing technology. The washing water is treated into reclaimed water for recycling, and rotten potatoes are processed into feed raw materials or small-molecule organic water-soluble potato-specific fertilizer. The potato peels are fully utilized after processing, and the processing results in the generation of no wastewater, waste gas, or waste residue.

[0035] 2. The innovation and advantages of this utility model also include solving the problem of low protein content in fresh potatoes, and processing them into staple food so that the protein content is not lower than that of the three major staple foods: corn, wheat and rice.

[0036] 3. The innovation and advantages of this utility model also include the ability to season the finished product with various edible seasonings or flavorings before packaging to meet the taste needs of different groups of people. Potato rice can also be made by extrusion granulation before packaging. Attached Figure Description

[0037] To more clearly illustrate the technical solution and embodiments of this utility model, those skilled in the art will refer to the process flow of this utility model. Figure 1 Other attached images are also available.

[0038] Figure 1 This is a process flow diagram of a complete set of equipment for processing fresh potatoes into potato flour, a staple food, according to this utility model. Detailed Implementation

[0039] Combination Figure 1 The present invention will be further illustrated with specific embodiments.

[0040] Example 1

[0041] See Figure 1 The diagram shows a complete set of equipment for making potato flour from fresh potatoes. The fresh potatoes are first conveyed by a flatbed conveyor to a fresh potato optical recognition sorting machine 1 for sorting. The robotic arm of the fresh potato optical recognition sorting machine 1 separates rotten potatoes from good fresh potatoes. Rotten potatoes are discharged from the rotten potato outlet side of the fresh potato optical recognition sorting machine 1, and then fed to the feed processing unit 11 via the thirteenth conveyor and the first rotten potato inlet side of the feed processing unit to produce known feed, or fed to the small molecule organic water-soluble potato fertilizer processing unit 12 via the fourteenth conveyor and the second rotten potato inlet side of the small molecule organic water-soluble potato fertilizer processing unit to produce one or both of the known small molecule organic water-soluble potato fertilizers.

[0042] Fresh potatoes are fed out from the output side of the fresh potato light recognition sorting machine 1. The fresh potatoes fed out from the output side of the fresh potato light recognition sorting machine 1 are conveyed to the washing and peeling machine 2 via the flat conveyor (the aforementioned first conveyor) and the inlet side of the washing and peeling machine 2. The washing and peeling machine 2 receives the fresh potatoes fed out from the output side of the fresh potato light recognition sorting machine 1 and washes and peels the fresh potatoes.

[0043] The separated wet potato peels are sent out from the wet potato peel outlet of the washing and peeling machine 2, and then sent to the dryer 13 for low-temperature drying via the screw conveyor (the aforementioned sixth conveyor) and the wet potato peel inlet of the dryer 13. The dryer 13 dehydrates the wet potato peels at a low temperature of 70°C to form dry potato peels, which are then sent out from the dry potato peel outlet of the dryer 13.

[0044] The dried potato peels from the dry potato peel outlet of dryer 13 are fed into low-temperature puffing machine 7 via the seventh conveyor and the dry potato peel inlet of the known low-temperature puffing machine 7. After being puffed and crushed at a low temperature of 70°C, the puffed potato peels are sent out through the puffed potato peel outlet of low-temperature puffing machine 7.

[0045] The puffed potato peels sent out from the puffed potato peel outlet of the low-temperature puffing machine 7 are then fed into the internal mixer 6 by the screw conveyor (the aforementioned ninth conveyor) and the puffed potato peel inlet of the internal mixer 6 for later use.

[0046] After peeling and washing, the potatoes are sent out of the peeling and washing machine 2. The peeled and washed potatoes sent out of the peeling and washing machine 1 are then conveyed to the crushing and pulping machine 3 via a screw conveyor (the aforementioned second conveyor) and the feed side of the crushing and pulping machine 3. The crushing and pulping machine 3 receives the peeled and washed potatoes sent out of the peeling and washing machine 1 and pulps them to form potato pulp, which is then sent out of the potato pulp outlet of the crushing and pulping machine 3.

[0047] The cleaning water from the potato washing and peeling machine 2 flows into the machine through its clean water inlet, and the clean water flows out through its post-cleaning water outlet. This post-cleaning water then flows into the reclaimed water production device 14 via a thirteenth conveyor (pipeline and pump) and the post-cleaning water inlet. The circulating water produced by the reclaimed water production device 14 meets the national standard GB / T19923-2024 for industrial water. The circulating water (reclaimed water) produced by the reclaimed water production device 14 is fed into the washing and peeling machine for reuse through both its circulating water outlet and the circulating water inlet.

[0048] The potato pulp from the potato pulp outlet of the crusher 3 is pumped, piped, and valved (the aforementioned third conveyor) and then conveyed to the potato pulp inlet of the rotary paddle vacuum dewatering machine 4. Sodium bisulfite, an anti-browning reactant, is first added to the rotary paddle vacuum dewatering machine 4 at a mass of 0.25% of the potato pulp. The machine then dehydrates the potato pulp to obtain dehydrated potato flour. Once the dehydrated potato flour has a moisture content of 50%, it is discharged from the potato flour outlet of the rotary paddle vacuum dewatering machine 4.

[0049] The dehydrated potato flour from the potato flour outlet of the rotary paddle vacuum dehydrator 4 is fed into the automatic wet soybean flour metering and batching machine 5 via a screw conveyor (the aforementioned fifth conveyor) through one inlet. Simultaneously, one or both of deodorized soybean flour and wheat gluten flour are added from the other inlet of the automatic wet soybean flour metering and batching machine 5. The amount (by weight) added is controlled at 10% of the protein content (dry basis) of the prepared potato flour, and the amount (by weight) added is controlled at 4% of the prepared potato flour (dry basis). The prepared potato flour is then discharged from the outlet of the automatic wet soybean flour metering and batching machine 5.

[0050] The water extracted by the potato pulp rotary paddle vacuum dewatering machine 4 flows out from the outlet of the potato pulp rotary paddle vacuum dewatering machine 4 and flows into the crushing and pulping machine 3 for recycling through the fourth conveyor and the potato pulp circulating water inlet of the crushing and pulping machine 3.

[0051] The prepared potato starch, delivered from the outlet of the automatic metering and batching machine 5 for wet soybean starch, is fed into the internal mixer 6 via a screw conveyor (the aforementioned eighth conveyor) through the inlet of the internal mixer 6. It is then mixed together with the puffed potato skins fed into the internal mixer 6. The mixing temperature is controlled at 80℃ and the mixing time is controlled at 3 hours.

[0052] After being thoroughly mixed in the internal mixer 6, the potato starch is discharged from the potato starch outlet of the internal mixer 6. The potato starch discharged from the potato starch outlet of the internal mixer 6 is then fed into the low-temperature dryer 7 via the screw conveyor (the aforementioned tenth conveyor) through the potato starch inlet of the low-temperature dryer 7 for low-temperature heating. The low-temperature dryer 7 is a fluidized bed heater, with the low-temperature heating temperature controlled at 120℃ and the low-temperature heating moisture content controlled at 8%. The dried potato starch after low-temperature drying in the low-temperature dryer 7 is discharged from the dried potato starch outlet of the low-temperature dryer 7.

[0053] The dried potato powder delivered from the outlet of the low-temperature dryer 7 is fed into the automatic finished product metering and packaging machine 8 via the screw conveyor (the aforementioned eleventh conveyor) and the dry potato powder inlet of the automatic finished product metering and packaging machine 8 for ton bag packaging. The ton bag-packaged dried potato powder is then sent out from the output side of the packaged dried potato powder of the automatic finished product metering and packaging machine 8.

[0054] The dried potato powder packaged in ton bags from the output side of the finished product automatic metering and packaging machine 8 is fed into the palletizing and warehousing machine 9 by the input side of the packaged and mixed potato powder.

[0055] The intelligent control device 10 is connected to the flat conveyor, the first to fifteenth conveyors, the potato light recognition and sorting machine 1, the washing and peeling linkage machine 2, the crushing and pulping machine 3, the potato pulp rotary paddle vacuum dewatering machine 4, the automatic metering and batching machine for wet soybean flour 5, the dryer 13, the low temperature puffing machine 7, the internal mixer 6, the finished product automatic metering and packaging machine 8, the conveying, palletizing and warehousing linkage machine 9, the feed making device 11, the small molecule organic water-soluble potato fertilizer making device 12, and the reclaimed water making device 14 for intelligent and fully automatic control. The ton bags of fresh potato flour in the warehouse can be repackaged into smaller packages after leaving the warehouse. Before repackaging, the potatoes can be seasoned with edible seasonings or flavorings, such as spicy, seafood, various meat flavors, and five-spice flavor. If using flavorings, the amount (by weight) of the flavorings should be controlled at 0.02% before repackaging. Before repackaging, potato pellets can also be made using an extrusion granulator.

[0056] Example 2

[0057] See Figure 1The diagram shows a complete set of equipment for making potato flour from fresh potatoes. The fresh potatoes are first conveyed by a flatbed conveyor to a fresh potato optical recognition sorting machine 1 for sorting. The robotic arm of the fresh potato optical recognition sorting machine 1 separates rotten potatoes from good fresh potatoes. Rotten potatoes are discharged from the rotten potato outlet side of the fresh potato optical recognition sorting machine 1, and then fed to the feed processing unit 11 via the thirteenth conveyor and the first rotten potato inlet side of the feed processing unit to produce known feed, or fed to the small molecule organic water-soluble potato fertilizer processing unit 12 via the fourteenth conveyor and the second rotten potato inlet side of the small molecule organic water-soluble potato fertilizer processing unit to produce one or both of the known small molecule organic water-soluble potato fertilizers.

[0058] Fresh potatoes are fed out from the output side of the fresh potato light recognition sorting machine 1. The fresh potatoes fed out from the output side of the fresh potato light recognition sorting machine 1 are conveyed to the washing and peeling machine 2 via the flat conveyor (the aforementioned first conveyor) and the inlet side of the washing and peeling machine 2. The washing and peeling machine 2 receives the fresh potatoes fed out from the output side of the fresh potato light recognition sorting machine 1 and washes and peels the fresh potatoes.

[0059] The separated wet potato peels are sent out from the wet potato peel outlet of the washing and peeling machine 2, and then sent to the dryer 13 for low-temperature drying via the screw conveyor (the aforementioned sixth conveyor) and the wet potato peel inlet of the dryer 13. The dryer 13 dehydrates the wet potato peels at a low temperature of 70°C to form dry potato peels, which are then sent out from the dry potato peel outlet of the dryer 13.

[0060] The dried potato peels from the dry potato peel outlet of dryer 13 are fed into low-temperature puffing machine 7 via the seventh conveyor and the dry potato peel inlet of the known low-temperature puffing machine 7. After being puffed and crushed at a low temperature of 70°C, the puffed potato peels are sent out through the puffed potato peel outlet of low-temperature puffing machine 7.

[0061] The puffed potato peels sent out from the puffed potato peel outlet of the low-temperature puffing machine 7 are then fed into the internal mixer 6 by the screw conveyor (the aforementioned ninth conveyor) and the puffed potato peel inlet of the internal mixer 6 for later use.

[0062] After peeling and washing, the potatoes are sent out of the peeling and washing machine 2. The peeled and washed potatoes sent out of the peeling and washing machine 1 are then conveyed to the crushing and pulping machine 3 via a screw conveyor (the aforementioned second conveyor) and the feed side of the crushing and pulping machine 3. The crushing and pulping machine 3 receives the peeled and washed potatoes sent out of the peeling and washing machine 1 and pulps them to form potato pulp, which is then sent out of the potato pulp outlet of the crushing and pulping machine 3.

[0063] The cleaning water from the potato washing and peeling machine 2 flows into the machine through its clean water inlet, and the clean water flows out through its post-cleaning water outlet. This post-cleaning water then flows into the reclaimed water production device 14 via a thirteenth conveyor (pipeline and pump) and the post-cleaning water inlet. The circulating water produced by the reclaimed water production device 14 meets the national standard GB / T19923-2024 for industrial water. The circulating water (reclaimed water) produced by the reclaimed water production device 14 is fed into the washing and peeling machine for reuse through both its circulating water outlet and the circulating water inlet.

[0064] The potato pulp from the potato pulp outlet of the crusher 3 is pumped through a pump, pipe, valve (the aforementioned third conveyor), and into the potato pulp inlet of the rotary paddle vacuum dewatering machine 4. Sodium bisulfite, an anti-browning reactant, is first added to the rotary paddle vacuum dewatering machine 4 at a mass of 0.2% of the potato pulp. The machine then dehydrates the potato pulp to obtain dehydrated potato flour. Once the dehydrated potato flour has a moisture content of 50%, it is discharged from the potato flour outlet of the rotary paddle vacuum dewatering machine 4.

[0065] The dehydrated potato flour from the potato flour outlet of the rotary paddle vacuum dehydrator 4 is fed into the automatic wet soybean flour metering and batching machine 5 via a screw conveyor (the aforementioned fifth conveyor) through one inlet. Simultaneously, 50% each of deodorized soybean flour and wheat gluten flour are added from the other inlet of the automatic wet soybean flour metering and batching machine 5. The amount (by weight) added is controlled according to 15% of the protein content (dry basis) of the batched potato flour, and the amount (by weight) of added dietary fiber is controlled at 5% of the batched potato flour (dry basis). The batched potato flour is then discharged from the outlet of the automatic wet soybean flour metering and batching machine 5.

[0066] The water extracted by the potato pulp rotary paddle vacuum dewatering machine 4 flows out from the outlet of the potato pulp rotary paddle vacuum dewatering machine 4 and flows into the crushing and pulping machine 3 for recycling through the fourth conveyor and the potato pulp circulating water inlet of the crushing and pulping machine 3.

[0067] The prepared potato starch, delivered from the outlet of the automatic metering and batching machine 5 for wet soybean starch, is fed into the internal mixer 6 via a screw conveyor (the aforementioned eighth conveyor) through the inlet of the internal mixer 6. It is then mixed together with the puffed potato skins fed into the internal mixer 6. The mixing temperature is controlled at 70°C and the mixing time is controlled at 4 hours.

[0068] After being thoroughly mixed in the internal mixer 6, the potato starch is discharged from the potato starch outlet of the internal mixer 6. The potato starch discharged from the potato starch outlet of the internal mixer 6 is then fed into the low-temperature dryer 7 via the screw conveyor (the aforementioned tenth conveyor) through the potato starch inlet of the low-temperature dryer 7 for low-temperature heating. The low-temperature dryer 7 is a fluidized bed heater, with the low-temperature heating temperature controlled at 130℃ and the low-temperature heating moisture content controlled at 8%. The dried potato starch after low-temperature drying in the low-temperature dryer 7 is discharged from the dried potato starch outlet of the low-temperature dryer 7.

[0069] The dried potato powder delivered from the outlet of the low-temperature dryer 7 is fed into the automatic finished product metering and packaging machine 8 via the screw conveyor (the aforementioned eleventh conveyor) and the dry potato powder inlet of the automatic finished product metering and packaging machine 8 for ton bag packaging. The ton bag-packaged dried potato powder is then sent out from the output side of the packaged dried potato powder of the automatic finished product metering and packaging machine 8.

[0070] The dried potato powder packaged in ton bags from the output side of the finished product automatic metering and packaging machine 8 is fed into the palletizing and warehousing machine 9 by the input side of the packaged and mixed potato powder.

[0071] The intelligent control device 10 is connected to the flatbed conveyor, the first to fifteenth conveyors, the potato light recognition and sorting machine 1, the washing and peeling linkage machine 2, the crushing and pulping machine 3, the potato pulp rotary paddle vacuum dewatering machine 4, the automatic metering and batching machine for wet soybean flour 5, the dryer 13, the low-temperature puffing machine 7, the internal mixer 6, the finished product automatic metering and packaging machine 8, the conveying, palletizing and warehousing linkage machine 9, the feed making device 11, the small molecule organic water-soluble potato fertilizer making device 12, and the reclaimed water making device 14, enabling intelligent and fully automatic control throughout the process. The bulk-packaged fresh potato flour in ton bags can be repackaged into smaller packages after leaving the warehouse. Before repackaging, it can be seasoned with edible seasonings or flavorings, such as spicy, seafood, various meat flavors, and five-spice flavor. If using flavorings, the amount (by weight) of the flavorings should be controlled to 0.02% before repackaging. Before repackaging, potato pellets can also be produced using an extrusion granulator.

[0072] The complete set of equipment for processing fresh potatoes into staple food potato flour as described in Examples 1 and 2 is also applicable to processing fresh sweet potatoes into staple food sweet potato flour.

[0073] The above description is only a preferred embodiment of the present utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be within the protection scope of the present utility model.

Claims

1. A complete set of equipment for processing fresh potatoes into main meal potato whole flour, characterized in that, include: A potato light-based identification sorting machine is used to sort fresh potatoes. The potato light-based identification sorting machine has a good fresh potato discharge side and a rotten potato discharge side. The good fresh potato discharge side and the rotten potato discharge side separate the good fresh potatoes and send them out. A washing and peeling machine is provided, wherein the feed side of the washing and peeling machine is connected to the fresh potato output side of the potato light recognition sorting machine via a first conveyor, and receives the fresh potatoes sent out from the fresh potato output side of the potato light recognition sorting machine; the washing and peeling machine has a clean water inlet, a clean water outlet, a wet potato peel outlet, and a peeled and cleaned potato outlet, wherein the clean water inlet supplies washing water, the clean water outlet supplies clean water, the potato peel outlet supplies potato peel, and the peeled and cleaned potato outlet supplies peeled and cleaned potatoes. The crushing and pulping machine has a feed side connected to the peeled and washed potato outlet via a second conveyor. It receives the peeled and washed potatoes from the peeling and washing machine and pulps them. The crushing and pulping machine has a potato pulp outlet and a potato pulp circulating water inlet. A rotary paddle vacuum dewatering machine for potato pulp has a potato pulp inlet, a water outlet, a potato flour outlet, and a feed inlet. The potato pulp inlet of the rotary paddle vacuum dewatering machine is connected to the potato pulp outlet of the crushing and pulping machine via a third conveyor. The water outlet of the rotary paddle vacuum dewatering machine is connected to the potato pulp circulating water inlet of the crushing and pulping machine via a fourth conveyor. The water extracted by the rotary paddle vacuum dewatering machine is sent to the crushing and pulping machine for recycling. The potato flour outlet delivers dehydrated potato flour. An automatic metering and batching machine for wet soybean flour has several inlets and one outlet. One inlet is connected to the potato flour outlet of a rotary paddle vacuum dewatering machine via a fifth conveyor, receiving the dehydrated potato flour from the outlet. The other inlets are used to feed different ingredients. The batched potato flour is then discharged from the outlet of the automatic metering and batching machine. A dryer having a wet potato peel inlet and a dry potato peel outlet, wherein the wet potato peel inlet of the dryer is connected to the wet potato peel outlet of the washing and peeling linkage machine via a sixth conveyor, which receives the wet potato peels sent out by the potato peel outlet of the washing and peeling linkage machine, dries the wet potato peels, and then sends them out by the dry potato peel outlet of the dryer. A low-temperature puffing machine has a dry potato peel inlet and a puffed potato peel outlet. The dry potato peel inlet of the low-temperature puffing machine is connected to the dry potato peel outlet of the dryer through a seventh conveyor, which receives the dry potato peels sent out from the dryer's dry potato peel outlet and puffs the dry potato peels at low temperature. The puffed potato peels are sent out through the puffed potato peel outlet. The internal mixer has a pre-mixed potato flour inlet, an extruded potato peel inlet, and a mixed potato flour outlet. The pre-mixed potato flour inlet of the internal mixer is connected to the outlet of the automatic metering and batching machine for wet soybean flour via an eighth conveyor. The extruded potato peel inlet of the internal mixer is connected to the extruded potato peel outlet of the low-temperature extruder via a ninth conveyor. The pre-mixed potato flour and extruded potato peel are mixed in the internal mixer, and the mixed potato flour is discharged from the mixed potato flour outlet. A low-temperature dryer has a potato flour inlet and a dried potato flour outlet. The potato flour inlet of the low-temperature dryer is connected to the potato flour outlet of the mixer via a tenth conveyor. The conveyor receives the potato flour sent from the potato flour inlet of the low-temperature dryer and dries it at low temperature to form dried potato flour, which is then sent out from the dried potato flour outlet. An automatic metering and packaging machine for finished products has a dry potato starch inlet and a packaged dry potato starch outlet. The dry potato starch inlet of the automatic metering and packaging machine is connected to the dry potato starch outlet of the low-temperature dryer through an eleventh conveyor, which receives and packages the dry potato starch sent out from the dry potato starch outlet of the low-temperature dryer. The packaged dry potato starch is sent out from the packaged dry potato starch outlet of the automatic metering and packaging machine. The conveying and palletizing warehousing linkage machine has a packaged, mixed potato starch input side. The packaged, mixed potato starch input side of the conveying and palletizing warehousing linkage machine is connected to the packaged, mixed potato starch output side of the finished product automatic metering and packaging machine through a twelfth conveyor to stack and store the packaged, mixed potato starch. The intelligent control device is connected to the potato light recognition sorting machine, the washing and peeling linkage machine, the crushing and pulping machine, the potato pulp rotary paddle vacuum dewatering machine, the automatic metering and batching machine for wet soybean flour, the dryer, the low temperature puffing machine, the internal mixer, the automatic metering and packaging machine for finished products, the conveying, palletizing and warehousing linkage machine, and the first to twelfth conveyors to achieve intelligent full-process automatic control.

2. A complete set of equipment for processing fresh potatoes into main food potato whole powder according to claim 1, characterized in that, It also includes a reclaimed water production device, which has a post-wash water inlet and a circulating water outlet. The washing and peeling machine also has a circulating water inlet. The post-wash water inlet of the reclaimed water production device and the post-wash water outlet of the washing and peeling machine are connected through a thirteenth conveyor to receive the post-wash water sent by the washing and peeling machine and regenerate it. The reclaimed water is sent into the washing and peeling machine for circulation and reuse through the circulating water outlet of the reclaimed water production device and the circulating water inlet of the washing and peeling machine. The reclaimed water production device and the thirteenth conveyor are controlled and connected to the intelligent control device.

3. A complete set of equipment for processing fresh potatoes into main food potato whole powder according to claim 2, characterized in that, The circulating water produced by the aforementioned reclaimed water production device meets the national standard GB / T19923-2024 for industrial water use.

4. A complete set of equipment for processing fresh potatoes into main food potato whole powder according to claim 2, characterized in that, The dryer dehydrates wet potato peels at a low temperature of 70℃-80℃ to form dry potato peels, which are then sent out.

5. A complete set of equipment for processing fresh potatoes into main food potato whole powder according to claim 2, characterized in that, The low-temperature puffing machine puffs and pulverizes dried potato peels at a low temperature of 70℃-80℃ to form puffed potato peels, which are then sent out.

6. A complete set of equipment for processing fresh potatoes into main food potato whole powder according to claim 2, characterized in that, Add either sodium bisulfite or sodium metabisulfite, an anti-browning reaction agent, to the feed inlet of the potato pulp rotary paddle vacuum dehydrator. The amount added is 0.1% to 0.5% of the dehydrated potato flour, and the moisture content of the dehydrated potato flour is controlled at 30% to 50%.

7. A complete set of equipment for processing fresh potatoes into main food potato whole powder according to claim 2, characterized in that, The automatic metering and batching machine for wet soybean flour adds one or two kinds of soybean flour and wheat gluten flour to one of its feed inlets. The amount added is controlled according to the protein content of the prepared dry-based potato flour at 10%-15%. The amount of dietary fiber added is 4%-10% of the prepared dry-based potato flour.

8. A complete set of equipment for processing fresh potatoes into main food potato whole powder according to claim 2, characterized in that, The mixing temperature of the internal mixer is 60℃-80℃, and the mixing time is controlled between 1h and 5h.

9. A complete set of equipment for processing fresh potatoes into main food potato whole powder according to claim 2, characterized in that, The drying temperature of the low-temperature dryer is 70℃-150℃, and the moisture content is controlled at ≤10%.

10. A complete set of equipment for processing fresh potatoes into main food potato whole powder according to claim 2, characterized in that, Before being repackaged, the dried potato starch is flavored with edible flavorings or seasonings, such as spicy, seafood, meat, five-spice, or rice flavors.

11. A complete set of equipment for processing fresh potatoes into main food potato whole powder according to claim 2, characterized in that, It is flavored with edible flavoring, with the amount of edible flavoring added ranging from 0.01% to 0.05% by weight.

12. The complete equipment for processing fresh potato into main meal potato powder according to any one of claims 1 to 11, characterized in that, The same applies to processing fresh sweet potatoes into sweet potato flour, a staple food.