CN220734377U

CN220734377U - Pea fiber production system

Info

Publication number: CN220734377U
Application number: CN202322472657.5U
Authority: CN
Inventors: 鲍大权; 余新成; 李宝龙; 张飞
Original assignee: Myande Group Co Ltd
Current assignee: Myande Group Co Ltd
Priority date: 2023-09-12
Filing date: 2023-09-12
Publication date: 2024-04-09
Anticipated expiration: 2033-09-12

Abstract

The utility model discloses a pea fiber production system, wherein an outlet of a soaking discharging buffer tank is connected with an inlet of a primary germ cyclone through a soaking discharging pump; the cyclone underflow outlet is connected with the inlet of the gravity dewatering curved sieve, the curved sieve dry matter outlet is connected with the inlet of the pea buffer hopper, the pea buffer hopper outlet is connected with the inlet of the pin mill discharge tank through the pin mill, the pin mill discharge tank outlet is connected with the inlet of the primary fiber washing sieve through the pin mill discharge pump, the primary sieve upper outlet is connected with the inlet of the primary fiber tank, the primary fiber tank outlet is connected with the inlet of the secondary fiber washing sieve through the primary fiber conveying pump, the secondary fiber washing sieve upper outlet is connected with the inlet of the secondary fiber tank, the secondary fiber tank outlet is connected with the inlet of the fiber dewatering horizontal spiral centrifuge through the secondary fiber conveying pump, and the fiber outlet of the fiber dewatering horizontal spiral centrifuge is connected with the fiber drying unit. The product of the system has good quality, can be used as dietary fiber, and has good economic benefit.

Description

Pea fiber production system

Technical Field

The utility model relates to a pea fiber production system, and belongs to the technical field of pea processing systems.

Background

Dietary fiber is a polysaccharide that is neither digested nor absorbed by the gastrointestinal tract nor can it generate energy. Therefore, it has once been regarded as a "nutrient-free" and has long not received sufficient attention. However, with the intensive development of nutrition and related science, dietary fibers have been increasingly found to have a considerable physiological role. So that the dietary fiber becomes a substance of interest to academia and common people today with finer dietary composition, and is complemented and identified by the nutrition community as a seventh nutrient, and the conventional six nutrients, namely protein, fat, carbohydrate, vitamin, mineral and water are juxtaposed.

The dietary fiber is commonly called as coarse food grain, has important physiological function in human body, can effectively clean intestinal tracts, and has good effects in preventing gastrointestinal diseases and maintaining gastrointestinal health. The pea dietary fiber has good water retention, emulsifying property, suspension property, thickening property and expansion force, can improve the water retention and shape retention of food, and improves the freezing and thawing stability. As a functional food ingredient, the crispness, the expansibility and the shelf life of the food can be increased after the functional food ingredient is added. Is widely applied to the fields of making seasonings, cake stuffing, meat ball stuffing, healthy weight-reducing products and the like.

The Chinese patent application with publication number of CN115304682A discloses an energy-saving pea starch extraction method, which comprises the following operation steps: peeling and grinding: peeling pea seeds, and grinding to obtain pea powder; preparing powder slurry: adding water into the prepared pea powder, and uniformly stirring to obtain powder slurry; soaking and leaching: placing the prepared slurry into a stirrer, stirring once at intervals, repeating for multiple times, and standing for precipitation; primary screening: removing the supernatant in the product obtained in the last step, adding water, uniformly stirring, and sieving to obtain slurry; secondary screening: standing the slurry for precipitation, removing part of supernatant, uniformly stirring, and sieving again; cyclone separation: centrifuging the product obtained in the last step and removing supernatant to obtain precipitate; and (3) drying: the precipitate was dried.

The defects of the utility model application are that: 1. the screened fiber is not treated, is directly sold as wet feed, and has low added value; 2. the dietary fiber is obtained without washing, dehydrating and drying the fiber.

The Chinese patent publication No. CN105494884B discloses a soybean protein production method, which adopts a secondary acid precipitation mode to extract, wherein the pH value of the acid precipitation liquid is regulated to 5.5-6.3 in the primary acid precipitation step, and the pH value of the acid precipitation liquid is regulated to 4.5-4.6 in the secondary acid precipitation step. Compared with the traditional acid precipitation method, the content of the bean whey solids is obviously reduced, and the protein loss amount of ton bean whey is reduced, namely the loss amount of acid precipitation protein is reduced, so that the yield of the protein is increased. And the precipitation speed of the acid precipitation solution is obviously faster than that of the traditional method by adopting a secondary acid precipitation treatment mode. In the deep processing process of soybean, the oil and fat are extracted by adding a solvent, so that the deep processed soybean fiber cannot be used as dietary fiber.

The pea fiber has better taste, color, fineness, water absorbability and the like than other plant fibers, and has high market value. Most pea processing enterprises sell wet fiber directly to local farmers at a market price of about 500 yuan/ton (12% moisture). If the fiber is dried, it is purchased as a feed, the market price is about 2200 yuan/ton (12% moisture). If the dietary fiber is extracted by washing, the market price is about 5500 yuan/ton (12% water).

Disclosure of Invention

The utility model aims to overcome the problems in the prior art and provide a pea fiber production system, which has high yield of pea fiber and good quality, and the product can be used as dietary fiber with good economic benefit.

In order to solve the technical problems, the pea fiber production system comprises a pea soaking unit, wherein an outlet of the pea soaking unit is connected with an inlet of a soaking discharging buffer tank, an outlet of the soaking discharging buffer tank is connected with an inlet of a soaking discharging pump, and an outlet of the soaking discharging pump is connected with an inlet of a primary germ cyclone; the underflow outlet of the primary germ cyclone is connected with the inlet of the gravity dewatering curved screen, the dry outlet of the gravity dewatering curved screen is connected with the inlet of the pea buffer hopper, the outlet of the pea buffer hopper is connected with the inlet of the pin mill, the outlet of the pin mill is connected with the inlet of the pin mill discharge tank, the outlet of the pin mill discharge tank is connected with the inlet of the primary fiber washing screen through the pin mill discharge pump, the screen outlet of the primary fiber washing screen is connected with the inlet of the primary fiber tank, the outlet of the primary fiber tank is connected with the inlet of the secondary fiber washing screen through the primary fiber conveying pump, the screen outlet of the secondary fiber washing screen is connected with the inlet of the secondary fiber tank, the outlet of the secondary fiber tank is connected with the inlet of the fiber dewatering horizontal spiral shell centrifuge through the secondary fiber conveying pump, and the fiber outlet of the fiber dewatering horizontal spiral shell centrifuge is connected with the fiber drying unit.

In the pea soaking unit, a discharge hole of a stone removing tank is connected with an inlet of a bean water conveying pump, an outlet pipeline of the bean water conveying pump is connected with a feed hole of each soaking tank, a lactic acid injection pipe is further connected to the upper end of each soaking tank, a bottom outlet of each soaking tank is connected with an inlet of a soaking liquid circulating pump and a soaking liquid return pipe, an outlet of the soaking liquid return pipe is connected with an inlet of a soaking liquid return pump, and an outlet pipeline of the soaking liquid return pump is connected with a water inlet of the stone removing tank.

As a further improvement of the utility model, the water outlet of the gravity dewatering curved screen is connected with a process water return pipe, and the outlet of the process water return pipe is respectively connected with the bottom outlet of each soaking tank.

As a further improvement of the utility model, the undersize outlet of the secondary fiber washing screen is connected to the inlet of the primary fiber tank, and the undersize outlet of the primary fiber washing screen is connected to an amyloid separation unit.

As a further improvement of the utility model, in the fiber drying unit, a fiber outlet of the fiber dewatering horizontal decanter centrifuge is connected with an inlet of a fiber collecting buffer hopper, an outlet of the fiber collecting buffer hopper is connected with an inlet of a fiber lifter through a feeder, an outlet of the fiber lifter is connected with an inlet of a fiber collecting brake by a fiber drying air net, a hot air inlet of the fiber drying air net is connected with an outlet of an air heater, and an inlet of the air heater is communicated with the atmosphere through an air filter;

the tail gas outlet of the fiber collection brake is communicated with the atmosphere through a fiber drying induced draft fan, the bottom outlet of the fiber collection brake is connected with the inlet of a fiber crusher through a fiber discharging air shutter and a fiber iron remover, the outlet of the fiber crusher is connected with a fiber conveying air net, the outlet of the fiber conveying air net is connected with the inlet of the fiber discharging brake, the top outlet of the fiber discharging brake is connected with the inlet of a fiber discharging pulse dust remover, and the top outlet of the fiber discharging pulse dust remover is communicated with the atmosphere through a fiber discharging induced draft fan; the bottom of the fiber discharging brake dragon and the fiber discharging pulse dust remover are respectively connected with the fiber discharging hopper through a fiber discharging air shutter.

As a further improvement of the utility model, the bottom of the fiber discharging hopper is connected with the inlet of the fiber packing scale through an electric valve, the top exhaust port of the fiber packing scale and the top exhaust port of the fiber discharging hopper are both connected with the inlet of the fiber packing pulse dust collector, and the outlet of the fiber packing pulse dust collector is communicated with the atmosphere through a fiber packing dust removing fan.

Compared with the prior art, the utility model has the following beneficial effects: 1. the peas are soaked by adding lactic acid, so that alkali is not needed; the countercurrent soaking process is adopted, so that the water consumption is lower, and the whole grain pea soaking process is adopted, so that the loss of dry matters is less.

2. The needle mill is adopted to replace the traditional grinding mill, so that the yield is high and the energy consumption is lower; avoid grinding the easy card of mill and the big defect of power consumption. The needle mill pulverizes starch and protein in peas to 50 microns, the broken peas fiber has large particles, easy dehydration and low steam consumption, and the peas fiber can be used as dietary fiber.

3. And conveying soaked peas to a germ cyclone through a pump for separation, extracting germs, extracting and washing the germs twice, and then, drying the germs in a germ dryer to obtain commercial peas. The pea embryo is named as soft gold, the yield is small, the value is very high, the economic benefit is improved, and the downstream processing load is reduced.

4. The horizontal screw centrifuge is adopted to replace the traditional plate-and-frame filter press for fiber dehydration, so that the labor intensity is low and the automation degree is high. And then drying by using an air dryer, and taking the product as dietary fiber after superfine grinding.

5. Adopting a horizontal screw centrifuge to carry out fiber dehydration, and reducing the water content to 72% after dehydration; the horizontal decanter centrifuge is used for continuously feeding and continuously discharging, so that microorganism breeding caused by material residues is avoided. And then the fiber is dried by adopting an air flow dryer, the material drying time is short, the color change is light, the environmental sanitation is good, and the water content of the product is 12%.

6. The dried fiber enters a packaging system for packaging, and the obtained pea fiber can be sold as dietary fiber, and the selling price of the pea fiber is 5500 yuan/ton and is 2.5 times of that of common fiber.

Drawings

The utility model will now be described in further detail with reference to the drawings and the detailed description, which are provided for reference and illustration only and are not intended to limit the utility model.

FIG. 1 is a flow chart of a pea infusion unit according to the utility model;

FIG. 2 is a flow chart of a pea crushing and defibration washing unit according to the utility model;

FIG. 3 is a flow chart of a fiber dewatering and drying packaging unit of the present utility model;

in the figure: pea soaking unit: 101. a stone removing groove; 102. a bean water delivery pump; 103. a soaking tank; 104. a soak solution circulating pump; 105. a soak solution heater; 106. a soaking liquid reflux pump; 107. soaking a discharging buffer tank; 108. a soaking discharging pump; 109. a process water return pipe;

201. a primary germ cyclone;

pea crushing unit: 301. gravity dewatering curved screen; 302. pea buffer hoppers; 303. needle mill; 304. needle grinding discharge tank; 305. a needle mill discharge pump;

a fiber separation washing and dehydrating unit: 401. a primary fiber washing screen; 402. a primary fiber tank; 403. a primary fiber transfer pump; 404. a secondary fiber washing screen; 405. a secondary fiber tank; 406. a secondary fiber transfer pump; 407. a fiber dewatering decanter centrifuge;

fiber drying and packaging unit: 501. a fiber collection buffer bucket; 502. a fiber lifter; 503. a fiber drying air net; 504. an air filter; 505. an air heater; 506. collecting fiber to obtain a brake dragon; 507. a fiber drying induced draft fan; 508. a fiber iron remover; 509. a fiber pulverizer; 510. fiber discharging brake dragon; 511. a fiber discharging pulse dust collector; 512. a fiber discharging induced draft fan; 513. a fiber discharge hopper; 514. fiber packing scale; 515. a fiber packaging pulse dust collector; 516. fiber package dust removal fan.

Description of the embodiments

In the following description of the present utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not mean that the device must have a specific orientation.

The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

As shown in fig. 1 to 3, the pea fiber production system of the present utility model includes a pea soaking unit, a pea crushing unit, a fiber separating unit, a fiber washing unit, a fiber dehydrating unit, a fiber drying unit, and a fiber packing unit.

As shown in fig. 1, in the pea infusion unit: the peas after being taken out of the bin firstly enter a stoning groove 101 to remove side by side stones and part of light impurities in the peas, and the stoning groove 101 is provided with a small bucket elevator for treating and conveying the light impurities in the peas. The circulating soak solution in the soak tank 103 is fed into the stoning tank 101 by the soak solution return pump 106, and then 1:4, the bean water mixture is conveyed into the soaking tank 103, two groups of six soaking tanks 103 are adopted, the beans are soaked separately, the soaking time of the soaking tanks 103 with different sizes is different, the material soaking time difference of each tank is less, and the product quality is more stable.

The bottom outlet of each soaking tank 103 is connected with the inlet of a soaking liquid circulating pump 104, the outlet of each soaking liquid circulating pump 104 is respectively connected with the tube side inlet of a soaking liquid heater 105, and the tube side outlet of each soaking liquid heater 105 is respectively connected with the soaking liquid inlets of the same-stage soaking tank and the next-stage soaking tank 103.

Both groups of soaking tanks 103 adopt a countercurrent soaking process, the soaking time is about 20 hours, and the soaking temperature is 30 ℃. The soaking liquid is returned to the tank for circulation through the soaking liquid circulating pump 104 or is conveyed to the next soaking tank 103, and the soaking temperature is ensured to be stable by heating through the soaking liquid heater 105 in the circulation process so as to achieve the best soaking effect. The whole peas are soaked in the soaking unit, lactic acid is injected into each soaking tank 103 for natural fermentation, and chemicals such as sodium hydroxide and the like are not needed to be added. The bottom outlets of the soaking tanks 103 are respectively connected with the inlets of the soaking discharge buffer tanks 107, and the outlets of the soaking discharge buffer tanks 107 are conveyed to the subsequent units through the soaking discharge pumps 108. The soaked peas enter a soaking discharging buffer tank 107 for temporary storage and are sent out by a soaking discharging pump 108.

The bottom outlet of each soaking tank 103 is connected with a soaking liquid reflux pipe, the outlet of the soaking liquid reflux pipe is connected with the inlet of a soaking liquid reflux pump 106, and the outlet pipeline of the soaking liquid reflux pump 106 is connected with the water inlet of the stone removing tank 101.

The tube side outlets of the soaking solution heaters 105 are also respectively connected with a soaking solution discharge tube for discharging the soaking solution, and the soaking solution can be added into feed.

The bottom outlets of the soaking tanks 103 are also respectively connected with a process water return pipe 109, and after peas in a certain soaking tank are discharged, the soaking tanks 103 can be flushed by process water, and the like.

As shown in fig. 2, in the pea crushing unit: the top flow outlet of the primary germ cyclone 201 is connected with the germ extraction unit, the bottom flow outlet of the primary germ cyclone 201 is connected with the inlet of the gravity dewatering curved screen 301, the water outlet of the gravity dewatering curved screen is connected with the process water return pipe 109, the dry matter outlet of the gravity dewatering curved screen 301 is connected with the inlet of the pea buffer bucket 302, the outlet of the pea buffer bucket 302 is connected with the inlet of the pin mill 303, the outlet of the pin mill 303 is connected with the inlet of the pin mill discharging tank 304, and the outlet of the pin mill discharging tank 304 is connected with the inlet of the fiber separation washing and dewatering unit through the pin mill discharging pump 305.

The underflow of the primary germ cyclone 201 enters a gravity dewatering curved screen 301 for dewatering, the dewatered moisture flows back to a pea soaking unit through a process water backflow pipe 109, the peas with the germs removed enter a pea buffer bucket 302 for temporary storage, then enter a pin mill 303 through a pipeline, starch and protein in the peas are crushed to about 50 microns through the pin mill, the crushed materials enter a pin mill discharging tank 304 for temporary storage, and the materials are sent to a fiber separation washing dewatering unit through a pin mill discharging pump 305. The needle mill 303 with larger yield is adopted in the working section to replace the grinding mill, so that the power consumption is reduced, and the defect that the grinding mill is easy to clamp is avoided.

In the fiber separating and washing unit: the outlet of the needle mill discharging pump 305 is connected with the inlet of a primary fiber washing sieve 401, the upper sieve outlet of the primary fiber washing sieve 401 is connected with the inlet of a primary fiber tank 402, the outlet of the primary fiber tank 402 is connected with the inlet of a secondary fiber washing sieve 404 through a primary fiber conveying pump 403, the upper sieve outlet of the secondary fiber washing sieve 404 is connected with the inlet of a secondary fiber tank 405, and the outlet of the secondary fiber tank 405 is connected with the inlet of a fiber dewatering horizontal decanter centrifuge 407 through a secondary fiber conveying pump 406.

The undersize outlet of the secondary fiber washing screen 404 is connected to the inlet of the primary fiber tank 402, and the undersize outlet of the primary fiber washing screen 401 is connected to the inlet of the amyloid buffer tank.

The mixed material in the pin mill discharge tank 304 is delivered by a pin mill discharge pump 305 to a primary fiber washing screen 401 for screening, undersize mainly starch and protein, and pumped to an amyloid separation unit.

The oversize material of the primary fiber washing sieve 401 is mainly fine fibers, the fine fibers enter a primary fiber tank 402, clean water is added, then the clean water is conveyed to a secondary fiber washing sieve 404 by a primary fiber conveying pump 403, the undersize material flows back to the primary fiber tank 402, and the oversize material enters a secondary fiber tank 405; the secondary fiber tank 405 continues to add fresh water and is then transported by the secondary fiber transfer pump 406 to the fiber dewatering unit for dewatering.

In the fiber dewatering unit, wet fibers sent out by the secondary fiber conveying pump 406 are sent into a fiber dewatering decanter centrifuge 407 for dewatering, and wastewater separated by the fiber dewatering decanter centrifuge 407 is added into feed or sent to a sewage station for treatment. After the fiber is dehydrated by the fiber dehydration decanter centrifuge 407, the water content is 72%, and the decanter centrifuge is adopted to replace a plate-and-frame filter press, so that the labor intensity is low and the degree of automation is higher. The dehydrated fiber enters a fiber drying and packaging unit.

In the fiber drying unit: the fiber outlet of the fiber dewatering horizontal decanter centrifuge 407 is connected with the inlet of a fiber collection buffer hopper 501, the outlet of the fiber collection buffer hopper 501 is connected with the inlet of a fiber lifter 502 through a feeder, the outlet of the fiber lifter 502 is connected with the inlet of a fiber collection brake dragon 506 through a fiber drying air net 503, the hot air inlet of the fiber drying air net 503 is connected with the outlet of an air heater 505, and the inlet of the air heater 505 is communicated with the atmosphere through an air filter 504;

the tail gas outlet of the fiber collection brake rotor 506 is communicated with the atmosphere through a fiber drying induced draft fan 507, the bottom outlet of the fiber collection brake rotor 506 is connected with the inlet of a fiber crusher 509 through a fiber discharging air shutter and a fiber iron remover 508, the outlet of the fiber crusher 509 is connected with a fiber conveying air supply net, the outlet of the fiber conveying air supply net is connected with the inlet of a fiber discharging brake rotor 510, the top outlet of the fiber discharging brake rotor 510 is connected with the inlet of a fiber discharging pulse dust remover 511, and the top outlet of the fiber discharging pulse dust remover 511 is communicated with the atmosphere through a fiber discharging induced draft fan 512; the bottom of the fiber discharging brake dragon 510 and the fiber discharging pulse dust remover 511 are respectively connected with the fiber discharging hopper 513 through fiber discharging air shutters.

The wet fibers separated by the fiber dewatering horizontal screw centrifugal machine 407 enter a fiber collecting buffer hopper 501, the wet fibers are fed to an inlet of a fiber lifter 502 through a feeder at the bottom of the fiber collecting buffer hopper, the fiber lifter 502 lifts the fibers into a fiber drying air net 503, cold air is heated by an air heater 505 after impurities in air are filtered by an air filter 504, the heated air is changed into high-temperature hot air and then is fed into the fiber drying air net 503, the fibers after quick drying enter a fiber collecting brake drum 506 for discharging, and tail gas of the fiber collecting brake drum 506 is discharged through a fiber drying induced draft fan 507. After the fiber comes out of the air seal at the bottom of the fiber collecting brake rotor 506, the fiber enters the fiber iron remover 508, iron impurities such as iron blocks, bolts and the like in the production process are prevented from entering the fiber pulverizer 509 to damage equipment, and then the fiber enters the fiber pulverizer 509 to be pulverized into uniform fine powder particles.

Under the suction of a fiber discharging induced draft fan 512, crushed fibers enter a fiber conveying and air supplying net again, enter a fiber discharging brake dragon 510 first, are discharged into a fiber discharging hopper through an air shut-off device, the air outlet of the fiber discharging brake dragon 510 enters a fiber discharging pulse dust remover 511, and are continuously discharged into the fiber discharging hopper 513, wherein the fiber moisture in the fiber discharging hopper 513 is 12%.

In the fiber packaging unit: the bottom of the fiber discharging hopper 513 is connected with the inlet of the fiber packing scale 514 through an electric valve, the top exhaust port of the fiber packing scale 514 and the top exhaust port of the fiber discharging hopper 513 are connected with the inlet of the fiber packing pulse dust collector 515, and the outlet of the fiber packing pulse dust collector 515 is communicated with the atmosphere through the fiber packing dust removing fan 516.

The fiber enters the fiber packing scale 514 from the bottom of the fiber discharge hopper 513 through a chute for packing, dust of the fiber discharge hopper 513 and the fiber packing scale 514 is collected by a dust removing air net and is sucked into the fiber packing pulse dust remover 515 through the fiber packing dust removing fan 516, and then the dust is collected and processed uniformly.

The foregoing description of the preferred embodiments of the present utility model illustrates and describes the basic principles, main features and advantages of the present utility model, and is not intended to limit the scope of the present utility model, as it should be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments. In addition to the embodiments described above, other embodiments of the utility model are possible without departing from the spirit and scope of the utility model. The utility model also has various changes and improvements, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the protection scope of the utility model. The scope of the utility model is defined by the appended claims and equivalents thereof. The technical features of the present utility model that are not described may be implemented by or using the prior art, and are not described herein.

Claims

1. The utility model provides a pea fibre production system, includes pea soak unit, the export of pea soak unit links to each other with soaking the entry of ejection of compact buffer tank, its characterized in that: the outlet of the soaking discharging buffer tank is connected with the inlet of the soaking discharging pump, and the outlet of the soaking discharging pump is connected with the inlet of the primary germ cyclone;

the underflow outlet of the primary germ cyclone is connected with the inlet of the gravity dewatering curved screen, the dry outlet of the gravity dewatering curved screen is connected with the inlet of the pea buffer hopper, the outlet of the pea buffer hopper is connected with the inlet of the pin mill, the outlet of the pin mill is connected with the inlet of the pin mill discharge tank, the outlet of the pin mill discharge tank is connected with the inlet of the primary fiber washing screen through the pin mill discharge pump, the screen outlet of the primary fiber washing screen is connected with the inlet of the primary fiber tank, the outlet of the primary fiber tank is connected with the inlet of the secondary fiber washing screen through the primary fiber conveying pump, the screen outlet of the secondary fiber washing screen is connected with the inlet of the secondary fiber tank, the outlet of the secondary fiber tank is connected with the inlet of the fiber dewatering horizontal spiral centrifuge through the secondary fiber conveying pump, and the fiber outlet of the fiber dewatering horizontal spiral centrifuge is connected with the fiber drying unit.

2. The pea fiber production system according to claim 1, wherein in the pea soaking unit, a discharge port of the stone removing tank is connected with an inlet of a bean water conveying pump, an outlet pipeline of the bean water conveying pump is connected with a feed port of each soaking tank, a lactic acid injection pipe is further connected to an upper end of each soaking tank, a bottom outlet of each soaking tank is connected with an inlet of a soaking liquid circulating pump and a soaking liquid return pipe, an outlet of the soaking liquid return pipe is connected with an inlet of the soaking liquid return pump, and an outlet pipeline of the soaking liquid return pump is connected with a water inlet of the stone removing tank.

3. The pea fiber production system according to claim 2, wherein the water outlet of the gravity dewatering curved screen is connected to a process water return pipe, the outlet of the process water return pipe being connected to the bottom outlet of each soaking tank, respectively.

4. The pea fiber production system of claim 1, wherein: the undersize outlet of the secondary fiber washing sieve is connected with the inlet of the primary fiber tank, and the undersize outlet of the primary fiber washing sieve is connected with the amyloid separation unit.

5. The pea fiber production system of claim 1, wherein: in the fiber drying unit, a fiber outlet of the fiber dewatering horizontal decanter centrifuge is connected with an inlet of a fiber collecting buffer hopper, an outlet of the fiber collecting buffer hopper is connected with an inlet of a fiber lifter through a feeder, an outlet of the fiber lifter is connected with an inlet of a fiber collecting brake dragon through a fiber drying air net, a hot air inlet of the fiber drying air net is connected with an outlet of an air heater, and an inlet of the air heater is communicated with the atmosphere through an air filter;

6. The pea fiber production system of claim 5, wherein: the bottom of the fiber discharge hopper is connected with an inlet of the fiber packaging scale through an electric valve, a top exhaust port of the fiber packaging scale and a top exhaust port of the fiber discharge hopper are connected with an inlet of the fiber packaging pulse dust remover, and an outlet of the fiber packaging pulse dust remover is communicated with the atmosphere through a fiber packaging dust removing fan.