CN108741147B

CN108741147B - Fresh red date production process

Info

Publication number: CN108741147B
Application number: CN201810589256.9A
Authority: CN
Inventors: 马丹; 张璐; 蒋卉
Original assignee: Hangzhou Golden Partner Intelligent Technology Co ltd
Current assignee: Suihua Hongying Information Technology Co ltd
Priority date: 2018-06-08
Filing date: 2018-06-08
Publication date: 2021-04-20
Anticipated expiration: 2038-06-08
Also published as: CN108741147A

Abstract

The invention discloses a production process of fresh red dates, which comprises the following steps: (S1-1) soaking and cleaning; (S1-2) brush cleaning; (S1-3) spraying and selecting fruits; (S1-4) vibrating for draining; (S1-5) flow-through drying; (S1-6) screening and grading; (S1-7) packaging and warehousing. The produced fresh red dates have long storage time, meet the national sanitary standard and can be directly eaten.

Description

Fresh red date production process

Technical Field

The invention relates to a fresh red date processing technology. In particular to a production process of fresh red dates.

Background

Xinjiang red dates are a special fruit in Xinjiang and belong to the genus of Ziziphus in the family of Prunaceae. Xinjiang belongs to typical continental climate, the illumination time is long, the day and night temperature difference is large, and less rain is generated after drying, so that the planted Xinjiang red dates have the advantages of full fruits, thin peel, dark red peel, sweet taste and the like compared with red dates in other areas, and have the effects of tonifying qi, nourishing blood and soothing the nerves.

The planting area of the Xinjiang red dates breaks through the 700-ten-thousand mu customs and accounts for more than one third of the planting area of the national red dates. Xinjiang red date planting has become the mainstay of local economy. However, the water content of the red dates is as high as more than 80%, the fresh red dates are short in storage time after being picked, are rotten after being dehydrated, are easy to ferment, are not easy to store and transport, seriously affect circulation and sale, have few and few deep processing items and bring huge economic loss to local jujube farmers.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to provide a set of fresh red date production process.

In order to solve the technical problems, the invention provides the following technical scheme: the production process of the fresh red dates comprises the following steps: (S1-1) soaking and cleaning: removing impurities from picked fresh red dates, and then conveying the fresh red dates into a bubble cleaning tank for cleaning, wherein the water temperature is 15-25 ℃, and the ratio of the fresh red dates to water is 1: (1.5-6) kg/L, the water is recycled for 2-20 times, the wastewater reaching the recycling times is discharged into a grid water collecting tank of the red date deep processing sewage treatment system through a water outlet pipe (1-14) of the bubble cleaning tank, the cleaning time is 10-20min, and the rotating speed of a rotating shaft (1-5) of the bubble cleaning tank is 5-20 r/min; in the cleaning process, a sterilizing lamp is turned on for sterilization; after cleaning, collecting fresh red dates for later use;

(S1-2) brush cleaning: feeding the soaked and cleaned fresh red dates into a brush drum cleaning machine, wherein the horizontal forward speed of the fresh red dates in the brush drum cleaning machine is 1-2 m/min; the main hairbrush (2-9) and the auxiliary hairbrush (2-18) of the hairbrush drum cleaning machine are all antibacterial nylon hairbrushes, the water spraying amount of each kilogram of fresh red dates is 0.5-2 kilograms, and the flowing cleaning water is conveyed into the water storage tank (1-24) of the bubble cleaning tank in the step (S1-1) and is used for soaking and cleaning the fresh red dates;

(S1-3) spraying and fruit selection: fresh red dates collected after being cleaned by a brush are sent into a spraying fruit selection machine, and the water spraying amount of a spray head (3-5) of the spraying fruit selection machine is as follows: spraying 0.1-0.5 kg of water per kg of fresh red dates, and conveying the flowing cleaning water to a water storage tank (1-24) of the bubble cleaning tank in the step (S1-1) for soaking and cleaning the fresh red dates;

(S1-4) vibrating and draining: conveying the collected fresh red dates after spraying and fruit selection into a vibration draining machine, removing water on the surfaces of the fresh red dates, wherein the conveying speeds of a first conveyor belt, a second conveyor belt and a third conveyor belt of the vibration draining machine are 0.5-3m/min, and the wind speeds of a second fan and a third fan of the vibration draining machine are 1-8 m/s; conveying water discharged from a water outlet (4-14) of the vibration draining machine to a water storage tank (1-24) of the foam cleaning tank in the step (S1-1) for soaking and cleaning the fresh red dates;

(S1-5) flow-through drying: conveying the fresh red dates after vibration and draining into a flow-through dryer for further drying, wherein the conveying speed of a conveying belt of the flow-through dryer is 1-2 m/min;

(S1-6) screening and grading: feeding the fresh red dates after the flow-through drying into a roller classifier for classifying and selecting fruits, wherein an inner cylinder (6-8) and an outer cylinder (6-5) of the roller classifier synchronously rotate at the rotating speed of 5-20 revolutions per minute; the diameters of the Chinese date separating openings (6-7) of the roller classifier are as follows from the first end to the second end of the inner cylinder (6-8) and the outer cylinder (6-5): the diameter of the first jujube dividing opening is less than or equal to 3.6cm, the diameter of the second jujube dividing opening is more than 3.6cm and less than or equal to 4.3cm, the diameter of the third jujube dividing opening is more than 4.3cm and less than or equal to 4.7cm, and the diameter of the fourth jujube dividing opening is more than 4.7 cm;

the fresh red dates coming out of the fourth jujube division opening are special grade fresh red dates, the fresh red dates coming out of the third jujube division opening are first grade fresh red dates, the fresh red dates coming out of the second jujube division opening are second grade fresh red dates, and the fresh red dates coming out of the first jujube division opening are second grade or lower fresh red dates;

(S1-7) packaging and warehousing: respectively packaging and warehousing the special grade fresh red dates and the first grade fresh red dates; and (3) transferring the second-level and below-second-level fresh red dates to a jujube slice production process and/or a jujube powder production process.

Drawings

FIG. 1-1 is a schematic top view of the internal structure of the bubble cleaning tank of the present invention;

FIG. 1-2 is a schematic side view of the bubble cleaning tank according to the present invention;

FIGS. 1-3 are enlarged schematic views of the part A of the bubble cleaning tank of the present invention shown in FIGS. 1-2;

FIGS. 1-4 are enlarged structural views of a rotating rod of the bubble cleaning tank of the present invention.

In the figure: 1-1 part of washing tank, 1-2 parts of bottom cabinet, 1-3 parts of fan, 1-4 parts of motor, 1-5 parts of rotating shaft, 1-6 parts of stirring rod, 1-7 parts of protective cover, 1-8 parts of brush, 1-9 parts of baffle slot, 1-10 parts of baffle, 1-11 parts of collecting box, 1-12 parts of clamping plate, 1-13 parts of inlet port, 1-14 parts of outlet pipe, 1-15 parts of sterilizing lamp, 1-16 parts of inlet port, 1-17 parts of speed reducing cloth bag, 1-18 parts of circular baffle, 1-19 parts of rotating rod, 1-20 parts of rotating groove, 1-21 parts of blast pipe, 1-22 parts of blower, 1-23 parts of water pump, 1-24 parts of water storage tank, 1-25 parts of valve.

FIG. 2-1 is a schematic top view of the brush drum cleaning machine of the present invention (for clearly showing the position relationship between the adjacent rotating shafts, the two adjacent rotating shafts are not shown in the figure, and the bristles of the main brush on one rotating shaft extend into the bristles of the auxiliary brush on the other rotating shaft);

FIG. 2-2 is a schematic side view of the brush drum cleaning machine according to the present invention;

fig. 2-3 are schematic views of the installation structure of the water pipe and the connecting pipe of the brush rotary drum cleaning machine.

In the figure: 2-1 parts of machine body, 2-2 parts of feed opening, 2-3 parts of clamping block, 2-4 parts of discharge opening, 2-5 parts of hexagon bolt, 2-6 parts of water pipe, 2-7 parts of water valve, 2-8 parts of rotating shaft, 2-9 parts of main brush, 2-10 parts of motor, 2-11 parts of belt, 2-12 parts of belt pulley, 2-13 parts of fixing frame, 2-14 parts of roller, 2-15 parts of adjusting nut, 2-16 parts of connecting pipe, 2-17 parts of spray head, 2-18 parts of auxiliary brush.

FIG. 3-1 is a schematic structural view of the spraying fruit picker of the present invention;

FIG. 3-2 is a schematic side view of the spraying fruit picker of the present invention;

fig. 3-3 are schematic structural views of the sieve plate of the spraying fruit selector.

In the figure: 3-1 parts of water tank, 3-2 parts of water tank, 3-3 parts of water delivery pipe, 3-4 parts of water outlet, 3-5 parts of spray head, 3-6 parts of spray box, 3-7 parts of slide plate, 3-8 parts of sieve plate, 3-9 parts of fruit box, 3-10 parts of vibration plate, 3-11 parts of vibration motor, 3-12 parts of fruit selecting machine table, 3-13 parts of roller, 3-14 parts of support frame, 3-15 parts of fruit inlet, 3-16 parts of sieve mesh, 3-17 parts of filter plate, 3-18 parts of filter plate and water spray pipe.

FIG. 4-1 is a schematic view of the internal structure of the vibration water draining machine of the present invention;

FIG. 4-2 is a partially enlarged structural view of the first water collecting tank of the vibration draining machine of the present invention;

fig. 4-3 are schematic top views of the first conveyor belt of the vibratory dewatering machine of the present invention.

In the figure: 4-1 parts of a machine body, 4-2 parts of a first vibration motor, 4-3 parts of a first fixing plate, 4-4 parts of a first conveying belt, 4-5 parts of a first baffle, 4-6 parts of a feeding port, 4-7 parts of a connecting rod, 4-8 parts of a brush, 4-9 parts of a second conveying belt, 4-10 parts of a second fan, 4-11 parts of a third conveying belt, 4-12 parts of a discharging port, 4-13 parts of a supporting column, 4-14 parts of a water outlet, 4-15 parts of a first water collecting tank, 4-16 parts of a first water pump, 4-17 parts of a first pipeline, 4-18 parts of a first rotating shaft, 4-19 parts of a first motor, 4-20 parts of a third fan.

FIG. 5-1 is a schematic structural view of a flow-through dryer of the present invention;

FIG. 5-2 is a schematic view of a first baffle configuration of the flow-through dryer of the present invention;

fig. 5-3 are schematic views of the internal structure of the conveyor belt of the through-flow dryer of the present invention.

In the figure: 5-1 parts of filter chamber, 5-2 parts of rubber layer, 5-3 parts of feed inlet, 5-4 parts of vibrator connector, 5-5 parts of bolt, 5-6 parts of buffer plate, 5-7 parts of filter plate, 5-8 parts of first water absorption layer, 5-9 parts of support plate, 5-10 parts of fan, 5-11 parts of ventilation opening, 5-12 parts of first baffle plate, 5-13 parts of second baffle plate, 5-14 parts of conveyor belt, 5-15 parts of partition plate, 5-16 parts of discharge plate, 5-17 parts of water collecting tank, 5-18 parts of collecting net, 5-19 parts of water absorption resin plate, 5-20 parts of second water absorption layer, 5-21 parts of filter hole, 5-22 parts of jujube outlet, 5-23 parts of jujube outlet pipe.

FIG. 6-1 is a front view schematic of the roller grader of the present invention;

FIG. 6-2 is a schematic view of the bearing structure of the roller classifier of the present invention;

6-3 are schematic views of the blade structure of the roller classifier of the present invention;

fig. 6-4 are schematic views of the structure of the jujube collector of the roller grader.

In the figure: 6-1 parts of base, 6-2 parts of support frame, 6-3 parts of bearing seat, 6-4 parts of bearing, 6-5 parts of outer cylinder, 6-6 parts of jujube outlet, 6-7 parts of jujube separating port, 6-8 parts of inner cylinder, 6-9 parts of blade, 6-10 parts of fixed seat, 6-11 parts of rotating shaft, 6-12 parts of rotating shaft, 6-13 parts of fresh jujube adding channel, 6-14 parts of speed reducer, 6-14 parts of motor, 6-15 parts of fixed frame, 6-16 parts of jujube collecting device, 6-17 parts of cambered surface, 6-18 parts of driven gear, 6-19 parts of driving gear, 6-20 parts of driven shaft.

FIG. 7 is a flow chart of the production process of fresh red dates.

In the figure: 101. a bubble cleaning tank, 102, a brush drum cleaning machine, 103, a spraying fruit selecting machine, 104, a vibration draining machine, 105, a flow-through drying machine, 106 and a roller grading machine.

Detailed Description

The production process of the fresh red dates comprises the following steps:

(S1-1) soaking and cleaning: removing impurities from picked fresh red dates, and then conveying the fresh red dates into a bubble cleaning tank for cleaning, wherein the water temperature is 20 ℃, and the ratio of the fresh red dates to water is 1: 3 kilograms per liter, the number of water recycling times is 5, the wastewater reaching the recycling times is discharged into a grid water collecting tank of the red date deep processing sewage treatment system through a water outlet pipe 1-14 of the bubble cleaning tank, the cleaning time is 20min, and the rotating speed of a rotating shaft 1-5 of the bubble cleaning tank is 15 revolutions per minute; in the cleaning process, a sterilizing lamp is turned on for sterilization; after cleaning, collecting fresh red dates for later use;

(S1-2) brush cleaning: feeding the soaked and cleaned fresh red dates into a brush drum cleaning machine, wherein the horizontal forward speed of the fresh red dates in the brush drum cleaning machine is 1.5 m/min; the main hair brush 2-9 and the auxiliary hair brush 2-18 of the hair brush drum cleaning machine are all antibacterial nylon hair brushes, the water spraying amount of each kilogram of fresh red dates is 1 kilogram, and the flowing cleaning water is conveyed into the water storage tank 1-24 of the bubble cleaning tank in the step (S1-1) and is used for soaking and cleaning the fresh red dates;

(S1-3) spraying and fruit selection: feeding the fresh red dates collected after the brush cleaning into a spraying fruit selection machine, wherein the water spraying amount of a spray head 3-5 of the spraying fruit selection machine is as follows: spraying 0.5 kg of water per kg of fresh red dates, and conveying the flowing cleaning water to the water storage tank 1-24 of the bubble cleaning tank in the step (S1-1) for soaking and cleaning the fresh red dates;

(S1-4) vibrating and draining: conveying the collected fresh red dates after spraying and fruit selection into a vibration draining machine, removing water on the surfaces of the fresh red dates, wherein the conveying speeds of a first conveyor belt, a second conveyor belt and a third conveyor belt of the vibration draining machine are 1m/min, and the wind speeds of a second fan and a third fan of the vibration draining machine are 5 m/s; conveying water discharged from water outlets 4-14 of the vibration draining machine to water storage tanks 1-24 of the foam washing tank in the step (S1-1) for soaking and washing fresh red dates;

(S1-5) flow-through drying: conveying the fresh red dates after vibration and draining into a flow-through dryer for further drying, wherein the conveying speed of a conveying belt of the flow-through dryer is 1 m/min;

(S1-6) screening and grading: feeding the fresh red dates after the flow-through drying into a roller classifier for classifying and selecting fruits, wherein an inner cylinder 6-8 and an outer cylinder 6-5 of the roller classifier synchronously rotate at a rotating speed of 20 revolutions per minute; the diameters of the jujube separating openings 6-7 of the roller classifier are as follows from the first end to the second end of the inner cylinder 6-8 and the outer cylinder 6-5: the diameter of the first jujube dividing opening is less than or equal to 3.6cm, the diameter of the second jujube dividing opening is more than 3.6cm and less than or equal to 4.3cm, the diameter of the third jujube dividing opening is more than 4.3cm and less than or equal to 4.7cm, and the diameter of the fourth jujube dividing opening is more than 4.7 cm;

The bubble cleaning tank is shown in figures 1-1 to 1-4, and comprises a cleaning tank 1-1, a stirring rod 1-6 and a water outlet pipe 1-14, and is characterized in that: a bottom cabinet 1-2 is fixed on the left side of the cleaning tank 1-1, a fan 1-3 is arranged above the bottom cabinet 1-2, a motor 1-4 is arranged on one side of the cleaning tank 1-1, the motor 1-4 is in driving connection with a rotating shaft 1-5, a stirring rod 1-6 is fixed on the outer side surface of the rotating shaft 1-5, a protective cover 1-7 is fixed on the outer side of the rotating shaft 1-5, the stirring rod 1-6 is positioned in the protective cover 1-7, a brush 1-8 is fixed on the outer side of the protective cover 1-7, a baffle slot 1-9 is arranged on the inner side wall of the right side of the cleaning tank 1-1, a baffle 1-10 is arranged inside the baffle slot 1-9, a collecting tank is arranged on the right lower side of the baffle 1-10, and a collecting, and the collecting box 1-11 is fixed with a clamping plate 1-12, the left side of the collecting box 1-11 is provided with an inlet 1-13, the lower edge of the inlet 1-13 is flush with the bottom surface of the cleaning tank 1-1, a water outlet pipe 1-14 is arranged at the bottom of the collecting tank, and the upper part of the middle part of the cleaning tank 1-1 is provided with a bactericidal lamp 1-15, the upper part of the bactericidal lamp 1-15 is provided with a feed inlet 1-16, a speed reducing cloth bag 1-17 is fixed below the feed inlet 1-16, a circular baffle plate 1-18 is arranged inside the water outlet pipe 1-14, the edge of the circular baffle plate 1-18 is in sealing fit with the inner wall of the water outlet pipe 1-14, the round baffle plate 1-18 is fixedly connected with one end of the rotating rod 1-19, and the other end of the rotating rod 1-19 passes through the rotating groove 1-20 on the side wall of the water outlet pipe 1-14 and extends out of the water outlet pipe 1-14; the bottom of the cleaning tank 1-1 is provided with a blast pipe 1-21, the air inlet end of the blast pipe 1-21 is communicated with the air outlet end of the air blower 1-22 through fluid, and the air outlet end of the blast pipe 1-21 is communicated with the fluid in the cleaning tank 1-1; the inner wall of the collecting box 1-11 is provided with a filtering hole with the aperture smaller than the diameter of the red dates; the collecting tank, the water pump 1-23, the water storage tank 1-24 and the cleaning tank 1-1 are communicated in sequence, and a valve 1-25 is arranged on a pipeline between the water storage tank 1-24 and the cleaning tank 1-1. The stirring rods 1-6 are in a fan-blade-shaped structure, and the stirring rods 1-6 are uniformly distributed around the axial center line of the rotating shaft 1-5. The protective cover 1-7 is in a net-shaped hollow structure, the radius of the protective cover 1-7 is larger than the length of the stirring rod 1-6, and the protective cover 1-7 and the brush 1-8 are fixedly connected to form an integrated structure. The height of the baffle 1-10 is larger than that of the right side wall of the cleaning tank 1-1, and the baffle 1-10 is detachably connected with the cleaning tank 1-1 through the baffle slot 1-9. The collecting box 1-11 is of an L-shaped hollow structure, the collecting box 1-11 and the clamping plate 1-12 are welded to form an integrated structure, the clamping plate 1-12 is of a groove-shaped structure, and the groove width of the groove-shaped structure of the clamping plate 1-12 is larger than the thickness of the side wall of the collecting tank.

The working principle is as follows: firstly, injecting a proper amount of water into the cleaning groove 1-1, inserting the baffle plate 1-10 on the right side of the cleaning groove 1-1 into the baffle plate slot 1-9 to prevent water from flowing away, then pouring the red dates to be cleaned into the cleaning groove 1-1 through the feed inlet 1-16, enabling the speed of the red dates falling on the water surface to be reduced through the speed reducing cloth bag 1-17 below the cleaning groove 1-1, preventing the red dates from being damaged, then opening the motor 1-4 and the blower 1-22, enabling the motor 1-4 to drive the rotating shaft 1-5 to rotate clockwise, and further driving the stirring rod 1-6 and the protective cover 1-7 on the outer side (the diameter of meshes on the protective cover 1-7 is smaller than that of the fresh red dates, so that the fresh red dates can be prevented from entering the protective cover, the rotating stirring rod 1-6 can stir water flow in the cleaning tank 1-1, air blown out by the air blower 1-22 is blown into the cleaning tank 1-1 from the bottom of the cleaning tank 1-1 through the air blowing pipe 1-21 to generate a large amount of air bubbles, so that red dates are in a rolling state under the drive of the blown air bubbles and the stirring rod 1-6, sludge and pesticides on the surfaces of the red dates in the cleaning tank 1-1 can be cleaned, the protection cover 1-7 can prevent the fresh red dates from being damaged due to collision between the fresh red dates and the rotating shaft 1-5 and the stirring rod 1-6 in the rotating process, the quality of the cleaned red dates is improved, meanwhile, the uniformly distributed brushes 1-8 can prevent the red dates from being damaged due to direct collision between the red dates and the protection cover 1-7, and the air bubbles blown out by the air blowing pipe 1-21 can increase the rolling degree of the red dates in the cleaning tank 1-1, can remove attachments on the surface of red dates, thoroughly clean the red dates, start the fan 1-3 to continuously blow the water surface, turn and clean the red dates floating on the surface of the cleaning tank 1-1, ensure the cleaning force of the red dates, sterilize bacteria on the surface of the red dates by the sterilizing lamps 1-15 in the cleaning process of the red dates, ensure the quality of the red dates, pull out the baffle plate 1-10 upwards through the baffle plate slots 1-9 after the red dates are cleaned, make the red dates and water enter the collecting box 1-11 in the collecting tank through the inlet port 1-13 under the driving of the vortex generated by the stirring rod 1-6 and the blowing of the fan 1-3, and then take out the collecting box 1-11 upwards through the clamping plates 1-12 at two sides, thereby collecting the cleaned red dates, after red dates in the collecting box 1-11 are taken out, the collecting box 1-11 is placed in a collecting tank on the right side of the cleaning tank 1-1 through a clamping plate 1-12 so as to be collected next time, after collection is finished, a fan 1-3 and a motor 1-4 are turned off, a rotating rod 1-19 is rotated by a rotating groove 1-20 to form a certain angle, so that a circular baffle 1-18 is driven to rotate, water in the collecting tank flows out through a water outlet pipe 1-14, and therefore the inside of the collecting tank can be cleaned conveniently and used next time; in addition, the collecting tank, the water pumps 1-23, the water storage tanks 1-24 and the cleaning tank 1-1 are sequentially communicated in a fluid mode, the valves 1-25 are installed on a pipeline between the water storage tanks 1-24 and the cleaning tank 1-1, water in the collecting tank can be conveyed into the cleaning tank 1-1 through the water pumps 1-23 to be recycled, the water in the collecting tank 1-24 is temporarily stored, when the collecting box 1-11 starts to collect cleaned red dates, the water pumps 1-23 can start to work to pump the water into the water storage tanks 1-24 to temporarily store the water, the valves 1-25 are closed, and the valves 1-25 can be opened to clean the next batch of fresh red dates after the collecting work is finished, so that the cleaning work can be continuously carried out, and meanwhile, water is saved; when the water is recycled for a set number of times, the rotating rods 1-19 are rotated to discharge the sewage through the water outlet pipes 1-14. The red date cleaning device has the advantages that damage caused by collision in the red date cleaning process can be reduced, the quality of the cleaned red dates is improved, sludge and pesticides on the surfaces of the red dates can be sufficiently cleaned, and meanwhile, the cleaned red dates are convenient to collect.

The brush rotary drum cleaning machine is shown in figures 2-1 to 2-3 and comprises a machine body 2-1, a feed opening 2-2, a clamping block 2-3, a discharge opening 2-4, a hexagon bolt 2-5, a water pipe 2-6, a water valve 2-7, a rotating shaft 2-8, a main brush 2-9, a motor 2-10, a belt 2-11, a belt pulley 2-12, a fixed frame 2-13, a roller 2-14, an adjusting nut 2-15, a connecting pipe 2-16, a spray head 2-17 and an auxiliary brush 2-18, wherein the upper end of the left side of the machine body 2-1 is connected with the feed opening 2-2, the clamping block 2-3 is arranged at the tail end of the right side of the machine body 2-1, the feed opening 2-2 is in a funnel-shaped structure, and the feed opening 2-2 and the machine body 2-1, the feeding port 2-2 and the machine body 2-1 are well stable, the phenomenon that the feeding port 2-2 is inclined due to fracture between the feeding port 2-2 and the machine body 2-1 when in use is prevented, fresh red dates cannot effectively fall into the machine body 2-1 from the feeding port 2-2, meanwhile, the feeding port 2-2 can effectively prevent the fresh red dates from being stacked when in feeding, the discharging ports 2-4 are distributed on the inner sides of the clamping blocks 2-3, hexagonal bolts 2-5 penetrate through the two sides of the discharging ports 2-4, the discharging ports 2-4 are detachably connected with the machine body 2-1 through the hexagonal bolts 2-5 and the clamping blocks 2-3, the clamping blocks 2-3 play a good role in fixing and clamping, and the clamping blocks 2-3 are prevented from being unstably fixed when in use, the discharge port 2-4 is separated from the right side of the machine body 2-1, so that the fresh red dates cannot effectively fall into the storage device, and meanwhile, when the discharge port 2-4 is damaged, the discharge port 2-4 can be detached by detaching the hexagon bolt 2-5 in use, so that a user can conveniently replace the new discharge port 2-4. The upper end of the machine body 2-1 is provided with a water pipe 2-6, the outer side of the water pipe 2-6 is fixed with a water valve 2-7, the inner side of the machine body 2-1 is provided with a rotating shaft 2-8, the periphery of the outer side of the rotating shaft 2-8 is connected with a main hair brush 2-9 and an auxiliary hair brush 2-18, the main hair brush 2-9 and the auxiliary hair brush 2-18 are distributed at the outer side of the rotating shaft 2-8 at intervals, and the axial width of the main hair brush 2-9 along the rotating shaft 2-8 is equal to the axial width of the auxiliary hair brush 2-18 along the rotating shaft 2-8; between two adjacent spindles 2-8: the main hairbrush 2-9 on one rotating shaft 2-8 is over against the auxiliary hairbrush 2-18 on the other rotating shaft 2-8, and the bristles of the main hairbrush 2-9 on one rotating shaft 2-8 extend into the bristles of the auxiliary hairbrush (2-18) on the other rotating shaft 2-8, in the red date cleaning process, the main hairbrush 2-9 and the auxiliary hairbrush 2-18 on one rotating shaft 2-8 are mutually matched with the main hairbrush 2-9 and the auxiliary hairbrush 2-18 on the other adjacent rotating shaft 2-8 to clamp the fresh red dates, the main hairbrush 2-9 and the auxiliary hairbrush 2-18 clean the surfaces of the fresh red dates to prevent the red dates from being effectively cleaned due to insufficient cleaning force in use, the motor 2-10 is distributed at the lower end of the left side of the machine body 2-1, and the belt 2-11 is arranged on the power output of the motor 2-10, the belt pulleys 2-12 are fixedly arranged on the rotating shaft 2-8 at the leftmost side of the machine body 2-1, the power output end of the motor 2-10 is in driving connection with the belt pulleys 2-12 through the belts 2-11, the adjacent rotating shafts 2-8 are in driving connection through chains, the motor 2-10 is in driving connection with the belt pulleys 2-12 through the belts 2-11, when in cleaning, the motor 2-10 is started, the motor 2-10 drives the belt pulley 2-12 to rotate, the belt 2-11 drives the rotating shafts 2-8 to rotate, a chain wheel is arranged at one end of each rotating shaft 2-8, the adjacent rotating shafts 2-8 are in transmission connection through a chain and the chain wheel which are matched with each other, the main hairbrushes 2-9 and the auxiliary hairbrushes 2-18 rotate along with the main hairbrushes, and the fresh red dates are cleaned in a rotating mode. The lower end of the machine body 2-1 is provided with a fixed frame 2-13, and the two sides of the lower end of the fixed frame 2-13 are connected with rollers 2-14. In the embodiment, adjusting nuts 2-15 are distributed on the inner sides of water pipes 2-6, connecting pipes 2-16 are fixed on the inner sides of the adjusting nuts 2-15, spray heads 2-17 are mounted at the lower ends of the connecting pipes 2-16, the spray heads 2-17 are communicated with fluids of the connecting pipes 2-16, the connecting pipes 2-16 are communicated with the fluids of the water pipes 2-6, branch pipes are formed on the outer walls of the inner sides of the water pipes 2-6 at equal intervals, the adjusting nuts 2-15 are mounted on the branch pipes, external threads matched with the internal threads of the adjusting nuts 2-15 are arranged on the outer surfaces of the ends of the connecting pipes 2-16, the free ends of the branch pipes extend into the connecting pipes 2-16, the branch pipes and the connecting pipes 2-16 are detachably connected through the adjusting nuts 2-15, when the spray heads 2-, the adjusting nuts 2-15 can be unscrewed, and then the connecting pipes 2-16 can be rotated, so that the spraying angle of the spray heads 2-17 can be adjusted.

The working principle is as follows: firstly, a motor 2-10 is started, the motor 2-10 drives a belt pulley 2-12 to rotate, the belt pulley 2-12 drives a rotating shaft 2-8 to rotate through a belt 2-11, a plurality of main hairbrushes 2-9 and auxiliary hairbrushes 2-18 rotate along with the rotating shaft, a water valve 2-7 is started at the same time, clean water flows into a connecting pipe 2-16 from a water pipe 2-6 and is sprayed out from a spray head 2-17, the connecting pipe 2-16 is uniformly distributed on the inner side of the water pipe 2-6 at equal intervals, when the spray head 2-17 cannot effectively spray fresh red dates, the connecting pipe 2-16 can be rotated through an adjusting nut 2-15, the connecting pipe 2-16 can rotate leftwards and rightwards by a small amplitude, and the water spraying angle of the spray head 2-17 is; then, fresh red dates are placed into a feed opening 2-2, a main brush 2-9 and an auxiliary brush 2-18 on one rotating shaft 2-8 are staggered with a main brush 2-9 and an auxiliary brush 2-18 on the other adjacent rotating shaft 2-8 to clamp the fresh red dates, the main brush 2-9 and the auxiliary brush 2-18 clean the surfaces of the fresh red dates, clear water sprayed by a spray head 2-17 deeply cleans the surfaces of the red dates, the main brush 2-9 and the auxiliary brush 2-18 with moderate hardness are selected to prevent the main brush 2-9 and the auxiliary brush 2-18 from damaging the surfaces of the red dates, dirt brushed off by the main brush 2-9 and the auxiliary brush 2-18 can be taken away, and finally the cleaned fresh red dates flow out from a discharge opening 2-4.

In addition, a water collecting tank is arranged below the main brushes 2-9 and the auxiliary brushes 2-18, and sewage generated by cleaning can flow into the water collecting tank to be stored so as to be treated or recycled. In order to enable the fresh red dates to smoothly or quickly go from the fresh red date inlet end to the fresh red date outlet end, the radius of the chain wheel on the rotating shaft is gradually reduced from the fresh red date inlet end to the fresh red date outlet end, so that the rotating speed of the chain wheel is sequentially accelerated, and the fresh red dates can advance. Of course, the skilled person can also take other forms, such as the inlet end of the fresh red dates having a greater height than the outlet end of the fresh red dates, so that the fresh red dates roll forward by their own weight. Or the combination of the two forms can be adopted to promote the fresh red dates to smoothly or quickly flow from the inlet end of the fresh red dates to the outlet end of the fresh red dates.

The brush drum cleaning machine for cleaning the fresh red dates is provided with the feed opening, the feed opening is welded with the machine body, the feed opening and the machine body are stable, the phenomenon that the feed opening is inclined due to the fact that the feed opening is broken between the feed opening and the machine body in use is prevented, the fresh red dates cannot effectively fall into the machine body from the feed opening, meanwhile, the feeding port can effectively prevent the fresh red dates from being stacked during feeding, hexagonal bolts penetrate through two sides of the discharging port, the discharging port is connected with the machine body through the hexagonal bolts and the clamping blocks, the clamping blocks play a good role in fixing and clamping, the clamping blocks are prevented from being unstably fixed in use, the discharging port is prevented from being separated from the right side of the machine body, and the fresh red dates cannot effectively fall into the storage device, when the discharge gate appeared damaging simultaneously, can dismantle the discharge gate through dismantling the hex bolts in the use, the person of facilitating the use changes new discharge gate. The outer sides of the rotating shafts are all connected with a main hair brush and an auxiliary hair brush, the main hair brush and the auxiliary hair brush are distributed on the outer sides of the rotating shafts at intervals, the axial widths of the main hair brush and the auxiliary hair brush are equal, two adjacent rotating shafts are arranged, the main hair brush on one rotating shaft is just opposite to the auxiliary hair brush on the other rotating shaft, the main hair brush and the auxiliary hair brush on one rotating shaft extend into the hair brush of the auxiliary hair brush on the other rotating shaft, the main hair brush and the auxiliary hair brush can thoroughly clean the surface of the fresh red dates, the situation that the red dates cannot be effectively cleaned due to insufficient cleaning force in use is prevented, a spray head is installed at the lower end of the connecting pipe, dirt on the fresh red dates brushed off by the main hair brush and the auxiliary hair brush can be washed off by water sprayed by the spray head, a rotatable structure is arranged between the connecting pipe and the, the connecting pipe can rotate leftwards and rightwards by a small amplitude, and is convenient for a user to use.

The spraying fruit selecting machine is shown in figures 3-1 to 3-3 and comprises a spraying box 3-6 and a fruit selecting machine table 3-12, wherein the fruit selecting machine table 3-12 is positioned at the right side of the spraying box 3-6, a water pool 3-1 is arranged at the left side of the spraying box 3-6, a water tank 3-2 is arranged at the upper left part in the spraying box 3-6, the water outlet end of the water tank 3-2 is communicated with the water inlet end of a water pipe 3-3, the water outlet end of the water pipe 3-3 is communicated with the water inlet end of a spray head 3-5, the water tank 3-2 starts to operate, water in the water tank 3-2 enters the spray head 3-5 through the water pipe 3-3, the red dates can be sprayed and cleaned, a water outlet 3-4 is arranged at the bottom of the side, close to the water pool 3-1, of the, a filter plate 3-17 is arranged below the spray head 3-5, and the filter plate 3-17 is arranged in the spray box 3-6: the water outlet 3-4 is communicated with fluid in the space below the filter plate 3-17 by inclining 20 degrees from one side adjacent to the water pool 3-1 to the direction of the discharge port, namely the horizontal height of one side of the filter plate 3-17 adjacent to the water pool 3-1 is larger than that of the discharge port; the bottom of the spraying box 3-6 close to one side of the fruit selecting machine table 3-12 is provided with a discharge port, the fruit selecting machine table 3-12 is provided with a vibrating plate 3-10, the vibrating plate 3-10 is provided with a sieve plate 3-8, the discharge port is provided with a sliding plate 3-7, the discharge end of the sliding plate 3-7 is positioned above the sieve plate 3-8, the lower part of the sieve plate 3-8 is provided with a fruit box 3-9, the right side of the fruit selecting machine table 3-12 is provided with a vibrating motor 3-11, the left side of the vibrating motor 3-11 is connected with the vibrating plate 3-10, the vibrating plate 3-10 inclines 5-15 degrees from left to right on the fruit selecting machine table 3-12, namely the horizontal height of the vibrating plate 3-10 close to one end of the spraying box 3-6 is larger than, after the vibrating motor 3-11 is started, the vibrating plate 3-10 starts to vibrate, red dates are conveyed forwards to the sieve plate 3-8 through vibration, the support frame 3-14 is fixed at the bottom of the fruit selecting machine table 3-12, the rollers 3-13 are installed at the bottom of the support frame 3-14, the rollers 3-13 at the bottom of the fruit selecting machine table 3-12 are designed, the whole device is favorable for moving, the transportation time of the red dates is shortened, a fruit inlet 3-15 is formed in the top of the spraying box 3-6, sieve holes 3-16 are formed in the surface of the sieve plate 3-8, a plurality of sieve holes 3-16 are formed in the surface of the sieve plate 3-8, the sieve plate 3-8 is in a half arc shape, the pore diameter of the sieve holes 3-16 on the first sieve plate 3-8 is smaller than or equal to 1 cm from left to right on the vibrating plate 3, the aperture of the sieve pore 3-16 on the second sieve plate 3-8 is larger than 1 cm and smaller than or equal to 2 cm, the aperture of the sieve pore 3-16 on the third sieve plate 3-8 is larger than 2 cm and smaller than or equal to 3cm, the aperture of the sieve pore 3-16 on the fourth sieve plate 3-8 is larger than 3cm and smaller than or equal to 3.5 cm, the aperture of the sieve pore 3-16 on the fifth sieve plate 3-8 is larger than 6cm, the dried and shriveled red dates can be screened according to different sieve pores 3-16 (under general conditions, the longitudinal diameter and the transverse diameter of the deteriorated red dates can be reduced, so that the deteriorated red dates can be screened out, certainly, the longitudinal diameter and the transverse diameter of some red dates which are not deteriorated are small and can be screened out together with the deteriorated red dates, the workload of manual sorting in later period can be greatly reduced, according to the price condition of the red dates, or the undegraded red dates with smaller longitudinal diameter and transverse diameter can be treated together with the degraded red dates).

The working principle is as follows: firstly, pouring fresh red dates into a spraying box 3-6 through a fruit inlet 3-15 above the spraying box 3-6, opening a water outlet end of a water tank 3-2, enabling water in the water tank 3-2 to enter a spray head 3-5 through a water delivery pipe 3-3, enabling the spray head 3-5 to spray and wash the red dates inside, separating water flow from the red dates on a filter plate 3-17 after the red dates are sprayed and washed, enabling the water flow to flow into a water tank 3-1 through a left water outlet 3-4, enabling the red dates to pass through the filter plate 3-17 inclined to a discharge outlet direction by 10-30 degrees from one side adjacent to the water tank 3-1, arranging a discharge outlet at the bottom of one side of the spraying box 3-6 adjacent to a fruit selecting machine table 3-12, sliding into a sliding plate 3-7, and then enabling the red dates to enter the fruit selecting machine table 3-, then starting a vibrating motor 3-11, connecting the left side of the vibrating motor 3-11 with a vibrating plate 3-10, after the vibrating motor 3-11 is started, enabling the vibrating plate 3-10 to start vibrating, enabling the vibrating plate 3-10 to incline 5-15 degrees from left to right on a fruit selecting machine table 3-12, conveying the red dates to a sieve plate 3-8 forwards through the vibrating and inclined vibrating plate 3-10, installing five or more sieve plates from the left side to the right side of the vibrating plate 3-10, arranging sieve holes 3-16 on the sieve plate 3-8, enabling the size and specification of the sieve holes 3-16 to be all different, gradually increasing the aperture of the sieve holes 3-16 on each sieve plate 3-8 from left to right of the first to the fifth sieve plates, and enabling the deteriorated red dates to be shriveled and not full due to water loss, the screening plates 3-8 passing through the smaller screening holes 3-16 are firstly screened out, then the red dates of different specifications and sizes are screened according to the different screening holes 3-16 when the red dates vibrate forwards through the inclined vibrating plates 3-10, after the red dates are sequentially screened, the unqualified red dates are screened out, meanwhile, the red dates of the same size are screened together, later-stage manual screening is facilitated, the working strength is reduced, the red dates can enter the lower fruit box 3-9 after being screened, the whole device is moved beneficially due to the design of the rollers 3-13 designed at the bottom of the fruit selecting machine table 3-12, the transportation time of the red dates is shortened, the red dates in the fruit box 3-9 are taken away, and the efficiency of the whole using process is well improved. The water spraying pipes 3 to 18 are arranged right above the sieve plates 3 to 8, water spraying openings of the water spraying pipes 3 to 18 are right opposite to the sieve plates 3 to 8, and fresh red dates on the sieve plates 3 to 8 can be cleaned again. In order to avoid the collision damage of the fresh red dates on the sieve plate 3-8, the vibration amplitude and frequency of the vibration motor 3-11 are not easy to be too large; in addition, the sieve plates 3-8 are preferably rubber plates or plastic plates, which can reduce the damage to the fresh red dates caused by collision.

The spraying fruit sorting machine for screening deteriorated red dates is provided with a spraying box, a spray head is arranged in the spraying box and can wash the red dates, a water outlet is arranged on the left side of the spraying box, after the red dates are washed, cleaning wastewater flows into the water inlet tank, the washed red dates enter a fruit selecting machine table, a vibration motor is connected with a vibration plate, the red dates are moved forwards to be selected through vibration, the sieve plate is arranged on the vibration plate and can be used for screening the shrunken red dates, the fruit box is fixed below the sieve plate, the red dates can sequentially enter the fruit box through the sieve holes in the sieve plate according to the diameter in the screening process, the manual labor is reduced, the sieve plate is arranged inside the fruit selecting machine table, a plurality of red dates can be screened, in addition, the aperture of the sieve pore is gradually enlarged from left to right, so that the shrunken red dates can be preferentially screened, and the quality and the working efficiency of the red dates are greatly improved.

The vibration draining machine is shown in figures 4-1 to 4-3 and comprises a machine body 4-1, a first conveyor belt 4-4 and a brush 4-8, wherein two first fixing plates 4-3 are horizontally arranged above the interior of the machine body 4-1, a first vibrating motor 4-2 is arranged on the inner wall of the machine body 4-1 at one side of the first fixing plate 4-3, a first rotating shaft 4-18 is arranged between the two first fixing plates 4-3, a first belt pulley is arranged on the first rotating shaft 4-18, a first conveying belt 4-4 is positioned between the two first fixing plates 4-3 and is arranged on the first belt pulley, the upper surfaces of the two first fixing plates 4-3 are respectively provided with a first baffle plate 4-5, and the first vibration motor 4-2 is in contact connection with the first fixing plates 4-3 through a connecting pipe; a feeding port 4-6 is arranged at the top of the left upper part of the machine body 4-1, a connecting rod 4-7 is fixed on the inner wall of the top part of the machine body 4-1, and a brush 4-8 is arranged below the connecting rod 4-7;

the side wall of the left lower part of the machine body 4-1 is provided with a water outlet 4-14, a first water collecting tank 4-15 fixedly connected with the first fixing plate 4-3 is arranged below the first conveying belt 4-4, a first water pump 4-16 and a first pipeline 4-17 are arranged below the first water collecting tank 4-15, the water inlet end of the first water pump 4-16 is communicated with fluid in the first water collecting tank 4-15, the water outlet end of the first water pump 4-16 is communicated with the water inlet end of the first pipeline 4-17, the water outlet end of the first pipeline 4-17 is communicated with the fluid in the water outlet 4-14, the first rotating shaft 4-18 is in driving connection with the first motor 4-19, and the first conveying belt 4-4 is a hollowed mesh conveying belt.

Two second fixing plates are horizontally arranged below the inner part of the machine body 4-1, a second vibration motor is arranged on the inner wall of the machine body 4-1 on one side of the second fixing plates, a second rotating shaft is arranged between the two second fixing plates, a second belt pulley is arranged on the second rotating shaft, a second conveying belt 4-9 is positioned between the two second fixing plates and is arranged on the second belt pulley, second baffles are arranged on the upper surfaces of the two second fixing plates, and the second vibration motor is in contact connection with the second fixing plates through connecting pipes;

a second water collecting tank fixedly connected with the second fixing plate is arranged below the second conveying belt 4-9, a second water pump and a second pipeline are installed below the second water collecting tank, the water inlet end of the second water pump is communicated with fluid in the second water collecting tank, the water outlet end of the second water pump is communicated with the water inlet end of the second pipeline, the water outlet end of the second pipeline is communicated with fluid in the water outlet 4-14, a second rotating shaft is in driving connection with a second motor, and the second conveying belt 4-9 is a hollow mesh conveying belt.

Two third fixing plates are horizontally arranged in the machine body 4-1 and are positioned under the first water collecting tank 4-15 and above the second conveying belt 4-9, a third vibrating motor is arranged on the inner wall of the machine body 4-1 at one side of the third fixing plates, a third rotating shaft is arranged between the two third fixing plates, a third belt pulley is arranged on the third rotating shaft, the third conveying belt 4-11 is positioned between the two third fixing plates and is arranged on the third belt pulley, third baffle plates are arranged on the upper surfaces of the two third fixing plates, and the third vibrating motor is in contact connection with the third fixing plates through connecting pipes;

a third water collecting tank fixedly connected with a third fixing plate is arranged below the third conveyor belt 4-11, a third water pump and a third pipeline are arranged below the third water collecting tank, the water inlet end of the third water pump is communicated with fluid in the third water collecting tank, the water outlet end of the third water pump is communicated with the water inlet end of the third pipeline, the water outlet end of the third pipeline is communicated with the fluid at 4-14, a third rotating shaft is in driving connection with a third motor, and the third conveyor belt is a hollow mesh conveyor belt; a discharge port 4-12 is arranged at the right lower part of the third conveyor belt 4-11, and a support column 4-13 is fixed below the machine body 4-1.

The first rotating shaft 4-18 rotates along the clockwise direction, the third rotating shaft rotates along the anticlockwise direction, the second rotating shaft rotates along the clockwise direction, a third fan 4-20 is installed on the inner wall of the machine body 4-1 above the right of the third conveying belt 4-11, and a second fan 4-10 is installed on the inner wall of the machine body 4-1 above the left of the second conveying belt 4-9.

The method is characterized in that: the first conveyor belt 4-4, the second conveyor belt 4-9 and the third conveyor belt 4-11 are in a parallel structure, and the lengths of the first conveyor belt 4-4, the second conveyor belt 4-9 and the third conveyor belt 4-11 are smaller than the length of the machine body 4-1.

The plate surface of the first baffle plate 4-5 is vertical to the bearing surface of the first conveyor belt 4-4, and the thickness of the first baffle plate 4-5 is the same as that of the first fixing plate 4-3; the plate surface of the second baffle is vertical to the bearing surface of the second conveyor belt 4-9, and the thickness of the second baffle is the same as that of the second fixed plate; the plate surface of the third baffle is vertical to the bearing surface of the third conveyor belt 4-11, and the thickness of the third baffle is the same as that of the third fixed plate.

The air outlet of the second fan 4-10 is parallel to the bearing surface of the second conveyor belt 4-9, and the air outlet of the third fan 4-20 is parallel to the bearing surface of the third conveyor belt 4-11.

The aperture of the mesh on the mesh-shaped conveyor belt is 0.5-1.5cm, so that the fresh red dates are prevented from falling off.

The working principle is as follows: firstly, cleaned fresh red dates are poured into a machine body 4-1 from a material inlet 4-6 and fall onto a first conveyor belt 4-4, the first conveyor belt 4-4 is a mesh conveyor belt which is made of soft fabrics and can reduce damage of the fresh red dates in a vibration draining process, then a first motor 4-19 is started, a first belt pulley drives the first conveyor belt 4-4 to operate through clockwise rotation of a first rotating shaft 4-18, so that the fresh red dates are conveyed on the first conveyor belt 4-4, a first vibrating motor 4-2 is started in the conveying process, the first vibrating motor 4-2 drives the first conveyor belt 4-4 to vibrate, so that the fresh red dates are subjected to vibration draining, and when the fresh red dates approach a brush 4-8, the brush 4-8 can clean the fresh red dates, meanwhile, the excessive moisture on the surfaces of the fresh red dates is swept, in the process, the first baffle 4-5 can prevent the fresh red dates from falling from two sides in the conveying process, the drained moisture after vibration can fall into the first water collecting tank 4-15, the first water pump 4-16 is started, the first water pump 4-16 can discharge the first water collecting tank 4-15 from the water outlet 4-14 through the first pipeline 4-17, then the fresh red dates fall onto the third conveying belt 4-11 from the right end of the first conveying belt 4-4, the third fan 4-20 is started, the third fan 4-20 can blow out cold air to accelerate the evaporation of the moisture on the surfaces of the fresh red dates, so that the fresh red dates can be quickly drained, the fresh red dates move anticlockwise on the third conveying belt 4-11, the drained moisture after the vibration of the third vibrating machine can fall into the third water collecting tank, discharging water in the third water collecting tank from a water outlet 4-14 through a third pipeline through a third water pump, continuously transmitting the red dates, enabling the red dates to fall onto a second conveyor belt 4-9 from the left end of a third conveyor belt 4-11 and to be transmitted clockwise on the second conveyor belt 4-9, continuously draining through the combined action of a second fan 4-10 and a second vibration motor, pumping the water in the second water collecting tank through the second water pump, discharging through a water outlet 4-14 of the second pipeline, and finally discharging the fresh red dates which are subjected to vibration draining through a discharge outlet 4-12 arranged at the right lower part of the second conveyor belt 4-9.

The vibration draining machine for fresh red dates is provided with a first conveyor belt, a second conveyor belt and a third conveyor belt, draining can be efficiently completed, a feeding port is used for entering fresh red dates, an inclined inlet can prevent the fresh red dates from being accumulated to cause extrusion damage, a brush can clean the fresh red dates and simultaneously sweep away redundant moisture on the surfaces of the fresh red dates, a first baffle plate, a second baffle plate and a third baffle plate can prevent the fresh red dates from falling off from two sides in the conveying process, a first vibration motor, a second vibration motor and a third vibration motor can indirectly enable the first conveyor belt, the second conveyor belt and the third conveyor belt to vibrate so as to drain the fresh red dates in a vibration mode, a second fan and a third fan can dry the moisture on the surfaces of the fresh red dates in an air drying mode, the fresh red dates are quickly drained, the draining effect is good, a first water collecting tank, a second water collecting tank and a third water collecting tank are used for collecting the water drained after the fresh red dates are cleaned, the water pump can make first water catch bowl, second water catch bowl and third water catch bowl pass through the pipeline and are discharged by delivery port department, first motor, second motor and third motor can drive first pivot respectively, the rotation of second pivot and third pivot makes first conveyer belt, second conveyer belt and third conveyer belt operation, mesh conveyor belt can reduce the damage that the bright red date led to the fact at the vibration waterlogging caused by excessive rainfall in-process for soft fabric, mesh conveyor belt's surface is sieve network structure and can makes moisture pass through, mesh size of mesh conveyor belt is 0.5-1.5cm and can avoid bright red date to fall into the first water catch bowl in below through mesh conveyor belt, in second water catch bowl and the third water catch bowl, the support column makes the organism place more stably.

The flow-through dryer is shown in figures 5-1 to 5-3 and comprises a filter chamber 5-1, a vibrator connector 5-4, a buffer plate 5-6, a vent 5-11, a second buffer plate 5-13 and a water collecting tank 5-17, wherein a rubber layer 5-2 is arranged on the inner wall of the filter chamber 5-1, a feed inlet 5-3 is arranged on the left side of the top end of the filter chamber 5-1, the vibrator connector 5-4 is arranged on the right side of the feed inlet 5-3, bolts 5-5 are fixed at two ends of the inner wall of the filter chamber 5-1, the buffer plate 5-6 is arranged between the bolts 5-5, the buffer plate 5-6 is provided with a left row and a right row which are obliquely arranged downwards, the buffer plate 5-6 is symmetrical relative to the central axis of the filter chamber 5-1, and a third water, the buffer plate 5-6 is connected with the filter chamber 5-1 through the bolt 5-5, the arrangement of the buffer plate 5-6 can reduce the speed of the fresh jujubes passing through the filter chamber 5-1, and meanwhile, the impact of the red jujubes in the filter chamber 5-1 can be reduced through the rubber layer 5-2 on the inner wall of the filter chamber 5-1, so that the fresh jujubes are protected, the surfaces of the fresh jujubes are prevented from being damaged due to extrusion, the service performance of the device is reduced, and the third water absorption layer arranged on the surface of the buffer plate 5-6 can absorb the water on the surfaces of the red jujubes in the process of the red ju; the bottom end of the filtering chamber 5-1 is provided with a filtering plate 5-7, the top end of the filtering plate 5-7 is fixed with a first water absorption layer 5-8, the upper end area of the filtering plate 5-7 is equal to the lower surface area of the first water absorption layer 5-8, the arrangement of the first water absorption layer 5-8 reduces the friction force between the fresh jujube and the filtering plate 5-7, thereby accelerating the flowing speed of the fresh jujube on the filtering plate 5-7, simultaneously filtering and absorbing the water on the surface of the jujube, improving the filtering efficiency of the device, the side wall of the filtering chamber 5-1 near the left end of the conveying belt 5-14 is provided with a jujube outlet 5-22, a jujube outlet pipe 5-23 which inclines from the jujube outlet 5-22 to the upper surface of the conveying belt 5-14 is arranged at the position of the jujube outlet 5-22, the left end of the conveying belt 5-14 is positioned right below the outlet of, the filter plate 5-7 is obliquely arranged, namely the horizontal height of one end of the filter plate 5-7, which is close to the jujube outlet 5-22, is lower than the horizontal height of one end of the filter plate 5-7, which is far away from the jujube outlet 5-22, and the red jujubes flow out through the jujube outlet 5-22; a supporting plate 5-9 is fixed on the right side of the filtering chamber 5-1, a fan 5-10 is arranged right above the supporting plate 5-9, a ventilation opening 5-11 is arranged above the fan 5-10, a first baffle plate 5-12 is fixed at the bottom end of the supporting plate 5-9, a second baffle plate 5-13 is arranged between the two first baffle plates 5-12, a conveying belt 5-14 is arranged right below the first baffle plate 5-12 and the second baffle plate 5-13, the first baffle plates 5-12 and the second baffle plates 5-13 are arranged at intervals along the length direction of the conveying belt 5-14, tooth sockets and teeth are arranged at the free ends of the water-absorbing resin plates 5-19, which are adjacent to the upper surface of the conveying belt 5-14, and along the length direction of the conveying belt 5-14: tooth sockets and teeth of adjacent water-absorbing resin plates 5-19 are opposite along the length direction of a conveyor belt 5-14, the tooth sockets and the teeth are identical in size and shape, the tooth sockets and the teeth between the water-absorbing resin plates 5-19 are oppositely arranged, the effective contact area of the fresh jujubes and the water-absorbing resin plates 5-19 is increased, the water filtration efficiency of the fresh jujubes is increased, the use performance of the device is improved, partition plates 5-15 are arranged on the front and back surfaces of the conveyor belt 5-14, discharge plates 5-16 are arranged at the right end of the conveyor belt 5-14, a water collection tank 5-17 is fixed under the conveyor belt 5-14, a collection net 5-18 is fixed at the top end of the water collection tank 5-17, the collection net 5-18 is of a net structure, and the height of the collection net 5-18 is smaller than that of the water collection tank 5-, fresh jujubes flow rapidly in the device, the collecting net 5-18 can collect the fresh jujubes which are separated from the filtering route, and can clean and filter the fresh jujubes for the second time, so as to avoid the waste phenomenon, the surface of the conveyor belt 5-14 is provided with a second water absorbing layer 5-20, the second water absorbing layer 5-20 is provided with filtering holes 5-21, the outer surface of the second water absorbing layer 5-20 is provided with convex structures, the filtering holes 5-21 are positioned between the adjacent convex structures, the arrangement of the convex structures on the outer surface of the second water absorbing layer 5-20 can fix the fresh jujubes for a short time, and simultaneously, the water on the surface of the fresh jujubes is absorbed and filtered through the matching of relative arrangement between tooth sockets and teeth between the water absorbing resin plates 5-19, so as to improve the filtering efficiency of the device.

The working principle is as follows: firstly, the device can be moved to a working position through wheels, the feed inlet 5-3 and the filtering chamber 5-1 are arranged into an integrated structure, the phenomenon that the red dates are damaged due to extrusion of the red dates by a gap at an interface between the feed inlet 5-3 and the filtering chamber 5-1, and waste is caused is avoided, the buffer plates 5-6 are arranged in two rows at the left and the right and are arranged obliquely downwards, the buffer plates 5-6 are symmetrical about the central axis of the filtering chamber 5-1, the surface of the buffer plate 5-6 is provided with a third water absorption layer, the buffer plate 5-6 is arranged on the inner wall of the filtering chamber 5-1 through bolts 5-5, the speed of the fresh dates passing through the filtering chamber 5-1 can be reduced through the buffer plate 5-6, and the speed of the fresh dates can be further reduced through the rubber, the fresh jujubes are protected by the mutual matching of the buffer plates 5-6 and the rubber layers 5-2, so that the fresh jujubes are prevented from being damaged due to the fact that the fresh jujubes are high in speed and the inner wall of the filter chamber 5-1 is too hard, meanwhile, the third water absorbing layer on the surface of the buffer plates 5-6 can absorb moisture on the fresh jujubes, the separation of the moisture carried on the surface of the fresh jujubes in the filter chamber 5-1 is accelerated through the vibration of the vibrator at one end of the vibrator interface 5-4, the time for filtering the device is further shortened, and the filtering efficiency of the device is improved. Fresh red dates are filtered for the first time, flow out of a red date outlet 5-22 and an inclined red date outlet pipe 5-23 which are positioned on the side wall of the left end of a conveyor belt 5-14 adjacent to a filtering chamber 5-1 and are sent to the conveyor belt 5-14, the fresh red dates are subjected to secondary water filtration on the conveyor belt 5-14, the fresh red dates can be simultaneously adsorbed on the surface of the fresh red dates through a second water absorption layer 5-20 on the surface of the conveyor belt 5-14, a first baffle 5-12 and a water absorption resin plate 5-19 detachably mounted on a second baffle 5-13 during conveying, and meanwhile, a fan 5-10 arranged at an air vent 5-11 blows air towards the conveyor belt 5-14 below to accelerate the evaporation of the water on the surface of the fresh red dates; and the filtering holes 5-21 are arranged between the conveyor belt 5-14 and the second water absorption layer 5-20, water on the surface of the fresh jujubes can be filtered, meanwhile, filtered water is collected through the water collecting grooves 5-17, the free ends of the water absorption resin plates on the first baffle 5-12 and the second baffle 5-13 are detachably provided with the water absorption resin plates 5-19, tooth sockets and teeth are arranged on the surfaces of the water absorption resin plates 5-19, the tooth sockets and teeth of the adjacent water absorption resin plates 5-19 are opposite along the length direction of the conveyor belt 5-14, the effective contact area of the fresh jujubes and the water absorption resin plates 5-19 is increased, the filtering efficiency of the equipment is further increased, the fresh jujubes subjected to the first filtering and the second filtering flow out from the discharge holes 5-16 at the right end of the conveyor belt 5-14, and the whole flow-through drying process is.

The cross-flow dryer for the production of the fresh red dates has the advantages of no need of heating, high flexibility, convenience in moving and the like, the feed inlet and the filter chamber are arranged into an integrated structure, the phenomenon that the red dates are extruded by a gap at an interface between the feed inlet and the filter chamber to damage the red dates and waste is avoided, when the red dates enter the filter chamber, in order to reduce the damage to the fresh dates caused by the fact that the inner wall of the filter chamber is too hard, a rubber layer and a buffer plate are arranged on the inner wall of the filter chamber, the buffer plate can reduce the flow velocity of the red dates in the filter chamber, so that a certain buffering effect is achieved, the impact of the inner wall of the filter chamber on the red dates can be reduced through the rubber plate, the red dates can be effectively protected through the cooperation of the rubber layer and the buffer plate, the service performance of the cross-flow dryer is improved, thereby improve the work efficiency of this equipment, carry out the secondary drainage through the conveyer belt to the bright jujube after filtering for the first time, bright jujube can absorb water the layer and absorb water the moisture on bright jujube surface through the second simultaneously when the conveying and adsorb with the resin board that absorbs water, and be provided with between conveyer belt and the flexible glue board and filter the hole, can filter the moisture on bright jujube surface, collect drainage through the water catch bowl simultaneously, the resin board free end that absorbs water has tooth's socket and tooth, tooth's socket and tooth between the adjacent resin board that absorbs water are relative along conveyer belt length direction, the effectual area of bright jujube and the resin board contact that absorbs water has been improved, and then improve the filtration efficiency of this equipment, subsequent processing work to the red date provides convenience.

The roller grader is shown in figures 6-1 to 6-4 and comprises a rack, a grading roller, a driving device, a jujube collector 6-16 and a grading auxiliary device, wherein the grading roller is arranged on the rack through a rotating shaft 6-11, the driving device is in driving connection with the rotating shaft 6-11, the jujube collector 6-16 is positioned below a jujube outlet 6-6 of the grading roller, the grading auxiliary device is arranged in the grading roller, and the grading auxiliary device drives fresh red jujubes in the grading roller to move from one end of the grading roller to the other end.

The grading roller comprises an inner cylinder 6-8 and an outer cylinder 6-5 which are coaxially and fixedly arranged on a rotating shaft 6-11, the inner cylinder 6-8 is positioned in the outer cylinder 6-5, and a grading auxiliary device is arranged in the inner cylinder 6-8; the wall of the inner cylinder 6-8 is provided with a jujube dividing opening 6-7, and the aperture of the jujube dividing opening 6-7 is gradually enlarged from the first end of the inner cylinder 6-8 to the second end of the inner cylinder 6-8; the jujube outlet 6-6 is arranged on the wall of the outer cylinder 6-5, and the aperture of the jujube outlet 6-6 is equal to that of the diametrically opposite jujube dividing opening 6-7.

The grading auxiliary device comprises blades 6-9, a driven shaft 6-20, a chain and a driven gear 6-18, wherein the driven shaft 6-20 is parallel to the rotating shaft 6-11, two ends of a driven shaft 6-20 are mounted on the side wall of the inner cylinder 6-8 through bearings, a driven gear 6-18 is fixedly mounted on the driven shaft 6-20, a driving gear 6-19 is fixedly mounted on a rotating shaft 6-11, the driven gear 6-18 and the driving gear 6-19 are in transmission connection through a chain, the diameter of the driving gear 6-19 is 2-5 times that of the driven gear 6-18, a blade 6-9 is mounted on the driven shaft 6-20 through a fixing seat 6-10, and the distance between the circumscribed circle of the driven gear 6-18 and the inner wall of the inner cylinder 6-8 is 3 cm.

The rack comprises a base 6-1, a fixing frame 6-15 and a bearing 6-4, wherein the left side and the right side of the base 6-1 are respectively provided with a support frame 6-2, the upper end of the support frame 6-2 is provided with a bearing seat 6-3, the bearing 6-4 is positioned on the bearing seat 6-3, and the two ends of a rotating shaft 6-11 are arranged on the support frame 6-2 through the bearing 6-4; a first end of the inner barrel 6-8 is provided with a fresh red date adding channel 6-12, one end of the fresh red date adding channel 6-12 is communicated with the inside of the inner barrel 6-8, and the other end extends to the outer side of the outer barrel 6-5;

the fixed frame 6-15 is positioned at the right side of the base 6-1, the driving device is arranged on the fixed frame 6-15 and comprises a motor 6-14 and a speed reducer 6-13, and the motor 6-14 drives the rotating shaft 6-11 through the speed reducer 6-13.

An arc surface 6-17 is arranged in the jujube collector 6-16, and the base 6-1 and the support frame 6-2 are welded.

The working principle is as follows: firstly, adding fresh jujubes through a fresh jujube adding channel 6-12, passing through an outer barrel 6-5, entering an inner barrel 6-8, starting a motor 6-14, driving a rotating shaft 6-11 to rotate by the motor 6-14, driving the inner barrel 6-8 and the outer barrel 6-5 to rotate together by the rotating shaft 6-11, driving a driven gear 6-18 to rotate by a driving gear 6-19 on the rotating shaft 6-11 through chain transmission, thereby driving a driven shaft 6-20 to rotate, starting rotation of a blade 6-9 fixed on the driven shaft 6-20, enabling the added fresh jujubes to move from the right end to the left end by the rotation of the blade 6-9, enabling the rotating speed of the driven shaft 6-20 to be faster than that of the rotating shaft 6-11 by the driving gear 6-19 being 5 times of the diameter of the driven gear, the fresh jujubes move from the first end of the inner cylinder 6-8 to the second end of the inner cylinder along with the rotation, the fresh jujubes flow out through a jujube separating opening 6-7 with gradually changing large aperture from the first end of the inner cylinder 6-8 to the second end of the inner cylinder 6-8 and fall into a jujube collecting device 6-16 through the jujube outlet 6-6, the fresh jujubes are collected by the jujube collecting device 6-16, and the collision of the fresh jujubes on the jujubes in the falling process can be reduced by the cambered surface 6-17 of the jujube collecting device 6-16. In addition, the outer cylinder and the inner cylinder can be obliquely arranged from left to right, namely the horizontal height of the left end is smaller than that of the right end, so that the fresh red dates can move from right to left in the inner cylinder under the action of self gravity, in order to prevent the fresh red dates from moving too fast in the cylinder and realize a better separation effect, the inclination angle is not easy to be too large, and the included angle between the axes of the outer cylinder and the inner cylinder and the horizontal plane is preferably 2-5 degrees.

The grading auxiliary device is installed in the grading drum, and the driven shaft in the grading auxiliary device is parallel with the axis of rotation of the grading drum, and is connected the driven gear of driven shaft and the driving gear transmission of axis of rotation through chain drive, and the diameter of driven gear and driving gear is different, and the rotational speed of driven shaft and axis of rotation is different, and the accessible motor realizes the rotation to grading drum in with grading auxiliary device for the red date obtains faster separation.

Install the support frame at the base both ends, install bearing frame and axis of rotation on the support frame, when the axis of rotation rotates, the axis of rotation is fixed to the bearing frame, prevent that the axis of rotation from shifting, make the axis of rotation normally rotate, guarantee roller grader normal work, for roller grader's normal operating provides the condition, the bearing frame is installed and can be when guaranteeing the normal work of axis of rotation on the support frame, can also support roller grader's weight, do not influence the rotation of axis of rotation, reduce axis of rotation pivoted frictional force, reduce the consumption of kinetic energy, save the electric energy.

The aperture that divides the jujube mouth that sets up holds grow gradually from the first end of inner tube to the second of inner tube, the axis of rotation drives the driven shaft and goes up the blade rotation, make bright red date with the second end that moves to the inner tube from the first end of inner tube, at the in-process that removes, bright red date installation divides the order from little to big in jujube mouth aperture to separate from dividing the jujube mouth step by step, the completion is to the separation of bright red date, receive the ARC structure in the jujube ware and can reduce the impact that bright red date fell down, guarantee the integrality of bright red date.

The GB2762-2017 is adopted to detect the surface of the produced fresh red dates, and pollutants such as lead, chromium, cadmium, mercury, arsenic, tin, nickel, nitrite, nitrate and the like are detected; detecting pesticide residues on the surfaces of the produced fresh red dates by using GB2763-2016 according to the types of pesticides used by growers, wherein the pesticides used by the growers are not detected; detecting surface pathogenic bacteria of the produced fresh red dates by GB29921-2013, wherein no salmonella, staphylococcus aureus and escherichia coli are detected; the surface mycotoxin of the produced fresh red dates is detected by GB2761-2017, and patulin is not detected. Fully proves that the produced fresh red dates can be directly used without washing. Because the fresh red dates are classified, sorted and fully dried in the production process, the defective fruits are less than 3 percent, the red dates can be transported for sale for a long distance, and the storage time is more than 15 days without mildewing and rotting.

Claims

1. The production process of the fresh red dates is characterized by comprising the following steps:

(S1-1) soaking and cleaning: removing impurities from picked fresh red dates, and then conveying the fresh red dates into a bubble cleaning tank for cleaning, wherein the water temperature is 15-25 ℃, and the ratio of the fresh red dates to water is 1: (1.5-6) kg/L, the cleaning time is 10-20min, and the rotating speed of a rotating shaft (1-5) of the bubble cleaning tank is 5-20 r/min; in the cleaning process, a sterilizing lamp is turned on for sterilization; after cleaning, collecting fresh red dates for later use, wherein the number of water recycling times is 2-20;

(S1-7) packaging and warehousing: respectively packaging and warehousing the special grade fresh red dates and the first grade fresh red dates; transferring the second-grade and below-grade fresh red dates to a jujube slice production process and/or a jujube powder production process;

the bubble washing tank includes: including washing tank (1-1), puddler (1-6) and outlet pipe (1-14), its characterized in that: a bottom cabinet (1-2) is fixed on the left side of the cleaning tank (1-1), a fan (1-3) is installed above the bottom cabinet (1-2), a motor (1-4) is installed on one side of the cleaning tank (1-1), the motor (1-4) is in driving connection with a rotating shaft (1-5), a stirring rod (1-6) is fixed on the outer side surface of the rotating shaft (1-5), a protective cover (1-7) is fixed on the outer side of the rotating shaft (1-5), the stirring rod (1-6) is located in the protective cover (1-7), a brush (1-8) is fixed on the outer side of the protective cover (1-7), a baffle slot (1-9) is formed in the inner side wall of the right side of the cleaning tank (1-1), and a baffle (1-10) is installed inside the baffle slot (1-9), a collecting tank is arranged at the lower right of the baffle (1-10), a collecting box (1-11) is arranged in the collecting tank, a clamping plate (1-12) is fixed on the collecting box (1-11), an inlet (1-13) is arranged at the left side of the collecting box (1-11), the lower edge of the inlet (1-13) is flush with the bottom surface of the cleaning tank (1-1), a water outlet pipe (1-14) is arranged at the bottom of the collecting tank, a germicidal lamp (1-15) is arranged above the middle of the cleaning tank (1-1), a feed inlet (1-16) is arranged above the germicidal lamp (1-15), a speed reducing cloth bag (1-17) is fixed below the feed inlet (1-16), a round blocking piece (1-18) is arranged inside the water outlet pipe (1-14), the edge of the round blocking piece (1-18) is in sealing fit with the inner wall of the water outlet pipe (1-, the round baffle plate (1-18) is fixedly connected with one end of the rotating rod (1-19), and the other end of the rotating rod (1-19) passes through the rotating groove (1-20) on the side wall of the water outlet pipe (1-14) and extends out of the water outlet pipe (1-14); the bottom of the cleaning tank (1-1) is provided with a blast pipe (1-21), the air inlet end of the blast pipe (1-21) is communicated with the air outlet end of the air blower (1-22) through fluid, and the air outlet end of the blast pipe (1-21) is communicated with the fluid in the cleaning tank (1-1); the inner wall of the collecting box (1-11) is provided with a filtering hole with the aperture smaller than the diameter of the red dates; the collecting tank, the water pump (1-23), the water storage tank (1-24) and the cleaning tank (1-1) are communicated in sequence, and a valve (1-25) is arranged on a pipeline between the water storage tank (1-24) and the cleaning tank (1-1); the stirring rods (1-6) are in a fan-blade-shaped structure, and the stirring rods (1-6) are uniformly distributed around the axial center line of the rotating shaft (1-5); the protective cover (1-7) is of a net-shaped hollow structure, the radius of the protective cover (1-7) is larger than the length of the stirring rod (1-6), and the protective cover (1-7) and the brush (1-8) are fixedly connected to form an integrated structure; the height of the baffle (1-10) is greater than that of the right side wall of the cleaning tank (1-1), and the baffle (1-10) is detachably connected with the cleaning tank (1-1) through a baffle slot (1-9); the collecting box (1-11) is of an L-shaped hollow structure, the collecting box (1-11) and the clamping plate (1-12) form an integrated structure through welding, the clamping plate (1-12) is of a groove-shaped structure, and the groove width of the groove-shaped structure of the clamping plate (1-12) is larger than the side wall thickness of the collecting tank.

2. The process for producing fresh red dates according to claim 1, wherein in the step (S1-2), the brush drum washing machine comprises: including organism (2-1), discharge gate (2-4) and motor (2-10), its characterized in that: the upper end of the left side of the machine body (2-1) is connected with a feed opening (2-2), the tail end of the right side of the machine body (2-1) is provided with a clamping block (2-3), the discharge openings (2-4) are distributed on the inner side of the clamping block (2-3), hexagonal bolts (2-5) penetrate through the two sides of the discharge openings (2-4), the upper end of the machine body (2-1) is provided with a water pipe (2-6), the outer side of the water pipe (2-6) is fixedly provided with a water valve (2-7), the inner side of the machine body (2-1) is provided with a rotating shaft (2-8), the periphery of the outer side of the rotating shaft (2-8) is connected with a main brush (2-9) and an auxiliary brush (2-18), the motors (2-10) are distributed on the lower end of the left side of the machine body (2-1), and the power output ends of, the belt pulley (2-12) is fixedly installed on the rotating shaft (2-8) on the leftmost side of the machine body (2-1), the power output end of the motor (2-10) is in driving connection with the belt pulley (2-12) through the belt (2-11), a chain wheel is installed at one end of each rotating shaft (2-8), adjacent rotating shafts (2-8) are in transmission connection with the chain wheel through a chain matched with the chain wheels, a fixing frame (2-13) is arranged at the lower end of the machine body (2-1), the bottom of the fixing frame (2-13) is provided with a roller (2-14), adjusting nuts (2-15) are distributed on the inner side of the water pipe (2-6), a connecting pipe (2-16) is fixed on the inner side of the adjusting nuts (2-15), and a spray head (2-17) is installed at the lower end of the, the spray heads (2-17) are communicated with the connecting pipes (2-16) through fluid, and the connecting pipes (2-16) are communicated with the water pipes (2-6) through fluid; the feed opening (2-2) is of a funnel-shaped structure, and the feed opening (2-2) and the machine body (2-1) are welded; the radius of the chain wheel on the rotating shaft (2-8) is gradually reduced from the inlet end of the fresh red dates to the outlet end of the fresh red dates; the discharge port (2-4) is detachably connected with the machine body (2-1) through a hexagon bolt (2-5) and a clamping block (2-3); the main brushes (2-9) and the auxiliary brushes (2-18) are distributed at the outer side of the rotating shaft (2-8) at intervals, and the width of the main brushes (2-9) along the axial direction of the rotating shaft (2-8) is equal to the width of the auxiliary brushes (2-18) along the axial direction of the rotating shaft (2-8); between two adjacent rotating shafts (2-8): the main brush (2-9) on one rotating shaft (2-8) is opposite to the auxiliary brush (2-18) on the other rotating shaft (2-8), and the bristles of the main brush (2-9) on one rotating shaft (2-8) extend into the bristles of the auxiliary brush (2-18) on the other rotating shaft (2-8); branch pipes are formed on the outer walls of the inner sides of the water pipes (2-6) at equal intervals, adjusting nuts (2-15) are installed on the branch pipes, external threads matched with the internal threads of the adjusting nuts (2-15) are arranged on the outer surfaces of the ends of the connecting pipes (2-16), the free ends of the branch pipes extend into the connecting pipes (2-16), and the branch pipes are detachably connected with the connecting pipes (2-16) through the adjusting nuts (2-15).

3. The fresh red date production process according to claim 1, wherein in the step (S1-3), the spray fruit selector comprises: comprises a spray box (3-6) and a fruit selection machine table (3-12), the fruit selection machine table (3-12) is positioned at the right side of the spray box (3-6), a water pool (3-1) is arranged at the left side of the spray box (3-6), a water tank (3-2) is arranged inside the spraying tank (3-6), the water outlet end of the water tank (3-2) is communicated with the water inlet end of the water delivery pipe (3-3), the water outlet end of the water pipe (3-3) is communicated with the water inlet end of the spray head (3-5) through fluid, the bottom of one side of the spray box (3-6) close to the water pool (3-1) is provided with a water outlet (3-4), a filter plate (3-17) is arranged below the spray head (3-5), and the water outlet (3-4) is communicated with the space fluid below the filter plate (3-17); a discharge port is arranged at the bottom of one side of the spraying box (3-6) close to the fruit selecting machine table (3-12), a vibrating plate (3-10) is arranged on the fruit selecting machine table (3-12), a sieve plate (3-8) is arranged on the vibrating plate (3-10), a sliding plate (3-7) is arranged at the discharge port, the discharge end of the sliding plate (3-7) is positioned above the sieve plate (3-8), a fruit box (3-9) is arranged below the sieve plate (3-8), a vibrating motor (3-11) is arranged at the right side of the fruit selecting machine table (3-12), the left side of the vibrating motor (3-11) is connected with the vibrating plate (3-10), a support frame (3-14) is fixedly arranged at the bottom of the fruit selecting machine table (3-12), and rollers (3-13) are arranged at the bottom of the support frame (3, the top of the spraying box (3-6) is provided with a fruit inlet (3-15), and the surface of the sieve plate (3-8) is provided with sieve pores (3-16); the filter plates (3-17) are arranged in the spraying boxes (3-6): the filter plate is inclined by 10-30 degrees from one side adjacent to the water pool (3-1) to the direction of the discharge port, namely the horizontal height of one side of the filter plate (3-17) adjacent to the water pool (3-1) is greater than that of the discharge port; the vibrating plate (3-10) is inclined 5-15 degrees from left to right on the fruit selecting machine table (3-12), namely the horizontal height of one end, close to the spraying box (3-6), of the vibrating plate (3-10) is larger than the horizontal height of one end, far away from the spraying box (3-6), of the vibrating plate (3-10); the shapes of the sieve plates (3-8) are arc-shaped, five or more sieve plates are arranged on the vibrating plate (3-10) in parallel from left to right, and the aperture of each sieve hole (3-16) on each sieve plate (3-8) from left to right is gradually increased; the spray pipes (3-18) are arranged right above the sieve plates (3-8), and the water spray ports of the spray pipes (3-18) are opposite to the sieve plates (3-8); from left to right on the vibrating plate (3-10), the aperture of the sieve pore (3-16) on the first sieve plate (3-8) is less than or equal to 1 cm, the aperture of the sieve pore (3-16) on the second sieve plate (3-8) is greater than 1 cm and less than or equal to 2 cm, the aperture of the sieve pore (3-16) on the third sieve plate (3-8) is greater than 2 cm and less than or equal to 3cm, the aperture of the sieve pore (3-16) on the fourth sieve plate (3-8) is greater than 3cm and less than or equal to 3.5 cm, and the aperture of the sieve pore (3-16) on the fifth sieve plate (3-8) is greater than 6 cm.

4. The process for producing fresh red dates according to claim 1, wherein in the step (S1-4), the vibratory draining machine comprises: comprises a machine body (4-1), a first conveyor belt (4-4) and a brush (4-8), wherein two first fixing plates (4-3) are horizontally arranged above the interior of the machine body (4-1), a first vibrating motor (4-2) is arranged on the inner wall of the machine body (4-1) at one side of the first fixing plate (4-3), a first rotating shaft (4-18) is arranged between the two first fixing plates (4-3), a first belt pulley is arranged on the first rotating shaft (4-18), the first conveying belt (4-4) is positioned between the two first fixing plates (4-3) and is arranged on the first belt pulley, the upper surfaces of the two first fixing plates (4-3) are respectively provided with a first baffle (4-5), and the first vibration motor (4-2) is in contact connection with the first fixing plates (4-3) through a connecting pipe; a feeding port (4-6) is arranged at the top of the left upper part of the machine body (4-1), a connecting rod (4-7) is fixed on the inner wall of the top of the machine body (4-1), and a brush (4-8) is arranged below the connecting rod (4-7); a water outlet (4-14) is arranged on the side wall at the lower left of the machine body (4-1), a first water collecting tank (4-15) fixedly connected with the first fixing plate (4-3) is arranged below the first conveyor belt (4-4), a first water pump (4-16) and a first pipeline (4-17) are arranged below the first water collecting tank (4-15), the water inlet end of the first water pump (4-16) is communicated with the fluid in the first water collecting tank (4-15), the water outlet end of the first water pump (4-16) is communicated with the water inlet end of the first pipeline (4-17), the water outlet end of the first pipeline (4-17) is communicated with the fluid in the water outlet (4-14), a first rotating shaft (4-18) is in driving connection with a first motor (4-19), and the first conveyor belt (4-4) is a hollowed mesh conveyor belt; two second fixing plates are horizontally arranged below the inner part of the machine body (4-1), a second vibration motor is arranged on the inner wall of the machine body (4-1) on one side of the second fixing plates, a second rotating shaft is arranged between the two second fixing plates, a second belt pulley is arranged on the second rotating shaft, a second conveying belt (4-9) is positioned between the two second fixing plates and arranged on the second belt pulley, second baffles are arranged on the upper surfaces of the two second fixing plates, and the second vibration motor is in contact connection with the second fixing plates through connecting pipes; a second water collecting tank fixedly connected with the second fixing plate is arranged below the second conveying belt (4-9), a second water pump and a second pipeline are installed below the second water collecting tank, the water inlet end of the second water pump is communicated with fluid in the second water collecting tank, the water outlet end of the second water pump is communicated with the water inlet end of the second pipeline, the water outlet end of the second pipeline is communicated with fluid in a water outlet (4-14), a second rotating shaft is in driving connection with a second motor, the second conveying belt (4-9) is a hollowed mesh conveying belt, and a discharge hole (4-12) is formed in the lower right side of the second conveying belt (4-9); two third fixing plates are horizontally arranged in the machine body (4-1) and are positioned right below the first water collecting tank (4-15) and right above the second conveying belt (4-9), a third vibrating motor is arranged on the inner wall of the machine body (4-1) on one side of each third fixing plate, a third rotating shaft is arranged between the two third fixing plates, a third belt pulley is arranged on the third rotating shaft, the third conveying belt (4-11) is positioned between the two third fixing plates and is arranged on the third belt pulley, third baffle plates are arranged on the upper surfaces of the two third fixing plates, and the third vibrating motor is in contact connection with the third fixing plates through a connecting pipe; a third water collecting tank fixedly connected with a third fixing plate is arranged below the third conveyor belt (4-11), a third water pump and a third pipeline are arranged below the third water collecting tank, the water inlet end of the third water pump is communicated with fluid in the third water collecting tank, the water outlet end of the third water pump is communicated with the water inlet end of the third pipeline, the water outlet end of the third pipeline is communicated with the fluid at the water outlet (4-14), a third rotating shaft is in driving connection with a third motor, and the third conveyor belt (4-11) is a hollow mesh conveyor belt; a support column (4-13) is fixed below the machine body (4-1); the first rotating shaft (4-18) rotates along the clockwise direction, the third rotating shaft rotates along the anticlockwise direction, the second rotating shaft rotates along the clockwise direction, a third fan (4-20) is installed on the inner wall of the machine body (4-1) above the right of the third conveying belt (4-11), and a second fan (4-10) is installed on the inner wall of the machine body (4-1) above the left of the second conveying belt (4-9); the first conveyor belt (4-4), the second conveyor belt (4-9) and the third conveyor belt (4-11) are of a parallel structure, and the lengths of the first conveyor belt (4-4), the second conveyor belt (4-9) and the third conveyor belt (4-11) are smaller than that of the machine body (4-1); the plate surface of the first baffle (4-5) is vertical to the bearing surface of the first conveyor belt (4-4), and the thickness of the first baffle (4-5) is the same as that of the first fixing plate (4-3); the plate surface of the second baffle is vertical to the bearing surface of the second conveyor belt (4-9), and the thickness of the second baffle is the same as that of the second fixed plate; the plate surface of the third baffle is vertical to the bearing surface of the third conveyor belt (4-11), and the thickness of the third baffle is the same as that of the third fixed plate; the air outlet of the second fan (4-10) is parallel to the bearing surface of the second conveyor belt (4-9), and the air outlet of the third fan (4-20) is parallel to the bearing surface of the third conveyor belt (4-11); the mesh on the mesh conveyor belt has a pore size of 0.5-1.5 cm.

5. The process for producing fresh red dates according to claim 1, wherein in the step (S1-5), the flow-through dryer comprises: comprises a filter chamber (5-1), a vibrator interface (5-4), a buffer plate (5-6), a vent (5-11), a second baffle plate (5-13) and a water collection tank (5-17), wherein the inner wall of the filter chamber (5-1) is provided with a rubber layer (5-2), the left side of the top end of the filter chamber (5-1) is provided with a feed inlet (5-3), the vibrator interface (5-4) is arranged on the right side of the feed inlet (5-3), the buffer plate (5-6) is arranged on the inner wall of the filter chamber (5-1) through a bolt (5-5), the bottom of the filter chamber (5-1) is provided with a filter plate (5-7), the upper surface of the filter plate (5-7) is provided with a first water absorption layer (5-8), and the outer surface of the right side wall of the filter chamber (5-1), a fan (5-10) is arranged right above the supporting plate (5-9), the ventilation opening (5-11) is arranged above the fan (5-10), a first baffle plate (5-12) is fixed on the lower bottom surface of the supporting plate (5-9), a second baffle plate (5-13) is arranged between the two first baffle plates (5-12), a conveyor belt (5-14) is arranged right below the first baffle plate (5-12) and the second baffle plate (5-13), two sides of the conveyor belt (5-14) are provided with baffle plates (5-15) along the length direction, the right end of the conveyor belt (5-14) is provided with a discharge plate (5-16), the water collecting tank (5-17) is arranged right below the conveyor belt (5-14) and the filter plate (5-7), and a collecting net (5-18) is fixed at the notch of the water collecting tank (5-17), the free ends of the first baffle (5-12) and the second baffle (5-13) close to the upper surface of the conveyor belt (5-14) are detachably provided with water-absorbing resin plates (5-19), the surface of the conveyor belt (5-14) is provided with a second water-absorbing layer (5-20), and the second water-absorbing layer (5-20) is provided with filtering holes (5-21); the buffer plates (5-6) are arranged in a left row and a right row and are all obliquely arranged downwards, the buffer plates (5-6) are symmetrical about the central axis of the filter chamber (5-1), and a third water absorption layer is arranged on the surface of each buffer plate (5-6); the upper surface area of the filter plate (5-7) is equal to the lower surface area of the first water absorption layer (5-8), a jujube outlet (5-22) is formed in the side wall, close to the left end of the conveyor belt (5-14), of the filter chamber (5-1), a jujube outlet pipe (5-23) which inclines towards the upper surface of the conveyor belt (5-14) from the jujube outlet (5-22) is installed at the position of the jujube outlet (5-22), the left end of the conveyor belt (5-14) is located right below an outlet of the jujube outlet pipe (5-23), and the filter plate (5-7) is installed in an inclined mode, namely the horizontal height of one end, close to the jujube outlet (5-22), of the filter plate (5-7) is lower than the horizontal height of one end, far away from the jujube outlet (5-22), of the filter plate; the first baffle plates (5-12) and the second baffle plates (5-13) are arranged at intervals along the length direction of the conveyor belt (5-14), the free ends of the water-absorbent resin plates (5-19) adjacent to the upper surface of the conveyor belt (5-14) are provided with tooth grooves and tooth teeth, and along the length direction of the conveyor belt (5-14): tooth sockets and teeth of the adjacent water-absorbing resin plates (5-19) are opposite along the length direction of the conveyor belt (5-14), and the size and the shape of the tooth sockets and the teeth are matched; the collecting net (5-18) is of a net structure, and the height of the bottom of the collecting net (5-18) is greater than that of the bottom of the water collecting tank (5-17); the outer surface of the second water absorption layer (5-20) is provided with convex structures, and the filtering holes (5-21) are positioned between the adjacent convex structures.

6. The fresh red date production process according to claim 1, wherein in the step (S1-6), the drum grader includes: the device comprises a rack, a grading roller, a driving device, jujube collecting devices (6-16) and a grading auxiliary device, wherein the grading roller is arranged on the rack through a rotating shaft (6-11), the driving device is in driving connection with the rotating shaft (6-11), the jujube collecting devices (6-16) are positioned below a jujube outlet (6-6) of the grading roller, the grading auxiliary device is arranged in the grading roller, and the grading auxiliary device drives fresh red jujubes in the grading roller to move from one end of the grading roller to the other end; the grading roller comprises an inner cylinder (6-8) and an outer cylinder (6-5) which are coaxially and fixedly arranged on a rotating shaft (6-11), the inner cylinder (6-8) is positioned in the outer cylinder (6-5), and the grading auxiliary device is arranged in the inner cylinder (6-8); the wall of the inner cylinder (6-8) is provided with a jujube separating port (6-7), and the aperture of the jujube separating port (6-7) is gradually enlarged from the first end of the inner cylinder (6-8) to the second end of the inner cylinder (6-8); the jujube outlet (6-6) is arranged on the wall of the outer cylinder (6-5), and the aperture of the jujube outlet (6-6) is equal to that of the diametrically opposite jujube dividing opening (6-7); the grading auxiliary device comprises blades (6-9), a driven shaft (6-20), a chain and driven gears (6-18), wherein the driven shaft (6-20) is parallel to a rotating shaft (6-11), two ends of the driven shaft (6-20) are installed on the side wall of an inner cylinder (6-8) through bearings, the driven gears (6-18) are fixedly installed on the driven shaft (6-20), driving gears (6-19) are fixedly installed on the rotating shaft (6-11), the driven gears (6-18) are connected with the driving gears (6-19) through the chain in a transmission mode, the diameter of the driving gears (6-19) is 2-5 times that of the driven gears (6-18), the blades (6-9) are installed on the driven shaft (6-20) through fixing seats (6-10), the distance between the circumcircle of the driven gear (6-18) and the inner wall of the inner cylinder (6-8) is 2-10 cm; the rack comprises a base (6-1), a fixing frame (6-15) and a bearing (6-4), wherein the left side and the right side of the base (6-1) are respectively provided with a support frame (6-2), the upper end of the support frame (6-2) is provided with a bearing seat (6-3), the bearing (6-4) is positioned on the bearing seat (6-3), and two ends of a rotating shaft (6-11) are arranged on the support frame (6-2) through the bearing (6-4); a fresh red date adding channel (6-12) is formed in the first end of the inner barrel (6-8), one end of the fresh red date adding channel (6-12) is communicated with the inside of the inner barrel (6-8), and the other end of the fresh red date adding channel extends to the outer side of the outer barrel (6-5); the fixed frame (6-15) is positioned on the right side of the base (6-1), the driving device is installed on the fixed frame (6-15), the driving device comprises a motor (6-14) and a speed reducer (6-13), and the motor (6-14) drives the rotating shaft (6-11) through the speed reducer (6-13); an arc surface (6-17) is arranged in the jujube collector (6-16), and the base (6-1) and the support frame (6-2) are welded.