CN112985037B - Cleaning and draining device for potato agricultural products - Google Patents

Abstract

The invention discloses a cleaning and draining device for potato agricultural products, which comprises a cleaning unit, a draining unit and a drying unit, wherein the cleaning unit is used for cleaning and draining the potato agricultural products; the cleaning unit comprises a rough cleaning assembly and a fine cleaning assembly, the rough cleaning assembly comprises a rough cleaning box, a micro-vibration filter screen is obliquely arranged in the rough cleaning box, a rough cleaning space is formed above the micro-vibration filter screen, a precipitation space is formed below the micro-vibration filter screen, a feeding port is arranged at the top of the rough cleaning box and close to the high point of the micro-vibration filter screen, a first discharging port is arranged at the side wall of the rough cleaning space and at the low point of the micro-vibration filter screen, and a first material conveying screw rod is arranged at the low point of the micro-vibration filter screen; the fine washing assembly comprises a first conveying pipe which is obliquely arranged, the lower end of the first conveying pipe is communicated with a first discharge port, a second conveying screw rod is arranged at the center in the first conveying pipe, a plurality of washing rolling brushes are arranged in the first conveying pipe around the second conveying screw rod, a spray head is arranged on the side wall of the upper portion of the upper end of the first conveying pipe, and a discharge port is arranged on the side wall of the lower portion of the upper end of the first conveying pipe. The washing and draining device is high in washing efficiency and not easy to damage the skins of the potato crops.

Description

Cleaning and draining device for potato agricultural products

technical field

The invention relates to the technical field of agricultural machinery and equipment, in particular to a cleaning and draining device for potato agricultural products.

Background technique

Potato agricultural products are also called rhizome agricultural products, mainly including sweet potato, potato, yam, taro, etc. Potato agricultural products are usually grown in the field, and the potato agricultural products are harvested from the field. After preliminary removal of impurities, the skin of the potato agricultural products remains With a lot of mud, such potato agricultural products can neither meet the requirements of commodities, nor is it conducive to the later storage and transportation of potatoes. Therefore, descaling is the first procedure for potato agricultural products to enter the market.

At present, the rod lifting chain type soil and potato separation mechanism, the sieve type soil and potato separation mechanism and the arc-shaped gear tooth type soil and potato separation mechanism are used more, but these machines still have some shortcomings: 1. The soil on the surface of potato agricultural products It cannot be completely cleaned, especially the soil in the pits of the bud holes; 2. The skin of potato agricultural products is easily damaged, which is not conducive to the later storage of potato agricultural products; 3. The cleaning efficiency is low, and it is time-consuming and labor-intensive. High-speed cleaning of potato agricultural products.

Contents of the invention

The invention aims to provide a cleaning and draining device for potato agricultural products to solve the technical problems of low cleaning efficiency, unclean cleaning and easy peeling of existing potato agricultural products.

In order to achieve the above object, the cleaning and draining device for potato agricultural products provided by the present invention includes a cleaning unit, a draining unit and a drying unit;

The cleaning unit includes a rough cleaning component and a fine cleaning component, the rough cleaning component includes a rough cleaning box, the rough cleaning box has a water inlet and a water outlet, and a micro-vibration filter screen is inclined inside the rough cleaning box, so A coarse washing space is formed above the micro-vibration filter screen, and a sedimentation space is formed below the micro-vibration filter screen. The top of the rough cleaning tank and the high point near the micro-vibration filter screen are provided with a potato agricultural product into the rough cleaning space. The side wall of the coarse cleaning space is provided with a first discharge port at the low point of the micro-vibration filter, and the first discharge port is installed at the low point of the micro-vibration filter Conveyor screw rod; the fine cleaning assembly includes first feed pipes corresponding to the first discharge ports and arranged obliquely, and the lower ends of each of the first feed pipes correspond to a first discharge port connected, the center of the first feeding pipe is equipped with a second feeding screw rod, and a plurality of cleaning roller brushes are arranged around the second feeding screw rod in the first feeding pipe, and the first feeding pipe The upper side wall of the upper end is provided with an opening, the opening is equipped with a nozzle for spraying water into the first feeding pipe, and the lower side wall of the upper end of the first feeding pipe is provided with a discharge port;

The draining unit includes a draining box, and a draining net is inclined in the draining box. A draining space is formed above the draining net, and a temporary storage space is formed at the bottom of the draining net. The upper part of the draining box is close to The high point of the drain net is provided with a second feed port connected to the first discharge port, and an air blowing assembly is arranged above the drain space, and the air blow assembly is used to deliver air to the drain space, and the drain space The side wall of the drain net is provided with a second discharge port at the low point of the drainage net;

The drying unit includes a drying box body, the drying box body has a third material inlet and a third material outlet, and the third material inlet is connected to the second material outlet through an obliquely arranged second material delivery pipe. The feed port is connected, and the third discharge port is used to transport the washed and dried potato agricultural products outward.

Preferably, the coarse cleaning assembly further includes an aeration mechanism, which includes an aerator located on the upper part of the rough cleaning tank and a plurality of aeration pipes extending into the rough cleaning space and communicating with the air outlets of the aerator, Aeration holes are evenly distributed on the side wall of the aeration pipe.

Preferably, the bottom of the temporary storage space is provided with a drainpipe communicating with the temporary storage space, and the end of the drainpipe extends into the coarse washing space.

Preferably, the micro-vibration filter includes an upper micro-vibration filter, a lower micro-vibration filter, and an evenly distributed telescopic piece connecting the upper micro-vibration filter and the lower micro-vibration filter. A single part of the micro-vibration upper filter The pore size is larger than the single pore size of the filter screen under microvibration.

Preferably, it also includes a first drive device for driving the micro-vibration filter to move slightly up and down, the first drive device includes a first motor, a housing, a vertical plate, a crank, a sliding seat and a lifting rod, and the housing It is fixed on the upper part of the top plate of the coarse cleaning box, the vertical plate is vertically set in the housing, the first motor is fixed on the vertical plate, and one end of the crank is fixed on the output shaft of the first motor. The other end of the crank is hinged with the upper end of the lifting rod. The sliding seat is fixed on the bottom of the vertical plate. The lower end of the lifting rod slides through the sliding seat and the top plate of the coarse cleaning box, and is connected with the micro-vibration upper filter. The center is connected.

Preferably, both the micro-vibration upper filter screen and the micro-vibration lower filter screen are metal meshes.

Preferably, a material partition is provided on the outside of the first conveying screw, and a single row of upper and lower passages is formed between the material partition and the vibrating filter screen.

Preferably, a plurality of feeding boards are arranged obliquely and staggered in the drying box, and the gap formed between the end of the upper feeding board and the beginning of the lower feeding board can be larger through a single row. For potato agricultural products with particle size, a heat outlet pipe is installed on the lower surface of the starting end of the feed plate, and the heat outlet pipe has an air outlet for releasing hot air to the bottom of the feed plate, and a fan and a fan are installed outside the drying box. A heater, the air outlet pipe of the fan communicates with the heat outlet pipe, and the heater is installed on the air outlet pipe of the fan.

Preferably, a steering wheel is provided at the intersection of two adjacent material passing plates, and a plurality of material distribution plates are uniformly arranged on the peripheral surface of the steering wheel, and the position of the drying box corresponding to the material distribution plates is equipped with Scuff pads.

The beneficial effect of the present invention is reflected in: the potato agricultural products entering the rough washing space are soaked, aerated and tumbling, and slightly vibrated by the rough washing components, so that the hard soil on the skin of the potato agricultural products is softened and separated, and the rough washing is carried out in water. It is not easy to damage the skin of the potato agricultural products during cleaning. After the rough washing is completed, it enters the first conveying pipe for fine washing. The second conveying screw can drive the potato agricultural products to move upward. During the upward movement, the potato agricultural products leave the rough washing box At the same time, the rotating cleaning roller brush can clean the soil in the pits of potato agricultural products, and the soil produced by cleaning will naturally enter the rough cleaning tank under the impact of the water sprayed from the nozzle, so that the water can be reused. Washing adopts the method of cleaning the roller brush and the nozzle, and the skin of the potato agricultural products will not be damaged during fine washing. After cleaning, the potato agricultural products enter the drain box for draining. When netting, under the action of the air blowing component, the residual water and a small amount of soil on the surface of the potato agricultural products can be removed, and the potato agricultural products can be further purified. After the potato agricultural products are drained by the drain box, they enter the drying box for drying , the drying method is that the potato agricultural products move slowly on the feeding plate, and the heat outlet pipe installed on the lower surface of the feeding plate releases heat, so that the potato agricultural products are dried at a temperature of 30°C-35°C, and the drying effect is good. When the potato agricultural products enter the intersection of the upper and lower two feeding plates, the steering wheel is used to change the direction, which can further avoid the rigid collision of the potato agricultural products, thereby effectively protecting the potato agricultural products. To sum up, the washing and draining device for potato agricultural products has high cleaning efficiency, and is not easy to damage the epidermis of potato crops during cleaning.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific embodiments or the prior art.

Fig. 1 is the structural representation of the cleaning and draining device that the potato agricultural product of the embodiment of the present invention is used;

Fig. 2 is a schematic structural view of the drying unit in Fig. 1;

Fig. 3 is an enlarged view of A in Fig. 1 .

In the attached picture:

Cleaning unit 1, coarse cleaning box 100, water inlet 101, water outlet 102, micro-vibration upper filter 103a, telescopic element 103b, micro-vibration lower filter 103c, feeding port 104, first material outlet 105, first feeding Screw rod 106, material partition plate 107, first feeding pipe 110, second feeding screw rod 111, cleaning roller brush 112, nozzle 113, discharge port 114, aeration pipe 121, aeration hole 122, first motor 130, housing 131, vertical plate 132, crank 133, sliding seat 134, lifting rod 135;

Draining unit 2, draining box 200, draining net 201, second feed port 202, air blowing assembly 203, second discharge port 204, drain pipe 205;

Drying unit 3, drying box 300, third material inlet 301, third material outlet 302, material passing plate 303, heat outlet pipe 304, fan 305, heater 306, steering wheel 307, material distribution plate 308, The second feed pipe 309 .

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

Referring to FIG. 1 to FIG. 3 , this embodiment discloses a cleaning and draining device for potato agricultural products, which includes a cleaning unit 1 , a draining unit 2 and a drying unit 3 . Among them, the cleaning unit 1 is used to clean the soil on the surface of the potato agricultural products, the draining unit 2 is used to remove the moisture on the surface of the potato agricultural products after cleaning, and the drying unit 3 is used to dry the surface of the potato agricultural products to keep the potato agricultural products dry for a long time , which is conducive to later transportation and storage.

As shown in FIG. 1 , the cleaning unit 1 includes a coarse cleaning component and a fine cleaning component. The potato agricultural products are firstly cleaned and then finely washed, so as to reduce energy consumption and improve cleaning efficiency. Specifically, the coarse cleaning assembly includes a rough cleaning box 100, the rough cleaning box 100 is preferably a cuboid, the rough cleaning box 100 has a water inlet 101 and a water outlet 102, the water inlet 101 is preferably set up on the top of the rough cleaning box 100, and the water outlet 102 is preferably set up At the bottom of the coarse cleaning tank 100 , a water outlet valve with a filtering device is arranged at the water outlet 102 , and the water outlet valve can control the outflow velocity of the water in the rough cleaning tank 100 .

In the coarse cleaning box 100, a micro-vibration filter screen 103 is inclined, and a coarse cleaning space is formed above the micro-vibration filter screen 103, and a sedimentation space is formed below the micro-vibration filter screen 103, and the top of the rough cleaning box 100 is close to the micro-vibration filter screen 103 The high point is provided with a feeding port 104 for putting potato agricultural products into the coarse washing space, the angle between the micro vibration filter screen 103 and the horizontal plane is between 1°-2°, and the side wall of the rough washing space is located The position of the 103 low points is provided with a first discharge port 105, and the potato agricultural products enter the rough washing space from the feed port 104 and are naturally collected to the lower part of the micro-vibration filter screen 103 by the inclined setting of the micro-vibration filter screen 103 (i.e. The first discharge port 105 is collected), and the low point of the micro-vibration filter screen 103 is equipped with the first feed screw rod 106 to the first discharge port 105 feeding, the center both sides of the first feed screw rod 106 The direction of the screw blade is opposite, and the driving setting (not shown in the figure) of the first feeding screw rod 106 is at the top of the rough cleaning case 100, and the first feeding screw rod 106 can make the water entering the first feeding screw rod 106 place Potato agricultural products gather at both ends, and each of the first feeding screw rods 106 is provided with a first discharge port 105 , that is, the rough washing box 100 has two first discharge ports 105 .

The fine cleaning assembly includes a first delivery pipe 110 corresponding to the first discharge port 105 and inclined, that is, there are two first delivery pipes 110, and the lower end of each first delivery pipe 110 corresponds to a The first discharge port 105 is connected, and the center in the first feed pipe 110 is equipped with a second feed screw rod 111, and the second feed screw rod 111 can transport the potato agricultural products at the first discharge port 105 upwards, A plurality of cleaning roller brushes 112 are arranged around the second feeding screw rod 111 in the first feed pipe 110, and the potato agricultural products in the first feed pipe 110 are rotated and brushed by the cleaning roller brushes 112 during the upward conveying process, and the cleaning The preferred soft rubber of the bristle of rolling brush 112, its service life is long, and can not damage the epidermis of potato class agricultural product, the upper side wall of the first delivery pipe 110 upper end is provided with opening, and the opening is provided with the first delivery pipe. The nozzle 113 for spraying water in the material pipe 110, the nozzle 113 is externally connected to a clean water source, the nozzle 113 sprays a clean water source into the first material delivery pipe 110, cooperates with the cleaning roller brush 112 to clean, and can clean the remaining soil on the surface of potato agricultural products without damage. The lower side wall of the upper end of the first feeding pipe 110 is provided with a discharge opening 114;

As shown in Figure 3, the second feeding screw rod and a plurality of cleaning roller brushes 112 are driven by the second driving device, and the second driving device includes a second motor 140, a driving gear 141 and a driven gear 142, and the second motor 140 is fixed Located on the upward extension line of the first feeding pipe 110, a driving gear 141 is installed on the output shaft of the second motor 140, and the driving gear 141 is coaxially fixedly connected with the shaft portion of the second feeding screw rod 111, and each cleaning roller The axle end of brush 112 is provided with a driven gear 142, and driven gear 142 is meshed with driving gear 141 transmission, and second motor 140 can drive the second feeding screw rod 111 and cleaning roller brush 112 to rotate simultaneously like this, helps To reduce energy consumption and optimize installation space.

The draining unit 2 includes a draining box 200. A draining net 201 is tiltedly arranged in the draining tank 200. A draining space is formed above the draining net 201. A temporary storage space is formed at the bottom of the draining net 201. The top of the draining box 200 is close to the draining net. The high point of 201 is provided with the second feeding port 202 that links to each other with discharging port 114, and the top of draining space is provided with air blowing assembly 203, and blowing assembly 203 is used for delivering air to draining space, and the sidewall of draining space is positioned at The position at the low point of the drainage net 201 is provided with a second discharge port 204. When the potato agricultural products entering the drainage space pass through the drainage net 201, under the action of the air blowing component 203, the residual water and extremes on the skin of the potato agricultural products can be removed. A small amount of dirt.

As shown in Figure 2, the drying unit 3 includes a drying box body 300, the drying box body 300 has a third material inlet 301 and a third material outlet 302, and the third material inlet 301 passes through the second feeding port 302 provided at an incline. The material pipe 309 communicates with the second discharge port 204, and the third discharge port 302 is used for conveying the washed and dried potato agricultural products to the outside.

In this embodiment, in order to further improve the cleaning efficiency, preferably, the rough cleaning assembly further includes an aeration mechanism, and the aeration mechanism includes an aerator (not shown) located on the upper part of the rough cleaning box 100 and an aerator extending into the rough cleaning tank 100. There are a plurality of aeration pipes 121 connected to the air outlet of the aerator in the space. Aeration holes 122 are evenly distributed on the side walls of the aeration pipes 121. The aperture of the aeration holes 122 is between 0.5-2mm, preferably 1mm. An air distribution plate is connected between the aerator and the aeration pipe 121, and the gas output by the aeration pipe 121 is preferably 2MPa-3MPa high-pressure gas, and the potato agricultural products are rolled and stirred by using the high-pressure gas, thereby realizing the effect of quick cleaning.

In this embodiment, the air source of the aeration mechanism and the air source of the air blowing assembly 203 are the same air source, but the air delivery pipeline of the air blowing assembly 203 is provided with a pressure relief assembly, and the function of the pressure relief assembly is to make the air blowing assembly What the 203 conveys is normal pressure gas.

In this embodiment, the bottom of the temporary storage space is provided with a drainage pipe 205 communicating with the temporary storage space. The end of the drainage pipe 205 extends into the rough washing space, and the wastewater produced by the fine washing is used for rough washing, which can further improve the water resources. utilization rate.

In this embodiment, the micro-vibration filter screen 103 includes a micro-vibration upper filter screen 103a, a micro-vibration lower filter screen 103c, and an evenly distributed telescopic member 103b connecting the micro-vibration upper filter screen 103a and the micro-vibration lower filter screen 103c. The single aperture of the upper filter screen 103a is greater than the single aperture of the lower filter screen 103c of the micro-vibration, so that the mud block of larger particles can be avoided from blocking the upper filter screen 103a of the micro-vibration. Cover, the rod body connected to the filter screen 103c under the micro-vibration and the spring built in the rod sleeve and connected to the upper end of the rod body, the micro-vibration filter screen 103 micro-vibration cleaning potato agricultural products can be realized by setting the telescopic part 103b.

In this embodiment, it also includes a first drive device for driving the micro-vibration filter screen 103 to move up and down slightly, and the first drive device includes a first motor 130, a housing 131, a vertical plate 132, a crank 133, and a sliding seat 134 and lifting rod 135, the housing 131 is fixed on the top of the top plate of the rough washing box 100, the vertical plate 132 is erected in the housing 131, the first motor 130 is fixed on the vertical plate 132, and one end of the crank 133 is fixed on the On the output shaft of the first motor 130, the other end of the crank 133 is hinged with the upper end of the elevating rod 135, and the sliding seat 134 is fixed on the bottom of the vertical plate 132, and the lower end of the elevating rod 135 slides through the sliding seat 134. The top plate of the washing box 100 is connected to the center of the micro-vibration upper filter screen 103a. The first motor 130 drives the crank 133 to rotate, thereby driving the elevating rod 135 to swing up and down, and then realizes the micro-vibration filter screen 103 to move up and down slightly.

In this embodiment, a material partition 107 is provided on the outside of the first feeding screw 106, and a single row of upper and lower passages is formed between the material partition 107 and the micro-vibration filter screen 103, and the cross section of the material partition 107 The surface is preferably arc-shaped to match the first feeding screw 106, so that the quantity of potato agricultural products entering the first feeding screw 106 can be limited, thereby preventing the accumulation of potato agricultural products.

As shown in Fig. 2, a plurality of feeding boards 303 are arranged obliquely and staggered in the drying box 300, and the gap formed between the end of the upper feeding board 303 and the beginning of the lower feeding board 303 can pass through A single row of large-sized potato agricultural products, the lower surface of the beginning of the feeding plate 303 is equipped with a heat outlet pipe 304, and the heat outlet pipe 304 has an air outlet for releasing hot air below the feeding plate 303, and the outside of the drying box 300 is set There is a fan 305 and a heater 306 , the outlet pipe of the fan 305 communicates with the heat outlet pipe 304 , and the heater 306 is installed on the outlet pipe of the fan 305 .

In this embodiment, the heater 306 is preferably an electric heater, and the air outlet pipe of the fan 305 can communicate with the heat outlet pipe 304 through a ventilating hose, which is convenient for installation.

In this embodiment, a diversion plate 307 is provided at the junction of two adjacent material passing plates 303, and a plurality of distribution plates 308 are uniformly arranged on the peripheral surface of the diversion plate 307, and the drying box 300 corresponds to the distribution plate 308. The position is equipped with an anti-scratch pad (not shown in the figure).

Based on the above, this embodiment provides a washing and draining device for potato agricultural products. After the potato agricultural products entering the rough washing space are soaked in the rough washing components, aerated and tumbling, and slightly vibrated, the hard soil on the surface of the potato agricultural products softening and detachment, because the rough washing is carried out in water, the skin of the potato agricultural products is not easy to be damaged during cleaning. After the rough washing is completed, it enters the first feeding pipe 110 for fine washing, and the second feeding screw 110 can drive the potato agricultural products. In the process of moving and moving up, the potato agricultural products are separated from the sewage in the rough washing box, and the cleaning roller brush 112 that rotates at the same time can clean the soil at the pit of the potato agricultural products, and the soil produced by cleaning is under the impact of the water ejected from the nozzle. It naturally enters the rough washing box to make the water reuse. Because the fine washing adopts the mode that the cleaning roller brush 112 cooperates with the nozzle, the skin of the potato agricultural products will not be damaged during the fine washing. After cleaning, the potato agricultural products Enter the draining box 200 for draining. When the potato agricultural products are drained, under the action of the air blowing component 203, the residual water and a small amount of soil on the surface of the potato agricultural products can be removed, and the potato agricultural products are further purified. After the potato agricultural products are drained After the box body 200 is drained, it enters the drying box body 300 for drying. What is used for drying is that the potato agricultural products move slowly on the feeding plate 303, and the heat outlet pipe 304 arranged on the lower surface of the feeding plate 303 releases heat, so that the potato agricultural products Drying at a temperature of 30°C-35°C has a good drying effect. When the potato agricultural products enter the intersection of the upper and lower two feeding plates 303, the steering wheel 307 is used to change the direction, which can further avoid the rigid collision of the potato agricultural products, and further Effective protection of potato agricultural products.

To sum up, the washing and draining device for potato agricultural products provided by this embodiment has high cleaning efficiency, and is not easy to damage the epidermis of potato crops during cleaning.

The above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced. Without departing from the purpose and scope of the technical solutions of the present invention, all of them should be included in the scope of the claims of the present invention. The technologies, shapes and construction parts not described in detail in the present invention are all known technologies.

Claims (6)

1. A washing and draining device for potato agricultural products is characterized by comprising a washing unit (1), a draining unit (2) and a drying unit (3);

the cleaning unit (1) comprises a rough cleaning component and a fine cleaning component, the rough cleaning component comprises a rough cleaning box (100), the rough cleaning box (100) is provided with a water inlet (101) and a water outlet (102), a micro-vibration filter screen is obliquely arranged in the rough cleaning box (100), a rough cleaning space is formed above the micro-vibration filter screen, a precipitation space is formed below the micro-vibration filter screen, a feed inlet (104) for feeding potato agricultural products into the rough cleaning space is formed in the position, close to a high point of the micro-vibration filter screen, of the top of the rough cleaning box (100), a first discharge port (105) is formed in the position, on the side wall of the rough cleaning space, of the low point of the micro-vibration filter screen, and a first material conveying spiral rod (106) for conveying materials to the first discharge port (105) is installed at the low point of the micro-vibration filter screen;

the micro-vibration filter screen comprises a micro-vibration upper filter screen (103 a), a micro-vibration lower filter screen (103 c) and expansion pieces (103 b) which are uniformly distributed and connected with the micro-vibration upper filter screen (103 a) and the micro-vibration lower filter screen (103 c), and the single aperture of the micro-vibration upper filter screen (103 a) is larger than that of the micro-vibration lower filter screen (103 c);

the rough washing assembly further comprises a first driving device for driving the micro-vibration filter screen to slightly move up and down, the first driving device comprises a first motor (130), a shell (131), a vertical plate (132), a crank (133), a sliding seat (134) and a lifting rod (135), the shell (131) is fixedly arranged on the upper portion of a top plate of the rough washing box (100), the vertical plate (132) is vertically arranged in the shell (131), the first motor (130) is fixedly arranged on the vertical plate (132), one end of the crank (133) is fixedly arranged on an output shaft of the first motor (130), the other end of the crank (133) is hinged to the upper end of the lifting rod (135), the sliding seat (134) is fixedly arranged at the bottom of the vertical plate (132), and the lower end of the lifting rod (135) is slidably arranged on the sliding seat (134) and the top plate of the rough washing box (100) in a penetrating mode and is connected with the center of the micro-vibration filter screen (103 a);

the rough washing assembly further comprises an aeration mechanism, the aeration mechanism comprises an aerator positioned at the upper part of the rough washing box (100) and a plurality of aeration pipes (121) extending into the rough washing space and communicated with air outlet holes of the aerator, and aeration holes (122) are uniformly distributed on the side wall of each aeration pipe (121);

the fine washing assembly comprises first conveying pipes (110) which correspond to the first discharge ports (105) one by one and are obliquely arranged, the lower end of each first conveying pipe (110) is correspondingly communicated with one first discharge port (105), a second conveying spiral rod (111) is arranged at the center in each first conveying pipe (110), a plurality of washing rolling brushes (112) are arranged in each first conveying pipe (110) around the corresponding second conveying spiral rod (111), an opening is formed in the upper side wall of the upper end of each first conveying pipe (110), a spray head (113) for spraying water into each first conveying pipe (110) is arranged at each opening, and a discharge port (114) is formed in the lower side wall of the upper end of each first conveying pipe (110);

the second material conveying screw rod (111) and the plurality of cleaning rolling brushes (112) are driven by a second driving device, the second driving device comprises a second motor (140), a driving gear (141) and a driven gear (142), the second motor (140) is fixedly arranged on an upward extension line of the first material conveying pipe (110), the driving gear (141) is arranged on an output shaft of the second motor (140), the driving gear (141) is coaxially and fixedly connected with a shaft part of the second material conveying screw rod (111), the shaft end part of each cleaning rolling brush (112) is provided with the driven gear (142), the driven gear (142) is meshed with the driving gear (141) for transmission, and the second motor (140) drives the second material conveying screw rod (111) and the cleaning rolling brushes (112) to rotate simultaneously;

the draining unit (2) comprises a draining box body (200), a draining net (201) is obliquely arranged in the draining box body (200), a draining space is formed above the draining net (201), a temporary storage space is formed at the lower part of the draining net (201), a draining pipe (205) communicated with the temporary storage space is arranged at the bottom of the temporary storage space, the tail end of the draining pipe (205) extends into the rough washing space, a second feeding hole (202) connected with a discharging hole (114) is formed in the upper part of the draining box body (200) and close to the high point of the draining net (201), an air blowing assembly (203) is arranged above the draining space, the air blowing assembly (203) is used for conveying air to the draining space, and a second discharging hole (204) is formed in the side wall of the draining space and at the lower point of the draining net (201);

drying unit (3) are including drying box (300), drying box (300) have third feed inlet (301) and third discharge gate (302), second conveying pipeline (309) and second discharge gate (204) intercommunication that third feed inlet (301) set up through the slope, third discharge gate (302) are used for outwards carrying abluent and dry potato class agricultural product.

2. A washing and draining device for potato agricultural products as claimed in claim 1, wherein the micro-vibration sieve is at an angle of 1-2 ° to the horizontal plane.

3. A washing and draining device for potato agricultural products according to claim 2, wherein the micro-vibration upper screen (103 a) and the micro-vibration lower screen (103 c) are both metal meshes.

4. The washing and draining device for potato agricultural products as claimed in claim 1, wherein a material separating plate (107) is disposed outside the first material conveying screw rod (106), and an upper and a lower single-row material passing channel is formed between the material separating plate (107) and the micro-vibration sieve.

5. The washing and draining device for potato agricultural products as claimed in claim 1, wherein a plurality of material passing plates (303) are obliquely and alternately arranged in the drying box body (300), a gap formed between the tail end of the material passing plate (303) positioned at the upper part and the beginning end of the material passing plate (303) positioned at the lower part can pass through a single row of potato agricultural products with larger particle size, a heat outlet pipe (304) is arranged on the lower surface of the beginning end of the material passing plate (303), the heat outlet pipe (304) is provided with an air outlet for releasing heat air below the material passing plate (303), a fan (305) and a heater (306) are arranged outside the drying box body (300), an air outlet pipe of the fan (305) is communicated with the heat outlet pipe (304), and the heater (306) is arranged on an air outlet pipe of the fan (305).

6. The washing and draining device for potato agricultural products as claimed in claim 5, wherein a steering wheel (307) is arranged at the intersection of two adjacent material passing plates (303), a plurality of material distributing plates (308) are uniformly arranged on the circumferential surface of the steering wheel (307), and anti-scratch pads are arranged on the drying box body (300) corresponding to the material distributing plates (308).

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