阅读说明：本技术 一种多级连续式花生干燥设备与方法 (Multistage continuous peanut drying equipment and method ) 是由 张宗超 孙庆运 李青 赵峰 武文璇 贾振超 韩梦龙 孙立刚 王斌 陈宁 于 2021-08-27 设计创作，主要内容包括：本发明公开了一种多级连续式花生干燥设备与方法,其技术方案为：包括依次设置的针破预处理单元、高温干燥单元、缓苏单元和低温干燥单元；其中,所述针破预处理单元包括第一输送机、设于第一输送机上方的至少两个针破轮；所述高温干燥单元、缓苏单元和低温干燥单元均包括多个从上至下错位布置的第二输送机；所述低温干燥单元连接高温低湿热源装置,高温干燥单元的高温废气出口与高温低湿热源装置的换热器连接。本发明解决了花生干燥过程干燥时间长、生产率低、能耗高的问题,实现了花生连续式干燥加工。(The invention discloses a multistage continuous peanut drying device and a method, and the technical scheme is as follows: comprises a needle breaking pretreatment unit, a high-temperature drying unit, a tempering unit and a low-temperature drying unit which are arranged in sequence; the needle breaking pretreatment unit comprises a first conveyor and at least two needle breaking wheels arranged above the first conveyor; the high-temperature drying unit, the tempering unit and the low-temperature drying unit respectively comprise a plurality of second conveyors which are arranged from top to bottom in a staggered manner; the low-temperature drying unit is connected with the high-temperature low-humidity heat source device, and a high-temperature waste gas outlet of the high-temperature drying unit is connected with a heat exchanger of the high-temperature low-humidity heat source device. The invention solves the problems of long drying time, low production rate and high energy consumption in the peanut drying process, and realizes continuous peanut drying processing.)

1. A multi-stage continuous peanut drying device is characterized by comprising a needle breaking pretreatment unit, a high-temperature drying unit, a tempering unit and a low-temperature drying unit which are sequentially arranged;

the needle breaking pretreatment unit comprises a first conveyor and at least two needle breaking wheels arranged above the first conveyor, and a gap between each needle breaking wheel and the first conveyor is adjustable; the high-temperature drying unit, the tempering unit and the low-temperature drying unit respectively comprise a plurality of second conveyors which are arranged from top to bottom in a staggered manner;

the low-temperature drying unit is connected with the high-temperature low-humidity heat source device, and a high-temperature waste gas outlet of the high-temperature drying unit is connected with a heat exchanger of the high-temperature low-humidity heat source device.

2. The multi-stage continuous peanut drying apparatus of claim 1, wherein the pin crusher wheels are connected to the same power source for synchronous movement; and a vibration wheel is arranged in the first conveyor and can enable the first conveyor to vibrate periodically.

3. The multi-stage continuous peanut drying apparatus of claim 2, wherein the vibratory wheel is a disk cam and is coupled to a source of rotational power.

4. The multi-stage continuous peanut drying apparatus of claim 1, wherein the high temperature drying unit, tempering unit, and low temperature drying unit have opposite directions of movement of adjacent second conveyors.

5. The multi-stage continuous peanut drying apparatus of claim 1 or 4, wherein the second conveyor has a feed deflector at one end, and the feed deflectors of adjacent second conveyors are located at different ends; and a discharge guide plate is arranged at the mounting end of the second conveyor positioned at the lowest position, which is far away from the feeding guide plate.

6. The multi-stage continuous peanut drying equipment of claim 1, wherein the top of the high-temperature drying unit, the top of the tempering unit and the top of the low-temperature drying unit are all provided with a feeding port, and the bottom of the high-temperature drying unit, the tempering unit and the low-temperature drying unit are all provided with an air equalizing plate; the air-equalizing plate is a porous plate.

7. The multi-stage continuous peanut drying equipment as claimed in claim 1, wherein the high-temperature low-humidity heat source device comprises an evaporator, a condenser and a heat exchanger which are connected in sequence, the evaporator is used for cooling and condensing normal-temperature air, and the heat exchanger can exchange heat with high-temperature waste gas to generate normal-temperature low-humidity air; the condenser can generate high-temperature low-humidity air through heat exchange.

8. The multi-stage continuous peanut drying apparatus of claim 1, wherein the air inlet of the high temperature drying unit is connected to the second fan via a heating device.

9. The multi-stage continuous peanut drying apparatus of claim 1, wherein an inclined feeding conveyor is provided between adjacent ones of the pin-breaking pretreatment unit, the high temperature drying unit, the tempering unit and the low temperature drying unit.

10. A multi-stage continuous peanut drying process, characterized in that the drying apparatus of any one of claims 1 to 9 is used, comprising:

the peanuts enter a pin-breaking pretreatment unit, and pin holes are formed in the surfaces of peanut shells through pin-breaking wheels;

the shelled peanuts enter a high-temperature drying unit, the thickness of a material layer is less than or equal to 400mm, the temperature of hot air is 60-70 ℃, and the peanuts sequentially pass through second conveyors of the high-temperature drying unit to turn over the material layer of the peanuts;

the turned peanuts enter a tempering unit, and are slowly cooled by a multilayer second conveyor in the tempering unit, the humidity is lower than 50%, and the moisture gradient and the temperature gradient of each part of the peanuts are reduced within 8 ℃ when the temperature is higher than the room temperature;

and then, the peanuts enter a low-temperature drying unit, the temperature is 35-50 ℃, the humidity is lower than 30%, and the peanuts are discharged through the discharge of the low-temperature drying unit after being turned over by a multi-layer second conveyor of the low-temperature drying unit.

Technical Field

The invention relates to the technical field of peanut drying, in particular to multistage continuous peanut drying equipment and method.

Background

The moisture content of the harvested peanuts is high, usually 40% -50%, and the peanuts need to be dried immediately, so that quality reduction and loss caused by heat, mildew, rancidity and the like are reduced. At present, peanut drying is mainly performed by field airing, the drying time is long, the quality loss is large due to long-term direct sunlight, and the peanuts are easy to mildew due to the influence of weather change. Therefore, the mechanical drying processing of the peanuts is a key problem which needs to be solved urgently.

The inventor finds that most of the existing peanut drying equipment is batch-type and low-temperature drying, has the characteristics of long drying time and low production rate, is difficult to meet the requirements of peanut post-production drying mechanical processing, and has less application.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide multi-stage continuous peanut drying equipment and method, solves the problems of long drying time, low productivity and high energy consumption in the peanut drying process, and realizes continuous peanut drying processing.

In order to achieve the purpose, the invention is realized by the following technical scheme:

in a first aspect, an embodiment of the present invention provides a multistage continuous peanut drying apparatus, including a needle breaking pretreatment unit, a high temperature drying unit, a tempering unit and a low temperature drying unit, which are sequentially arranged;

the needle breaking pretreatment unit comprises a first conveyor and at least two needle breaking wheels arranged above the first conveyor; the high-temperature drying unit, the tempering unit and the low-temperature drying unit respectively comprise a plurality of second conveyors which are arranged from top to bottom in a staggered manner;

the low-temperature drying unit is connected with the high-temperature low-humidity heat source device, and a high-temperature waste gas outlet of the high-temperature drying unit is connected with a heat exchanger of the high-temperature low-humidity heat source device.

As a further implementation, the needle breaking wheels are connected with the same power source to move synchronously; and a vibration wheel is arranged in the first conveyor and can enable the first conveyor to vibrate periodically.

As a further implementation manner, the vibration wheel is a disk-shaped cam, and the vibration wheel is connected with a rotary power source.

In a further implementation manner, in the high-temperature drying unit, the tempering unit and the low-temperature drying unit, the moving directions of the adjacent second conveyors are opposite.

As a further implementation manner, a feeding guide plate is arranged at one end of the second conveyor, and feeding guide plates of adjacent second conveyors are positioned at different ends; and a discharge guide plate is arranged at the mounting end of the second conveyor positioned at the lowest position, which is far away from the feeding guide plate.

As a further implementation mode, the top parts of the high-temperature drying unit, the tempering unit and the low-temperature drying unit are all provided with material inlet openings, and the bottom parts of the high-temperature drying unit, the tempering unit and the low-temperature drying unit are all provided with air equalizing plates; the air-equalizing plate is a porous plate.

As a further implementation manner, the high-temperature low-humidity heat source device comprises an evaporator, a condenser and a heat exchanger which are connected in sequence, wherein the evaporator is used for cooling and condensing normal-temperature air, and the heat exchanger can exchange heat with high-temperature waste gas to generate normal-temperature low-humidity air; the condenser can generate high-temperature low-humidity air through heat exchange.

As a further implementation manner, an air inlet of the high-temperature drying unit is connected with the second fan through a heating device.

As a further implementation mode, feeding conveyors which are obliquely arranged are arranged among the needle breaking pretreatment unit, the high-temperature drying unit, the tempering unit and the low-temperature drying unit.

In a second aspect, the embodiment of the present invention further provides a multi-stage continuous peanut drying method, which adopts the drying apparatus, including:

the peanuts enter a pin-breaking pretreatment unit, and pin holes are formed in the surfaces of peanut shells through pin-breaking wheels;

the shelled peanuts enter a high-temperature drying unit, the thickness of a material layer is less than or equal to 400mm, the temperature of hot air is 60-70 ℃, and the peanuts sequentially pass through second conveyors of the high-temperature drying unit to turn over the material layer of the peanuts;

the turned peanuts enter a tempering unit, and are slowly cooled by a multilayer second conveyor in the tempering unit, the humidity is lower than 50%, and the moisture gradient and the temperature gradient of each part of the peanuts are reduced within 8 ℃ when the temperature is higher than the room temperature;

and then, the peanuts enter a low-temperature drying unit, the temperature is 35-50 ℃, the humidity is lower than 30%, and the peanuts are discharged through the discharge of the low-temperature drying unit after being turned over by a multi-layer second conveyor of the low-temperature drying unit.

The invention has the following beneficial effects:

(1) according to the invention, the peanut shell can be uniformly subjected to shell breaking pretreatment by using the needle breaking pretreatment unit, and the heat transfer is effectively promoted and the migration rate of water in the peanut shell and the peanut kernel is increased by increasing the holes on the surface of the peanut shell.

(2) The peanut drying machine comprises a needle breaking pretreatment unit, a high-temperature drying unit, a tempering unit and a low-temperature drying unit which are sequentially arranged, the pretreatment, high-temperature drying, tempering, low-temperature drying and other processes are combined, and the materials are turned over by utilizing a multi-layer conveying belt, so that the uniformity and the drying rate of material drying are effectively improved, the quality of dried peanuts is improved, the continuous drying of the peanuts is realized, and the problem of insufficient processing mechanization rate of the postharvest drying of the peanuts is solved.

(3) The low-temperature drying unit is connected with the low-temperature heat source device, and the water potential difference between peanuts and hot air is increased, the drying speed is improved, the drying time and energy consumption are reduced, and the problems of low temperature and long drying time of the peanut drying hot air are solved by reducing the humidity of the heat source and utilizing waste heat recovery.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic block diagram of the present invention according to one or more embodiments;

FIG. 2 is a schematic diagram of a high temperature and low humidity heat source apparatus according to one or more embodiments of the present invention;

FIG. 3 is a schematic diagram of a needle break pretreatment unit configuration according to one or more embodiments of the present disclosure;

wherein, 1, a needle breaking pretreatment unit, 11, a material feeder, 12, a first conveyor, 13, a first needle breaking wheel, 131, fine needles, 14, a first driving motor, 15, a second driving motor, 16, a second needle breaking wheel, 17, a vibration wheel, 2, a high-temperature drying unit, 21, a first feeding conveyor, 22, a second fan, 23, a heating device, 24, a first air inlet, 25, a first air equalizing plate, 26, a discharging guide plate, 27, a first mesh belt conveyor, 28, a first material inlet, 29, a high-temperature waste gas outlet, 3, a tempering unit, 31, a second feeding conveyor, 32, a second material inlet, 33, a second mesh belt conveyor, 34, a second air equalizing plate, 35, a second air inlet, 36, a material outlet, 4, a low-temperature drying unit, 41, a third feeding conveyor, 42, a third material inlet, 43, a return air inlet, 44, a third mesh belt conveyor, 45, a first fan, 46. the high-temperature low-humidity heat source device comprises 47 parts of a third air inlet, 48 parts of a third air equalizing plate, 49 parts of a discharge guide plate and 5 parts of a discharge conveyor.

Detailed Description

The first embodiment is as follows:

the embodiment provides multistage continuous peanut drying equipment, as shown in fig. 1, which comprises a needle breaking pretreatment unit 1, a high-temperature drying unit 2, a tempering unit 3 and a low-temperature drying unit 4 which are sequentially arranged, wherein feeding conveyors which are obliquely arranged are arranged between every two adjacent units so as to realize the transfer of materials; the continuous drying processing of the peanuts is realized by controlling the working parameters of all the units.

Specifically, as shown in fig. 3, the needle breaking pretreatment unit 1 includes a first conveyor 12 and at least two needle breaking wheels, in this embodiment, the first conveyor 12 adopts a belt transmission mechanism, which is horizontally arranged; the first conveyor 12 is connected with a first driving motor 14, and the first conveyor 12 is driven by the first driving motor 14 to move so that the peanuts are conveyed from one end to the other end.

A feeder 11 is arranged above one end of the first conveyor 12, and peanuts are arranged on the first conveyor 12 through the feeder 11. In the present embodiment, the material feeder 11 adopts a cone-shaped funnel structure. The broken wheel of needle sets up a plurality ofly along the length direction interval of first conveyer 12, and this embodiment sets up two broken wheels of needle, and broken wheel 13 of first broken wheel of needle and the broken wheel 16 of second needle promptly realizes the broken preliminary treatment of two-stage needle through broken wheel 13 of first broken wheel of needle and the broken wheel 16 of second needle. Of course, in other embodiments, more than two needle breaking wheels may be provided.

Further, the first and second pin breaking wheels 13 and 16 are located at a set height position above the first conveyor 12, which height is adjustable. The first needle breaking wheel 13 and the second needle breaking wheel 16 are connected with a second driving motor 15 through a transmission mechanism, and synchronous motion of the two needle breaking wheels is realized under the action of the second driving motor 15.

The broken wheel of needle of this embodiment includes the rim plate and the thin needle 131 of evenly arranging along rim plate circumference, and the length less than or equal to peanut shell thickness of thin needle 131 is adjusted according to the peanut variety.

The conveyor belt of the first conveyor 12 is provided with a vibration wheel 17, and the vibration wheel 17 is positioned between the upper conveyor belt and the lower conveyor belt. The vibrating wheel 17 is a disk-shaped cam, and the disk-shaped cam is connected with a rotary power source (such as a motor), so that the conveying belt can vibrate periodically, and the peanuts can be uniformly laid and turned over.

The high temperature drying unit 2, the tempering unit 3 and the low temperature drying unit 4 of this embodiment all include a plurality of second conveyors arranged from top to bottom in a staggered manner, and in order to further distinguish the second conveyors of the respective units, the second conveyor of the high temperature drying unit 2 is the first mesh belt conveyor 27, the second conveyor of the tempering unit 3 is the second mesh belt conveyor 33, and the second conveyor of the low temperature drying unit 4 is the third mesh belt conveyor 44.

Specifically, the high-temperature drying unit 2 comprises a high-temperature bin, a heating device 23, a second fan 22 and a first mesh belt conveyor 27, wherein a high-temperature waste gas outlet 29 is formed in the top of the high-temperature bin, and high-temperature waste gas is discharged from the high-temperature waste gas outlet 29; the high-temperature waste gas outlet 29 is connected with a heat exchanger in the high-temperature low-humidity heat source device 46, and the high-temperature waste gas discharged after drying enters the heat exchanger through the high-temperature waste gas outlet 29 to exchange heat with low-temperature air, so that waste heat recovery is realized.

The peanut high-temperature drying device is characterized in that a first feeding port 28 is formed in one side of the high-temperature waste gas outlet 29, one end of the first feeding port 28 is connected with the high end of the first feeding conveyor 21, the low end of the first feeding conveyor 21 is located below the first conveyor 12, and peanuts are transferred from the needle breaking pretreatment unit 1 to the high-temperature drying unit 2 through the first feeding conveyor 21. In the present embodiment, the first feeding conveyor 21 may employ a belt transmission mechanism.

Further, a first air inlet 24 is arranged at the bottom of the high-temperature bin, and the first air inlet 24 is connected with a second fan 22 through a heating device 23; the heating device 23 can use electric energy, natural gas and the like, and the hot air temperature of the high-temperature bin is kept at 60-70 ℃ through the heating device 23.

The side surface of the high-temperature bin is provided with a discharge port at the lower position, the discharge port is connected with one end of a second feeding conveyor 31, and peanuts heated at high temperature are transferred to the tempering unit 3 through the second feeding conveyor 31.

Further, a plurality of first mesh belt conveyors 27 are arranged in the high-temperature bin at intervals from top to bottom, and the first mesh belt conveyors 27 are arranged in a staggered manner, that is, any first mesh belt conveyor 27 and the adjacent first mesh belt conveyor 27 are arranged at a certain staggered distance along the horizontal direction, and the positions of the first mesh belt conveyors 27 arranged at intervals (the first mesh belt conveyors 27 are arranged at intervals in the middle) correspond to each other.

The movement directions of the adjacent first mesh belt conveyors 27 are opposite, so that the peanuts are conveyed layer by layer from top to bottom; the heating time of the peanuts in the high-temperature bin is prolonged through the first mesh belt conveyor 27 arranged in a multi-layer mode, and the heating time is guaranteed.

Further, a feeding guide plate is arranged at one end of the first mesh belt conveyor 27, and the feeding guide plates of the adjacent first mesh belt conveyors 27 are positioned at different ends; because the motion directions of the adjacent first mesh belt conveyors 27 are opposite, the feeding guide plates are arranged at the feeding ends of the first mesh belt conveyors 27.

The feeding guide plate of the topmost first mesh belt conveyor 27 corresponds to one side below the first feeding port 28, so that the peanuts can smoothly enter the high-temperature bin from the first feeding conveyor 21. The discharge hole of the high-temperature bin is provided with a discharge guide plate 26, the discharge guide plate 26 corresponds to the discharge end of the first mesh belt conveyor 27 at the bottom, and peanuts smoothly enter the second feeding conveyor 31 through the discharge guide plate 26.

In this embodiment, the first mesh belt conveyor 27 is a stainless steel mesh belt, so that hot air can pass through the stainless steel mesh belt to heat the peanuts.

And a first air equalizing plate 25 is arranged on the upper side of the first air inlet 24, hot air enters the high-temperature bin through the first air equalizing plate 25, vertically passes through the stainless steel mesh belt and the material layer, moves upwards, and adopts a counter-current drying mode. The first air-equalizing plate 25 of the present embodiment is a porous plate, and the ratio of the plate thickness to the hole diameter is less than 1: 1.

further, tempering unit 3 is the transition device between high temperature drying unit 2 and low temperature drying unit 4, and it includes tempering storehouse, second guipure conveyer 33, and the top in tempering storehouse sets up second pan feeding mouth 32, and the bottom sets up second income wind gap 35, second income wind gap 35 passes through the return air inlet 43 of pipe connection low temperature drying unit 4, realizes the waste heat utilization of waste gas in low temperature drying unit 4.

The discharge end of the second feeding conveyor 31 corresponds to the second feeding port 32, and heated peanuts enter the tempering bin through the second feeding port 32; a plurality of second mesh belt conveyors 33 are arranged in the tempering bin from top to bottom, a feeding guide plate is arranged at the feeding end of the second mesh belt conveyor 33, the specific arrangement mode of the feeding guide plate is the same as that of the first mesh belt conveyor 27, and the description is omitted here.

The bottom of the tempering cabin is provided with a second air equalizing plate 34, and the structure of the second air equalizing plate 34 is the same as that of the first air equalizing plate 25, which is not described again here. A discharge hole 36 is formed in one side of the second air inlet 35, and the discharge hole 36 corresponds to the lower end of the third feeding conveyor 41.

Further, the low-temperature drying unit 4 comprises a low-temperature bin, the top of the low-temperature bin is provided with an air return opening 43, and one side of the air return opening 43 is provided with a third feeding opening 42; the third feeding port 42 corresponds to the high end of the third feeding conveyor 41. And a third air inlet 47 is formed in the bottom of the low-temperature bin, and the third air inlet 47 is connected with the first fan 45 through a high-temperature low-humidity heat source device 46.

The third mesh belt conveyor 44 which is arranged in a staggered mode is arranged in the low-temperature bin from top to bottom, a feeding guide plate is arranged at the feeding end of the third mesh belt conveyor 44, a discharging guide plate 49 is arranged at the discharging end of the third mesh belt conveyor 44 at the lowest position, and peanuts are discharged to the discharging conveyor 5 through the discharging guide plate 49.

The bottom of the low-temperature cabin is provided with a third air equalizing plate 48, the third air equalizing plate 48 has the same structure as the first air equalizing plate 25, the third mesh belt conveyor 44 has the same structure as the first mesh belt conveyor 27, and the length of the third mesh belt conveyor is twice that of the first mesh belt conveyor 27, which is not described again here.

Further, as shown in fig. 2, the high-temperature low-humidity heat source device 46 includes an evaporator, a condenser and a heat exchanger which are connected in sequence, and a compressor is connected between an output end of the evaporator and an input end of the condenser, and a throttle valve is installed between an output end of the condenser and an input end of the evaporator.

The output end of the condenser is connected with a third air inlet 47 of the low-temperature drying unit 4, and the input end of the evaporator is connected with the first fan 45. Cooling and condensing the normal temperature air in an evaporator to remove moisture in the air; then the waste gas enters a heat exchanger to exchange heat with high-temperature waste gas to generate normal-temperature low-humidity air; and then the hot air enters a condenser, high-temperature and low-humidity air is generated through heat exchange, the temperature of the hot air is about 40 ℃, the humidity is lower than 20%, and the energy efficiency ratio is larger than 3.

Example two:

the embodiment provides a multistage continuous peanut drying method, which adopts the drying equipment of the embodiment I and comprises the following steps:

and (3) airing the harvested peanuts in the field until the moisture content is below 25%, starting to remove the peanuts, and then drying and processing the peanuts by using peanut drying equipment. Firstly, peanuts are fed into a needle breaking pretreatment unit 1 through a feeding device 11, conveyed by a first conveyor 12, uniformly laid on a conveying belt in a single layer mode under the action of a vibration wheel 17, and irregular needle holes are formed in the surfaces of peanut shells under the action of a first needle breaking wheel 13 and a second needle breaking wheel 16.

Then, the peanuts enter the high-temperature drying unit 2 through the first feeding conveyor 21, the peanuts are uniformly laid on the first mesh belt conveyor 27, the thickness of the material layer is smaller than or equal to 400mm, the temperature of hot air at the first air inlet 24 is 60-70 ℃, the peanuts move along with the first mesh belt conveyor 27 and sequentially pass through the conveyors of all the layers, the turning of the peanut material layer is realized, meanwhile, the hot air penetrates through the material layer from bottom to top, and the moisture content of the peanuts is rapidly reduced. Meanwhile, the high-temperature waste gas outlet 29 is connected with a heat exchanger in the high-temperature low-humidity heat source device 46, and high-temperature waste gas discharged after drying enters the heat exchanger through the high-temperature waste gas outlet 29 to exchange heat with low-temperature air so as to recover waste heat.

Then, the peanuts enter the tempering unit 3 through a second feeding conveyor 31, and the thickness of the material layer of a second mesh belt conveyor 33 is not more than 400 mm; the second air inlet 35 is connected with the air return inlet 43, low-temperature waste gas in the low-temperature drying unit 4 enters through the second air inlet 35, the temperature of hot air is lower than 30 ℃, the humidity is lower than 50%, the peanuts start to be slowly cooled, the internal moisture gradient is reduced, moisture migrates outwards, and meanwhile, the peanuts sequentially pass through the conveyors on all layers.

Then the peanuts enter the low-temperature drying unit 4, hot air at the third air inlet 47 is generated by a high-temperature low-humidity heat source device 46, the temperature is 40 ℃, the humidity is lower than 20%, the water potential difference between the peanuts and the low-humidity hot air is improved, and the drying speed is improved.

The hot air passes through the material layer from bottom to top, the thickness of the material layer on the third mesh belt conveyor 44 is 1/2 of the first mesh belt conveyor 27, the peanuts are turned over between the conveyor belts, the moisture content of the peanuts at the discharging guide plate 49 is lower than 10%, and the peanuts are conveyed by the discharging conveyor 5 after being discharged. The continuous drying processing of the peanuts is completed, the drying rate of the peanuts is improved, and the quality of the dried peanuts is improved.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.