KR101314156B1 - System for drying agriculture products and method thereof - Google Patents

Abstract

PURPOSE: An agricultural product drying system and a method thereof are provided to process grains, vegetables and fruits into dried food. CONSTITUTION: A hopper (110) is for inserting and storing more than two agricultural products selected from grains, vegetables, and fruits. A trimming conveyor (120) transfers the agricultural products supplied from the hopper to a washing tank (130). The washing tank washes and rinses the agricultural products by spraying water and generating bubbles. More than one drying rack (140) is for hanging the rinsed agricultural products and naturally dehydrating. A heat-processing chamber (150) cooks the agricultural products using steam. A drying chamber dries the agricultural products into the water content of 15-25%. A dehumidifier (170) dehumidifies water containing moisture. [Reference numerals] (110) Hopper; (120) Trimming conveyor; (130) Washing tank; (140) Drying rack; (150) Heat-processing; (160) Drying room; (170) Dehumidifier; (AA) Air including moisture; (BB) Dry air

Description

System for drying agriculture products and method

The present invention relates to agricultural product drying technology, and more particularly to a agricultural product drying system and method for processing agricultural products such as cereals, vegetables, fruits and the like as dry food.

Dried food is a natural food, such as cereals, vegetables, fruits, meat, fish, seaweeds, etc., perishable by sunlight or wind, hot air drying, vacuum drying, microwave drying. Food is dried using various drying methods such as freeze drying, pressure drying, etc., and it is light in weight, small in volume, easy to transport and long-term storage is possible.

On the other hand, dried foods (eg, radish, cabbage or cabbage dense) made by drying agricultural products such as cereals, vegetables, fruits, etc. among dried foods, dried radish, radish, eggplant dried, pumpkin high, dried mushrooms, dried Peppers, dried bananas, raisins, dried corn, dried beans, dried chestnuts, etc.) are mainly produced by farmers and supplied to consumers.In recent years, the demand for dried foods for agricultural products is increasing. There is a need for technology for stable and mass production.

KR 10-1212475 B1

Accordingly, the present inventors have developed a agricultural product drying system and method for processing agricultural products such as cereals, vegetables, fruits, etc., among various kinds of dry foods, as dry foods.

An object of the present invention is the air containing the moisture in the drying chamber for a predetermined time in a state in which dry agricultural products such as cereals, vegetables, fruits, etc. are put in a drying chamber maintaining a temperature condition of (40 ± 5) ℃ After discharging the air to the dehumidifier outside the drying chamber via the ventilation pipe, the dehumidifying and ventilating operation of supplying the dry air dehumidified by the dehumidifier to the inside of the drying room via another ventilation pipe is performed to obtain the drying agricultural product (20). It is to provide a agricultural product drying system and method for drying the dried food having a moisture content of ± 5)% to process the dried food.

Another object of the present invention is to produce a drying system and method for producing the agricultural product by heat treatment with steam of (110 ± 15) ℃ for a predetermined time in a state in which the drying agricultural product is put into a heating chamber (blanching chamber) before the input into the drying chamber To provide.

In order to achieve the object of the present invention as described above, the agricultural product drying system according to the present invention, a hopper to which any one or two or more of the agricultural products for drying or input of grains, vegetables, fruits; Trimming conveyor for transporting the dry agricultural products supplied from the hopper to the washing tank so that the workers located in the vicinity can be trimmed while removing foreign matters of the dry agricultural products; A washing tank accommodating the dried agricultural products which have been removed and trimmed, and washing and rinsing the dried agricultural products in parallel with water injection and bubble generation; At least one dehydration zone for natural dehydration by hanging or hanging rinsed dry produce; A heat treatment chamber in which the dried agricultural product is cooked by heat-treating the dried agricultural product with a steam at a predetermined temperature for a predetermined time in a state in which at least one dehydrating zone in which the dried agricultural product is suspended or suspended is put into the interior; By maintaining the temperature condition of (40 ± 5) ℃, and the inside of the moisture-containing air for a predetermined time with at least one or more dehydration zone hanging or hanging heat-treated dry agricultural product through the exhaust vent pipe After the discharge to the external dehumidifier to perform the dehumidification and ventilation operation to be supplied back to the interior through the air supply ventilated dry air dehumidified by the dehumidifier to have a moisture content of (20 ± 5)% A drying chamber which is dried and processed into dried foods; And installed outside the drying chamber, dehumidifying the air containing moisture in the drying chamber, regenerating the dry air, and then supplying the dried air to the drying chamber, and transferring moisture generated during the dehumidification treatment to the outside of the drying chamber. It characterized by consisting of; a dehumidifier to emit.

The method for drying agricultural products according to the present invention includes a first step of adding and storing any one or two or more dry agricultural products from grains, vegetables, and fruits to a hopper; A method of transporting the dry produce supplied from the hopper to the washing tank through the trimming conveyor so that workers located near the trimming conveyor can trim the foreign matter of the dry produce while performing the trimming operation. 2 courses; A third process of removing the foreign matter by the second process and putting the finished dry agricultural products into the washing tank, and then washing and rinsing the dried agricultural products in parallel with water injection and bubble generation; A fourth step of naturally dehydrating the dried agricultural product rinsed by the third step by hanging or hanging the at least one dehydration zone; A fifth process of heat-treating the dried agricultural product with steam of a predetermined temperature for a predetermined time in a state in which at least one dehydrating zone in which the dried agricultural product dehydrated or suspended or suspended is put in a heat treatment chamber; And at least one dehydrating zone in which the dry agricultural product, which has been heat-treated in the fifth process, is suspended or suspended, and the air containing moisture therein for a predetermined time in a drying chamber maintained at a temperature of 40 ± 5 ° C. After discharging to the external dehumidifier via the exhaust vent pipe, the dehumidified and ventilated operation of re-supplying the dry air dehumidified by the dehumidifier to the inside via the air supply vent pipe is performed (20 ± 5). Characterized in that consisting of; sixth process of drying to have a moisture content of% to process into a dried food.

The present invention can be heat-treated and dried by drying or hanging a large number of dry produce in a drying chamber in a drying room, so that the supply of dry food in response to the increasing demand of dry food products without being influenced by external climate conditions It has the advantage of stable and mass production. Especially, the air containing moisture inside is discharged to the external dehumidifier while maintaining the low temperature condition of (40 ± 5) ℃, and the dry air dehumidified by the dehumidifier is used. By controlling the drying time in the drying chamber for dehumidifying and ventilating operation to be resupplied to the inside, there is an advantage that it can mass-produce high quality dry foods with the required water content as a property.

1 is an embodiment showing the configuration of a agricultural product drying system according to the present invention.
FIG. 2 is a sectional front view of the drying chamber shown in FIG. 1. FIG.
3 is a side cross-sectional view of the drying chamber shown in FIG. 1.
Figure 4 is a flow chart illustrating a method for drying agricultural products according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3, the hopper 110 is stored in any one or two or more dry agricultural products of grains, vegetables, fruits.

The trimming conveyor 120 transfers the dry agricultural products supplied from the hopper 110 to the washing tank 130 so that workers located at the periphery can trim and remove foreign substances of the dry agricultural products.

The washing tank 130 accommodates the dry agricultural products which have been removed and trimmed, and washes and rinses the dry agricultural products in parallel with water injection and bubble generation.

The washing and rinsing treatment of the washing tank 130 may be performed in the order of the first washing, the second washing, and the third rinsing, and the number of washings may be increased or decreased, if necessary.

The dehydration stand 140 is naturally dehydrated by hanging or hanging rinsed dry produce. In the present invention, at least one or more is preferably used to dehydrate a large amount of dry produce to produce a large amount of dried food.

The dehydration zone 140 is used for dehydration of dry produce, but is used for heat treatment of the dehydrated dry produce in the heat treatment chamber 150 below, and drying of the dry produce heat treatment in the following drying chamber 160. It is also a multi-purpose dehydration zone that is also used for, and the wheel is attached to the lower portion can be moved by the operator.

The dehydration stand 140 may be a hook type dehydration stand including a plurality of hooks for hanging the dry produce, or a tray-type dehydration stand including a plurality of trays for spreading and spreading the dry produce. It is desirable to.

In Figures 2 and 3 illustrates a hanging type dehydration rack hanging on the base, such a hanging type dehydrating stand is not limited to the shape or structure if it includes a rack to hang the agricultural products for drying A person skilled in the art can easily implement variously.

Although not shown, the above-mentioned drainage dehydration table includes a tray (for example, a net or metal net) and a tray fixing device (for example, a tray support shelf, a tray hanger, etc.) to which the agricultural products can be laid out. The shape and structure are not limited and may be variously implemented at a level easily implemented by those skilled in the art.

The heat treatment chamber 150 is cooked by heat-treating the agricultural produce with a steam at a predetermined temperature for a predetermined time in a state in which at least one dehydrating stand 140 in which the dried produce is hung or suspended.

The heat treatment chamber generates steam by a steam boiler, and in the present invention, the dried agricultural products are cooked with steam at a predetermined temperature for a predetermined time based on the weight and specific heat of the dried agricultural products such as cereals, vegetables, and fruits.

For example, 80kg of dried radish prepared to make radish-free siraegi can be cooked by heat-treating with steam at 110 ° C. for 25 minutes.

The drying chamber 160 may mass-produce dry foods having the required water content as a property when drying the agricultural products for drying by adjusting the drying time while maintaining the inside at an appropriate temperature.

For example, in the case of processing dry agricultural products such as cereals, vegetables, fruits, etc. as dried foods, if the moisture content is set to less than 5% to prevent corruption, the dried foods of the agricultural products (e.g., radish, cabbage or Chinese cabbage Dried sire, dried radish, eggplant dried, pumpkin highland, dried mushrooms, dried peppers, dried bananas, raisins, dried corn, dried beans, dried chestnuts, etc. can easily be broken and devalued.

For this reason, in the present invention, the internal temperature conditions and drying conditions of the drying chamber 160 in order to enable mass production while preventing agricultural products such as grains, vegetables, fruits, etc. from being easily broken during drying or storage of the agricultural products. As a result of repeating the test to measure the moisture content change by adjusting the drying time for each agricultural product, it was found and adopted the temperature condition and moisture content which can be applied as the average value for grains, vegetables and fruits.

The drying chamber maintains a temperature condition of (40 ± 5) ℃, the air containing moisture therein for a predetermined time in a state in which at least one dehydration zone 140, hanging or hanging the heat-treated drying agricultural product is put therein Dehumidifying and ventilating the exhaust air to the external dehumidifier 170 via the exhaust vent pipe 161 and then re-supplied dry air dehumidified by the dehumidifier 170 to the inside via the air supply vent pipe 162. In operation, the dried agricultural product is dried to have a water content of (20 ± 5)% and processed into dried food.

2 and 3, the exhaust chamber 161 and the air supply air duct 162 are spaced apart from each other in the ceiling C1 to penetrate to the outside, respectively. And a ventilation / circulation pipe line 163 which ventilates and circulates air in the drying chamber 160 while communicating with the exhaust air duct 161 and the air supply air duct 162 under the ceiling C1. A double ceiling C2 is formed, and at least one ventilation / circulation fan 164 is installed in the ventilation / circulation duct 163 between the ceiling C1 and the double ceiling C2.

The drying chamber 160 includes a thermostat 165 for maintaining the interior at a temperature condition of (40 ± 5) ° C., the thermostat 165 having an appropriate location within the drying chamber 160, preferably the ventilation / It is preferable to install and use the rear end of at least one ventilation / circulation fan 164 installed in the circulation conduit 163.

The thermostat 165 is dehumidified by the dehumidifier 170 and then the air supplied to the drying chamber 160 as well as the air circulating through the ventilation / circulation duct 163 inside the drying chamber 160. The temperature is maintained at a predetermined temperature <for example, (40 ± 5) ℃>, and if the temperature of the drying chamber 160 is less than the predetermined temperature, the heating operation to increase the temperature of the air, if the temperature is above the predetermined temperature to operate the air Lower the temperature.

When the interior of the drying chamber 160 is dried to have a water content of (20 ± 5)% by adjusting the drying time for each agricultural product for drying in the state maintained at a temperature condition of (40 ± 5) ° C., a large amount without being easily broken Produce dry foods that can be produced.

When the agricultural product dried food produced in the drying chamber 160 is vacuum packed with a vacuum packaging machine can be stored or distributed by further extending the storage period or distribution period.

The dehumidifier 170 is installed outside the drying chamber 160, dehumidifies the air containing moisture in the drying chamber 160, regenerates the dry air, and then supplies the dry air to the drying chamber 160. In addition, the moisture generated during the dehumidification process is released to the outside of the dehumidifier 170 to prevent the moisture generated during the dehumidification process into the drying chamber 160.

The dehumidifier 170 absorbs moisture into the desiccant while the air containing the moisture passes through the dehumidifying rotor including the desiccant, and heats the dehumidifying rotor with a heater to evaporate moisture to release the dehumidified dry air to the outside. In addition, the evaporated moisture is condensed through a heat exchanger (for example, a cooler located at the front or the rear end of the dehumidification rotor) to form a condensed water to discharge to the outside, it is preferable to use a dry dehumidifier If not, it will be easily understood by those skilled in the art, and may be manufactured in various shapes and structures and installed outside the drying chamber 160.

The agricultural product drying system 100 according to the present invention configured as described above operates as follows according to the agricultural product drying method shown in FIG. 4.

Referring to FIG. 4, first of all, the hopper 110 stores these when the worker inputs any one or two or more dry produce products of cereals, vegetables, and fruits (S110).

Subsequently, the hopper 110 cleans the agricultural products for drying through the trimming conveyor 120 so that workers can trim and remove foreign substances of the dry agricultural products in the state of being positioned around the trimming conveyor 120. 130) (S120).

When the foreign matter is removed and trimmed dry agricultural products as described above is put into the washing tank 130, the washing tank 130 to wash and rinse the dry agricultural products in parallel with the water injection and bubble generation (S130).

Subsequently, if the drying product rinsed by the worker is caught or spread over at least one or more dehydration zone 140, the at least one dehydration zone 140 naturally dehydrates the drying product.

In this case, the worker may use a squeezing-type dehydration stand including a plurality of stools for hanging the dry produce, or a riparian dewatering stand including a plurality of rakes for spreading the dry produce. The dehydration time can be suitably determined according to the water content of the dried agricultural product rinsed.

Subsequently, when at least one dehydration table 140 in which the dehydrated dry agricultural product is hung or suspended is introduced into the heat treatment chamber 150 by an operator, the heat treatment chamber 150 is based on the weight and specific heat of the dry agricultural product. It heats the dried agricultural products with a steam at a predetermined temperature for a predetermined time so as to be cooked (S150).

Subsequently, when at least one dehydration table 140 in which the dried agricultural product is hanged or suspended is introduced into the drying chamber 160 by an operator, the drying chamber 160 operates the thermostat 165 to operate the dehumidifier ( 170 is maintained while maintaining the temperature condition of (40 ± 5) ° C. by cooling or heating the dry air re-supplied to the drying chamber 160 after being regenerated by 170) and the air circulating in the drying chamber 160. After the air containing the internal moisture is discharged to the external dehumidifier 170 through the exhaust vent pipe 161 for a time, the dry air dehumidified by the dehumidifier 170 passes through the air supply vent pipe 162. By dehumidifying and ventilating operation to be resupplied to the inside by drying the dried agricultural products to have a water content of (20 ± 5)% to process the dried food (S160).

At this time, the dehumidifier 170 installed outside the drying chamber 160 receives the air containing moisture in the drying chamber 160 through the exhaust vent pipe 161, and then heats it with a heater therein. After evaporation and dehumidification to regenerate dry air, the dry air is supplied to the drying chamber 160 again, and the moisture generated during the dehumidification process is discharged to the outside of the dehumidifier 170 to dehumidify the inside of the drying chamber 160. Prevent moisture from entering

In addition, at least one ventilation / circulation fan 164 is operated in the drying chamber 160 to ventilate and circulate the internal air.

Ventilation / circulation path of the air in the drying chamber 160 is as shown by the arrow of Figure 2, as described above dried in a state in which the interior of the drying chamber 160 is maintained at a temperature condition of (40 ± 5) ℃ By adjusting the drying time for each agricultural product and drying it to have a water content of (20 ± 5)%, it is possible to produce high quality dried foods that can be mass-produced without being easily broken.

The agricultural product drying system and method thereof according to the present invention described above are not limited to the above embodiments, and those skilled in the art without departing from the gist of the present invention claimed in the following claims. Ramen has the technical spirit to the extent that anyone can make various changes.

100: agricultural product drying system 110: hopper
120: trimming conveyor 130: washing tank
140: dehydration zone 150: heat treatment chamber
160: drying chamber 161: exhaust ventilation
162: supply air intake 163: ventilation / circulation pipeline
164: ventilation / circulation fan 165: thermostat
170: dehumidifier C1: ceiling
C2: double ceiling

Claims (10)

A hopper 110 into which one or two or more dry agricultural products of grains, vegetables, and fruits are input and stored;
Trimming conveyor (120) for transporting the dry agricultural products supplied from the hopper 110 to the cleaning tank 130 so that workers located in the vicinity can be trimmed while removing foreign matters of the dry agricultural products;
A washing tank 130 for receiving the dried agricultural products which have been removed and trimmed and washing and rinsing the dried agricultural products in parallel with water injection and bubble generation;
At least one dehydration stage 140 to hang or hang the finished rinsed agricultural products to naturally dehydrate;
A heat treatment chamber 150 for heating and drying the dried produce with a predetermined temperature for a predetermined time in a state in which at least one dehydrating stand 140 in which the dried dehydrated finished product is hung or suspended is put inside;
Maintain the temperature condition of (40 ± 5) ℃, ventilate the air containing moisture for a predetermined time in the state that the at least one dehydration zone 140 hanging or hanging heat-treated dry agricultural product is put inside After the discharge to the external dehumidifier 170 via the pipe 161, the dehumidification and ventilation operation of re-supplied to the inside via the air supply vent pipe 162 to dry air dehumidified by the dehumidifier 170 A drying chamber 160 for drying the dried agricultural product to have a water content of (20 ± 5)% and processing the dried agricultural product into dried foods; And
Installed outside the drying chamber 160, the air containing moisture in the drying chamber 160 is dehumidified and regenerated as dry air, and the dry air is supplied back to the drying chamber 160, Dehumidifier 170 for discharging the generated moisture to the outside of the drying chamber 160;
Agricultural product drying system, characterized in that consisting of. 2. The agricultural product drying system according to claim 1, wherein the dehydration stand (140) is a stand type dehydration stand including a plurality of hangers capable of hanging the drying product. 2. The agricultural product drying system according to claim 1, wherein the dehydration zone (140) is a tray-type dehydration zone including a plurality of trays capable of spreading the drying agricultural products. The method of claim 1, wherein the drying chamber 160
The exhaust air duct 161 and the air supply air duct 162 are spaced apart from each other in the ceiling C1 and penetrate to the outside to be connected to the dehumidifier 170, and the exhaust air duct below the ceiling C1. A double ceiling C2 is formed to communicate with the air supply vent 162 and to form a ventilation / circulation duct 163 for ventilating and circulating air in the drying chamber 160, and the ceiling C1. At least one ventilation / circulation fan 164 is installed in the ventilation / circulation conduit (163) between the double ceiling (C2) and the agricultural product drying system. The method of claim 1, wherein the drying chamber 160 is heated or defrosted not only by air supplied to the drying chamber 160 after being dehumidified by the dehumidifier 170 but also by air circulating in the drying chamber 160. And a thermostat (165) for cooling and maintaining the interior at a temperature condition of (40 ± 5) ° C. A first step (S110) of inputting and storing any one or two or more dry agricultural products of cereals, vegetables, and fruits into the hopper 110;
Drying agricultural products supplied from the hopper 110 through the trimming conveyor 120 so that workers located around the trimming conveyor 120 can trim and remove foreign substances of the drying agricultural products. A second step S120 of transferring to the washing tank 130;
The third step (S130) of removing the foreign matter by the second process (S120) and putting the finished dry agricultural product into the washing tank 130, and then washing and rinsing the corresponding dry agricultural product in parallel with water injection and bubble generation. ;
A fourth step (S140) of naturally dehydrating by hanging or hanging the dried agricultural product rinsed by the third step (S130) on at least one or more dehydration zones (140);
(110 ± 15) ° C. for a predetermined time in a state in which at least one dehydration stage 140 in which the dry agricultural product dehydrated or suspended by the fourth process S140 is hung or suspended is put into a heating chamber 150. A fifth step (S150) of ripening the dried agricultural product by heat treatment with steam; And
In the fifth process (S150), at least one dehydration zone 140 in which the dried agricultural products which are heat-treated or hanged are put into a drying chamber 160 maintaining a temperature condition of 40 ± 5 ° C. After the air containing the moisture inside the discharged through the exhaust vent pipe 161 for a predetermined time to the external dehumidifier 170, the air dehumidified by the dehumidifier 170, the air supply vent pipe 162 A sixth process (S160) of drying the dried agricultural products to have a moisture content of (20 ± 5)% by processing the dehumidification and ventilation operations which are resupplied to the inside through the process (S160);
Agricultural product drying method comprising the. 7. The method of claim 6, wherein in the fourth step (S140), the dried agricultural product is naturally dehydrated by using a bench-type dehydration stand including a plurality of benches on which dry agricultural products can be hanged. [Claim 7] The agricultural product according to claim 6, wherein in the fourth step S140, the dry agricultural product is naturally dehydrated by using a tray-type dehydration table including a plurality of trays for spreading and spreading the dry agricultural product. Drying method. According to claim 6, In the sixth step (S160) by operating the thermostat 165 included in the drying chamber 160 by the dehumidification process by the dehumidifier 170 after the air supplied to the drying chamber 160 Rather, by heating or cooling the temperature of the air circulating in the drying chamber (160) by maintaining the interior of the drying chamber 160 at a temperature condition of (40 ± 5) ° C. The method of claim 6, wherein in the sixth step (S160), the air containing moisture in the drying chamber 160 is dehumidified using a dehumidifier 170 installed outside the drying chamber 160 and then dried air. After regenerating the air into the drying chamber 160, the moisture generated during the dehumidification process is discharged to the outside of the drying chamber 160, and the inside of the drying chamber 160 has at least one ventilation / circulating fan ( And 164) to ventilate and circulate the internal air.

Images