KR20040099215A - Method for controlling blower volume of bulk curing barn - Google Patents

Abstract

PURPOSE: A method for controlling a flow rate of hot air in a bulk drier is provided to enable achievement of high-quality tobacco through automatic adjustment in the flow rate of hot air while improving a consumption efficiency of energy. CONSTITUTION: The method for controlling a flow rate of hot air in a bulk drier comprises the steps of: selecting the state of tobacco leaves(S1); operating the drier(S2); drying the objects to be dried while keeping the flow rate of hot air at 100 percent(S3); drying the objects while keeping the flow rate of hot air at 50 percent until the objects have a yellow color(S4); drying the objects without discoloration(S5); drying the interior portion of the objects; and completing operation of the drier.

Description

Method for controlling blower volume of hot air circulating bulk dryer {Method for controlling blower volume of bulk curing barn}

The present invention relates to a method for controlling the air volume of a hot air circulation bulk dryer for drying the harvested tobacco leaf, and more particularly, by automatically adjusting the drying air volume according to the foliar state of the harvested tobacco leaf, high-quality tobacco can be obtained as well. The present invention relates to a method for controlling the air volume of a hot air circulation bulk dryer that can prevent energy loss in advance and improve energy efficiency.

In general, leaf tobacco producers harvest tobacco leaves, and then dry it to a moisture content of 6-7%. The dried tobacco leaves are delivered to a processor, and the processor is dried again using hot air using steam, then performs a flavoring process, cures, finely cuts, and commercializes.

The leaf tobacco producer dries the tobacco leaves using a hot air circulation bulk dryer until the moisture content of the leaf tobacco is about 6-7%. Leaf tobacco to be dried in the dryer is dried through the hot pot step to steam the leaf tobacco, yellowing (黄 택) step, color fixation step and junggol drying step. At this time, in order to produce high-quality leaf tobacco, in the yellowing step and the bone drying step, drying should be carried out with the blowing amount of less than half of the blowing amount applied to the increasing effect step and color fixing step.

However, in the related art, the dryer has the same blowing amount in each step, so that the tip of the leaf tobacco dried in the yellowing step and the bone drying step is rolled up to deteriorate the quality of the leaf tobacco. In addition, there is a problem in that the consumption of electricity and fuel costs excessively and the energy efficiency is low by the same blowing amount.

The present invention has been made to solve the conventional problems as described above, an object of the present invention by automatically adjusting the dry air volume of the harvested tobacco leaf according to the position of the leaves, high-quality cigarettes as well as loss of energy It is to provide a method for controlling the air volume of the hot air circulation bulk dryer that can prevent energy in advance to improve energy efficiency.

1 is a view schematically showing a device for controlling the air volume of a hot air circulating bulk dryer according to the present invention, and

2 is a flow chart illustrating a method for controlling the air volume of the hot air circulating bulk dryer according to the present invention.

Explanation of symbols on the main parts of the drawing

10: control unit 20: input unit

30: drive unit 40: display unit

In order to achieve the object of the present invention as described above, the present invention,

In step S1, the dried leaf is put into a conventional hot air circulating bulk dryer under the state that the harvested tobacco leaves are separated by varieties (S1);

When the step (S1) is completed, operating the hot air circulation bulk dryer (S2);

When the step (S2) is completed, performing the drying effect of steaming the dry matter while maintaining the blowing amount 100% (S3);

When the thickening drying is completed (S3), performing yellowing drying so that the dried material has a yellow color while maintaining the blowing amount less than half of the blowing amount in the thickening drying step (S4);

When the yellowing drying is completed (S4), performing a color-fix fixed drying so that the drying is yellow while maintaining the air flow amount equal to 100% of the increase drying (S3) (S5);

When the color-fixed fixed drying is completed (S4), carrying out the intermediate bone drying to dry the middle bone of the dried while maintaining the air flow amount less than half the same as the yellowing drying (S4) (S6); And

When the increase efficacy drying (S3), the yellowing drying (S4), the color fixed fixed drying (S5) and the core bone drying (S6) is completed, the step of completing the drying operation by ending the operation of the hot air circulation bulk dryer (S7) It provides a method for controlling the air flow of the hot air circulation bulk dryer comprising a).

As described above, according to the present invention, by automatically adjusting the dry air volume of the harvested tobacco leaf according to the leaf position, not only can you obtain a high-quality cigarette, but also prevent energy loss and improve energy efficiency. have.

Hereinafter, with reference to the accompanying drawings will be described for the air flow control method of the hot air circulation bulk dryer according to an embodiment of the present invention.

1 is a view schematically showing an air blowing amount control device of a hot air circulation bulk dryer according to the present invention.

Referring to Figure 1, the hot air circulation bulk dryer (not shown) according to the present invention is a control unit 10 for controlling the drying operation of the input leaf tobacco, the input unit 20 for driving a dryer by sending a signal to the control unit 10 side And a driving unit 30 for controlling the air volume according to the signal output from the control unit 10 and a display unit 40 for outputting a drying condition setting state and a drying state in progress.

The input unit 20 includes a dry matter selection switch 21 for selecting the leaf position of the tobacco leaf, a drive switch 22 for driving the dryer, a dry bulb temperature detection device 23, a wet bulb temperature detection device 24, and burner abnormality detection. Apparatus 25 and wet bulb control device detection device 26, the drive unit 30 is a wind flow rate control device 31 for controlling the air volume in accordance with the signal of the control unit 10, and a hot air supply device for adjusting the drying temperature 32, a wet structure cutting device 33 for adjusting the wet bulb temperature, and an alarm device 34 for generating an alarm sound when an abnormality occurs in the dryer.

2 is a flow chart illustrating a method for controlling the air volume of the hot air circulating bulk dryer according to the present invention.

Referring to FIG. 2, first, the harvested leaf tobacco is put into a hot air circulating bulk dryer under the state of separating the varieties by varieties, and then the program according to the leaf position of the dried product is selected by operating the dry matter selection switch 21 of the input unit 20 ( Step S1). Table 1 below shows the program number for each leaf position of the tobacco leaf.

Leaf tobacco leaf classification 1, lower lobe 2, lower middle 3, the middle 4, the middle leaf 5, main leaf 6, book, upper leaf 7, upper lobe

Table 1. Leaf tobacco leaf position

When drying selection is completed (step S1), the drive switch 22 of the input unit 20 is similarly operated to operate the dryer (step S2). At this time, by the operation of the drive switch 22, the control unit 10 reads the leaf position of the building and the drive signal.

When the above-described step (S2) is completed, the control unit 10 is a dry bulb temperature detection device 23, wet bulb temperature detection device 24, burner abnormality detection device 25, wet bulb control device detection device of the input unit 20 ( 26, the leaf tobacco, which is dried, is operated while the air flow control device 31, the hot air supply device 32, the wet rescue device 33, the alarm device 34, and the display unit 40 of the drive unit 30 are operated. Moxibustion is effected by dry drying (step S3). At this time, the hot air generated by the hot air supply device 32 inside the hot air circulating bulk dryer is guided to 100% of the air flow through the air volume control device 31, and at the same time, the dry bulb temperature of the hot air circulating bulk dryer is 30 to 40. ℃, wet bulb temperature is 29 ~ 39 ℃ while maintaining the enrichment for 9 to 12 hours. Table 2 shows the examples according to the drying effect for each leaf state.

1, lower lobe 2, lower middle 3, the middle 4, the middle leaf 5, main leaf 6, book, upper leaf 7, upper lobe Dry bulb temperature (℃) 30-38 30-38 30-39 30-39 32-40 32-40 32-40 Wet bulb temperature (℃) 29-36 29-36 29-37 29-37 31-38 31-38 31-39 Running time (hours) 9 9 10 11 11 11 12 Blowing air volume (%) 100 100 100 100 100 100 100

Table 2. Increased Drying Conditions by Leaf Position

When the efficacious drying is completed (S3), the control unit 10 performs yellowing drying to convert the leaf tobacco to yellow (step S4). At this time, the air volume inside the hot air circulating bulk dryer maintains less than half of the air volume in the evaporative drying process, and the dry bulb temperature in the hot air circulating bulk dryer is maintained at 38-45 ° C., and the wet bulb temperature is 36-62 ° C. Yellowing drying is performed. Table 3 shows the examples according to the yellowing drying by foliar state.

1, lower lobe 2, lower middle 3, the middle 4, the middle leaf 5, main leaf 6, book, upper leaf 7, upper lobe Dry bulb temperature (℃) 38-43 38-43 39-43 39-43 40-45 40-45 40-45 Wet bulb temperature (℃) 36-36 36-36 37-37 37-37 38-38 38-42 39-42 Running time) 36 41 44 39 51 51 62 Blowing air volume (%) 60 60 60 60 60 60 60

Table 3. Drying Conditions of Yellowing by Leaf Position

When the yellowing drying is completed in this way (S4), the control unit 10 again performs color-fixed fixing so that the leaf tobacco is yellow (step S5). At this time, the air volume inside the hot air circulating bulk dryer maintains the same 100% as the increase drying effect and at the same time, the dry bulb temperature inside the hot air circulating bulk dryer maintains 45-55 ℃ and wet bulb temperature 36-39 ℃ for 29-43 hours. Perform fixed drying. Table 4 shows the examples according to the color-fixed drying by each leaf state.

1, lower lobe 2, lower middle 3, the middle 4, the middle leaf 5, main leaf 6, book, upper leaf 7, upper lobe Dry bulb temperature (℃) 45-53 45-53 45-53 45-53 48-55 48-55 48-55 Wet bulb temperature (℃) 36-37 36-37 37-38 37-38 38-39 38-39 38-39 Running time) 29 31 36 40 41 41 43 Blowing air volume (%) 100 100 100 100 100 100 60

Table 4. Color Picking Drying Conditions by Leaf Location

As described above, when the color fixing fixing is completed (S4), similarly, the control unit 10 performs the middle bone drying to dry the middle bone contained in the leaf tobacco (step S6). At this time, the air flow inside the hot air circulating bulk dryer maintains less than half the same as the yellowing drying, and the dry bulb temperature inside the hot air circulating bulk dryer maintains 55 ~ 68 ℃ and wet bulb temperature 38 ~ 41 ℃, Drying is carried out. Table 5 will show examples according to the variety of bone drying.

1, lower lobe 2, lower middle 3, the middle 4, the middle leaf 5, main leaf 6, book, upper leaf 7, upper lobe Dry bulb temperature (℃) 55-68 55-68 55-68 55-68 57-68 57-68 57-68 Wet bulb temperature (℃) 38-41 38-41 38-41 38-41 39-41 39-41 39-41 Running time) 25 28 30 30 31 35 33 Blowing air volume (%) 60 60 60 60 60 60 60`

Table 5. Dry bone condition by leaf position

When the increase effect drying (S3), yellowing drying (S4), color fixed fixed drying (S5) and the intermediate bone drying (S6) is completed, the controller 10 ends the operation of the dryer to complete the drying operation (step S7).

As described above, according to the present invention by varying the blowing amount according to the thickening drying (S3), yellowing drying (S4), color-coated fixed drying (S5) and junggol drying (S6), high quality dry leaf tobacco can be obtained Not only can it contribute to income, but it also has the advantage of preventing unnecessary waste of energy.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the invention described in the claims. You will understand.

Claims (6)

Selecting the drying program for each leaf position after inputting the dry matter to a conventional hot air circulation bulk dryer under the state of separating the harvested tobacco leaves by varieties (S1); When the step (S1) is completed, operating the hot air circulation bulk dryer (S2); When the step (S2) is completed, performing the drying effect to steam the dry matter while maintaining the airflow amount of 100% (S3); When the thickening drying is completed (S3), performing yellowing drying so that the dried material has a yellow color while maintaining the blowing amount less than half of the blowing amount in the thickening drying step (S4); When the yellowing drying is completed (S4), performing a color-fix fixed drying so that the drying is yellow while maintaining the air flow amount equal to 100% of the increase drying (S3) (S5); When the color-fixed fixed drying is completed (S4), carrying out the intermediate bone drying to dry the middle bone of the dried while maintaining the air flow amount less than half the same as the yellowing drying (S4) (S6); And When the increase efficacy drying (S3), the yellowing drying (S4), the color fixed fixed drying (S5) and the core bone drying (S6) is completed, the step of completing the drying operation by ending the operation of the hot air circulation bulk dryer (S7) Blowing air volume control method of a hot air circulation bulk dryer comprising a). The method of controlling the air volume of the hot-air circulating bulk dryer according to claim 1, characterized in that the lower lobe, lower, middle lobe, middle lobe, middle lobe, main lobe, main lobe, upper lobe, and upper lobe according to the leaf position of the dried material in step (S1). . According to claim 1, wherein in the drying step (S3) for 9 to 12 hours while maintaining the dry bulb temperature in the hot air circulation bulk dryer 30 to 40 ℃, wet bulb temperature 29 to 39 ℃ Air flow control method of hot air circulation bulk dryer. According to claim 1, wherein in the yellowing drying step (S4) characterized in that for 36 to 62 hours while maintaining a dry bulb temperature of 38 ~ 45 ℃, wet bulb temperature of 36 ~ 42 ℃ inside the hot air circulation bulk dryer Air flow control method of hot air circulation bulk dryer. According to claim 1, wherein the color-fixed drying step (S4) characterized in that carried out for 29 to 43 hours while maintaining the dry bulb temperature 45 ~ 55 ℃, wet bulb temperature 36 ~ 39 ℃ inside the hot air circulation bulk dryer Air flow control method of the hot air circulation bulk dryer. According to claim 1, wherein the thickening drying step (S4) is carried out for 25 to 35 hours while maintaining a dry bulb temperature of 55 ~ 68 ℃, wet bulb temperature of 38 ~ 41 ℃ inside the hot air circulation bulk dryer Air flow control method of hot air circulation bulk dryer.