KR20190059027A - Bio-drying method using fine controlling of air-supply - Google Patents

Abstract

Disclosed in the present invention is a waste drying method using a waste drying apparatus, comprising: a main body (10); an upper pipeline (50); a lower pipeline (60); a temperature sensor; a blower (20); and a control unit. Disclosed is the waste drying method, which is characterized by comprising: an input variable setting step (100); an initial air supply beginning step (200); a current temperature calculating step (300); an air supply increasing step (500); an air supply decreasing step (600a); and an air supply correction step (400). Therefore, moisture of waste can be effectively removed by utilizing a biological drying process which does not use fossil fuels.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of drying waste using fine adjustment of an air supply amount,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of environmental technology, and more particularly, to a waste drying apparatus and a waste drying method using the same.

In general, waste treatment is a major problem in the depletion of landfill sites and prevention of global warming. In order to reduce the waste, MBT uses various processes to mechanically sort combustible components to produce solid fuel, Install the drying process.

The municipal waste contains many kinds of organic wastes which are food wastes, plants or animal components, and also contains a large amount of organic wastes. Therefore, the mechanical sorting of the combustible wastes required for producing the solid waste fuel is difficult, % Of mechanical sorting residues have an adverse effect on local environmental pollution and global warming due to leakage of leachate and emission of odor and landfill gas.

The higher the content of organic components, the lower the yield of the selected solid fuel in the pretreatment of municipal waste, the higher the amount of generated residue and the lower the calorific value due to the higher water content.

Therefore, the production of waste solid fuel through pre-treatment of municipal solid waste can be carried out by drying process to increase the yield of solid fuel through selection of additional solid fuel by raising the calorific value of low residue sorting residue according to legal standards, .

Waste Solids are typically used in LNG or thermal drying processes using waste heat and power as energy sources, and there are various examples of producing solid fuels by appropriately putting the biological drying process into the process as needed.

However, since the thermal drying process is accompanied by environmental contradictions and economic losses that require the use of large amounts of fossil fuels in order to produce waste solid fuel, the process of utilizing environmentally friendly biomass drying (Bio-drying) It is also used.

The biological drying process is applied to various technologies such as tunnel type, rotary drum type, pile type, and closed container type depending on the type of the target wastes, the state of the waste, and the regional characteristics.

However, in order to apply these existing biological drying processes to existing processes, many design changes need to be made.

Accordingly, there is a need for a method capable of solving the environmental and economic problems of the thermal drying process of the flammable waste sorting facility of the currently used municipal waste pretreatment facility, and installing an appropriate biological drying process without major modification of the existing process.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a waste drying apparatus and a waste drying method using the waste drying apparatus for efficiently removing moisture from waste by utilizing a biological drying process not using fossil fuel For that purpose.

In order to solve the above-described problems, the present invention provides a washing machine comprising: a main body 10 having a storage space for waste therein; An upper conduit 50 for supplying air to the upper part of the inside of the body 10 or for discharging air from the upper part; A lower duct 60 installed to supply air to the lower part of the inside of the main body 10 or to discharge air from the lower part thereof; A temperature sensor installed to measure the temperature of the inside of the main body 10 or the temperature of air discharged to the outside from the inside thereof; A blower (20) installed to supply air to the inside of the main body (10) through the upper duct (50) or the lower duct (60); And a control unit for receiving the temperature data of the temperature sensor and controlling the amount of air supplied by the blower 20 so that the temperature of the inside of the main body 10 or the discharge air is maintained within a predetermined range, as a drying method using waste, the lower limit temperature (T _LL) with respect to the control unit, Upper limit temperature (T _UL), temperature limit (T _DL), the initial air flow rate (F _i), change An input variable setting step (100) of setting an air supply amount application time (dt); Starting the operation of the blower 20, the air initially supplied to start step 200 for supplying air to the to the initial air flow rate (F _i) with respect to the main body 10; Wherein the current temperature (T _t ) measured by the temperature sensor is lower than the lower temperature limit (T _LL ) and A current temperature calculation step (300) for calculating whether the temperature is within a range of the upper temperature limit (T _UL ) or out of the range; (500) for increasing the air supply amount by the blower (20) when the current temperature (T _t ) is calculated to be higher than the upper temperature limit (T _UL ) in the current temperature calculation step (300) ); In the current temperature calculation step 300, when the current temperature T _t is calculated to be lower than the temperature lower limit T _LL , an air supply reduction step 600a for reducing the air supply amount by the blower 20 ); In the current temperature calculation step 300, the current temperature T _t is lower than the temperature lower limit T _LL and (T _UL ), the air supply amount increased by the air supply increase step (500), or the air supply amount reduced by the air supply reduction step (600a) to the change air supply amount The supply of the air corresponding to the current air supply amount (F _t ) during the time (dt / 2) smaller than the changed air supply application time (dt) variation tolerance (t _DL) when the current continues to supply the air flow rate (F _t), the temperature change is the temperature change tolerance (t _DL) to the current increase correct the air flow rate (F _t) or decreased if it exceeds within And an air supply correcting step (400) of correcting and supplying the corrected air supply.

The air supply correction step 400 may be performed while supplying air corresponding to the current air supply amount F _t for a time dt / 2 that is less than the changed air supply amount application time dt, correction needed for calculating whether the current temperature (T _{t + 1)} and the current temperature of the current temperature calculation step 300, the difference value of the temperature change is the temperature change tolerance (T _t), (T _DL) or less or an excess (410); An air supply increase correction step (420) for increasing correction of the air supply amount by the blower (20) when the temperature change amount is larger than the (+) value of the temperature change tolerance value (T _DL ); An air supply reduction correction step (430) for reducing correction of the air supply amount by the blower (20) when the temperature change amount is smaller than (-) value of the temperature change tolerance value (T _DL ); The air supply amount when the temperature change amount is equal to or less than the temperature change tolerance value T _{DL in} the correction necessity calculation step 410, the air supply amount that is increased by the air supply increase correction step 420, And an air supply sustaining step 440 for continuously supplying the air supply amount reduced by the correction step 430 during the changing air supply application time dt.

The input parameter setting step 100 may further include setting an initial air supply duration t _m and after the input parameter setting step 100, before the initial air supply start step 200, the initial air feed conditions, the input stage (110) for inputting the initial air supply starting time point (t _s); further comprising a, and wherein the starting initial air feed step 200, the air supply amount changes before input to the current point in time (t _a) (210); The air flow rate changes before the current time point (t _a) and the initial air supply starting time point (t _s) of the air flow rate variation calculating a difference value, the difference value is larger than the initial air feed duration (t _m) of And a current temperature input step (220) for inputting a current temperature (T _t ) measured by the temperature sensor at _a previous present time point (t _a ), wherein the current temperature calculation step (300) It is preferable that the calculation is performed on the current temperature T _t .

The input parameter setting step 100 may further include setting an air supply amount change amount dF ₁ and an air supply amount correction amount F _{2 that} is smaller than the air supply amount change amount dF ₁ , step 420, the initial air flow rate (F _i) or the air for computing a new current air flow rate (F _t) plus the air supply correction amount (F ₂₎ on the current air flow rate (F _t) and the corresponding An increasing correction air supply application step (421) for supplying; And a current time input step (422) after an air supply amount change inputting a current time (t _b ) after the air supply amount change by the increase correction air supply amount application step (421), wherein the air supply increase step , increased air flow rate to calculate the new current air flow rate (F _t) plus the air supply amount of change (dF ₁₎ to the initial air flow rate (F _i) or the current air flow rate (F _t) and supplies the air equivalent Application step 510; And a present time input step (520) after the air supply amount change inputting the present time (t _b ) after the air supply amount change by the increased air supply amount application step (510), wherein the initial air supply start step (200) , Calculates a difference value between _a current time point (t _b ) after the change in the air supply amount and a current time point (t _a ) before the change in the air supply amount, and the difference value is larger than the changed air supply amount application time (dt) A new air supply change pre-change current time input step 210 for inputting _a current time instant t _a before a new air supply change at a current time t _b after the change; And a current temperature input step (220) for inputting a current temperature (T _t ) measured by the temperature sensor at _a current time point (t _a ) before the new air supply amount change, wherein the current temperature calculation step (300) It is preferable to perform the calculation on the input current temperature T _t .

The air supply increases the correction step 420, the new current air flow rate (F _t) air supply increase correction limiting step that does not exceed the maximum increase correction air flow rate is preset (423); it is preferable to further include a .

The input parameter setting step 100 further includes setting an air supply amount change amount dF ₁ and an air supply amount correction amount F _{2 that} is smaller than the air supply amount change amount dF ₁ , Step 430 is a step of calculating a new current air supply amount F _t obtained by subtracting the air supply amount correction amount F ₂ from the initial air supply amount F _i or the current air supply amount F _t , A reducing correction air supply application step 431 for supplying the reduced correction air supply amount; And a present time input step (422) after the air supply amount change inputting the present time (t _b ) after the air supply amount change by the decrease correction air supply amount applying step (431), wherein the air supply reducing step (600a) , reduced air flow rate to calculate the new current air flow rate (F _t) obtained by subtracting the air flow rate change (dF ₁₎ in the initial air flow rate (F _i) or the current air flow rate (F _t) and supplies the air equivalent Application step 610a; And a current time input step (620a) after the air supply amount change inputting the current time (t _b ) after the air supply amount change by the reduced air supply amount application step (610a), wherein the initial air supply start step (200) , Calculates a difference value between _a current time point (t _b ) after the change in the air supply amount and a current time point (t _a ) before the change in the air supply amount, and the difference value is larger than the changed air supply amount application time (dt) A new air supply change pre-change current time input step 210 for inputting _a current time instant t _a before a new air supply change at a current time t _b after the change; And a current temperature input step (220) for inputting a current temperature (T _t ) measured by the temperature sensor at _a current time point (t _a ) before the new air supply amount change, wherein the current temperature calculation step (300) It is preferable to perform the calculation on the input current temperature T _t .

The air supply reduction correction step 430 may further include an air supply reduction correction limiting step 433 for preventing the new current air supply amount F _t from being less than a preset minimum correction correction air supply amount .

The present invention includes a main body 10 having a storage space for waste therein; An upper conduit 50 for supplying air to the upper part of the inside of the body 10 or for discharging air from the upper part; A lower duct 60 installed to supply air to the lower part of the inside of the main body 10 or to discharge air from the lower part thereof; A temperature sensor installed to measure the temperature of the inside of the main body 10 or the temperature of air discharged to the outside from the inside thereof; A blower (20) installed to supply air to the inside of the main body (10) through the upper duct (50) or the lower duct (60); And a control unit for receiving the temperature data of the temperature sensor and controlling the air supply amount and the air supply direction by the blower 20 so that the temperature of the inside of the main body 10 or the exhaust air is maintained within a certain range , The control unit controls the upflow mode in which air is supplied to the inside of the main body 10 through the lower conduit 60 and air is discharged from the inside of the main body 10 through the upper conduit 50 Or a downflow mode in which air is supplied to the inside of the main body 10 through the upper pipeline 50 and air is discharged from the inside of the main body 10 through the lower pipeline 60, A waste drying method using a waste drying apparatus for controlling an air supply direction by an air blower (20), comprising the steps of: controlling a temperature lower limit (T _LL ) Upper limit temperature (T _UL), temperature limit (T _DL), the initial air flow rate (F _i), change An input variable setting step (100) of setting an air supply amount application time (dt); Starting the operation of the blower 20, the air initially supplied to start step 200 for supplying air to the to the initial air flow rate (F _i) with respect to the main body 10; Wherein the current temperature (T _t ) measured by the temperature sensor is lower than the lower temperature limit (T _LL ) and A current temperature calculation step (300) for calculating whether the temperature is within a range of the upper temperature limit (T _UL ) or out of the range; (500) for increasing the air supply amount by the blower (20) when the current temperature (T _t ) is calculated to be higher than the upper temperature limit (T _UL ) in the current temperature calculation step (300) ); In the present temperature calculation step 300, when the current temperature T _t is calculated to be lower than the temperature lower limit T _LL , the amount of air supplied by the blower 20 is reduced, An air supply reducing and changing direction (600) for changing the air supply direction when the direction continues for a predetermined time; In the current temperature calculation step 300, the current temperature T _t is lower than the temperature lower limit T _LL and (T _UL ), the air supply amount increased by the air supply increase step (500), or the air supply amount reduced by the air supply reduction step (600a) to the change air supply amount The supply of the air corresponding to the current air supply amount (F _t ) during the time (dt / 2) smaller than the changed air supply application time (dt) variation tolerance (t _DL) when the current continues to supply the air flow rate (F _t), the temperature change is the temperature change tolerance (t _DL) to the current increase correct the air flow rate (F _t) or decreased if it exceeds within And an air supply correcting step (400) of correcting and supplying the corrected air supply.

The air supply correction step 400 may be performed while supplying air corresponding to the current air supply amount F _t for a time dt / 2 that is less than the changed air supply amount application time dt, correction needed for calculating whether the current temperature (T _{t + 1)} and the current temperature of the current temperature calculation step 300, the difference value of the temperature change is the temperature change tolerance (T _t), (T _DL) or less or an excess (410); An air supply increase correction step (420) for increasing correction of the air supply amount by the blower (20) when the temperature change amount is larger than the (+) value of the temperature change tolerance value (T _DL ); An air supply reduction correction step (430) for reducing correction of the air supply amount by the blower (20) when the temperature change amount is smaller than (-) value of the temperature change tolerance value (T _DL ); The air supply amount when the temperature change amount is equal to or less than the temperature change tolerance value T _{DL in} the correction necessity calculation step 410, the air supply amount that is increased by the air supply increase correction step 420, And an air supply sustaining step 440 for continuously supplying the air supply amount reduced by the correction step 430 during the changing air supply application time dt.

The input parameter setting step 100 may further include setting an initial air supply duration t _m and after the input parameter setting step 100, before the initial air supply start step 200, the initial air feed conditions, the input stage (110) for inputting the initial air supply starting time point (t _s); further comprising a, and wherein the starting initial air feed step 200, the air supply amount changes before input to the current point in time (t _a) (210); The air flow rate changes before the current time point (t _a) and the initial air supply starting time point (t _s) of the air flow rate variation calculating a difference value, the difference value is larger than the initial air feed duration (t _m) of And a current temperature input step (220) for inputting a current temperature (T _t ) measured by the temperature sensor at _a previous present time point (t _a ), wherein the current temperature calculation step (300) It is preferable that the calculation is performed on the current temperature T _t .

An initial air supply direction condition input step for inputting the initial air supply direction setting time t _c and the current air supply direction H _t before the initial air supply start step 200, (120). ≪ / RTI >

The temperature sensor includes an upper temperature sensor installed to measure the temperature of the upper part of the inside of the main body 10 or the temperature of the air discharged to the outside from the upper part thereof; And a lower temperature sensor installed to measure the temperature of the lower part of the inside of the main body 10 or the temperature of the air discharged to the outside from the lower part of the main body 10. The present temperature input step 220 is a step of, , The upper current temperature T _p measured by the upper temperature sensor is inputted and the lower current temperature T _n measured by the lower temperature sensor is inputted in the case of the downflow mode.

The input parameter setting step 100 may further include setting an air supply amount change amount dF ₁ and an air supply amount correction amount F _{2 that} is smaller than the air supply amount change amount dF ₁ , step 420, the initial air flow rate (F _i) or the air for computing a new current air flow rate (F _t) plus the air supply correction amount (F ₂₎ on the current air flow rate (F _t) and the corresponding An increasing correction air supply application step (421) for supplying; And a current time input step (422) after an air supply amount change inputting a current time (t _b ) after the air supply amount change by the increase correction air supply amount application step (421), wherein the air supply increase step , increased air flow rate to calculate the new current air flow rate (F _t) plus the air supply amount of change (dF ₁₎ to the initial air flow rate (F _i) or the current air flow rate (F _t) and supplies the air equivalent Application step 510; And a present time input step (520) after the air supply amount change inputting the present time (t _b ) after the air supply amount change by the increased air supply amount application step (510), wherein the initial air supply start step (200) , Calculates a difference value between _a current time point (t _b ) after the change in the air supply amount and a current time point (t _a ) before the change in the air supply amount, and the difference value is larger than the changed air supply amount application time (dt) A new air supply change pre-change current time input step 210 for inputting _a current time instant t _a before a new air supply change at a current time t _b after the change; And a current temperature input step (220) for inputting a current temperature (T _t ) measured by the temperature sensor at _a current time point (t _a ) before the new air supply amount change, wherein the current temperature calculation step (300) It is preferable to perform the calculation on the input current temperature T _t .

The air supply increases the correction step 420, the new current air flow rate (F _t) air supply increase correction limiting step that does not exceed the maximum increase correction air flow rate is preset (423); it is preferable to further include a .

Wherein the input parameter setting step (100) further comprises setting an end reference air supply amount (F _e ), a termination reference air supply duration (t _f ), and an air supply direction application time (dH) The supply reduction and direction changing step 600 includes an air supply direction change point input step 610 for inputting the current point of time t _d before the air supply direction change; An air supply direction duration calculating step (620) of calculating a difference value between a present time t _d before the air supply direction change and the initial air supply direction setting time t _c ; In the air supply direction sustain time calculation step, if the difference value is smaller than the air supply direction application time (dH), the air supply direction of the blower (20) is maintained as it is, And changing or changing the air supply direction of the air blower 20 if the air supply direction is greater than or equal to the time dH.

The input parameter setting step 100 further includes setting an air supply amount change amount dF ₁ and an air supply amount correction amount F _{2 that} is smaller than the air supply amount change amount dF ₁ , Step 430 is a step of calculating a new current air supply amount F _t obtained by subtracting the air supply amount correction amount F ₂ from the initial air supply amount F _i or the current air supply amount F _t , A reducing correction air supply application step 431 for supplying the reduced correction air supply amount; And a present time input step (432) after the air supply amount change inputting the current time (t _b ) after the air supply amount change by the decrease correction air supply amount application step (431), wherein the air supply reduction and direction changing step 600) calculates a new current air supply amount (F _t ) by subtracting the air supply amount change amount (dF ₁ ) from the initial air supply amount (F _i ) or the current air supply amount (F _t ) after the air supply direction maintenance or change step (640) a reducing air supply amount calculation step (640) for calculating and supplying corresponding air; If the current air flow rate (F _t) is equal to or less than the termination reference air flow rate (F _e), determining whether the end time of the input step of inputting the end point is determined whether (t _e) (650); An end reference air supply duration calculation step (660) of calculating a difference value between _a current time point (t _a ) before the air supply amount change and the end point determination time (t _e ); And a blower termination step (670) for terminating the blower (20) if the difference value is greater than or equal to the termination reference air supply duration (t _f ) in the termination reference air supply duration calculation step .

The air supply reduction and direction change step 600 may be performed when the current air supply amount F _t is greater than the termination reference air supply amount F _e or in the termination reference air supply duration calculation step, And a current time point input step (680) after the air supply amount change inputting the current time point t _b after the change in the air supply amount if the termination reference air supply continuation time (t _f ) is smaller than the termination reference air supply continuation time (t _f ) Step 200 calculates a difference between the current time t _b and the current time t _a before the change in the air supply amount after the change in the air supply amount and when the difference is smaller than the change air supply application time dt A new air supply amount change pre-change point input step (210) for inputting _a current time point (t _a ) before a new air supply amount change at a current time point (t _b ) after the change in the air supply amount increased; And a current temperature input step (220) for inputting a current temperature (T _t ) measured by the temperature sensor at _a current time point (t _a ) before the new air supply amount change, wherein the current temperature calculation step (300) It is preferable to perform the calculation on the input current temperature T _t .

The air supply reduction correction step 430 may further include an air supply reduction correction limiting step 433 for preventing the new current air supply amount F _t from being less than a preset minimum correction correction air supply amount .

The present invention proposes a waste drying apparatus and a method of drying waste using the waste drying apparatus, which can effectively remove moisture from waste by utilizing a biological drying process that does not use fossil fuel.

1 shows an embodiment of the present invention,
1 is a side view of a main body of a waste drying apparatus;
2 is a front view of the main body of the waste drying apparatus;
3 is a plan view of the body of the waste drying apparatus;
4 is a cross-sectional view of the air supply line of the waste drying apparatus.
5 is a block diagram of an upflow mode of a waste drying apparatus.
6 is a schematic view of a downflow mode of a waste drying apparatus;
7 is a block diagram of a first embodiment of a waste drying method.
8 is a block diagram of a second embodiment of a waste drying method.

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

1, the waste drying method according to the present invention can be carried out using a waste drying apparatus having the following structure.

The waste disposal apparatus includes a main body 10 having a storage space for waste therein; An upper conduit 50 installed to supply air to the upper part of the inside of the main body 10 or to discharge air from the upper part; A lower conduit 60 for supplying air to the lower part of the inside of the main body 10 or for discharging air from the lower part thereof; A temperature sensor installed to measure the temperature of the inside of the main body 10 or the temperature of the air discharged to the outside from the inside thereof; A blower 20 installed to supply air to the inside of the main body 10 through the upper duct 50 or the lower duct 60; And a control unit which receives the temperature data of the temperature sensor and controls the amount of air supplied by the blower 20 and the air supply direction so that the temperature of the inside of the main body 10 or the temperature of the discharged air is maintained within a certain range.

The control unit may be an upflow mode in which air is supplied to the inside of the main body 10 through the lower conduit 60 and air is discharged from the inside of the main body 10 through the upper conduit 50, To control the air supply direction by the blower 20 so as to be a downflow mode in which air is supplied to the inside of the main body 10 through the lower duct 60 and air is discharged from the inside of the main body 10 through the lower duct 60. [ .

This is basically based on the premise that the waste is dried by the heat of decomposition generated when the organic matter contained in the waste (low-grade sorting residue, mixed municipal waste) is aerobic decomposed without using any fossil fuel .

In order to efficiently dry the waste, it is required that the inside of the main body is maintained at a proper temperature or higher, and air and moisture are stably supplied (distributed) throughout the inside of the main body of the drying apparatus.

When only the upward flow type in which air is supplied to the inside of the main body 10 through the lower conduit 60 and air is discharged from the inside of the main body 10 through the upper conduit 50, Moisture is concentrated in the inner upper layer, and water is insufficient in the middle layer and the lower layer, so that the aerobic decomposition of the organic components located in the middle layer and the lower layer becomes inactive.

On the other hand, when only the downflow type in which air is supplied to the inside of the main body 10 through the upper duct 50 and air is discharged from the inside of the main body 10 through the lower duct 60, ), Water is concentrated and distributed in the inner lower layer, and water is insufficient in the middle layer and the upper layer, so that the aerobic decomposition of the organic components located in the middle layer and the upper layer becomes inactive.

Also, if the air supply amount is too large, it is advantageous to discharge the air containing moisture, but the internal temperature of the body becomes too low to prevent the decomposition of the organic component. On the contrary, if the air supply amount is too low, It is advantageous in decomposition but the internal air containing moisture is not discharged smoothly.

In the present invention, by controlling (changing) the amount of air supplied by the blower and the air supply direction by receiving the temperature data of the temperature sensor by the control unit, the temperature of the inside of the main body 10 or the temperature of the discharged air is kept within a certain range , So that moisture is evenly distributed over the whole interior area of the main body 10.

This will minimize the process changes of solid fuel sorting and thermal drying facilities, which are currently being used as municipal waste pretreatment facilities, and increase the efficiency of further sorting of low-grade sorting residues by utilizing the environmentally friendly biological drying process. And the final residue is reduced, the production of high-quality compost is possible, and the amount of inorganic residues to be buried can be minimized.

Hereinafter, a waste drying method using the waste drying apparatus according to the present invention will be described.

As described above, according to the present invention, by controlling (changing) the amount of air supplied by the blower and the air supply direction by receiving the temperature data of the temperature sensor by the control unit, the temperature of the inside of the main body 10, So that moisture is evenly distributed over the entire inner area of the main body 10. [0050]

If the air supply amount is too high, it is advantageous to discharge the air containing moisture, but the internal temperature of the body becomes too low to prevent decomposition of the organic component. On the contrary, if the air supply amount is too low, It is advantageous that the internal air containing moisture is not discharged smoothly.

That is, although the air supply amount and the internal temperature are essential factors for drying the waste, they are in inverse proportion to each other, and it is necessary to control them appropriately.

The present invention controls the air supply amount and the air supply direction by the blower to receive the temperature data of the temperature sensor by the control unit so that the temperature of the inside of the main body 10 or the exhaust air is maintained within a certain range, 10 so as to distribute the moisture evenly throughout the whole interior area of the water tank.

However, if the increase or decrease in the air supply amount is abrupt, the decomposition of the organic components may be hindered, resulting in an increase in the drying time as a whole.

In order to prevent this, the waste drying method according to the present invention does not uniformly supply the increased or decreased air supply amount but observes the change of the temperature change while supplying air for a certain period of time, And the supply amount is supplied.

Hereinafter, one embodiment of the present invention will be described in detail with reference to a block diagram of FIG.

The input parameters are set for the control unit (100).

The input variables are the lower temperature limit (T _LL ) The upper temperature limit (T _UL ) The initial air flow rate (F _i), change in air flow rate application time (dt), temperature limit (T _DL), the initial air feed duration (t _m), the air supply amount of change (dF _1), air flow rate correction amount (F ₂₎ and the like (air flow rate change amount (a value that is less than dF _1)), the reference end air flow rate (f _e), exit criteria air supply duration (t _f), the air supply direction application time (dH).

The air supply amount can be defined by various variables such as the number of revolutions of the fan, which is defined by the frequency of the inverter used in the blower.

The initial air supply start time t _s is input and the initial air supply amount F _i is set so that the blower 20 is initially operated to supply the air of the amount corresponding to the initial air supply amount F _i , (110) with the current air supply amount (F _t ).

In addition, an initial air supply direction condition such as an initial air supply direction setting time t _c and a current air supply direction H _t is input (recorded) (120).

Starting the operation of the blower 20, and supplies the air for the initial air flow rate (F _i) with respect to the main body 10 (200).

To be a decomposition of the first organic component to start, so some time consuming and maintains a constant time during the (initial air feed duration (t _m)) is constant regardless of the internal temperature of the main initial air flow rate (F _i).

For this, the control unit inputs 210 the current time t _a (current time) before the change in the air supply amount, and then inputs the current time t _a before the input air supply amount change and the initial air supply start time t _s in calculating the difference, and the initial air feed duration (t _m) significantly the time ((t _a) prior to the air supply changes the current point in time) than the difference value is set, the current temperature (t _t) measured by the temperature sensor (220).

The present temperature T _t measured by the temperature sensor is lower than the temperature lower limit T _LL and (300) whether it is within the range of the upper temperature limit (T _UL ) or out of range.

In the current temperature calculation step 300, if the present temperature T _t is lower than the temperature lower limit T _LL and If the operation to be within the range of the temperature upper limit value (T _UL), which the air supply and therefore the internal temperature implies that in balance, the change in air flow rate application time (dt) current air flow rate (F _t) for (start-up in the case of supplies to continue the air for the initial air flow rate (F _i)).

If the current temperature T _t is calculated to be higher than the upper temperature limit T _{UL in the} current temperature calculation step 300, this means that the internal temperature is too high and the discharge of the moisture-containing air is not smooth, The air supply amount by the blower is increased (500).

Conversely, when the current temperature T _t is calculated to be lower than the temperature lower limit T _{LL in the} current temperature calculation step 300, this is because the discharge of the moisture-containing air is smooth but the internal temperature is too low, The air supply amount by the blower is reduced, and when the same air supply direction is continued for a certain period of time, the air supply direction (600).

However, as described above, if the increase or decrease in the air supply amount is abrupt, the decomposition of the organic components may be hindered and the drying time may be increased as a whole. To prevent this, And the corrected air amount is supplied in accordance with the temperature change.

That is, in the current temperature calculation step 300, the current temperature T _t is lower than the lower temperature limit T _LL and The amount of air supplied by the air supply increase step 500 or the amount of air supply reduced by the air supply reduction step 600a is changed to the changed air supply amount application time (T _UL ) dt) less time than, but continue to supply, changes in air supply application time (dt) for (dt / 2) is the temperature change over to supply air corresponding to the current air flow rate (F _t) temperature limit for (t _DL The current air supply amount F _t is continuously supplied and the current air supply amount F _t is increased or decreased when the temperature change amount exceeds the temperature change tolerance T _DL .

Specifically, the upper air supply correction step 400 is performed by the following process.

While supplying air to the current to the air feed rate (F _t) for a change in air flow rate application time is less time (dt / 2) than the (dt), the current temperature _{(T t + 1)} measured by the temperature sensor and the current temperature calculation A determination is made as to whether the temperature change amount, which is the difference between the current temperature T _{t in} step 300, is less than or equal to the temperature change tolerance value T _DL (410).

When the temperature change amount is larger than the positive value of the temperature change tolerance T _DL (when the temperature excessively increases), the air supply amount by the blower 20 is increased and corrected (420).

On the contrary, if the temperature change amount is smaller than the negative value (-) of the temperature change tolerance (T _DL ) (the temperature excessively falls), the air supply amount by the blower 20 is reduced 430.

The air supply amount when the temperature change amount is equal to or less than the temperature change tolerance T _DL or the air supply amount that has been increased by the air supply increase correction step 420 or the air supply reduction correction step 430, (Dt) during the change air supply application time (dt).

Specifically, the air supply increase correction step 420 is performed by the following process.

A new current air supply amount F _t obtained by adding the air supply amount correction amount F ₂ to the initial air supply amount F _i or the current air supply amount F _t is calculated and the corresponding air is supplied 421.

However, in order to prevent the side effect, the new current air supply amount (F _t ) should not exceed the preset maximum increase correction air supply amount (60 Hz) (423).

After the air supply amount change by the increase correction air supply amount application step 421, the current time point t _b is inputted (422).

The air supply reduction correction step 430 is performed by the following process.

A new current air supply amount F _t obtained by subtracting the air supply amount correction amount F ₂ from the initial air supply amount F _i or the current air supply amount F _t is calculated and the corresponding air is supplied 431.

For this reason, the new current air supply amount F _t is not less than the predetermined minimum reduction correction air supply amount (20 Hz) (433).

The current time point t _b is input (432) after the air supply amount change by the decrease correction air amount application step 431.

Present in as inputs the temperature (T _t), as described above, when the upper temperature sensor, lower temperature sensor is installed as a temperature sensor, in the case of the upflow mode, the upper current temperature measured by the upper temperature sensor (T _p And inputs the lower current temperature T _n measured by the lower temperature sensor in the case of the downflow mode.

The upper air supply increase step 500 is performed by the following process.

A new current air supply amount F _{t obtained} by adding the air supply amount variation dF to the initial air supply amount F _i or the current air supply amount F _t is calculated and the corresponding air is supplied 510.

That is, the air supply amount change amount dF is set in advance, the air supply amount is increased only once by the set change amount dF, and then the change in the internal temperature of the main body is examined.

The current time point t _b after the change in the air supply amount is input (520).

A difference value between the current time point t _b and the current time point t _a before the air supply amount change after the air supply amount change is calculated and when the difference value becomes larger than the preset changing air supply amount application time dt At the present point in time t _b , a current point of time t _a before the change in the air supply amount is inputted (210).

That is, after the minimum time dt to which the changed air supply amount is applied is set in advance and the air supply amount F _t increased by a preset change amount dF is applied for the set time dt, So that the change in the internal temperature is examined.

At the present time t _a before the new air supply change, the current temperature T _t measured by the temperature sensor is inputted (220).

Then, the above-described process is repeated while calculating the current input temperature T _t .

In the drying method according to the present invention, the present time point (t _a, t _b ) is continuously input, which maintains the air supply amount by the preset initial air supply duration time (t _m ) It is for this reason.

The reason why the current time points t _{a and} t _b are two types is that the comparison target of the current time point t _a before the air supply amount change is the initial air supply start time t _s and the current time point t _b ) is the present time (t _a ) before the change in the air supply amount because the objects to be compared are different.

The upper air supply reduction and direction changing step 600 is specifically performed by the following process.

(T _d ) before the air supply direction change is input (610).

It calculates a difference value between the air supply direction change prior to the current point in time (t _d) and the initial air feed direction setting time (t _c) (620).

If the difference value is smaller than the air supply direction application time dH in the upper air supply direction duration calculation step 620, the air supply direction of the blower 20 is maintained as it is, dH), the air supply direction of the blower 20 is changed (630).

That is, the minimum time dH for supplying the air by the predetermined air supply direction (upflow or downflow) is set in advance, and once the established air supply direction is applied for the set time dH , So as to observe a change in the internal temperature of the main body.

A new current air supply amount F _{t obtained} by subtracting the air supply amount change amount dF ₁ from the initial air supply amount F _i or the current air supply amount F _t is calculated and the corresponding air is supplied 640.

If the present air supply amount F _t is smaller than or equal to the end reference air supply amount F _e , a termination determination timing t _e (current time point at that time) is input (650).

The difference between the current time t _a before the air supply change and the ending time determination time t _e is calculated 660.

In the upper end reference air supply duration calculation step 660, the blower 20 is terminated if the difference value is greater than or equal to the end reference air supply duration t _f .

That is, if the air supply amount F _t is smaller than or equal to the end reference air supply amount F _e (the air supply amount is excessively small), and the duration is greater than or equal to the predetermined end reference air supply duration t _f , It means that the supply of air no longer affects the drying of the waste, so the blower 20 is terminated.

If the current air supply amount F _t is greater than the termination reference air supply amount F _e or the difference value is less than the termination reference air supply duration t _{f in the} termination reference air supply duration calculation step 660 , It means that the supply of air is still necessary for the drying of the waste, so the driving of the blower 20 is continued but the reduced air supply is applied.

To do this, the current time point t _b is input after the change in the air supply amount (680).

The difference between the current time t _b and the current time t _a before the change in the air supply amount is calculated after the change in the air supply amount and the difference between the current time t t after the change in the air supply amount, _b ), a current time point t _a before the new air supply amount change is inputted (210).

At _a current point in time t _a before the new air supply change, a current temperature T _t measured by the temperature sensor is input (220).

Then, the above-described process is repeated while calculating the current input temperature T _t .

During the repetition, the present temperature (T _t ) measured by the temperature sensor is lower than the lower temperature limit (T _LL ) and (300) whether it is within the range of the upper temperature limit (T _UL ) or out of range.

In the current temperature calculation step 300, if the present temperature T _t is lower than the temperature lower limit T _LL and Temperature upper limit value (T _UL) if the operation to be within the scope of, this air flow rate and so the internal temperature implies that in balance, the change in air flow rate application time (dt) current air flow rate (F _t) (initial air for The supply amount (F _i ) is applied only for the first time).

In this case, too, the air supply amount that has been increased or decreased by the above-described correction step is supplied (400).

Hereinafter, the concrete structure of the waste drying apparatus according to the present embodiment will be described.

It is preferable that the air supply pipe 21 is installed in the lower part of the main body 10 in order to smoothly discharge the moisture containing air. In this case, the through hole 23 of the air supply pipe 21 may be blocked by the waste .

In order to prevent this, it is preferable that the through holes 23 of the air supply pipe 21 are formed so as to face the side and the lower side of the air supply pipe 21 (FIG. 4).

In the present invention, the control unit receives the temperature data of the temperature sensor and controls the air supply amount and the air supply direction by the blower 20. Since the internal temperature of the main body 10 is not constant over the entire area, A temperature sensor for detecting the temperature of the upper part of the inside of the main body 10 or the temperature of the air discharged to the outside from the upper part thereof; It is preferable to provide separately provided lower temperature sensors and perform control based on these respective data.

Since the air discharged from the main body 10 contains a lot of odor, it is possible to prevent the odor of the air discharged through the upper and lower conduits 50 and 60 from flowing into the upper and lower conduits 50 and 60 It is preferable that the malodor processing unit 40 is connected.

In the drying apparatus according to the present invention, odor-containing air can be discharged through both the upper pipeline 50 and the lower pipeline 60. The upper pipeline 50 and the lower pipeline 60 are all provided with one odor- It is preferable in terms of structural efficiency and economical efficiency.

The upflow mode and the downflow mode described above can be fundamentally changed by changing the blowing direction of the blower 20. In addition to the blower 20, the upper and the lower ducts 50, ), And a vent for suction of outside air should be connected.

To this end, a plurality of valves 70 are provided in the upper and lower ducts 50 and 60 so as to be in the upflow mode or the downflow mode by the positive pressure or the negative pressure of the blower 20, It is preferable to control the air supply direction by the valve 70 of the air conditioner.

Specifically, the upper pipe 50 includes an upper main pipe 51 connecting the upper portion of the main body 10 and the malodor processing portion 40; And an upper outside air suction pipe 52 branched at a central branch point of the upper main pipe 51 and having a trim at an end portion thereof and the lower pipe 60 is connected to the lower portion of the main body 10 and the malodor processing portion 40 A lower main pipe (61); A lower blowing pipe (62) branched at an outer branch point (61a) of the lower main pipe (61) and having an end connected to the blower (20); A lower outside air suction pipe 63 having one end connected to the blower 20 and a trim portion at the other end; And a bypass pipe (64) having one end connected to the center portion of the lower outside air suction pipe (63) and the other end connected to the inner branch point (61b) of the lower main pipe (61).

In this case, the plurality of valves 70 includes a first valve 71 provided in the lower blowing pipe 62; A second valve 72 provided between the outer branch point 61a of the lower main pipe 61 and the inner branch point 61b; A third valve 73 provided in the bypass pipe 64; A fourth valve (74) provided at the twisting portion of the lower outside air suction pipe (63); A fifth valve (75) installed at the twisting portion of the upper outside air suction pipe (52); And a sixth valve (76) provided outside the central branch point of the upper main pipe (51).

In the upflow mode, the control unit closes the first, third and fifth valves 71, 73 and 75, opens the second, fourth and sixth valves 72, 74 and 76, The second, fourth and sixth valves 72, 74 and 76 are closed and the first, third and fifth valves 71, 73 and 75 are opened.

Such a structure allows the upstream flow mode and the downflow flow mode to be stably mutually changed with respect to the pipeline structure including the blower, the odor treatment section, the twin section, etc. by the combination of the pipeline and the valve.

Hereinafter, another embodiment of the waste drying method according to the present invention will be described.

In the above description, the embodiment has been described in which the control unit receives the temperature data of the temperature sensor and controls (changes) the air supply amount and the air supply direction by the blower. However, Even in the case of applying the air supply correction step 400, the temperature of the inside of the main body 10 or the exhaust air is maintained within a certain range, and the moisture is uniformly distributed over the entire interior of the main body 10 , That is, superior effects over the prior art can be obtained.

Specifically, the waste drying apparatus of the present embodiment includes a main body 10 having a storage space for waste therein; An upper conduit 50 installed to supply air to the upper part of the inside of the main body 10 or to discharge air from the upper part; A lower conduit 60 for supplying air to the lower part of the inside of the main body 10 or for discharging air from the lower part thereof; A temperature sensor installed to measure the temperature of the inside of the main body 10 or the temperature of the air discharged to the outside from the inside thereof; A blower 20 installed to supply air to the inside of the main body 10 through the upper duct 50 or the lower duct 60; And a control unit for receiving the temperature data of the temperature sensor and controlling the air supply amount by the blower 20 so that the temperature of the inside of the main body 10 or the exhaust air is maintained within a predetermined range.

A method of drying the waste using the method is as follows (Fig. 7).

With respect to the control unit, the temperature lower limit value (T _LL ) Upper limit temperature (T _UL), temperature limit (T _DL), the initial air flow rate (F _i), change The air supply application time dt is set (100).

Starting the operation of the blower 20, and supplies the air for the initial air flow rate (F _i) with respect to the main body 10 (200).

The present temperature T _t measured by the temperature sensor is lower than the temperature lower limit T _LL and (300) whether it is within or outside of the upper temperature limit (T _UL ).

In the present temperature calculation step 300, when the current temperature T _t is calculated to be higher than the temperature upper limit value T _UL , the air supply amount by the blower 20 is increased (500).

In the current temperature calculation step 300, when the present temperature T _t is calculated to be lower than the temperature lower limit T _LL , the air supply amount by the blower 20 is reduced (600a).

In the current temperature calculation step 300, the current temperature T _t is determined as the temperature lower limit value T _LL and The amount of air supplied by the air supply increase step 500 or the amount of air supply reduced by the air supply reduction step 600a is changed to the changed air supply amount application time (T _UL ) dt) less time than, but continue to supply, changes in air supply application time (dt) for (dt / 2) is the temperature change over to supply air corresponding to the current air flow rate (F _t) temperature limit for (t _DL The current air supply amount F _t is continuously supplied and the current air supply amount F _t is increased or decreased when the temperature change amount exceeds the temperature change tolerance T _DL .

The concrete configuration and effect of each step are the same as those of the above-described embodiment.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is to be understood that both the technical idea and the technical spirit of the invention are included in the scope of the present invention.

10: main body 20: blower
21: air supply pipe 23: through hole
40: odor processor 50: upper pipe
51: upper main pipe 52: upper outside air suction pipe
60: lower duct 61: lower main pipe
61a: outer branch point 61b: inner branch point
62: lower blowing pipe 63: lower outside air suction pipe
64: bypass pipe 70: valve
100: Input variable setting step
110: Initial air supply condition input step
120: Initial air supply direction condition input step
200: Initial air supply start phase
210: change of air supply amount present time point input step
220: current temperature input step
230: Air supply downtime
300: Current temperature calculation step
400: air supply correction step
410: Calculation Needed Calculation Step
420: air supply increase correction step
421: Increase correction air supply application step
422: Current point input after air supply change
423: Air supply increase correction step
430: air supply reduction correction step
431: Reduction correction air supply application step
432: Current point input after air supply change
433: Air supply reduction correction step
440: Air Supply Stage Stage
500: step of increasing air supply
510: Increased air supply application phase
520: Current point input after air supply change
600: Air Supply Reduction and Direction Change Step
610: Changing the air supply direction Previous present point Input step
620: Air supply direction duration calculation step
630: step of maintaining or changing air supply direction
640: Reduced air supply application step
650: Entering the time of judging whether or not to terminate
660: Calculation of the termination air supply duration calculation
670: blower end phase
680: Current point input after air supply change
600a: Air Supply Reduction Phase
610a: Reduced air supply application phase
620a: Current point input after air supply change

Claims (18)

A main body 10 having a storage space for waste therein;
An upper conduit 50 for supplying air to the upper part of the inside of the body 10 or for discharging air from the upper part;
A lower duct 60 installed to supply air to the lower part of the inside of the main body 10 or to discharge air from the lower part thereof;
A temperature sensor installed to measure the temperature of the inside of the main body 10 or the temperature of air discharged to the outside from the inside thereof;
A blower (20) installed to supply air to the inside of the main body (10) through the upper duct (50) or the lower duct (60);
And a control unit for receiving the temperature data of the temperature sensor and controlling the amount of air supplied by the blower 20 so that the temperature of the inside of the main body 10 or the discharge air is maintained within a predetermined range, As a waste drying method,
(T _LL ), the temperature lower limit value Upper limit temperature (T _UL), temperature limit (T _DL), the initial air flow rate (F _i), change An input variable setting step (100) of setting an air supply amount application time (dt);
Starting the operation of the blower 20, the air initially supplied to start step 200 for supplying air to the to the initial air flow rate (F _i) with respect to the main body 10;
Wherein the current temperature (T _t ) measured by the temperature sensor is lower than the lower temperature limit (T _LL ) and A current temperature calculation step (300) for calculating whether the temperature is within a range of the upper temperature limit (T _UL ) or out of the range;
(500) for increasing the air supply amount by the blower (20) when the current temperature (T _t ) is calculated to be higher than the upper temperature limit (T _UL ) in the current temperature calculation step (300) );
In the current temperature calculation step 300, when the current temperature T _t is calculated to be lower than the temperature lower limit T _LL , an air supply reduction step 600a for reducing the air supply amount by the blower 20 );
In the current temperature calculation step 300, the current temperature T _t is lower than the temperature lower limit T _LL and (T _UL ), the air supply amount increased by the air supply increase step (500), or the air supply amount reduced by the air supply reduction step (600a) to the change air supply amount The supply of the air corresponding to the current air supply amount (F _t ) during the time (dt / 2) smaller than the changed air supply application time (dt) variation tolerance (T _DL) when the current continues to supply the air flow rate (F _t), the temperature change is the temperature change tolerance (T _DL) to the current increase correct the air flow rate (F _t) or decreased if it exceeds within An air supply correction step (400) of correcting and supplying air
≪ / RTI > The method according to claim 1,
The air supply correction step (400)
(T _{t + 1} ) measured by the temperature sensor while supplying air corresponding to the present air supply amount (F _t ) for a time (dt / 2) smaller than the changed air supply amount application time A correction necessity calculation step (410) for calculating whether a temperature variation amount, which is a difference value of a current temperature (T _t ) in the current temperature calculation step (300), is equal to or less than the temperature variation tolerance value (T _DL );
An air supply increase correction step (420) for increasing correction of the air supply amount by the blower (20) when the temperature change amount is larger than the (+) value of the temperature change tolerance value (T _DL );
An air supply reduction correction step (430) for reducing correction of the air supply amount by the blower (20) when the temperature change amount is smaller than (-) value of the temperature change tolerance value (T _DL );
The air supply amount when the temperature change amount is equal to or less than the temperature change tolerance value T _{DL in} the correction necessity calculation step 410, the air supply amount that is increased by the air supply increase correction step 420, An air supply sustaining step 440 for continuously supplying the air supply amount reduced by the correction step 430 during the changing air supply amount application time dt;
≪ / RTI > 3. The method of claim 2,
The input variable setting step (100)
Setting an initial air supply duration (t _m )
After the input parameter setting step 100, before the initial air supply start step 200,
Further comprising: an initial air supply condition input step (110) for inputting an initial air supply start time (t _s )
In the initial air supply start step 200,
Inputting a current time point (210) before changing the air supply amount to input the present time point (t _a ) before the air supply amount change;
The air flow rate changes before the current time point (t _a) and the initial air supply starting time point (t _s) of the air flow rate variation calculating a difference value, the difference value is larger than the initial air feed duration (t _m) of And a current temperature input step (220) for inputting a current temperature (T _t ) measured by the temperature sensor at _a previous present time point (t _a )
The current temperature calculation step (300)
_Wherein the operation is performed on the input current temperature (T _t ). The method of claim 3,
The input variable setting step (100)
Setting the air supply amount correction amount (F ₂ ) smaller than the air supply amount change amount (dF ₁ ) and the air supply amount change amount (dF ₁ )
The air supply increase correction step (420)
A new current air supply amount F _t obtained by adding the air supply amount correction amount F ₂ to the initial air supply amount F _i or the current air supply amount F _t is calculated and an increase correction air supply amount Application step 421;
A current time point input step (422) after the air supply amount change inputting the present time point (t _b ) after the air supply amount change by the increase correction air supply amount application step (421)
The air supply increase step (500)
A new current air supply amount F _{t obtained} by adding the air supply amount variation dF ₁ to the initial air supply amount F _i or the current air supply amount F _t is calculated and an increased air supply amount Step 510;
(520) after the air supply amount change inputting the current time (t _b ) after the air supply amount change by the increased air supply amount application step (510)
In the initial air supply start step 200,
Wherein the control unit calculates a difference between _a current time point t _b after the air supply amount change and a current time point t _a before the air supply amount change and calculates a difference between the air supply amount change time dt, Next, at a current time point (t _b ), a new air amount change previous point present input step (210) for inputting _a current point of time (t _a ) before a new air amount change;
And a current temperature input step (220) for inputting a current temperature (T _t ) measured by the temperature sensor at _a current time point (t _a ) before the new air supply amount change,
The current temperature calculation step (300)
_Wherein the operation is performed on the input current temperature (T _t ). 5. The method of claim 4,
The air supply increase correction step (420)
An air supply increase correction limiting step (423) for preventing the new current air supply amount (F _t ) from exceeding a predetermined maximum increase correction air supply amount
And drying the waste. The method of claim 3,
The input variable setting step (100)
Setting the air supply amount correction amount (F ₂ ) smaller than the air supply amount change amount (dF ₁ ) and the air supply amount change amount (dF ₁ )
The air supply reduction correction step (430)
A new current air supply amount F _t obtained by subtracting the air supply amount correction amount F ₂ from the initial air supply amount F _i or the current air supply amount F _t is calculated and a reduction correction air supply amount Application step 431;
And a current time point input step (432) after the air supply amount change inputting the current time point (t _b ) after the air supply amount change by the decrease correction air amount application step (431)
The air supply reduction step (600a)
A new current air supply amount F _{t obtained} by subtracting the air supply amount change amount dF ₁ from the initial air supply amount F _i or the current air supply amount F _t is calculated and a reduced air supply amount Step 610a;
And a current time input step (620a) after an air supply amount change inputting a current time (t _b ) after the air supply amount change by the reduced air supply amount applying step (610a)
In the initial air supply start step 200,
Wherein the control unit calculates a difference between _a current time point t _b after the air supply amount change and a current time point t _a before the air supply amount change and calculates a difference between the air supply amount change time dt, Next, at a current time point (t _b ), a new air amount change previous point present input step (210) for inputting _a current point of time (t _a ) before a new air amount change;
And a current temperature input step (220) for inputting a current temperature (T _t ) measured by the temperature sensor at _a current time point (t _a ) before the new air supply amount change,
The current temperature calculation step (300)
_Wherein the operation is performed on the input current temperature (T _t ). The method according to claim 6,
The air supply reduction correction step (430)
An air supply reduction correction limiting step (433) for preventing the new current air supply amount (F _t ) from being less than a preset minimum decrease correction air supply amount;
And drying the waste. A main body 10 having a storage space for waste therein;
An upper conduit 50 for supplying air to the upper part of the inside of the body 10 or for discharging air from the upper part;
A lower duct 60 installed to supply air to the lower part of the inside of the main body 10 or to discharge air from the lower part thereof;
A temperature sensor installed to measure the temperature of the inside of the main body 10 or the temperature of air discharged to the outside from the inside thereof;
A blower (20) installed to supply air to the inside of the main body (10) through the upper duct (50) or the lower duct (60);
And a control unit for receiving the temperature data of the temperature sensor and controlling the air supply amount and the air supply direction by the blower 20 so that the temperature of the inside of the main body 10 or the exhaust air is maintained within a certain range ,
The control unit supplies air to the inside of the main body 10 through the lower conduit 60 and discharges air from the inside of the main body 10 through the upper conduit 50 And a lower flow mode in which air is supplied to the inside of the main body 10 through the upper pipeline 50 and air is discharged from the inside of the main body 10 through the lower pipeline 60, A method for drying a waste using a waste drying apparatus for controlling an air supply direction by a drying unit (20)
(T _LL ), the temperature lower limit value Upper limit temperature (T _UL), temperature limit (T _DL), the initial air flow rate (F _i), change An input variable setting step (100) of setting an air supply amount application time (dt);
Starting the operation of the blower 20, the air initially supplied to start step 200 for supplying air to the to the initial air flow rate (F _i) with respect to the main body 10;
Wherein the current temperature (T _t ) measured by the temperature sensor is lower than the lower temperature limit (T _LL ) and A current temperature calculation step (300) for calculating whether the temperature is within a range of the upper temperature limit (T _UL ) or out of the range;
(500) for increasing the air supply amount by the blower (20) when the current temperature (T _t ) is calculated to be higher than the upper temperature limit (T _UL ) in the current temperature calculation step (300) );
In the present temperature calculation step 300, when the current temperature T _t is calculated to be lower than the temperature lower limit T _LL , the amount of air supplied by the blower 20 is reduced, An air supply reducing and changing direction (600) for changing the air supply direction when the direction continues for a predetermined time;
In the current temperature calculation step 300, the current temperature T _t is lower than the temperature lower limit T _LL and (T _UL ), the air supply amount increased by the air supply increase step (500), or the air supply amount reduced by the air supply reduction step (600a) to the change air supply amount The supply of the air corresponding to the current air supply amount (F _t ) during the time (dt / 2) smaller than the changed air supply application time (dt) variation tolerance (t _DL) when the current continues to supply the air flow rate (F _t), the temperature change is the temperature change tolerance (t _DL) to the current increase correct the air flow rate (F _t) or decreased if it exceeds within An air supply correction step (400) of correcting and supplying air
≪ / RTI > 9. The method of claim 8,
The air supply correction step (400)
(T _{t + 1} ) measured by the temperature sensor while supplying air corresponding to the present air supply amount (F _t ) for a time (dt / 2) smaller than the changed air supply amount application time A correction necessity calculation step (410) for calculating whether a temperature variation amount, which is a difference value of a current temperature (T _t ) in the current temperature calculation step (300), is equal to or less than the temperature variation tolerance value (T _DL );
An air supply increase correction step (420) for increasing correction of the air supply amount by the blower (20) when the temperature change amount is larger than the (+) value of the temperature change tolerance value (T _DL );
An air supply reduction correction step (430) for reducing correction of the air supply amount by the blower (20) when the temperature change amount is smaller than (-) value of the temperature change tolerance value (T _DL );
The air supply amount when the temperature change amount is equal to or less than the temperature change tolerance value T _{DL in} the correction necessity calculation step 410, the air supply amount that is increased by the air supply increase correction step 420, An air supply sustaining step 440 for continuously supplying the air supply amount reduced by the correction step 430 during the changing air supply amount application time dt;
≪ / RTI > 10. The method of claim 9,
The input variable setting step (100)
Setting an initial air supply duration (t _m )
After the input parameter setting step 100, before the initial air supply start step 200,
Further comprising: an initial air supply condition input step (110) for inputting an initial air supply start time (t _s )
In the initial air supply start step 200,
Inputting a current time point (210) before changing the air supply amount to input the present time point (t _a ) before the air supply amount change;
The air flow rate changes before the current time point (t _a) and the initial air supply starting time point (t _s) of the air flow rate variation calculating a difference value, the difference value is larger than the initial air feed duration (t _m) of And a current temperature input step (220) for inputting a current temperature (T _t ) measured by the temperature sensor at _a previous present time point (t _a )
The current temperature calculation step (300)
_Wherein the operation is performed on the input current temperature (T _t ). 11. The method of claim 10,
After the input parameter setting step 100, before the initial air supply start step 200,
An initial air supply direction condition input step 120 for inputting an initial air supply direction setting time point t _c and a current air supply direction H _t ;
And drying the waste. 12. The method of claim 11,
Wherein the temperature sensor comprises:
An upper temperature sensor installed to measure the temperature of the upper part of the inside of the main body 10 or the temperature of air discharged to the outside from the upper part thereof;
And a lower temperature sensor installed to measure the temperature of the lower part of the inside of the main body 10 or the temperature of air discharged to the outside from the lower part thereof,
The current temperature input step (220)
In the case of the upflow mode, the upper current temperature T _p measured by the upper temperature sensor is inputted,
Wherein in the case of the downflow mode, the lower current temperature (T _n ) measured by the lower temperature sensor is input. 10. The method of claim 9,
The input variable setting step (100)
Setting the air supply amount correction amount (F ₂ ) smaller than the air supply amount change amount (dF ₁ ) and the air supply amount change amount (dF ₁ )
The air supply increase correction step (420)
A new current air supply amount F _t obtained by adding the air supply amount correction amount F ₂ to the initial air supply amount F _i or the current air supply amount F _t is calculated and an increase correction air supply amount Application step 421;
A current time point input step (422) after the air supply amount change inputting the present time point (t _b ) after the air supply amount change by the increase correction air supply amount application step (421)
The air supply increase step (500)
A new current air supply amount F _{t obtained} by adding the air supply amount variation dF ₁ to the initial air supply amount F _i or the current air supply amount F _t is calculated and an increased air supply amount Step 510;
(520) after the air supply amount change inputting the current time (t _b ) after the air supply amount change by the increased air supply amount application step (510)
In the initial air supply start step 200,
Wherein the control unit calculates a difference between _a current time point t _b after the air supply amount change and a current time point t _a before the air supply amount change and calculates a difference between the air supply amount change time dt, Next, at a current time point (t _b ), a new air amount change previous point present input step (210) for inputting _a current point of time (t _a ) before a new air amount change;
And a current temperature input step (220) for inputting a current temperature (T _t ) measured by the temperature sensor at _a current time point (t _a ) before the new air supply amount change,
The current temperature calculation step (300)
_Wherein the operation is performed on the input current temperature (T _t ). 14. The method of claim 13,
The air supply increase correction step (420)
An air supply increase correction limiting step (423) for preventing the new current air supply amount (F _t ) from exceeding a predetermined maximum increase correction air supply amount
And drying the waste. 10. The method of claim 9,
The input variable setting step (100)
Further comprising the steps of: setting a termination reference air supply (F _e ), a termination reference air supply duration (t _f ), and an air supply direction application time ( _d H)
The air supply reduction and direction change step (600)
Inputting a current time point before changing the air supply direction to input the present time point t _d before the air supply direction change;
An air supply direction duration calculating step (620) of calculating a difference value between a present time t _d before the air supply direction change and the initial air supply direction setting time t _c ;
In the air supply direction sustain time calculation step, if the difference value is smaller than the air supply direction application time (dH), the air supply direction of the blower (20) is maintained as it is, (630) for changing the air supply direction of the blower (20) when the air supply direction is greater than or equal to the time (dH)
≪ / RTI > 16. The method of claim 15,
The input variable setting step (100)
Setting the air supply amount correction amount (F ₂ ) smaller than the air supply amount change amount (dF ₁ ) and the air supply amount change amount (dF ₁ )
The air supply reduction correction step (430)
A new current air supply amount F _t obtained by subtracting the air supply amount correction amount F ₂ from the initial air supply amount F _i or the current air supply amount F _t is calculated and a reduction correction air supply amount Application step 431;
And a current time point input step (432) after the air supply amount change inputting the current time point (t _b ) after the air supply amount change by the decrease correction air amount application step (431)
The air supply reduction and direction change step (600)
After the air supply direction maintenance or change step,
Reduced air flow rate applied computing a new current air flow rate (F _t) obtained by subtracting the air flow rate change (dF ₁₎ in the initial air flow rate (F _i) or the current air flow rate (F _t) and supplies the air equivalent (640);
An ending determination time input step (650) for inputting an ending determination time (t _e ) when the current air supply amount (F _t ) is less than or equal to the termination reference air supply amount (Fe);
An end reference air supply duration calculation step (660) of calculating a difference value between _a current time point (t _a ) before the air supply amount change and the end point determination time (t _e );
(670) terminating the blower (20) if the difference value is greater than or equal to the termination reference air supply duration (t _f ) in the termination reference air supply duration calculation step
≪ / RTI > 17. The method of claim 16,
The air supply reduction and direction change step (600)
If the current air supply amount (F _t ) is greater than the termination reference air supply amount (F _e ) or the difference value is less than the termination reference air supply duration (t _f ) A current time point inputting step (680) after the air supply amount change inputting the current time point t _b after the air supply amount change,
In the initial air supply start step 200,
Wherein the control unit calculates a difference between _a current time point t _b after the air supply amount change and a current time point t _a before the air supply amount change and calculates a difference between the air supply amount change time dt, Next, at a current time point (t _b ), a new air amount change previous point present input step (210) for inputting _a current point of time (t _a ) before a new air amount change;
And a current temperature input step (220) for inputting a current temperature (T _t ) measured by the temperature sensor at _a current time point (t _a ) before the new air supply amount change,
The current temperature calculation step (300)
_Wherein the operation is performed on the input current temperature (T _t ). 17. The method of claim 16,
The air supply reduction correction step (430)
An air supply reduction correction limiting step (433) for preventing the new current air supply amount (F _t ) from becoming less than a preset minimum decrease correction air supply amount;
And drying the waste.

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