KR20170033109A - Drying apparatus using ultra-high-temperature heat including steam generator - Google Patents

Drying apparatus using ultra-high-temperature heat including steam generator Download PDF

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Publication number
KR20170033109A
KR20170033109A KR1020150131011A KR20150131011A KR20170033109A KR 20170033109 A KR20170033109 A KR 20170033109A KR 1020150131011 A KR1020150131011 A KR 1020150131011A KR 20150131011 A KR20150131011 A KR 20150131011A KR 20170033109 A KR20170033109 A KR 20170033109A
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KR
South Korea
Prior art keywords
hot air
drying
unit
water tank
supply pipe
Prior art date
Application number
KR1020150131011A
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Korean (ko)
Inventor
안정준
김태규
Original Assignee
주식회사 엔이티
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Priority to KR1020150131011A priority Critical patent/KR20170033109A/en
Publication of KR20170033109A publication Critical patent/KR20170033109A/en

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    • B09B3/0091—
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10—Adaptations for driving, or combinations with, electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/003—Supply-air or gas filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/005—Drying-steam generating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/10—Temperature; Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements

Abstract

The present invention relates to a burner (10) for generating an ultra-high-temperature and high-speed hot air for processing an object to be dried by using heat at a high temperature, a drying object inlet (50) for supplying an object to be dried, A primary drying unit 20 for primary drying by an ultra-high temperature and high-speed hot air generated by the burner 10 while moving an object to be dried introduced from the primary drying unit 20, A discharge unit 40 for discharging the object to be dried and a secondary drying unit 30 for drying the secondary drying unit 30 between the burner 10 and the primary drying unit 20, A high-temperature drying system having a hot air supply pipe (60) for transferring hot air at an ultra-high temperature and a high speed, the system comprising: a steam generator (100) generating electricity by steam; And a second drying section ( A boiler water tank 80 configured to pass through a hot air discharge unit 75 for passing hot air discharged through the boiler water tank 30 to a dust collecting facility connection pipe 70, And a steam supply pipe (110) for supplying the steam generated in the boiler water tank (80) to the steam generator (100).

Figure P1020150131011

Description

TECHNICAL FIELD [0001] The present invention relates to an ultra-high temperature drying apparatus having a steam generator,

The present invention relates to an ultra-high temperature drying apparatus, and more particularly, to an ultra-high temperature drying apparatus which can improve the durability of a hot air supply pipe supplying ultra-high temperature hot air to a drying unit while generating electric power through steam power generation, Drying apparatus.

As a device for treating wastes with a high water content such as sewage sludge and food waste, a drying device using ultra-hot hot air has been developed. As an example of such a device, Korean Patent Registration No. 10-0894899 discloses a burner for forming hot air at a high temperature / high speed to treat waste by using heat at a high temperature and a waste supply portion for transferring the waste, A secondary drying unit which forms a primary drying unit provided so that the sprayed waste can be dried while being moved by high temperature / high speed hot wind generated from the burner, and drying the waste having passed through the primary drying unit again; And an outlet for discharging the waste that has passed through the drying section.

In such an ultra-high temperature drying system, a hot-air supply pipe for supplying super-high-temperature and high-speed hot air of about 1,200 ° C. to 5,000 ° C. generated in the burner to the primary drying unit is not able to withstand long-

It is desired to develop a new ultra-high temperature drying apparatus which does not seriously affect the durability of the hot air supply pipe.

Korean Patent No. 10-0894899

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a steam generator which can generate electric power through steam power generation while improving durability of a hot air supply pipe for supplying ultra- And an object of the present invention is to provide an ultra-high temperature drying apparatus having a high-temperature drying apparatus.

In order to achieve the above object, an ultra-high temperature drying apparatus having a steam generator according to the present invention includes a burner (10) for generating hot air at an ultra-high temperature and a high speed to process an object to be dried by using heat at a high temperature, A primary drying unit 50 for primary drying by hot air of high temperature and high speed generated by the burner 10 while moving the drying object introduced from the drying object input port 50 20), a secondary drying unit (30) for secondary drying while moving the drying object passing through the primary drying unit (20), a discharge unit (40) for discharging the drying object from the secondary drying unit And a hot air supply pipe (60) for transferring hot air at an ultra-high temperature and at a high speed between the burner (10) and the primary drying unit (20), wherein the steam generator (100) Wow; And the hot air discharged through the secondary drying unit 30 is conveyed to the dust collecting facility connecting pipe 70 at the upper part of the inside thereof through the burner side part of the hot air supply pipe 60 A boiler water tank (80) configured to pass through the hot air discharge part (75) passing through the hot water discharge part (75); And a steam supply pipe 110 connected to the upper portion of the boiler water tank 80 to supply the steam generated in the boiler water tank 80 to the steam generator 100.

Here, the hot air discharge unit 75 may include a plurality of densely packed pipes and may be arranged to pass through the upper portion of the boiler water tank 80.

A water level sensor 94 for detecting the level of water in the water tank is installed in the boiler water tank 80. A water supply pipe 90 for supplying water to the boiler water tank 80 is connected to the dust collecting facility connecting pipe 70, And a solenoid valve 92 is installed in the middle of the boiler water tank 80 to control opening and closing of the solenoid valve 92 according to a detection signal of the water level sensor 94, It is preferable that the water level in the water tank 80 is configured to be maintained within a certain range.

In the ultra-high temperature drying apparatus having the steam generator according to the present invention, the primary drying portion side portion 62 of the hot air supply pipe 60 is connected to the inside of the burner 10 and the primary drying portion 20 And an outer tube 62b which is disposed in the form of wrapping the inner tube 62a and closed on the side of the burner 10 and on the side of the primary drying section 20, A blowing motor 120 and a blowing pipe 130 for supplying blowing air generated from the blowing motor 120 to a blowing supply space 62c between the inner pipe 62a and the outer pipe 62b of the hot air supply pipe 60 ) May be further included.

In addition, the ultra-high temperature drying apparatus having the steam generator according to the present invention may further include a blowing motor driving circuit unit 170 for driving the blowing motor 120, a key input unit (not shown) for inputting the moisture content And a control circuit unit 160 for outputting a control signal for controlling the rotational speed of the blowing motor 170 to the blowing motor driving circuit unit 170 according to a moisture content inputted from the key input unit 150 .

In addition, the ultra-high temperature drying apparatus having the steam generator according to the present invention may further include a blowing motor driving circuit unit 170 for driving the blowing motor 120, a temperature sensing unit 160 for sensing the internal temperature of the primary drying unit 20, A sensor 14 and a control signal for controlling the rotational speed of the blowing motor 170 according to an internal temperature of the primary drying unit 20 inputted from the temperature sensor 140, And outputting the control signal to the control circuit 160. [

According to the present invention configured as described above, the burner side portion of the hot air supply pipe for transferring the ultra-high-temperature and high-speed hot air between the burner and the primary drying portion passes through the water tank of the boiler to cool the hot air supply pipe, The problem of durability such as warping can be solved.

In addition, the hot air supplied through the hot air supply pipe passes through the primary drying unit and the secondary drying unit to pass the hot air discharge pipe to the dust collecting equipment through the water tank of the boiler, and the water in the water tank of the boiler is primarily heated And then the steam is generated by the hot air discharge pipe incidentally to generate steam. By supplying the generated steam to the steam generator, power can be generated by steam power generation. This can solve the problem of durability such as warp caused by overheating of the hot air supply pipe, and also has an effect of collecting electricity by producing steam by steam power generation.

The first drying section of the hot air supply pipe for transferring the hot air at an extremely high temperature and the high speed between the burner and the first drying section is constituted by a double tube, blowing air between the inner tube and the outer tube by a blowing motor, It is possible to solve the problem of durability such as warping due to overheating of the hot air supply pipe by cooling the primary drying portion side portion. In addition, the front end of the primary drying section adjacent to the hot air supply tube is also cooled, thereby improving the durability of the front end of the primary drying section.

In addition, by controlling the amount of blowing generated by the blowing motor in accordance with the water content of the object to be dried, the amount of hot air flowing into the drying unit is controlled, thereby achieving efficient drying performance of the object to be dried.

In addition, by controlling the amount of blowing generated by the blowing motor in accordance with the temperature in the primary drying unit, the amount of hot air flowing into the drying unit can be controlled to achieve an efficient drying performance for the drying object.

FIG. 1 is a view showing a schematic configuration of an ultra-high temperature drying apparatus having a steam generator according to a first embodiment of the present invention.
Fig. 2 is a sectional view of the boiler interior taken along the line "A" in Fig.
Fig. 3 is a sectional view of the boiler interior taken along the line "B" in Fig.
Fig. 4 is a cross-sectional view of the boiler after cutting at point "C" in Fig.
FIG. 5 is a view showing a schematic configuration of an ultra-high temperature drying apparatus having a steam generator according to a second embodiment of the present invention.
Fig. 6 is a cross-sectional view of the boiler taken along the line "C" in Fig.
Fig. 7 is a view schematically showing a cross-sectional shape of the hot air supply pipe taken along the line "C" in Fig. 5. Fig.
8 is a block diagram showing a control circuit configuration of an ultra-high temperature drying apparatus having a steam generator according to a second embodiment of the present invention.

Hereinafter, an ultra-high temperature drying apparatus having a steam generator according to the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

FIG. 1 is a view showing a schematic structure of an ultra-high temperature drying apparatus having a steam generator according to a first embodiment of the present invention. FIG. 2 is a sectional view of the boiler interior taken along the line "A" 3 is a sectional view of the boiler taken along the line "B" in FIG. 1, and FIG. 4 is a cross-sectional view of the boiler taken along the line "C" in FIG.

As shown in these drawings, the ultra-high temperature drying apparatus having the steam generator according to the present embodiment includes a burner 10, a drying object input port 50, a primary drying unit 20, a secondary drying unit 30 A hot air supply pipe 60, a boiler water tank 80, a hot air discharge unit 75, a dust collecting facility connection pipe 70, a water supply pipe 90, a steam supply pipe 110, a steam generator 100 ).

The burner 10 is configured to generate and output an ultra-high temperature hot air of 1,200 ° C to 5,000 ° C at high speed.

The drying object input port 50 is a structure for inputting a drying object having a high water content, such as, for example, sewage sludge collected in a sewer or food waste collected in a general household or a food factory.

The primary drying unit 20 moves the drying object introduced through the drying object input port 50 in the direction of blue arrow in FIG. 1 while rotating, for example, while moving the ultra-high temperature and high-speed hot wind generated by the burner 10 As shown in Fig.

The secondary drying unit 30 is configured to primarily dry while being rotated in the primary drying unit 20, and to secondarily dry the transferred drying object while moving in a blue arrow direction in FIG.

The discharge unit 40 is configured to discharge an object to be dried having a water content of about 4 to 5%, which has passed through the secondary drying unit 30. In the ultra-high temperature drying apparatus of the present invention, the water content of the sewage sludge is dried to about 4 to 5%, and it is confirmed that the self-heating amount of the dried sewage sludge has 4,500 to 4,800 calories. Therefore, the ultra-high temperature drying apparatus of the present invention can recycle sewage sludge to be used as fuel.

The hot air supply pipe 60 is disposed between the burner 10 and the primary drying unit 20 and transfers the hot air of 1,200 ° C. to 5,000 ° C. generated in the burner 10 to the primary drying unit 20. .

The boiler water tank 80 is filled with water and passes through the burner side portion of the hot air supply pipe 60 at the inner lower portion thereof and is provided with an exhaust gas discharged via the secondary drying portion 30 And a hot air discharging portion 75 for transmitting hot air to the dust collecting facility connecting pipe 70 is passed through. Therefore, the water in the boiler water tank 80 is primarily heated by the hot air supply pipe 60 through which the hot air of 1,200 ° C. to 5,000 ° C. generated by the burner 10 passes, and is heated to 200 ° C. to 250 ° C. The hot air containing the exhaust gas of the exhaust gas is secondarily heated by the hot air discharge portion 75 to generate a large amount of steam.

Since the burner side portion of the hot air supply pipe 60 is provided so as to pass through the boiler water tank 80, the hot air supply pipe 60 is partially cooled by the water in the boiler water tank 80 and durability The problem can be prevented to some extent.

The hot air discharge unit 75 is composed of a plurality of closely packed pipes and is disposed so as to pass through the upper part of the boiler water tank 80. The dust collecting equipment connection pipe 70 is connected to the hot air discharge unit 75, The hot air at about 200 ° C to 250 ° C containing the gas is delivered to the dust collector.

The water supply pipe 90 is connected to the boiler water tank 80 via the dust collecting equipment connection pipe 70 so that water heated to some extent by the hot air of about 200 ° C. to 250 ° C. containing the exhaust gas is supplied to the boiler water tank 80. And a solenoid valve 92 is provided in the middle thereof. The boiler water tank 80 is provided with a water level sensor 94 for sensing the water level in the water tank and controls the opening and closing of the solenoid valve 92 according to the detection signal of the water level sensor 94, The water level can be kept within a certain range.

The steam supply pipe 110 is connected to the upper portion of the boiler water tank 80 to supply the steam generated in the boiler water tank 80 to the steam generator 100. The steam generator 100 is supplied with steam generated in the boiler water tank Development.

In the ultra-high temperature dryer equipped with the steam generator according to the first embodiment of the present invention, the hot air at 1,200 ° C to 5,000 ° C generated in the burner 10 is directed in the direction of the red arrow in FIG. 1, Is discharged to the dust collecting facility connecting pipe (70) through the hot air supply pipe (60), the primary drying unit (20), the secondary drying unit (30) and the hot air discharge unit (75). The water in the boiler water tank 80 is boiled to generate steam, and the object to be dried is first dried and then secondarily dried. Thereafter, the water in the boiler water tank 80 is heated again, 70, respectively.

Therefore, according to the present embodiment, the burner side portion of the hot air supply pipe for transferring the hot air at ultra-high temperature and high speed between the burner and the primary drying portion passes through the water tank of the boiler to cool the hot air supply pipe, And the like can be solved. In addition, the hot air supplied through the hot air supply pipe passes through the primary drying unit and the secondary drying unit to pass the hot air discharge pipe to the dust collecting equipment through the water tank of the boiler, and the water in the water tank of the boiler is primarily heated And then the steam is generated by the hot air discharge pipe incidentally to generate steam. By supplying the generated steam to the steam generator, power can be generated by steam power generation. This can solve the problem of durability such as bending due to the overheating of the hot air supply pipe, and also can obtain the effect of obtaining the electric power by steam power generation.

Next, an ultra-high temperature drying apparatus having a steam generator according to a second embodiment of the present invention will be described.

FIG. 5 is a view showing a schematic configuration of an ultra-high temperature drying apparatus having a steam generator according to a second embodiment of the present invention, FIG. 6 is a sectional view of the boiler after cutting at a point "C" And Fig. 7 is a view schematically showing a sectional shape of the hot air supply pipe taken along the line "C" in Fig. Here, the cross-sectional shape taken along the line A in Fig. 5 is the same as that in Fig. 2, and the cross-sectional view taken along line B in Fig. 5 is the same as Fig.

In this embodiment, the same reference numerals are given to the same constituent elements as those of the embodiment shown in FIGS. 1 to 4, and a detailed description thereof will be omitted. In addition, since the operation and effect according to the first embodiment described above are accomplished in the same manner, a detailed description thereof will be omitted.

In this embodiment, the primary drying portion side portion 62 of the hot air supply pipe 60 for transferring the hot air of the super high temperature and the high speed between the burner 10 and the primary drying portion 20 is constituted by a double tube, A blowing motor 120 blows air between the outer tube 62a and the outer tube 62b to cool the first drying portion side portion 62 of the hot air supply tube 60 and to prevent the hot air supply tube 60 from being bent The durability problem can be solved additionally. In addition, the front end of the primary drying unit 20 adjacent to the hot air supply pipe 60 is also cooled, thereby improving the durability of the front end of the primary drying unit 20.

The primary drying portion side portion 62 of the hot air supply pipe 60 includes an inner pipe 62a communicated between the burner 10 and the primary drying portion 20 and an inner pipe 62a surrounding the inner pipe 62a And the burner 10 is blocked by the blocking portion and the primary drying portion 20 is composed of the outer tube 62b which is opened.

The air blowing motor 120 sucks outside air and blows air between the inner tube 62a and the outer tube 62b constituting the primary drying portion side portion 62 of the hot air supply tube 60 through the blowing tube 130 And is configured to inject outside air into the supply space 62c.

In FIG. 5, reference numeral 140 denotes a temperature sensor for sensing the temperature inside the primary drying unit 20.

Next, a control operation of the ultra-high temperature drying apparatus having the steam generator according to the second embodiment of the present invention will be described with reference to FIG.

8 is a block diagram showing a control circuit configuration of an ultra-high temperature drying apparatus having a steam generator according to a second embodiment of the present invention.

The water level sensor 94 senses the water level in the boiler water tank 80 and the temperature sensor 140 senses the internal temperature of the primary drying unit 20.

The blowing motor driving circuit unit 170 drives the blowing motor 120 under the control of the control circuit unit 160 to adjust the blowing amount generated and output by the blowing motor 120. That is, the blowing amount supplied to the air supply space 62c between the inner tube 62a and the outer tube 62b constituting the primary drying portion side portion 62 of the hot air supply tube 60 is adjusted.

The key input unit 150 has a function of inputting and registering the moisture content of the object to be dried, which is input into the object to be dried 50, and the display unit 180 displays the display items under the control of the control circuit unit 160.

The control circuit unit 160 controls the solenoid valve driving unit 190 in accordance with the level sensing signal in the boiler water tank 80 inputted from the water level sensor 94 so that the solenoid valve 92 is driven to open and close, And controls the supply and blocking of water supplied to the boiler water tank 80. Accordingly, the water in the boiler water tank 80 is maintained at a level within a certain range.

In addition, when the water content of the object to be dried is inputted from the key input unit 150 and registered, the control circuit unit 160 controls the display unit 180 to display the water content of the object to be dried, So as to drive the blowing motor 120 in accordance with the water content of the object to be dried.

For example, when the water content of the object to be dried is 75% or less, the blowing motor 120 is driven at an ultra-high speed so as to maximize the amount of air blown into the air supply space 62c of the hot air supply pipe 60, To 80%, the blowing motor 120 is driven at a high speed so that the amount of air blown into the air supply space 62c of the hot air supply pipe 60 is large, and the moisture content of the object to be dried is 80% to 85% The air blowing motor 120 is driven at a medium speed so that the air blowing amount supplied to the blowing air supply space 62c of the hot air supply pipe 60 is medium and when the moisture content of the object to be dried is 85% 120) is driven at a low speed so that the blowing amount supplied to the blowing supply space 62c of the hot air supply pipe 60 is small. When the moisture content of the object to be dried is 95% or more, the blowing motor 120 is driven at the lowest speed Hot air ball It is possible to supply the smallest amount of blowing air supplied to the air supply space 62c of the supply pipe 60. This is because when the moisture content of the object to be dried is low, the cold air is supplied to the primary drying unit 20 through the hot air supply pipe 60 by the air blowing motor 120 so that the drying object is dried and overcharged If the water content of the object to be dried is high, the cold air is supplied to the primary drying unit 20 through the hot air supply pipe 60 by the air blowing motor 120 so that the drying air is insufficiently dried Can be prevented.

The control circuit unit 160 controls the blowing motor driving circuit unit 170 according to the internal sensed temperature of the primary drying furnace 20 inputted from the temperature sensor 140 to control the rotational speed of the blowing motor 120 .

That is, when the internal detection temperature of the primary drying furnace 20 is 900 ° C or higher, the blowing motor 120 is driven at an extremely high speed to maximize the amount of air blown into the air supply space 62c of the hot air supply pipe 60, The blowing motor 120 is driven at a high speed so that the amount of air blown into the air supply space 62c of the hot air supply pipe 60 is increased to a high degree when the internal detection temperature of the car dryer 20 is 850 to 900 ° C., If the internal detection temperature of the primary drying furnace 20 is 800 ° C. to 850 ° C., the blowing motor 120 is driven at a medium speed so that the amount of air blown into the air supply space 62 c of the hot air supply pipe 60 is medium If the internal sensing temperature of the primary drying furnace 20 is in the range of 750 ° C. to 880 ° C., the blowing motor 120 is driven at low speed so that the blowing amount supplied to the blowing supply space 62 c of the hot air supply pipe 60 becomes small And when the internal detection temperature of the primary drying furnace 20 is 700 ° C. to 750 ° C., the blowing motor 120 ) At the lowest speed to supply the smallest amount of blowing air supplied to the blowing air supply space 62c of the hot air supply pipe 60.

The blowing air supplied to the air supply space 62c of the hot air supply pipe 60 absorbs the heat of the inner pipe 62a and the outer pipe 62b of the hot air supply pipe 60 and flows into the primary drying furnace 20 Thereby contributing to the drying of the object to be dried. Therefore, the drying efficiency of the object to be dried can be improved while preventing the durability problem such as the bending phenomenon due to the overheating of the inner pipe 62a and the outer pipe 62b of the hot air supply pipe 60. In addition, the front end of the primary drying unit 20 adjacent to the hot air supply pipe 60 is also cooled, thereby improving the durability of the front end of the primary drying unit.

In addition, by controlling the amount of air blown into the air supply space 62c of the hot air supply pipe 60 in accordance with the water content of the object to be dried, it is possible to achieve efficient drying performance of the object to be dried.

Also, by controlling the amount of air blown into the air supply space 62c of the hot air supply pipe 60 in accordance with the internal temperature of the primary drying unit, it is possible to achieve efficient drying performance of the object to be dried.

The present invention is not limited to the above-described specific embodiments, and various modifications and changes may be made without departing from the gist of the present invention. It will be obvious that such modifications and variations are included in the appended claims.

10: burner 20: primary drying section
30: Secondary drying unit 40:
50: Drying object input part 60: Hot air supply pipe
62: primary drying portion side of hot air supply pipe
62a: inner tube 62b: outer tube
62c: Air supply space 70: Dust collector connection pipe
75: Hot air discharge part 80: Boiler water tank
90: Water pipe 92: Solenoid valve
94: Level sensor 100: Stept generator
110: steam supply pipe 120: blowing motor
130: blowing pipe 140: temperature sensor
150: key input unit 160:
170: blower motor drive circuit 180: display
190: Solenoid valve driving part

Claims (6)

A burner 10 for generating hot air at an extremely high temperature and a high speed in order to treat the object to be dried by using high temperature heat, a drying object input port 50 for supplying an object to be dried, A primary drying unit (20) for primary drying by an ultra-high temperature and high-speed hot air generated by the burner (10) while moving an object, a secondary drying unit A discharge unit 40 for discharging the drying object from the secondary drying unit 30 and a discharge unit 40 for discharging the drying object from the burner 10 and the primary drying unit 20, In an ultra-high temperature drying system having a hot air supply pipe (60) for transferring hot air,
A steam generator 100 which is generated by steam,
And the hot air discharged through the secondary drying unit 30 is conveyed to the dust collecting facility connecting pipe 70 at the upper part of the inside thereof through the burner side part of the hot air supply pipe 60 A boiler water tank 80 configured to pass through the hot air discharge unit 75,
And a steam supply pipe (110) connected to an upper portion of the boiler water tank (80) to supply steam generated in the boiler water tank (80) to the steam generator (100) Drying device. The method according to claim 1,
Wherein the hot air discharge part (75) is composed of a plurality of closely packed pipes and is arranged to penetrate the upper part of the boiler water tank (80). 3. The method according to claim 1 or 2,
In the boiler water tank 80, a water level sensor 94 for detecting the water level in the water tank is installed,
A water supply pipe 90 for supplying water to the boiler water tank 80 is connected to the upper part of the boiler water tank 80 via the dust collecting equipment connection pipe 70 and a solenoid valve 92 is installed in the middle thereof , And controls the opening and closing of the solenoid valve (92) according to a sensing signal of the water level sensor (94) to maintain the water level in the boiler water tank (80) within a certain range. . The method of claim 3,
The primary drying portion side portion 62 of the hot air supply pipe 60 includes an inner pipe 62a communicated between the burner 10 and the primary drying portion 20 and an inner pipe 62a surrounding the inner pipe 62a , The burner (10) is closed and the primary drying part (20) is composed of an outer tube (62b)
An air blowing motor 120 for blowing air and a blowing air generated from the blowing motor 120 to the air supply space 62c between the inner pipe 62a and the outer pipe 62b of the hot air supply pipe 60 Further comprising a blowing pipe (130). 5. The method of claim 4,
A blowing motor driving circuit unit 170 for driving the blowing motor 120,
A key input unit 150 for inputting the moisture content (moisture content) of the object to be dried,
And a control circuit unit 160 for outputting a control signal for controlling the rotational speed of the blowing motor 170 to the blowing motor driving circuit unit 170 according to the water content inputted from the key input unit 150 Lt; / RTI > 5. The method of claim 4,
A blowing motor driving circuit unit 170 for driving the blowing motor 120,
A temperature sensor 14 for sensing the internal temperature of the primary drying unit 20,
A control circuit for outputting a control signal for controlling the rotational speed of the blowing motor 170 to the blowing motor driving circuit unit 170 according to an internal temperature of the primary drying unit 20 inputted from the temperature sensor 140; (160). ≪ / RTI >
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109763445A (en) * 2017-12-31 2019-05-17 田大志 A kind of hot-blast spray nozzle swing pipe and the hot-blast spray nozzle with the structure
KR102227733B1 (en) * 2020-02-07 2021-03-12 주식회사 에스이테크 Apparatus for drying ultra-high temperature

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100894899B1 (en) 2008-09-08 2009-04-30 김창준 Ultra-high-temperature heat using dryness system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100894899B1 (en) 2008-09-08 2009-04-30 김창준 Ultra-high-temperature heat using dryness system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109763445A (en) * 2017-12-31 2019-05-17 田大志 A kind of hot-blast spray nozzle swing pipe and the hot-blast spray nozzle with the structure
CN109763445B (en) * 2017-12-31 2020-12-15 南京溧水高新创业投资管理有限公司 Swing pipe for hot air nozzle and hot air nozzle with structure
KR102227733B1 (en) * 2020-02-07 2021-03-12 주식회사 에스이테크 Apparatus for drying ultra-high temperature

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