KR101312398B1 - Drying system of large capacity industrial drier for energy saving - Google Patents

Abstract

PURPOSE: A drying system of a large capacity industrial drier for energy saving is provided to minimize energy consumption by introducing outdoor air after preheating the outdoor air using the waste heat of hot air exhausted to the outside. CONSTITUTION: A drying system of a large capacity industrial drier for energy saving comprises a waste heat exchange device (70), a circulation guide pipe (30), and a basket (10). An exhaust pipe (45) and an intake pipe (47) are installed in an outlet of a discharge pipe (42). The waste heat exchange device is installed in the exhaust pipe and the intake pipe. The heat exchange device heat-exchanges the heat of humid hot air exhausted through the exhaust pipe. Outdoor air introduced through the intake pipe is preheated by the waste heat exchange device and then is introduced into the circulation guide pipe. A front guide ring and a rear guide ring having a guide groove are installed in both ends of the basket. Guide rollers are installed in both sides of the front and rear guide rings to rotate the basket without additional rotary shaft. A basket rotating gear is arranged in the guide groove of the front guide ring to engage with a driving gear. The driving gear is rotated by a driving motor.

Description

DRYING SYSTEM OF LARGE CAPACITY INDUSTRIAL DRIER FOR ENERGY SAVING}

The present invention relates to a drying system of an energy-saving industrial large-capacity dryer, and in particular, to recycle and recycle most of the drying hot-air for the purpose of drying in a large-capacity industrial dryer, and to recover the waste heat of the partly exhausted hot exhaust air. By constructing a recycled energy-saving drying system, at the same time, it is possible to optimize the transfer automation of the dry goods by putting them into the basket forward and discharge them to the rear.

Generally, the laundry dryer market is divided into the domestic dryer market and the industrial dryer market, and the domestic dryer products are released as drum washing machines capable of processing washing, dehydration and drying at once, and drying-only products having only drying functions. Dryers are available in most cases with a drying function.

The industrial dryer market can be subdivided into small and large industries according to the maximum drying volume once. Dryers used for small industries process about 15 to 25 kg of dry matter in terms of throughput. Dryers used can process more than 50kg at a time, most are released in the form of 50kg, 100kg, 120kg type.

Small industrial dryers are mainly used in small laundries or coin-operated commercial laundries. Large industrial dryers are used for drying large laundries and industrial buildings.

In addition, most industrial dryers of large size (more than 120㎏) are imported and used, and domestic development is inadequate, and most of the imported products emphasize only drying speed, so energy saving technology is insufficient in imported products.

Looking at the prior art of the dryer provided in the country, Patent No. 501995 "Washing machine circulating drying apparatus and method thereof" is to wash the laundry by circulating the air by checking the humidity and temperature of the air circulated during the drying administration In order to improve the drying effect of the temperature sensor for measuring the drying air temperature inside the drum, humidity sensor for measuring the humidity of the air circulating circulating duct, between the temperature sensor and the humidity sensor on the air flow path Installed in the outside air circulation drying apparatus of the washing machine including a flow control means for selectively controlling the air flow circulated in the drum and the air flow flowing into the drum based on the signals measured by the humidity sensor and the temperature sensor Is disclosed.

However, it can be seen that Patent No. 501995 relates to a drum washing machine and to a drying process after the washing process of the drum washing machine is finished.

It selectively controls the air flow circulating inside the drum and the air flow introducing the outside air into the drum, and simultaneously measures the temperature and the humidity to optimize the humidity and temperature of the circulated dry air to improve the drying effect of the washing machine. However, when the used air is reused, a large amount of moisture is contained in the air, so it is evaporated with a dry heater in the circulation duct and then supplied to the drum to waste energy and inflow of external air. If this is done by heating it with a dry heater to a certain temperature, there is a problem that waste of energy occurs.

That is, the patent has a problem that the energy generated during washing, the energy consumption of the drying heater for optimizing the humidity and temperature of the air is largely generated.

As a means for solving such a problem, Patent No. 939866 "Drum Dryer" is disclosed.

According to the technical gist of the patent, a suction motor for sucking air in the dryer main body, a vent air duct connected to the suction motor, and a damper provided at one side wall of the discharge side of the vent air duct are connected to the vent air duct. A suction suction duct, a heater connected to the suction duct by a damper provided on the discharge side of the suction duct, a drum connected to the discharge side of the heater, a temperature sensor for controlling the temperature in the drum and humidity A drum type dryer comprising a humidity sensor and a controller for controlling all of the components, the drum type dryer comprising: a suction hole formed between one of the air duct and the suction duct and installed at one side of the heat recovery machine to allow natural fresh air to flow in; The air introduced from the suction hole heats up the heat recoverer and then reheats it with the heater and supplies it to the drum. One will.

However, in the case of the dryer, a means for exchanging heat of the exhausted hot air exhausted to the outside through a heat recovery device is proposed, but the heat exchange means is insufficient to expect a satisfactory energy saving effect.

The present invention constitutes a large-capacity dryer for the purpose of correcting all the conventional problems, while recovering the waste heat of the hot air exhausted to the outside, preheating the outside air sucked into the interior using the recovered heat to be sucked first By reducing the energy consumption to a minimum, the automation of the dry matter can be optimized by varying the means for discharging and discharging the dry matter, which are put into and discharged from the drum, that is, the basket.

As a means for solving the above problems, the present invention constitutes an inlet port on one side of the drum-shaped basket, the outlet of which is formed on the other side, and the outlet port is connected to the outlet port and the inlet port, and the inlet port is a steam heat exchanger. The exhaust port is equipped with a waste heat exchanger to absorb the heat of the exhausted hot air, and at the same time, the outside air to be sucked is preheated and then introduced into the circulating induction pipe so as to save energy due to the outside air heat. And, the basket is to be rotated by the rotating means without a separate axis of rotation to be put into the basket to the front, to be discharged to the rear.

The present invention constitutes an inlet on one side of the basket of the drum phenomenon through the through hole, and the outlet on the other side, the outlet and the inlet are connected to the circulation induction pipe, the inlet constitutes a steam heat exchanger, the waste outlet is installed waste heat exchanger It is possible to absorb the heat of the hot air exhausted by the exhaust air, and at the same time, the outside air to be sucked is preheated and then introduced into the circulating induction pipe, thereby saving energy due to the outside air heat, the basket is a recovery means without a separate rotating shaft It can be rotated by the, to put the drying material into the basket forward and discharged to the rear, to reduce the energy of the industrial large-capacity dryer operation, and at the same time automated system according to the conversion direction of the drying product There are effects such as being able to optimize.

1: Configuration diagram of the device of the present invention
2 is a perspective view of a basket used in the apparatus of the present invention
3: Rear perspective view of FIG. 2
4 is a side configuration diagram of FIG.
5 is a front configuration diagram of FIG.

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

1 is a configuration diagram of a drying system of a large-scale industrial dryer to be provided by the present invention, Figures 2 to 5 is a schematic view of the basket used in the present invention, the present invention is a large-capacity (120kg or more) of the industrial dryer It is possible to configure a drying system, but to optimize energy savings and automation.

The present invention comprises a basket (10) for inputting and drying a dry product, a circulation induction pipe (30), a steam heat exchanger (50), and a waste heat recovery device (70).

The basket 10 is configured in a drum shape through which the through-hole 11 is drilled, and the building is introduced through the front opening and closing door 12 and discharged through the rear opening and closing door 13.

A front guide ring 14 and a rear guide ring 15 are formed at both ends of the outer surface of the basket 10, and guide grooves 16 are formed at the front and rear guide rings 14 and 15, respectively. Guide rollers 17 are installed at both sides of the lower end of the groove 16 so that the basket 10 can be supported.

A basket rotary gear 18 is formed in the guide groove 16 of the front guide ring 14 so as to be geared with the drive gear 19 installed at the lower end, and the drive gear 19 is connected to the drive motor M. By rotating by the drive motor (M) and the guide roller 17, the basket 10 is rotated stably without a separate axis of rotation.

One side of the basket 10 constitutes an inlet tube 40 having an inlet 41, and the other side constitutes an outlet tube 42 having an outlet 43. The inlet tube 40 and the outlet tube 42 are It is connected through the circulation induction pipe (30).

A steam heat exchanger 50 is installed between the inlet pipe 40 and the circulation induction pipe 30, and a blower fan 52 and a filter 52 are installed in front of the steam heat exchanger 50.

The exhaust pipe 42 is provided with an exhaust pipe 45 having an exhaust port 44 and an intake pipe 47 having an inlet port 46. An exhaust fan 49 is provided with an exhaust pipe 45. Each intake fan 48 is constituted.

One side of the exhaust pipe 45 is provided with a heat exchanger 70 composed of a plurality of heater pipes 71, the heater pipe 71 by the support plate 72 for partitioning the exhaust pipe 45 and the intake pipe 47 To be supported, a portion of the heater pipe 71 is positioned in the exhaust pipe 45 and a portion is located in the intake pipe 47.

The exhaust air volume adjusting plate 73 is installed at the lower end of the support plate 72, and the exhaust air volume adjusting plate 73 is adjusted by a separate opening and closing means to circulate between the intake pipe 47 and the circulation induction pipe 30. The opening degree of the inlet port 32 and the exhaust port 44 of the exhaust pipe 45 is adjusted.

A diaphragm 77 is installed at the center of the intake pipe 47 so as to be divided into an intake preheat passage 74 and an intake passage 75, and an intake air direction adjusting plate 76 is installed at the top of the diaphragm 77 to intake preheat passage. The opening degree of the 74 and the intake passage 75 is adjusted.

The above-described exhaust air volume adjusting plate 73 and the intake air direction adjusting plate 76 are operated by an air cylinder (not shown) or an operating motor (not shown) installed outside, and hot air or circulation is discharged through the outlet 43. It is adjusted according to the temperature and humidity of the hot air circulating in the induction pipe 30.

In the drying system of the present invention configured as described above, the drying product is introduced into the basket 10, and the hot air heated in the steam heat exchanger 50 is circulated through the circulation induction pipe 30 to dry the drying product introduced into the basket 10. In addition, absorbing the heat of the exhausted hot air and then preheating the sucked external air to save energy is no different from the conventional.

However, the drying system of the present invention makes it possible to effectively preheat using waste heat recovery and waste heat through the waste heat exchange device 70 and at the same time to be suitable for a large-capacity industrial dryer, and forward the dry matter put into the basket 10 forward. It can be injected and discharged backwards, optimizing the automation system while saving energy.

That is, if the air circulating through the circulation induction pipe 30 through the blowing fan 51 is heated to the required temperature in the steam heat exchanger 50 and then blown to the inlet 41 of the inlet pipe 40 configured on one side Hot air is introduced into the interior through the through hole 11 opened in the basket 10, and the hot air introduced into the outlet includes moisture contained in the dry matter and is discharged from the discharge pipe 42 located on the other side through the through hole 11. The drying is dried by repetition of the means discharged to 43).

Since the hot air discharged to the discharge port 43 at the beginning of the drying process contains a lot of moisture, the wet hot air containing moisture toward the exhaust pipe 45 is adjusted by adjusting the position of the exhaust air volume adjusting plate 73 configured at the circulation inlet 32. This is exhausted to the outside, at this time exhausted by the exhaust action of the exhaust fan (49).

Since the hot air exhausted above contains hot heat, the heater pipe 71 is heated while exchanging heat to the heater pipe 71 installed in the waste heat exchanger 70 during the exhaust process.

The outside air flows into the inside through the intake pipe 47 as much as the amount of wet hot air containing moisture is exhausted through the exhaust pipe 45, and the outside air is mostly intake preheating passage 74 by the operation of the intake air direction adjusting plate 76. Inflow to the heater and passes through the intake preheat passage 74, the preheated contact with the heater pipe (71).

Since the preheated air is introduced into the steam heat exchanger 50 through the circulation inlet 32 and the circulation induction pipe 30, the heat energy required for heating the circulation hot air can be reduced.

After the initial drying operation, if the exhaust of the hot air containing moisture progresses to some extent, the exhaust port 44 of the exhaust pipe 45 is blocked by adjusting the exhaust wind direction adjusting plate 73, and circulated through the circulation induction pipe 30. The heat loss can be reduced, thus saving energy.

In particular, the basket 10 used in the present invention is provided with a front guide ring 14 and a rear guide ring 15 having guide grooves 16 formed on both sides thereof, and guided to the front and rear guide rings 14 and 15. Guide rollers 17 are supported on both sides of the groove 16 so that they can be rotated without a separate shaft.

As the rotation means of the basket 10, the drive gear 19 rotated by the drive motor M is gear-coupled with the basket rotary gear 18 formed in the guide groove 17 of the front guide ring 14. It is possible to rotate the basket 10 by the motor (M).

By allowing the basket 10 to be rotated by the guide roller 17 and the drive gear 19 as described above, the building is introduced into the basket 10 through the front opening and closing door 12, the rear Since it can be discharged to the rear through the opening and closing door 13, the building supply conveyor can be located on the front opening and closing door 12 side, the building discharge conveyor can be installed on the rear opening and closing door to optimize the automation of the transport of the building.

(10)-Basket (11)-Public
(12)-Front Door (13)-Rear Door
(14)-Front Guide Ring (15)-Rear Guide Ring
(16)-Guide Groove (17)-Guide Roller
(18)-Basket Rotary Gear (19)-Drive Gear
(30)-Circulation induction pipe (32)-Circulation inlet
(40)-inlet pipe (41)-inlet
(42)-Outlet (43)-Outlet
(44)-Exhaust System (45)-Exhaust Pipe
(46)-Intake vent (47)-Intake vent
(48)-Intake Fan (40)-Exhaust Fan
(50)-Steam Heat Exchanger (51)-Blowing Fan
(52)-Filter (70)-Waste Heat Exchanger
(71)-Heater Pipe (72)-Support Plate
(73)-Exhaust air flow control plate (74)-Intake preheat passage
(75)-Intake passage (76)-Intake wind direction control plate
(77)-Plate

Claims (2)

An inlet tube 40 having an inlet 41 formed on one side of the basket 10 is installed, and an outlet tube 42 having an outlet 43 formed on the other side thereof is circulated, and the inlet tube 40 and the outlet tube 42 are circulated. Connected to the induction pipe 30, and installed between the circulation induction pipe 30 and the inlet pipe 40, the blowing fan 51 and the steam heat exchanger 50, the hot air heated in the steam heat exchanger (50) Through the blower fan 51, the basket 10 is discharged to the diesel oil discharge pipe 42, and the high-capacity industrial dryer is allowed to dry the drying product while being circulated into the basket 10 through the circulation induction pipe 30 again. In constructing the drying system, an exhaust pipe 45 and an intake pipe 47 are installed at the outlet of the discharge pipe 42, and a waste heat exchange device 70 is installed at the exhaust pipe 42 and the intake pipe 47, and the exhaust pipe ( The heat of the humid hot air exhausted through the 45) is exchanged in the waste heat exchange device 70, and the outdoor air sucked through the intake pipe 47 is waste heat exchanged. It is preheated through the device 70 and then introduced into the circulation guide pipe 30, and the front guide ring 14 and the rear guide ring 15 formed with guide grooves 16 are formed at both ends of the basket 10. The guide rollers 17 are installed at both sides of each of the guide rings 14 and 15 to allow the basket 10 to be rotated without a separate rotation shaft, and a basket rotating gear is formed in the guide groove 16 of the front guide ring 14. And a drive gear (19), wherein the drive gear (19) is rotated by a drive motor (M). According to claim 1, wherein the diaphragm 72 is provided on the inner surface of the intake pipe 47 so that the circulation inlet 32 is formed between the discharge pipe 42 and the circulation induction pipe 30, and the circulation inlet 32 Drying system of energy-saving large-capacity industrial dryer, characterized in that the exhaust air volume control plate 73 is installed so that the amount of hot air flow to the exhaust pipe 45 and the circulation induction pipe 30 can be adjusted.

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