KR101002759B1 - Green dryer having a regenerative thermal oxidation incorporated with hot air generator - Google Patents

Abstract

The present invention relates to a drying apparatus having a regenerative combustor combined with a hot air generation, and a high-temperature combustion (800) of a harmful gas generated during the drying process of a dry matter such as a coating, printed matter, adhesive, etc., which generates volatile organic compounds during drying. At the same time as it is purified, and recovers the heat of the purified air discharged from the regenerative combustion machine and supplies it back to the drying chamber to save energy, while maintaining the harmful gas concentration in the furnace (ie drying furnace) much lower than the LEL standard. It can be reduced to less than half compared to the existing furnace, which can increase the energy efficiency and reduce the equipment cost and space that was required for the separate noxious gas treatment facility. Heat storage generator combined with a hot air generator to reduce installation space The purpose to provide a drying apparatus environment.

Drying apparatus of the present invention for achieving the above object is a drying chamber to which the dried object is put; A heat storage combustor connected to the drying chamber; A mixing room connected to the drying chamber by a closed circuit while being connected through a duct to supply hot air from the combustion chamber of the heat storage combustor; And a hot air connected between the drying chamber and the mixing room to suck the hot air of the drying chamber into the mixing room to mix the hot air of the drying chamber and the hot air of the combustion chamber of the heat storage combustor in the mixing room to be supplied to the drying chamber again. It is comprised including a circulation blower.

Drying Room, Heat Storage Combustor, Mixing Room, Hot Air Generator, Heat Exchanger

Description

Eco-Friendly Drying Equipment with Regenerative Combustor Combined with Hot Air Generator {GREEN DRYER HAVING A REGENERATIVE THERMAL OXIDATION INCORPORATED WITH HOT AIR GENERATOR}

The present invention relates to a drying apparatus having a heat accumulator combined with a hot wind generator, and more particularly, by adopting a method integrating a hot air generator and a heat accumulator, a volatile organic compound generated during drying and drying of a product (car body, etc.) The present invention relates to an environment-friendly drying apparatus having a regenerative combustion device for a combined use of a hot air generator, which can improve the use efficiency of energy required to remove VOC) and reduce installation space.

Drying apparatuses are used for various processes such as painting, bonding, and printing. Such a drying apparatus is generally composed of a structure having a hot air supply for supplying heated air into the drying chamber, and dried by applying heat while passing the paint-coated or adhesive-coated dry matter, printed dry matter, and the like into the drying chamber. .

At this time, a volatile organic compound (VOC) is generated, and a regenerative thermal oxidation (RTO) is used as a means for burning and removing such a volatile organic compound (VOC). The heat storage combustor (RTO) has a structure in which the harmful gas introduced is preheated through an internal heat storage layer and then burned at a high temperature of 800 ° C. or higher using a burner in a combustion chamber, and is highly purified to approximately 98% or more and then exhausted.

However, the conventional heat storage combustor has a high height structure in which the heat storage layer and the combustion chamber are arranged in the vertical direction, and thus, it is difficult to directly mount it on the lower part or the upper part of the drying chamber. Accordingly, a separate high device space for installing the heat storage burner, there was a problem that takes a lot of facility costs.

In addition, in the related art, since the heat storage combustor and the hot air generator are separately installed and separately operated, there is a problem in that the total installation cost and installation space of the drying apparatus are more than necessary. Specifically, as the heat storage combustor and the hot air generator are separately provided, the heat dissipation area is increased, so that the heat dissipation is large, and the area required for the facility is also increased. The heating burner also has two heating burners and a control system for controlling each burner. Doubled. Moreover, since the VOC itself cannot recover and reuse the heat, it is released to the atmosphere. Therefore, the energy use efficiency is so low that the operation cost of the device is excessive.

The present invention is to solve the problems as described above, and to purify the harmful gases generated during the drying process, such as coatings, prints, adhesives, etc. that generate volatile organic compounds during drying by high-temperature combustion using a heat storage combustor at the same time It recovers the heat of the purified air discharged from the water and resupply it to the drying room to increase the energy use efficiency and reduce the exhaust gas amount in the drying furnace to further increase the energy efficiency, and the equipment cost and space required for the installation of a separate hot air generator. It is an object of the present invention to provide an eco-friendly drying apparatus equipped with a regenerative burner combined with a hot wind generator to further reduce the installation space by taking a structure capable of horizontally installing the regenerative burner on the upper or lower part of the drying chamber. .

According to the present invention for achieving the above object, a drying chamber into which the dry matter is put; A heat storage combustor connected to the drying chamber; A mixing room connected to the drying chamber by a closed circuit while being connected through a duct to supply hot air from the combustion chamber of the heat storage combustor; And a hot air connected between the drying chamber and the mixing room to suck the hot air of the drying chamber into the mixing room to mix the hot air of the drying chamber and the hot air of the combustion chamber of the heat storage combustor in the mixing room to be supplied to the drying chamber again. Provided is an environment-friendly drying apparatus having a heat-generator combined with a hot air generator including a circulation blower.

In the drying apparatus of the present invention, a control valve that is controlled according to a change in temperature measured by a thermometer in the drying chamber is installed in a pipe between the combustion chamber of the heat storage combustor and the mixing room, and the mixing according to opening and closing of the control valve. It may be configured to adjust the amount of hot air introduced into the room.

In addition, the heat accumulator is built in the heat accumulator body connected to the drying chamber and the heat accumulator body to form a combustion chamber in one space of the heat accumulator body, and a horizontal distribution chamber in the other space of the heat accumulator body. The heat storage layer, a distribution pipe installed in the horizontal distribution chamber of the heat storage combustion chamber body, a rotor connected to the end of the distribution pipe, and a burner mounted in the combustion chamber of the heat storage combustion chamber body.

The heat storage chamber has a heat storage chamber disposed at a central portion thereof, and a horizontal distribution chamber and a combustion chamber are disposed at both sides of the heat storage chamber, and the horizontal distribution chamber, the heat storage chamber, and the combustion chamber are perpendicular to the vertical direction of the drying chamber. It may be made of a laid down structure.

In this case, the distribution pipe is installed in the horizontal distribution chamber formed inside the heat accumulator body by the heat storage layer, it is preferable that the communication hole is formed along the spiral direction at predetermined intervals on the outer periphery of the distribution pipe.

In addition, a heat exchanger may be built into the mixing room, and the heat exchanger may have a structure in which one end is connected to the combustion chamber of the heat storage combustor and the other end extends to the outside of the mixing room.

In this case, the heat exchanger may be configured in a metal tube or plate shape.

More preferably, a distribution pipe and a rotor for discharging the clean gas purified by the heat storage combustor are installed in the horizontal distribution chamber formed in the body of the heat storage combustor, and discharged from the rotor in the horizontal distribution chamber of the heat storage combustor body. The heat exchanger is connected to the clean air via the air exchanger, and the heat exchanger may have a structure in which a blower for supplying preheated air from the outside to the combustion chamber of the heat storage combustor is connected.

In some cases, a distribution pipe and a rotor for discharging the clean gas purified by the heat storage combustor through the duct are installed in a horizontal distribution chamber formed in the main body of the heat storage combustor, and the duct is disposed between the combustion chamber and the mixing room. It may also be configured to supply a purified gas connected to a duct directly to the mixing room.

According to the present invention as described above, the hot air generating combined use of the regenerative burner directly to the lower or upper portion of the drying chamber for drying the dried object, connecting the combustion chamber and the mixing room of the heat storage combustor and at the same time closing the mixing room in the drying chamber The structure that connects in this way, that is, a structure in which the hot air generator and the heat storage combustor of the hot air drying chamber are integrated, does not require a separate installation of the hot air generator for drying the heat storage combustor and the dried object for the purpose of removing harmful gases. There are advantages, such that it does not require a lot of installation space and can reduce the cost of equipment, and also can be expected to have a beneficial effect in many aspects, such as cost and space utilization. That is, since it is a hot air generating furnace for a heat storage combustor, when the hot air generating furnace and the heat storage combustor are used separately, the area can be reduced.

Specifically, conventionally, by installing and using a heat storage burner and a drying facility as separate equipment, the heat dissipation area is increased, so that a large amount of heat loss occurs, and the use area of the facility is increased, and the VOC has a problem. Although undesired result of not reusing the heat amount is discarded, the present invention integrates the hot air generator and the heat storage combustor of the hot air drying chamber into one, thereby reducing the number of burners installed to be installed in the combustion chamber of the heat storage combustor by half. In addition, the means for controlling the burner can also be cut in half compared to the conventional method, and the heat amount of the VOC itself can be reused for drying without being blown to the atmosphere. You can expect.

<Reduction of various operating costs>

1. Exhaust loss reduction

Ex) [Based on exhaust capacity: 200N㎥ / min]

    LNG standard price: 600 won / ㎥, Calories: 10,500Kcal / ㎥

Q = [200Nm3 / min ÷ 2] × 60 × 0.24 × 1.29 × [180-20 ° C.] = 297,216 Kcal / hr

[297,216 Kcal / hr ÷ 10,500] × 600 won × 4,200 hrs / year = 71,331,900 won / year

The reduction of the exhaust loss may vary according to the LNG price change, which is very useful in that significant reduction in profits is expected from the viewpoint of the companies.

2. Reduction of cleaning cost in drying furnace-The cleaning cost in drying furnace can be reduced by 2 times longer than the existing cleaning cycle.

3. Environmental improvement in the factory [Reduction of ventilation in the factory]-Less than 1/4 of the existing ventilation.

In addition, the present invention can be said that the drying room is environmentally friendly because the VOC and odor is removed at the same time drying the dry, it is expected to be spotlighted as an environmentally friendly equipment in the field in the future.

In addition, the present invention by directly supplying the air discharged through the rotor discharge portion of the heat storage combustor to the mixing room to recover and recycle all the waste heat discarded to the outside, the energy utilization efficiency is further improved and the operating cost of the device further It is possible to reduce and significantly reduce the harmful gas discharged to the outside through the circulating reuse of the air inside the device has the effect of minimizing the capacity of the additional external purification facility.

The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Example 1 Direct Formula

Figure 1 schematically shows a first embodiment of a drying apparatus having a heat accumulator combined with a hot air generator according to the present invention, Figure 2 is a plan view of the heat accumulator shown in Figure 1, Figure 3 A 4 is a cross-sectional view taken along the line AA ′ of FIG. 2.

In the illustrated drying apparatus of the first embodiment of the present invention, a drying chamber 10 into which a dry object is put, a heat storage combustor 20 connected to an upper part or a lower part of the drying chamber 10, and a combustion chamber of the heat storage combustor 20. (21) a mixing room 30 connected to the discharge end and connected to the drying chamber 10 to form a circulation path through the suction duct 32 and the discharge duct 34, and the drying room 10 and the mixing room 30. It consists of a hot air circulation blower 40 connected between. The blower 40 is installed in the discharge duct 34 to allow air to be transferred from the mixing room 30 to the drying chamber 10.

The heat storage combustor 20 has a box-shaped heat storage combustor body 22 having a suction port connected to the drying chamber 10, and a heat storage layer 24 embedded in the body 22. The heat storage layer 24 is embedded in the central portion in the horizontal direction of the heat accumulator body 22 to form a combustion chamber 21 in one space of the body 22 and a horizontal distribution chamber 25 in the other space. The horizontal distribution chamber 25 is provided with a plurality of partition plates 29 to divide the horizontal distribution chamber 25 into a plurality of distribution chambers. Then, a distribution pipe 26 is installed through each of the partition plates 29, and a plurality of communication holes 26a are formed on the outer circumference of the distribution pipe 26 along the spiral direction at equal intervals, and the distribution pipe ( At the end of 26, a rotor 90 is provided. The rotor 90 has a supply part for supplying untreated harmful gas to one side of a circular shape in cross section and a discharge part for discharging the processed gas purified to the other side of the supply part.

According to the heat storage combustor 20, the harmful gas introduced from the drying chamber 10 into the horizontal distribution chamber 25 of the heat storage combustor main body 22 is rotated by the rotor 90 and the supply part of the rotor 90 and the distribution pipe. (26) is supplied to the combustion chamber 21 via the communication hole 26a and the heat storage layer 24, and in the combustion chamber 21, the noxious gas is burned by the burner 28 at 800 degreeC or more high temperature, and it is 98% or more harmful. The material is purified with clean air removed, and the purified air is discharged to the outside through the outlet of the rotor 90 and the other communication hole 26a of the distribution pipe 26 again.

Since the structure and operation of the distribution pipe 26 and the rotor 90 are disclosed in Patent No. 0529543, Patent No. 0524290, Utility Registration No. 0280797, etc., it is possible to take an appropriate structure among the known structures. For the sake of brevity, the detailed description and specific drawings thereof will be omitted. For reference, in the present invention, the distribution pipe 26 and the rotor 90 are illustrated in the structure disclosed in Patent No. 0529543.

On the other hand, as shown in Figure 1, the heat exchanger 70 is connected to the rotor side discharge portion of the heat storage combustor 20 through the pipe P1, the hot air discharged from the rotor 90 is a heat exchanger 70 Exhaust to the outside via. The heat exchanger 70 is connected to the combustion chamber 21 of the heat storage combustor 20 through an air supply pipe P2 communicating with the outside, and a blower 60 is separately connected to the air supply pipe P2. Accordingly, the heat of the hot air discharged to the outside is transferred through the rotor 90 of the heat storage combustor 20 to heat the air introduced from the outside, and through this, fresh external air appropriately preheated is supplied to the combustion chamber 21. Combustion of the burner 28 is promoted.

The mixing room 30 is connected between the combustion chamber 21 and the drying chamber 10 of the heat storage combustor 20. The mixing room 30 is connected in a closed loop to the drying chamber 10 through the suction duct 32 and the discharge duct 34, while the combustion chamber 21 and the duct 36p of the heat storage combustor 20 are connected. do.

The exhaust pipe 34 between the drying chamber 10 and the mixing room 30 is provided with a hot air circulation blower 40. The air of the drying chamber 10 is sucked into the mixing room 30 by the blower 40, and the sucked air is mixed with the hot air supplied from the heat storage combustor 20 in the mixing room 30 and then the drying room ( 10).

Referring to the operation of the first embodiment (direct type) of the present invention having such a configuration, the dry or painted to dry, the printed to dry or the like to the drying chamber 10, the discharge port at the inlet side of the drying chamber Pass it to the side.

At the same time, the harmful gas introduced from the drying chamber 10 through the supply section of the rotor 90 of the heat storage combustor 20 is burned by the burner 28 of the combustion chamber 21 via the heat storage layer 24 of the heat storage combustor 20. And the purified clean air is discharged to the outside through the discharge portion of the rotor 90.

At this time, the heat distribution machine 70 is connected to the horizontal distribution chamber 25 of the heat storage combustor 20, specifically, the discharge portion of the rotor 90, and the combustion chamber of the heat storage combustor 20 is connected to the other side of the heat exchanger 70. Since the blower 60 for supplying air to the combustion burner 28 mounted on the 21 is connected, the clean gas purified through the heat storage combustor 20 is discharged to the outside air through the heat exchanger 70, Heat of the discharged hot gas is absorbed by the outside air introduced by the blower 60 and is supplied to the burner 28 again.

Accordingly, since waste heat discharged from the heat storage combustor 20 is recovered and can be recycled to preheating air supplied to the burner 28, the energy use efficiency of the device is remarkably reduced by saving a large amount of thermal energy that has been conventionally discarded. It can be improved.

On the other hand, the hot air supplied from the combustion chamber 21 of the heat storage combustor and the hot air discharged from the drying chamber 10 are introduced into the mixing room 30 and mixed with each other, compared to the hot air temperature supplied from the combustion chamber 21. Since the hot air temperature of is relatively low, the temperature of the hot air in which they are mixed can be adjusted to an appropriate temperature necessary for drying the dried material. In this way, the hot air of a suitable temperature mixed in the mixing room 30 is supplied back into the drying chamber 10 by the hot air circulation blower 40 to dry the dry matter inside the drying chamber 10.

In other words, the harmful gas generated during drying of the dried object in the drying chamber 10 is purified by clean air through the heat storage combustor 20 and introduced into the mixing room 30 by the hot air circulation blower 40, and furthermore, the drying chamber. Since the hot air of 10 is added to the mixing room 30, the hot air to be mixed into the drying room 10 is mixed with hot air having a relatively high temperature and hot air having a relatively low temperature in the mixing room 30. The hot air of the appropriate temperature is input to the drying chamber (10).

In the present embodiment, the temperature of the hot air is adjusted to a range of 120 ° C. to 220 ° C., and thus hot air adjusted to an appropriate temperature in the mixing room 30 is introduced into a drying chamber to dry the dry matter. Of course, since the harmful gas inside the building is already purified by the heat storage combustor 20, in the mixing room 30, clean hot air is introduced into the drying chamber 10 to dry the dry matter.

Therefore, according to the present invention, the heat storage combustor 20 is directly installed in the lower or upper portion of the drying chamber 10 for drying the dry matter, and the mixing room 30 is provided in the combustion chamber 21 of the heat storage combustor 20. At the same time, by connecting the mixing room 30 to the drying chamber 10 in a closed circuit, the hot air generator and the heat storage combustor 20 of the drying apparatus are integrated, and the heat storage combustion machine 20 for purifying harmful gases is connected. There is no need to provide a separate hot air generator for drying the dry matter. Accordingly, there is an advantage that the installation space of the entire drying apparatus is significantly less than the conventional, and the installation cost is also reduced, which can be advantageous in various aspects such as cost and space utilization.

In addition, according to the present invention, the heat storage layer 24 is provided inside the main body 22 of the heat storage combustor 20, and the combustion chamber 21 and the distribution pipe 26 are respectively located on both sides of the heat storage layer 24 in the horizontal direction. By implementing a horizontal rotational distribution type regenerator having a rotor (90), the height of the regenerator (20) is significantly lower than in the prior art, so that the regenerator (20) can be directly mounted below or above the drying chamber (10). Accordingly, there is an advantage that the device facility area can be further reduced compared to the conventional installation of the heat storage combustor 20 in a separate place.

Specifically, the general heat storage combustor has a horizontal distribution chamber, a heat storage chamber and a combustion chamber sequentially arranged upward from the lower side so as to stand in a vertical form, but according to the present invention, the heat storage combustor main body 22 of the heat storage combustor 20 is The horizontal distribution chamber 20, the heat storage chamber 24, the combustion chamber 21 is laid down in a horizontal direction to form a horizontal direction, the combined heat storage combustion facility for the hot air generating furnace for eco-friendly drying device characterized in that Can be.

In other words, as shown in FIG. 3, the heat storage combustor 20 has a heat storage chamber 24a disposed at the center of the heat storage combustion chamber body 22, and the combustion chambers 21 are provided at both sides of the heat storage chamber 24a, respectively. ) And the horizontal distribution chamber 27a are arranged in the horizontal direction orthogonal to the vertical direction line VV of the drying chamber 10, so that the heat storage combustor 20 itself is laid horizontally with respect to the drying chamber 10. It can be configured, and thus, it can take a structure that considerably lowered the height of the heat storage burner 20 as compared with the prior art.

Therefore, it is possible to directly install the heat storage combustor 20 in the lower side or the upper side of the drying chamber 10, thereby eliminating the disadvantage of having to install the heat storage combustor 20 separately outdoors.

In addition, according to the present invention, since the VOC and the odor is removed at the same time when drying the dried object, tar and odor are eliminated inside the drying chamber, and an environmentally friendly effect can be expected. In addition, by reusing the amount of heat of the untreated harmful gas itself into the atmosphere without being blown as it is, it is possible to obtain a result that can further increase the thermal efficiency.

For example, the present invention will be a useful invention that can remove the untreated harmful gas generated during drying of the dried material, and at the same time, the heat of the untreated harmful gas itself can be recycled as an energy source of the heat storage combustion equipment.

Table 1 below compares the advantages and features of the heat storage combustion method drying apparatus of the present invention with respect to the conventional direct combustion method and the catalyst continuous drying apparatus.

     Catalytic Combustion Method      Direct combustion method      Regenerative combustion method VOC Treatment Temperature 400 ℃ ~ 550 ℃ 700 ℃ ~ 750 ℃ 800 ℃ ~ 850 ℃ VOC treatment efficiency 80% 93% 98% Heating temperature difference ΔT 190 ℃ ~ 250 ℃ 300 ° C 190 ℃ ~ 250 ℃ Maintenance Heat exchanger clogged
Catalyst exchange [4 years]
Catalytic poison generation Heat exchanger clogged
Heat exchanger crack
Heat exchanger exchange
Almost none
Site use area 80 100 80 Duct length 90 100 80 Heat capacity conversion Impossible Impossible possible Energy usage 75 100 75 Production cost 80 100 70 Facility price 100 100 100

As shown in Table 1, the regenerative combustion drying apparatus of the present invention not only can obtain a high VOC treatment efficiency of more than 98%, which is significantly higher than the two conventional methods, and the energy consumption during operation can be reduced similarly to the catalytic combustion method. While there is almost no need for maintenance such as catalyst regeneration and catalyst replacement according to the use of the catalyst, there is an advantage that can significantly reduce the device operating cost.

A comparison of more specific details is given in Table 2.

Direct combustion method Catalytic Combustion Method Regenerative combustion method Operation High load Under load High load Under load High load Under load Exhaust gas Treatment air volume [N㎡ / min] 150 150 150 150 150 150 Combustion Treatment Temperature [℃] 750 750 550 400 820 820 Hot air temperature difference ΔT [℃] 300 300 250 190 250 190 heat transmitter High Temperature Side Temperature [℃] 750 750 550 440 400 340 Operating conditions High temperature High temperature Medium temperature Low temperature Low temperature Low temperature Total calories [Kcal / Hr] 1,039,500 1,039,500 742,500 564,300 742,500 564,300 Driving fee Fuel Cost [1,000 won / year] 270,270 270,270 193,050 146,718 193,050 146,716 Heat exchanger depreciation [1,000 won / year] 10,000 10,000 10,000 10,000 5,710 5,710 Pretreatment Agent Price [thousand won / year] 0 0 12,750 12,750 0 0 Catalyst price [1,000 won / year] 0 0 15,750 15,750 0 0 Catalyst Cleaning Fee [thousand won / year] 0 0 4,218 4,218 0 0 Total yearly cost [thousands of won / year] 280,270 280,270 235,766 189,436 198,760 152,428

As shown in Table 2, the heat storage combustion method of the present invention is very small compared to the direct combustion method in the hot air temperature difference of the exhaust gas is similar to the catalytic combustion method, the operating conditions of the heat exchanger is lower than the direct combustion method as well as the catalytic combustion method Because of low temperature, the fuel cost of operation is reduced, and the depreciation cost of heat exchanger is reduced by extending the life of the device, and there is no various cost due to the use of catalyst, so the annual device operation cost is compared with the conventional direct combustion method and the catalytic combustion method. This can be significantly reduced.

Example 2 Indirect Type

The second embodiment of the drying apparatus of the present invention shown in Figure 4 illustrates an indirect structure, the drying chamber 10, the heat storage combustor 20 connected to the drying chamber 10, the heat storage combustor 20 to which the dry material is input. The mixing chamber 30 and the drying chamber 10 which are connected between the combustion chamber 21 and the drying chamber 10, and are connected in a closed loop through the suction duct 32 and the discharge duct 34 to the drying chamber 10. The configuration of the hot air circulation blower 40 connected between the rooms 30 is similar to the direct type described above.

However, in an indirect type, the heat exchanger 50 is built into the mixing room 30. In the case of the present invention, the heat exchanger 50 is illustrated as being configured in a metal tube or plate shape, but is not limited thereto. One end of the heat exchanger 50 is connected to the combustion chamber 21 of the heat storage combustor 20, and the other end thereof extends to the outside of the mixing room 30.

According to the indirect method of FIG. 4, the hot air of the combustion chamber 21 formed in the heat storage combustor body 22 passing through the heat exchanger 50 and the hot air of the drying chamber 10 are mixed to be avoided into the drying chamber 10. Since it supplies hot air suitable for drying the dried material, foreign materials such as incomplete combustion materials, which may be generated during combustion, are discharged to the outside without being introduced into the drying furnace while effectively utilizing the heat of the regenerative combustion machine to further improve the drying quality of the processed product. Can be. In addition, although repeated description is omitted, it is a matter of course that this indirect structure can implement the same effect of the above-described first embodiment.

On the other hand, in the direct type and the second type indirect drying apparatus of the first embodiment of the present invention, the combustion chamber 21 and the mixing room 30 of the heat storage combustor main body 22 are connected to each other through the duct 36p, The control valve 95 is installed at 36p, and the control valve 95 is connected to a thermometer T for measuring a temperature change in the drying chamber 10, and hot air is injected into the mixing room 30. It can be made of a structure for adjusting the temperature to be appropriate.

That is, the hot air discharged from the combustion chamber 21 of the heat storage combustor 20 is supplied to the mixing room 30 through the duct 36p, and in accordance with the temperature condition measured by the thermometer T in the drying chamber 10. By taking the structure that the opening and closing of the control valve 95 is controlled, it is possible to obtain a hot air temperature suitable for drying by adjusting the amount of hot air of the heat storage combustor 20 introduced into the mixing room 30. On the other hand, controlling the opening and closing of the control valve 95 by the temperature measured by the thermometer (T) is obvious that can be performed by employing a known control device.

<Example 3 and Example 4>

6 shows a third embodiment of the present invention, and FIG. 7 shows a fourth embodiment of the present invention. 6 is direct, and FIG. 7 is indirect. 6 and 7, the mixing room 30 is connected to the discharge end of the combustion chamber 21 of the heat storage combustor 20 through a duct 36p, similar to the first embodiment described above, and the mixing is performed. The drying chamber 10 is connected to the room 30 so as to form a hot air circulation path through the suction duct 32 and the discharge duct 34, and the duct P1 connected to the rotor outlet of the heat storage combustor 20 is It has a structure that is directly connected to the duct 36p between the combustion chamber 21 and the mixing room 30 without being communicated to the outside atmosphere.

This structure can supply heat for drying by supplying air heated and purified in the combustion chamber 21 to the mixing room 30 and mixing it with air circulated to the drying chamber 10 in the same manner as in the above-described embodiment. In addition, by directly supplying the air discharged through the rotor discharge portion to the mixing room to recover and recycle all the waste heat discarded to the outside, the energy utilization efficiency is further improved and the operating cost of the device can be further reduced There is this. In addition, since it is reused while circulating the air inside the device there is an advantage that can significantly reduce the harmful gas discharged to the outside to minimize the capacity of the additional external purification facility.

<Example 5>

8, a fifth embodiment of the present invention is shown. This exemplifies a one-burner direct type structure, which includes a drying chamber 10 partitioned into a plurality of zones, a mixing room 30 and a circulation fan 40 connected to form a closed circulation path for each partitioned compartment of the drying chamber 10. ), A heat exchanger 70 for sucking harmful gas in the drying chamber 10 and heating external air, a transfer fan 60 for pumping harmful gas and external air mixed in the heat exchanger 70, and And a heat storage combustor 20 which removes harmful substances by heating the mixed gas supplied by the transfer fan 60, and is connected to an inlet side of the drying chamber 10 to mix the air inside the drying chamber 10 with external air. It consists of a preheater 90 for heating and recycling. The discharge end of the heat storage combustor 20 is connected to the mixing room 30 of each zone of each drying chamber 10 to supply the purified mixed gas, and is also directly connected to the inlet side and the outlet side of the drying chamber 10. It is comprised so that the temperature of the inlet and outlet side of 10 may be adjusted suitably.

<Example 6>

Fig. 9 shows a sixth embodiment of the present invention, showing a burner-to-director structure. That is, the illustrated embodiment is a drying chamber 10 partitioned into a plurality of zones, and a direct mixing room 30a and a circulation fan 40 connected to form a closed circulation path at each inlet and outlet side of each zone of the drying chamber 10. ), And an indirect mixing room 30b and a circulation fan 40 connected to each other to form a closed circulation path in each of the zones of the drying chamber 10 except for the inlet and the outlet side, and the harmful gas inside the drying chamber 10. A heat exchanger (70) for sucking external air and heating external air, a conveying fan (60) for conveying harmful gas and external air mixed in the heat exchanger (70), and a mixture supplied by the conveying fan (60) Regenerative combustion device 20 for heating the gas to remove harmful substances, and the preheater 90 is connected to the inlet side of the drying chamber 10 to mix and heat the air and the outside air in the drying chamber 10 for recycling. . Even in this case, the discharge end of the heat storage combustor 20 is connected to the direct mixing room 30a and the indirect mixing room 30b of each zone of each drying chamber 10 to supply the purified mixed gas, while the drying chamber ( It is also connected directly to the inlet and outlet side of 10) is configured so that the temperature of the inlet and outlet side of the drying chamber 10 can be adjusted appropriately.

<Example 7>

A seventh embodiment of the present invention is shown in FIG. This illustrates the direct structure of the burner, and similarly to the above, the direct mixing room 30a and the indirect mixing room 30b are connected to each other in each compartment of the drying chamber 10 so as to form a closed circulation path. Regenerator 20 is connected to each indirect mixing room 30b, respectively.

Example 8

11, an eighth embodiment of the present invention is shown. This illustrates the indirect structure for each zone, and the direct mixing room 30a is connected to only the outlet side of each zone of the drying room 10, and the indirect mixing room 30b is connected to the other zones. The heat storage combustor 20 is installed in each of the indirect mixing rooms 30b.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a view schematically showing a configuration of a first embodiment of the present invention

FIG. 2 is a plan view of the heat storage burner shown in FIG.

FIG. 3 is a view of FIG. 2 viewed in the A direction

4 is a cross-sectional view taken along the line A-A of FIG.

5 is a view schematically showing a configuration of a second embodiment of the present invention.

6 is a diagram schematically showing a configuration of a third embodiment of the present invention.

7 is a diagram schematically showing a configuration of a fourth embodiment of the present invention.

8 is a diagram schematically showing a configuration of a fifth embodiment of the present invention.

9 is a diagram schematically showing a configuration of a sixth embodiment of the present invention.

10 is a diagram schematically showing a configuration of a seventh embodiment of the present invention.

11 is a diagram schematically showing a configuration of an eighth embodiment of the present invention.

Claims (13)

A drying chamber 10 into which a dry matter is introduced; A heat storage combustor 20 connected to the drying chamber 10; A mixing room 30 connected to the drying chamber 10 in a closed loop while being connected through a duct 36P to supply hot air from the combustion chamber 21 of the heat storage combustor 20; And The hot air of the drying chamber 10 and the combustion chamber of the heat storage combustor 20 are connected between the drying chamber 10 and the mixing room 30 to suck the hot air of the drying chamber 10 into the mixing room 30. Eco-friendly drying apparatus having a hot air generator combined heat storage combustor comprising a hot air circulation blower (40) for mixing the hot air of the (21) in the mixing room 30 to be supplied back to the drying chamber (10). The method of claim 1, In the duct 36p between the combustion chamber 21 and the mixing room 30 of the heat storage combustor 20, a control valve 95 controlled according to a change in temperature measured by the thermometer T in the drying chamber 10 is provided. It is installed, eco-friendly drying apparatus having a hot air generator combined heat storage combustor, characterized in that configured to adjust the amount of hot air introduced into the mixing room (30) in accordance with the opening and closing of the control valve (95). The method of claim 1, The heat storage combustor 20 is installed in the heat storage combustor main body 22 connected to the drying chamber 10 and the heat storage combustor main body 22 to provide a combustion chamber 21 to one side space of the heat storage combustor main body 22. And a heat storage layer 24 for forming a horizontal distribution chamber 25 in the other space portion of the heat storage combustion chamber main body 22 and a distribution pipe 26 provided in the horizontal distribution chamber 25 of the heat storage combustion chamber main body 22. ), And a rotor (90) connected to an end of the distribution pipe (26), and a burner mounted on a combustion chamber (21) of the heat storage combustor body (22). The method of claim 3, In the main body 22 of the heat storage combustor 20, a heat storage chamber 24a is disposed at a central portion thereof, and horizontal distribution chambers 25 and a combustion chamber 21 are disposed at both sides of the heat storage chamber 24a, respectively. Environment-friendly drying with a hot air generator combined heat storage characterized in that the distribution chamber 25, the heat storage chamber 24a and the combustion chamber 21 is laid in a direction perpendicular to the vertical direction of the drying chamber 10. Device. The method of claim 4, wherein The distribution pipe 26 is installed in the horizontal distribution chamber 25 formed in the heat storage combustion chamber main body 22 by the heat storage layer 24, and spirally at predetermined intervals on the outer circumference of the distribution pipe 26. Eco-friendly drying device having a heat-generator combined heat storage combustor, characterized in that the communication hole (26a) is formed along. The method of claim 1, The heat exchanger 50 is built into the mixing room 30, and the heat exchanger 50 has one end connected to the combustion chamber 21 of the heat storage combustor 20 and the other end outside the mixing room 30. Eco-friendly drying device equipped with a hot air generator combined heat storage combustor, characterized in that extended to. The method of claim 6, The heat exchanger (50) is an eco-friendly drying device having a heat-generator combined with a hot air generator, characterized in that the metal tube or plate shape. The method according to any one of claims 1 to 7, The horizontal distribution chamber 25 formed in the main body 22 of the heat storage combustor 20 is provided with a distribution pipe 26 and a rotor 90 for discharging the clean gas purified by the heat storage combustor 20, A heat exchanger 70 through which clean air discharged from the rotor 90 is connected to the horizontal distribution chamber 25 of the heat storage combustor body 22, and the heat exchanger 70 is preheated by being introduced from the outside. Eco-friendly drying device having a heat-generator combined use hot air generator, characterized in that the blower 60 for supplying air to the combustion chamber 21 of the heat storage combustor 20 is connected. The method according to any one of claims 1 to 7, The horizontal distribution chamber 25 formed in the main body 22 of the heat storage combustor 20 has a distribution pipe 26 and a rotor for discharging the clean gas purified by the heat storage combustor 20 through the duct P1. 90 is installed, and the duct P1 is connected to the duct 36p between the combustion chamber 21 and the mixing room 30 to supply purified gas directly to the mixing room 30. Eco-friendly drying device equipped with a heat accumulator combined with a hot wind generator. A drying chamber 10 partitioned into a plurality of zones, a mixing room 30 and a circulation fan 40 which are connected to form a closed circulation path for each section of the drying chamber 10, and the harmful inside the drying chamber 10. A heat exchanger 70 for sucking gas and heating external air, a transfer fan 60 for pumping harmful gas and external air mixed in the heat exchanger 70, and a supply fan 60 supplied by the transfer fan 60. Regenerative combustion (20) to remove the harmful substances by heating the mixed gas, and the preheater (90) is connected to the inlet side of the drying chamber 10, the reheating supply by mixing and heating the air and the outside air in the drying chamber (10) The discharge end of the heat storage combustor 20 is connected to the mixing room 30 of each zone of each drying chamber 10 to supply the purified mixed gas, and is connected to the inlet side and the outlet side of the drying chamber 10 at the same time. (10) characterized in that the temperature of the inlet and outlet side is adjusted appropriately Eco-friendly drying device equipped with a regenerative burner combined with a hot air generator. Drying chamber 10 partitioned into a plurality of zones, direct mixing room 30a and circulation fan 40 connected to the inlet and outlet side of each zone of drying chamber 10 to form a closed circulation path, and drying chamber 10 Indirect mixing room (30b) and circulation fan 40 and the harmful gas in the drying chamber (10) installed to form a closed circulation path in each of the zones except the inlet and outlet side of each of the outside air by A heat exchanger 70 for heating, a conveying fan 60 for pumping harmful gas and external air mixed in the heat exchanger 70, and a mixed gas supplied by the conveying fan 60 are heated for harmful substances. Regenerative combustion (20) for removing the and the inlet side of the drying chamber 10 is installed and includes a preheating supply (90) for recirculating and supplying the mixed air of the drying chamber 10 and the outside air, the heat storage combustor ( 20, the discharge end is a direct mixing room (30a) of each zone of each drying chamber (10) and It is connected to the foldable mixing room (30b) to supply the purified mixed gas and at the same time connected to the inlet and outlet side of the drying chamber 10 characterized in that the temperature of the inlet and outlet side of the drying chamber 10 is properly adjusted Eco-friendly drying device equipped with a heat accumulator combined with a hot wind generator. The method of claim 11, Eco-friendly drying apparatus having a heat-generator combined heat storage combustor, characterized in that the heat storage combustor 20 is connected to each indirect mixing room (30b). Drying chamber 10 partitioned into a plurality of zones, a direct mixing room 30a and a circulation fan 40 connected to form a closed circulation path in each of the sections of the drying chamber 10 except for the outlet side, and a drying chamber ( Indirect mixing room (30b) and circulation fan 40 and the heat exchanger for sucking the harmful gas inside the drying chamber (10) installed to form a closed circulation path at the outlet side of each zone of 10) (70), a transfer fan (60) for pumping the harmful gas and external air mixed in the heat exchanger (70), and a heat storage for heating the mixed gas supplied by the transfer fan (60) to remove harmful substances And a preheater (90) connected to the combustor (20) and the inlet side of the drying chamber (10) for mixing and heating and recirculating and supplying the internal and external air of the drying chamber (10), and discharging the heat storage combustor (20). The stage is a direct mixing room 30a and an indirect mixing room 30b of each zone of each drying room 10. It is connected to the inlet and outlet side of the drying chamber 10 at the same time to supply the purified mixed gas connected to the heat storage generator, characterized in that the heat storage combustor 20 is connected to each indirect mixing room (30b) is installed Eco-friendly drying device equipped with a combustor.

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