KR200213977Y1 - Vertical Type Drying Apparatus by Closed Circulation Method - Google Patents

Abstract

The present invention relates to a vertical drying apparatus of a closed circulation method.

As a conventional drying device, domestic patent publication No. 96-4473 discharges the internal air to the outside of the device through a deodorization tower and introduces new air into the drying device. However, the odor generated during operation is not properly removed. Because of the problem of pollution of the surrounding environment of the device and the external air containing moisture is supplied to the inside, the drying effect is reduced, and in the case of the stirring vane, only the content of the contents is induced to the outside. In case of large amount of dust in the air, the air was easily blocked, blocking the flow of internal air and causing serious problems in operation.

In order to solve such a conventional problem, the present invention circulates the air inside in a sealed state only in the inside, and improves efficiency by returning the internal air to a dry condition after preheating the cooling condensation process, thereby improving efficiency. To prevent the occurrence of the source, and to facilitate the mixing and mixing of the contents, it is possible to install a plurality of drying chambers to be linked to the simultaneous and continuous drying operation is carried out in sequence, and to recycle waste heat to make it possible to use more economically. There is a characteristic.

Description

Vertical Type Drying Apparatus by Closed Circulation Method}

The present invention does not discharge the hot and humid air generated from the contents inside the drying chamber, which is heated from outside, to the outside of the apparatus by forcing it through the cooling condenser to discharge the condensate and to remove only the air in which the moisture is removed. It relates to a closed-circulation type drying apparatus for repetitive circulation operation to return to a high speed to dry the contents at a high speed.

As a conventional vertical drying apparatus, a 'fermentation-decomposition drying apparatus of perishable organic waste' of Korean Patent Publication No. 96-4473, which is the applicant's prior art, is already known. In this case, a high temperature and high humidity generated by heating the contents to be dried The air is discharged to the outside of the device through the deodorizing tower and fresh air is introduced from the outside of the device to dry it.However, if the contents are organic waste, the odor generated from the contents goes through the deodorizing tower at the beginning of operation. Although the removal is carried out to some extent, the more the operation is performed, the deodorizing tower does not have a proper function, and there is a closed end where the odor is not properly removed. Of course, if the deodorizing material inside the deodorizing tower is frequently replaced, the deodorizing effect may be sustained to some extent. However, a high cost is required for such a replacement, and the operation efficiency is lowered because the device cannot be operated during the replacement. There is a problem. Moreover, although it is discharged to the outside after passing through the deodorizing tower, the odor is generated due to the basic principle and structural weakness that must release the internal air containing a large amount of moisture and odor generated while drying the contents to the outside of the device. There is a problem that can not be solved fundamentally.

In addition, the high temperature and high humidity air inside the device is discharged to the outside and the negative pressure acts on the inside of the device so that the outside air naturally flows into the inside of the device due to such negative pressure. Since the contained moisture is supplied to the inside of the device without being removed separately, it is difficult to dry the content from the inside of the device to the humidity of the outside air, so that the drying effect of the content is relatively low and the time required for drying In the meantime, the relatively late delay is emerging.

In addition, in the case of the internal agitator blades is configured to induce only the rise of the contents only to the outside close to the inner wall of the fermentation drying chamber and to cause a natural fall on the inside, the synergy of the contents can be expected to some extent, but in practice The centrifugal force is applied to the contents so that the raised contents do not flow into the inside of the stirring blade and are entangled with the inner wall of the fermentation drying chamber. It does not, and it raises an operation problem, such as only adding a load force to rotation of a stirring blade.

In addition, when the contents are dried to some extent, when some of the dried contents are scattered from the inside and are generated in a large amount of dust, the through-holes are easily blocked, making it difficult for inflow of external air, and the balance of the flow of internal air is broken. Obi exhaust operation of internal air is not smooth and may cause serious problems.

The present invention has been developed in order to solve such a conventional problem, and has the following objectives.

The main purpose of the present invention is to allow the internal air to be circulated in the sealed state only from the inside while being blocked from the outside air of the device, but by condensing the hot and humid air in the closed circulation process to discharge only the condensate to the outside. While the operation is being made, it is possible to fundamentally block the generation of odor generated from the contents during the drying operation, and return the low temperature and low humidity air immediately after the process of cooling and condensing the internal high temperature and high humidity air to the drying chamber immediately. Rather, it is intended to improve the drying efficiency by returning from the state that meets the drying conditions during the preheating process.

Another object of the present invention is to make the inner stirring blade to the outside of the contents to be able to rise, the inside of the forcing to be configured to be able to be lowered to be able to make the stirring mixing of the contents and moving up, down more smoothly.

Another object of the present invention is to provide a closed circulation type to enable the interlocking of a plurality of drying chambers in which the cooling condensation process is performed, and the simultaneous or continuous drying operation is performed sequentially, and the waste heat is maintained to maintain a suitable heating temperature condition according to the drying conditions. It is intended to enable more economical use while increasing the drying efficiency by enabling recycling.

Another object of the present invention is to remotely displace the inlet of the internal air discharged from the inside of the drying chamber and the inlet to return to the inside of the drying chamber after the closed circulation operation for the cooling condensation process. It is located at the inside of the outlet and installs a filter which can be replaced in the middle of the outside air flow passage outside the outlet to minimize the mixing of the exhaust air and the inlet air during the closed circulation operation, and eliminate the phenomenon that the inside air flow passage is blocked in the middle. It is intended to make the drying operation more smooth and to improve the drying efficiency.

Figure 1 is a schematic diagram for explaining the concept of the drying apparatus of the present invention,

FIG. 2 is a side view of the stirring blade in FIG.

Figure 3 is a system diagram showing an example configured by installing a plurality of drying chambers together in an interlocking manner using the concept of the drying apparatus of the present invention.

The present invention is a conventional drying apparatus for drying the contents while putting the contents to be dried in the interior of the drying chamber to achieve the various objects, and drying the contents by stirring and mixing the contents by a stirring vane, in a drying chamber accommodating the contents Form an outlet and inlet of the internal air, respectively, and form an internal air flow path having a blower between the outlet and the inlet, wherein the drying chamber and the internal air flow path are formed to enable a closed circulation in a state blocked from the outside. A cooling condenser is installed in the middle of the internal air flow path, and the condensed water generated in the cooling condenser is discharged to the outside through the drain, and the vertical drying device by a closed circulation method is formed by installing a preheater in the middle of the internal air flow path between the cooling condenser and the inlet. To provide.

In addition, the stirrer installed inside the drying chamber consists of a rising screw in the form of a rising screw and an inner stirring blade in the form of a falling screw around the central axis, and blocks the rise of the contents at the upper positions of the inner and outer stirring blades. Provided is a vertical drying apparatus by an airtight circulation method formed by installing a blocking bar.

In addition, a plurality of drying chambers are formed separately, and a plurality of adjacent drying chambers are provided with internal communication paths so that the contents can be moved, and regardless of whether the drying chambers are single or plural, the heat source of the preheater is a heat exchanger in the boiler flue. It is installed to enable the utilization by the heating medium supplied from the heat exchanger, and provides a vertical drying apparatus by a closed circulation method by installing a blower between the cooling condenser and the preheater.

In addition, the positions of the outlet of the internal air discharged from the inside of the drying chamber to the outside and the inlet port returning back to the interior of the drying chamber after the closed circulation operation for the cooling condensation process are located at a long distance in the up, down direction, and inward and outward directions. Provided is a vertical drying apparatus by a closed circulation method formed by installing a replaceable filter in the middle of the outer air flow passage of the outlet.

Hereinafter, a look at the center of the preferred embodiment of the present invention based on the accompanying drawings.

That is, in the conventional drying apparatus which puts the content to dry inside the drying chamber 1, heats the drying chamber 1, and stirs and mixes the content, the inside air is stored in the drying chamber 1 which accommodates the contents. A discharge port 3 and an inlet 5 are respectively formed, and an internal air flow path 9 having a blower 7 is formed between the discharge port 3 and the inlet 5, wherein the drying chamber 1 and the internal air are formed. The flow passage 9 is formed to be sealed in a state in which it is blocked from the outside, and the cooling condenser 11 is installed in the middle of the internal air flow passage 9 so that the condensed water generated in the cooling condenser 11 is drained ( 13) is discharged to the outside through the pre-heater 15 is installed in the middle of the internal air flow path (9) between the cooling condenser (11) and the inlet (5).

At this time, the heating source of the drying chamber 1 may be made by heating the heating unit 19 located in the lower part of the drying chamber 1 by, for example, a heating medium heated by the boiler 17. As shown, heating by the boiler 17 is performed, but first heating the drying chamber (10, 20), and then heating the drying chamber (10, 20) and return the heating medium adjacent to the drying chamber (30) After the recycling to the heating source to be heated may be configured to circulate the heat medium to return to the boiler 17 via the heating medium supplement tank 21, the pump 23 again. Of course, as long as the contents inside the drying chamber 1 (10, 20, 30) can be heated, any other form may be used.

The cooling medium supplied to the cooling condenser 11 is supplied from the cooling medium supplement tank 25 to the cooling condenser 11 via the pump 27 and the cooling tower 29, and then cooled again after passing through the cooling condenser 11. It is possible to circulate the feed back to the medium supplement tank 25, the cooling medium is introduced from the outlet 31 of the internal air when the center of the cooling condenser 11 to the inlet 33 of the internal air It is preferable to configure so as to return through and to increase the cooling condensation effect.

In addition, the stirrer 40 installed inside the drying chamber 1, 10, 20, 30 has an outer stirring blade 46 formed on the fixed frame 44 about the central axis 42 in the form of a rising screw. , Internal stirring blade 48 is configured in the form of a falling screw, it is made by installing a blocking bar 50 for blocking the rise of the contents in the upper position of the inner and outer stirring blades (48,46).

In addition, the drying chambers 1, 10, 20, and 30 may be configured in a single form as shown in FIG. 1 or may be configured in a plurality of separate forms as shown in FIG. 2, and the plurality of drying chambers 10, 20, 30, the internal communication path (35, 37) is installed between the plurality of adjacent drying chambers (10, 20, 30) are configured to allow the movement of the contents, such internal communication path (35) , 37 may be attached to the outside of the drying chamber (20, 30), or installed adjacent to the inside of the drying chamber (10, 20) can be configured to enable mutual communication, these internal communication paths (35, 37) The opening and closing of the contents may be configured to determine whether or not the movement of the contents, it may also be configured to force the feeding of the contents by installing a conventional screw conveyor inside.

In addition, regardless of whether the drying chamber 1 (10, 20, 30) is single or plural, the heat source of the preheater 15 is installed from the heat exchanger 39 in the flue of the boiler 17, It is preferable to recycle the waste heat by being able to be utilized by the supplied heating medium, but if necessary, heating can also be performed by an external heating source as in the heating method of the drying chamber (1) (10, 20, 30). In this case, it should be noted that when looking at the preheater 15, the heating medium fed to the preheater 15 is introduced from the discharge part 52 of the internal air and returned through the inlet part 53 of the internal air. It is preferable to return to and supply the inside of the drying chambers 1, 10, 20, and 30 in a more elevated state via (15).

In addition, a blower 7 is installed in the internal air flow path 9 between the cooling condenser 11 and the preheater 15 to isolate the cooling condenser 11 and the preheater 15 from each other and to force the internal air. It is desirable to make it.

In addition, the position of the outlet 3 of the internal air discharged from the interior of the drying chamber 1, 10, 20, 30 to the outside and the inlet 5 to return to the interior of the drying chamber after the closed circulation operation for the cooling condensation process As shown in FIG. 1, a plurality of outlets 3 are positioned on the upper inner wall surface of the drying chamber 1 so that the outlets 3 are located at a long distance in the up, down direction, and inward and outward directions. 40 is preferably located adjacent to the blocking bar 50 and the central axis 42, the filter 60 is provided that can be replaced from the outside in the middle of the outer internal air flow passage (9) of the outlet (3) This is preferred.

As the reference numeral 54, 54 is a motor for driving the stirrer 40, 56 denotes an inlet and 58 denotes an outlet.

Thus, in operation, when the drying chamber 1 is configured in a single shape, the contents are put into the drying chamber 1 through the inlet 56 and the inlet 56 is closed to close the drying chamber 1 with the external heat source. When the inside of the drying chamber 1 is heated, and the contents of the drying chamber 1 are stirred and mixed by driving the stirrer 40, the contents of the drying chamber 1 are increased while the contents are mixed by the outer stirring blade 46. Ascending on the inner wall and descending while touching the blocking bar 50 on the upper side, the inner stirring blade 48 is allowed to move downward in the inside of the outer stirring blade 46 by force, and the lowered contents are again outside As the rising by the stirring blade 46 is made repeatedly, stirring and mixing are made continuously. If the stirring mixture and the internal heating are continuously performed, the heating temperature of the contents continues to increase and the contents are heated and dried while the internal air is changed to a high temperature and high humidity state. The internal air is driven by the blower 7 to discharge the air. (3) is fed into the interior of the internal air flow passage (9), and once passing through the filter (60) to pass through the cooling condenser (11) in the state of removing dust. The hot and humid air is condensed instantaneously through the cooling condenser 11 to generate condensate, and the condensate is discharged to the outside via the drain 13, and the condensed water is removed while passing through the cooling condenser 11 to be cold and humid. The changed air is passed through the preheater (15) through the blower (7), and the internal air, which is changed to a high temperature and low humidity state again after being heated, is returned to the inside of the drying chamber (1) through the inlet (5). 3) The feeding is done downward in the relatively spaced apart state, and since it is preheated, the inside of the contents is naturally mixed in the state where the temperature difference between the high temperature and high humidity air is not large and the humidity and relative humidity The internal air having a high temperature is repeatedly operated by feeding it back to the internal air flow passage 9 through the outlet port 3, and eventually Moisture contained in the melt is discharged to the outside in the form of condensate from the cooling condenser 11 and the contents are continuously dried. When the drying process is completed as described above, the operation is stopped and the dried contents may be discharged to the outside through the discharge port 58.

Next, the form having a plurality of drying chambers (10, 20, 30), each of the drying chambers (10, 20, 30), as in the above-described single form may be made to be independently drying operation operation, for example For example, after the drying treatment is first performed from the drying treatment chamber 10, the drying chamber is first fed to the adjacent drying chamber 20 by the feeding mechanism 37 and the drying chamber is first performed during the drying treatment in the drying chamber 20. In 10), the drying treatment is performed at the same time as the first time, and the contents dried secondly in the drying chamber 20 are fed back to the adjacent drying chamber 30 by the feeding mechanism 35, and the drying chambers 10, 20, 30 All may be operated to simultaneously perform the first, second and third drying treatments, or in the drying chambers (10, 20), the primary drying treatment may be performed while putting the contents at the same time and communicating with each other. Primary In the state where the weight or volume of the contents is reduced to reduce the weight, the volume of the dried contents is first fed from the two drying chambers (10, 20) to the remaining drying chambers (30). In the meantime, in the first drying chambers 10 and 20, new contents may be added and the drying process may be performed simultaneously.

As described above, according to the drying apparatus of the present invention, the internal air is circulated in the closed state only in the closed state from the external air of the drying chamber (1) (10, 20, 30), but in the closed circulation process. By cooling and condensing high temperature and high humidity air to discharge only condensate to the outside, the drying operation is performed and the odor generated from the contents during the drying operation is essentially blocked, and the internal high temperature and high humidity air is cooled for drying purposes. Rather than returning the low temperature and humidity air that is changed after the condensation process to the drying chamber immediately, it is possible to improve the drying efficiency by returning to a condition that meets the drying conditions during the preheating process.

In addition, the inner stirrer 40 is configured to allow the inner and outer stirring blades 48 and 46 to raise and lower the contents, and the blocking bar 50 is installed to smoothly stir the mixing and raising and lowering of the contents. It can be made, by installing a plurality of drying chamber (10, 20, 30) in which the cooling condensation process is interlocked to enable simultaneous or successive drying operation sequentially, to maintain the heating temperature conditions according to the drying conditions By allowing the waste heat to be recycled, the drying efficiency can be further increased and economically utilized.

Furthermore, the outlets 3 of the internal air discharged from the inside of the drying chambers 1, 10, 20, and 30 to the outside and the inlets 5 returning to the inside of the drying chamber after the closed circulation operation for the cooling condensation process. Position the filter at a long distance in the up, down direction, inward and outward direction, and install a replaceable filter 60 in the middle of the outer inner air flow passage 9 of the outlet port 3 so that the exhaust air and the inlet air flow during the closed circulation operation. It is possible to suppress the mixing of air to the maximum and to eliminate the phenomenon in which the internal air flow path 9 is blocked in advance, thereby making the drying operation more smooth and improving the drying efficiency.

Claims (8)

In the conventional drying apparatus for putting the contents to be dried in the drying chamber (1), and heating the drying chamber (1) and stirring the contents to dry the contents, Internal air flow passages (9) having an outlet (3) and an inlet (5) of internal air, respectively, in a drying chamber (1) containing the contents and having a blower (7) between the outlet (3) and the inlet (5). To form, but the drying chamber (1) and the internal air flow path (9) is formed to enable a closed circulation in a state blocked from the outside, by installing a cooling condenser (11) in the middle of the internal air flow path (9) The condensed water generated in the cooling condenser 11 is discharged to the outside through the drain 13, and the preheater 15 is installed in the middle of the internal air flow passage 9 between the cooling condenser 11 and the inlet 5. A vertical drying apparatus of a closed circulation method. The method according to claim 1, The cooling medium supplied to the cooling condenser 11 is capable of circulating feeding, but when viewed from the cooling condenser 11, the cooling medium flows from the discharge part 31 of the internal air and enters the inlet of the internal air 33. Closed circulation type drying apparatus, characterized in that configured to return through). The method according to claim 1, The stirrer 40 installed inside the drying chamber 1 has an outer stirring blade 46 on the fixed frame 44 about the central axis 42 in the form of a rising screw, and the inner stirring blade 48. It is configured in the form of a falling screw, the closed-circulation type drying apparatus, characterized in that the blocking bar 50 for blocking the rise of the contents in the upper position of the inner and outer stirring blades (48,46). The method according to claim 1, The drying chamber is composed of a single or a plurality of drying chambers (1), (10, 20, 30), in the case of a plurality of forms, the plurality of adjacent drying chambers (10, 20, 30) between the internal communication path (35, 37) is installed in a closed circulation type drying apparatus, characterized in that the configuration is configured to enable the feeding of the contents. The method according to claim 1 or 4, Regardless of whether the drying chamber 1 (10, 20, 30) is single or plural, the heat source of the preheater 15 is supplied from the heat exchanger 39 by installing a heat exchanger 39 in the flue of the boiler 17. Closed circulation type drying apparatus, characterized in that made possible to be utilized by the heating medium to recycle the waste heat. The method according to claim 5, In the center of the preheater 15, the heating medium fed to the preheater 15 is introduced from the discharge part 62 of the internal air to be returned through the inlet part 53 of the internal air. Vertical drying device of closed circulation type. The method according to claim 1, Between the cooling condenser 11 and the preheater 15, a blower 7 is installed in the internal air flow path 9 so as to isolate the cooling condenser 11 and the preheater 15 from each other and force the internal air to be forcedly fed. Closed circulation type drying apparatus, characterized in that consisting of. The method according to claim 1 or 4, The outlet 3 is located in the drying chamber 1 so that the positions of the internal air outlet 3 and the inlet 5 of the drying chamber 1, 10, 20, and 30 are located at a long distance in the up, down direction, and inward and outward directions. It is located in the upper inner wall of the (10, 20, 30) a plurality, the inlet (5) is positioned so that its end is adjacent to the blocking bar 50 and the central axis 42 of the stirrer 40, the outlet (3) The closed-circulation type dry type drying apparatus, characterized in that a filter 60 that is replaceable from the outside is installed in the middle of the outer inner air flow passage 9.