KR20230083384A - Drying system usinga exhaust gas's heat - Google Patents

Abstract

The present invention relates to a drying system using the heat of exhaust gas, and more specifically, to a drying system which enables a specific drying object to be dried using a heat source of exhaust gas generated during operation of an engine generator. The drying system of the present invention comprises an engine generator (10), a drying device (20), a dried object tank (40), a condenser (50), a cooling water tank (70), a condensed water tank (60), a cooling tower (80), a reduction device (90), and a wet cleaning device (100).

Description

Drying system using exhaust gas heat {DRYING SYSTEM USINGA EXHAUST GAS'S HEAT}

The present invention relates to a drying system using exhaust gas heat, and more specifically, to a drying system using exhaust gas heat generated while operating an engine generator to dry a specific drying object by using exhaust gas heat. It is about the drying system used.

Drying is one of the common tasks in the industry, and drying equipment and energy for heating are essential for drying.

In particular, drying treatment of food waste, livestock carcasses, livestock manure, and sludge at sewage treatment plants has high moisture content, so there is little or no added value, and energy costs are getting higher due to environmental and carbon problems in modern society. This is a lot.

Therefore, the present applicant intends to propose a drying system that uses exhaust gas heat discharged at 300 to 500° C. after explosion of an internal combustion engine as a heat source of a drying device.

On the other hand, Patent Registration No. 10-1839447 describes a sludge drying heat treatment device.

The above technology relates to a sludge drying heat treatment apparatus for drying sludge containing moisture in the process of torrefying or carbonizing the sludge in a high-temperature semi-vacuum state to form a raw material for renewable energy.

To this end, the above-described technology includes a sludge supply unit for discharging sludge at a constant speed, a driving unit for transporting the discharged sludge at a constant speed, a heat treatment unit for heat-treating and drying the transferred sludge, and heat treatment of the sludge through the heat treatment unit It includes an exhaust unit for discharging exhaust gas and moisture generated in the process to the outside or to at least one side of the sludge supply unit, and a heat source supply unit for supplying hot air to the heat treatment unit, wherein the heat treatment unit is opposed to each other A heat treatment box having an inlet and an outlet in each direction, one end coupled to the outlet side and the other end coupled to the heat source supply unit to transfer the hot air supplied through the heat source supply unit to the heat treatment unit side, and heat treated sludge at the same time as the heat source It comprises a heat treatment tube for transferring to the discharge unit provided in the supply unit.

Registered Patent Publication No. 10-1839447 (Announced on March 16, 2018) Registered Utility Model Publication No. 20-0294897 (Announced on November 13, 2002) Publication No. 10-2010-0065656 (2010.06.17.) Registered Patent Publication No. 10-1613129 (Announced on April 18, 2016)

An object of the present invention relates to a drying system using exhaust gas heat, and more specifically, exhaust gas that allows drying of a specific building by using a heat source of exhaust gas generated while operating an engine generator. It is to provide a drying system using the heat of.

In order to achieve the above object, a drying system using exhaust gas heat according to the present invention includes an engine generator 10; a dryer 20 receiving exhaust gas from the engine generator and supplying dry matter from the dry matter supply tank 30; a dried product tank 40 receiving dried products dried in the dryer 20; Exhaust gas used for drying in the dryer 20; a condenser 50 receiving supply of water vapor generated when the dryer 20 is heated by the high-temperature exhaust gas and distilled moisture; a cooling water tank 70 supplying cooling water to the condenser 50; a condensate water tank 60 receiving condensed water obtained by condensing the water vapor of the condenser 50 by cooling water; a cooling tower (80) receiving the remaining cooling water used in the condenser (50) and circulating it back to the cooling water tank (70); a reduction device 90 for receiving the exhaust gas of the condenser 50 and removing nitrogen oxide; It is characterized in that it is configured to include; a wet cleaner 100 that receives the exhaust gas from which nitrogen oxides are removed from the reduction device 90 and performs cleaning in a wet method.

At this time, it has the predetermined tank shape,

On the lower side, an end portion 31 configured to have an inclined direction that gathers downward is formed,

A transfer roller 32 operated by receiving power from a motor is formed inside the dry matter supply tank 30 in the downward direction, and a dry matter discharge unit 33 at the end of the end 31 allows the dried matter to fall. ) is formed,

A piston pump 34 configured to have a vertical direction is configured to one side of the dry matter discharge unit 33, and it is characterized in that it pushes the dried matter that has fallen through the dry matter discharge unit 33.

In addition, the dryer 20,

with the base 21; a rotating drum 22 installed rotatably on the base 21 and rotated by receiving power from a motor; an inlet module 23 coupled to the inlet end 22a of the rotary drum 22 and supplied with dry matter from the dry matter supply tank 30; A discharge module 26 coupled to the discharge end 22b of the rotary drum 22 to perform a discharge function; the inlet module 23 protrudes downward and opens, and from the engine generator 10 It includes an exhaust inlet 23a receiving exhaust gas, and one side receiving dry matter from the dry matter supply tank 30 of the inlet module 23 is open, but the end cover 24 is coupled using a bolting It is closed, and the end cover 24 includes a through hole having a predetermined size on one side, and the dry matter transport path 25 is penetrated and coupled to the through hole.

In addition, at the inlet end 22a, a first bracket b1 bent in a '┐' shape is integrally formed or formed by welding or bolting, and an 'A' shape is formed on one side of the inlet module 23 in the same direction. A second bracket (b1) bent to is formed,

The lateral protrusion of the second bracket (b2) is positioned lower than the lateral protrusion of the first bracket (b1) so that a predetermined space (a) is formed. (a) is characterized in that the first bracket (b1) protruding in the lateral direction is positioned so that it is coupled.

In addition, the wet cleaner 100,

an accommodating tank 101 configured at the bottom side to accommodate washing water containing contaminants according to the spraying of washing liquid; a washing tank 102 formed of one or more layers above the storage tank 101; a blower 103 configured on one side of the wet cleaner 100 to supply air into the wet cleaner 100 and to shape the direction of the supplied air; a cleaning solution supply unit 104 for supplying a cleaning solution to the wet cleaner 100; An upper discharge unit 105 for discharging carbon dioxide purified by washing in the wet cleaner 100;

The cleaning solution supply unit 104 includes a supply pipe 104a for supplying a cleaning solution; A spray pipe 104b connected to one side of the supply pipe 104a, extending into the cleaning tank 102 of the wet cleaner 100, and having a plurality of nozzles.

According to the drying system using the heat of the exhaust gas according to the present invention, it is possible to dry a specific building by using the heat source of the exhaust gas generated while operating the engine generator, thereby reducing environmental pollution caused by the emission of the exhaust gas. It can be prevented, and furthermore, it has an energy saving effect by not having to artificially create energy for drying.

In particular, the drying system according to the present invention, unlike general dryers, can further increase drying efficiency because drying materials and exhaust gases are simultaneously injected into a horizontally installed rotating circular container and directly dried.

1 is a block diagram of a drying system using exhaust gas heat according to the present invention.
2 shows a drying material supply tank of a drying system using exhaust gas heat according to the present invention.
Figure 3 shows the dryer of the drying system using the heat of the exhaust gas according to the present invention according to the present invention.
4 shows a wet cleaner of a drying system using exhaust gas heat according to the present invention.

The terms or words used in this specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors can properly define the concept of terms in order to best explain their invention. Based on the principle, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

Therefore, since the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, various equivalents that can replace them at the time of the present application It should be understood that there may be variations and examples.

Hereinafter, prior to description with reference to the drawings, matters that are not necessary to reveal the subject matter of the present invention, that is, known configurations that can be added obviously by those skilled in the art, are not shown or specifically described. reveal the sound

The present invention relates to a drying system using exhaust gas heat, and more specifically, to a drying system using exhaust gas heat generated while operating an engine generator to dry a specific drying object by using exhaust gas heat. It is about the drying system used.

The drying system using the heat of the exhaust gas according to the present invention will be described through the accompanying drawings.

1 is a block diagram of a drying system using exhaust gas heat according to the present invention.

The present invention according to Figure 1 of the accompanying drawings, the engine generator 10 for generating exhaust gas; a dryer 20 receiving exhaust gas from the engine generator and supplying dry matter from the dry matter supply tank 30; a dried product tank 40 receiving dried products dried in the dryer 20; Exhaust gas used for drying in the dryer 20; a condenser 50 receiving water vapor generated by distilling water as it is heated by the high-temperature exhaust gas when the dryer 20 is driven; a cooling water tank 70 supplying cooling water to the condenser 50; a condensate water tank 60 receiving condensed water obtained by condensing the water vapor of the condenser 50 by cooling water; a cooling tower (80) receiving the remaining cooling water used in the condenser (50) and circulating it back to the cooling water tank (70); a reduction device 90 for receiving the exhaust gas of the condenser 50 and removing nitrogen oxide; It is configured to include; a wet cleaner 100 receiving the exhaust gas from which nitrogen oxides have been removed from the reduction device 90 and performing cleaning in a wet method.

According to this, in the new and renewable energy business, which produces oil by pyrolyzing waste plastic and uses the oil as fuel for power generation, 60-70% of the input energy is a high-temperature gas of 300-600℃. It is expected that it will be possible to maximize the efficiency of carbon energy use and minimize the drying cost by using the energy emitted to the atmosphere as drying energy.

At this time, the condenser 50 has a structure for discharging condensed water formed on the lower side of the structure, and since exhaust gas is lighter than condensed water, a structure for discharging exhaust gas is formed on one upper side of the structure.

First, the engine generator 10 is a generator for driving an engine, and any configuration capable of discharging exhaust gas is sufficient.

The dry matter supply tank 30 is amplified in FIG. 2 of the accompanying drawings.

2 shows a drying material supply tank of a drying system using exhaust gas heat according to the present invention.

The dry matter supply tank 30 according to FIG. 2 of the accompanying drawings includes a lid that is opened and closed on one side of the upper portion so that dry matter can be freely put into the dry matter supply tank 30.

In addition, the dry matter supply tank 30 has a predetermined tank shape, but an end portion 31 configured to have an inclined direction that gathers downward is formed on the lower side thereof.

In addition, a conveying roller 32 operated by receiving power from a motor is formed inside the dry matter supply tank 30 in the downward direction, and a dry matter discharge unit for dropping dry matter at the end of the end 31. (33) is formed.

A piston pump 34 configured to have a vertical direction is configured on one side of the dry matter discharge unit 33, and the piston pump 34 is a piston supply, in a vertical direction of the dry matter discharge unit 33 An operating piston is provided to push the dried matter that has fallen through the dry matter discharge unit 33 at regular intervals.

The dry matter accommodated in the dry matter supply tank 30 is supplied to the dryer 30 by the piston pump 34 .

On the other hand, since the transfer roller 32 can be clearly configured by a person skilled in the art even if detailed configurations are omitted, detailed descriptions thereof will be omitted.

The dryer is amplified in FIG. 3 of the accompanying drawings.

Figure 3 shows the dryer of the drying system using the heat of the exhaust gas according to the present invention according to the present invention.

The dryer 20 according to FIG. 3 of the accompanying drawings includes a base 21; a rotating drum 22 installed rotatably on the base 21 and rotated by receiving power from a motor; an inlet module 23 coupled to the inlet end 22a of the rotary drum 22 and supplied with dry matter from the dry matter supply tank 30; and a discharge module 26 coupled to the discharge end 22b of the rotary drum 22 to perform a discharge function.

At this time, the intake module 23 protrudes downward and includes an open exhaust inlet 23a, and the exhaust inlet 23a receives exhaust gas from the engine generator 10.

In addition, one side of the inflow module 23 receiving dry matter from the dry matter supply tank 30 is opened, but the end cover 24 is coupled and closed using bolting.

The end cover 24 includes a through hole having a predetermined size on one side, and the dry matter transfer path 25 is passed through and coupled to the through hole. The dry matter conveying path 25 extends to the inner side of the rotary drum 22 .

At this time, an example in which the inlet module 23 is coupled to the inlet end 22a is shown through the enlarged view of FIG. 3 .

First, the inlet end 22a is formed with a first bracket b1 bent in a '┐' shape integrally or by welding or bolting, and is formed in an 'A' shape on one side of the inlet module 23 in the same direction. A bent second bracket (b1) is formed.

At this time, the lateral protrusion of the second bracket (b2) is positioned lower than the lateral protrusion of the first bracket (b1) so that a predetermined space (a) is formed. The lateral protrusion of the first bracket b1 is positioned in the space a.

In addition, in the space (a), the structure protruding in the lateral direction of the first bracket (b1) is located, and the remaining space includes sealing to improve airtightness.

In addition, the first bracket (b1) and the second bracket (b2) can be coupled using a bolt structure such as a long bolt.

This may be configured in the same way as the configuration of the discharge module 26.

However, a screw may be included inside the discharge end 22b of the rotary drum 22 to help discharge the dried material.

In addition, in the case of the discharge module 26, dried materials are discharged through an open configuration protruding downward, and the discharged dried materials are supplied to the dry matter tank 40.

In addition, the exhaust gas supplied to the dryer 20 and used as a heat source is supplied to the condenser 50 along the water vapor line of FIG. 1 through the configuration of the discharge module 26 opened in the lateral direction.

At this time, as drying is performed through the high-temperature exhaust gas in the dryer 20, water vapor is generated, and this water vapor is supplied to the condenser 50 together with the exhaust gas.

At this time, the condenser 50 is condensed using the cooling water supplied through the cooling water tank 70 as described above and discharged as condensed water to the condensation water tank 60, and the used cooling water is condensed into the cooling tower 80 using a pump configuration. ), and the circulated cooling water is supplied from the cooling tower 80 to the cooling water tank 70 again to be reused.

On the other hand, the exhaust gas present in the condenser 50 is supplied to the reduction device 90.

The reduction device 90 can be applied to any nitrogen oxide reduction device of the SCR method, and an example of such a reduction device can be a device searched on an Internet line.

The exhaust gas, in which nitrogen oxides are reduced by the reduction device 90, is finally transported to the wet cleaner 100, cleaned, and then discharged into the air.

The wet cleaner 100 will be described with reference to FIG. 4 of the accompanying drawings.

4 shows a wet cleaner of a drying system using exhaust gas heat according to the present invention.

The wet cleaner 100 according to the present invention according to FIG. 4 of the accompanying drawings includes a water tank 101 configured at the bottom to accommodate washing water containing contaminants according to washing liquid spraying; a washing tank 102 formed of one or more layers above the storage tank 101; a blower 103 configured on one side of the wet cleaner 100 to supply air into the wet cleaner 100 and to shape the direction of the supplied air; a cleaning solution supply unit 104 for supplying a cleaning solution to the wet cleaner 100; and an upper discharge unit 105 for discharging carbon dioxide that has been cleaned and purified in the wet cleaner 100.

At this time, it should be understood that the receiving tank 101 and the washing tank 102 may have a communication integral structure and are divided into zones.

In addition, the blower 103 makes the direction of the air supplied from bottom to top.

On the other hand, the supply line of the above-described structure can be obviously configured by a person skilled in the art.

In addition, the washing liquid supply unit 104 includes a supply pipe 104a for supplying a washing liquid; A spray pipe 104b connected to one side of the supply pipe 104a, extending into the cleaning tank 102 of the wet cleaner 100, and having a plurality of nozzles.

At this time, when the cleaning tank 102 of the wet cleaner 100 has one or more layers, the spray pipe 104b is extended for each layer.

In addition, the supply pipe 104a includes a valve for receiving a cleaning liquid from a cleaning liquid tank (not shown); A pump assisting in the supply of the cleaning solution may be further included.

On the other hand, the other side of the supply pipe 104a is connected to one side of the storage tank 101 by a pipe, and a check valve and a filter are included on one side of the connected pipe, thereby containing contaminants received in the storage tank 101. The cleaning solution can also be reused.

In addition, the container 101 may include a discharge port 101a on the other side to help discharge when the amount of cleaning solution inside the container 101 is too large.

In addition, one side of the cleaning tank 102 includes a suction port 102a so that exhaust gas having reduced nitrogen oxides can be supplied to the wet cleaner 100 . The exhaust gas supplied in this way may be transported from the lower side to the upper side by the induction of the blower 103 .

In addition, a filter 104c may be configured on the upper side of the spray pipe 104b. Such a filter 104c may include a separate frame and be fixed inside the wet cleaner 100.

Such a filter 104c allows gas from which contaminants are removed by spraying the cleaning solution to pass through the filter 104c so that remaining contaminants are removed once again.

Meanwhile, the wet cleaner 100 may further include components shown in [Table 1].

The wet cleaner 100 according to [Table 1] includes a concave groove 2 having a predetermined length on the side wall of the space between the filters 104c located below one of the spray pipes 104b.

In addition, a second filter 3 having a mesh size smaller than that of the filter 104c is included at a position corresponding to the concave groove 2.

The concave groove 2 is formed along the inner wall of the washing tank 102, and the second filter 3 is configured to have a size corresponding to the size of the concave groove 2.

At this time, the cylinder 4 is connected from the upper surface of the second filter 3 to the upper end of the concave groove. The second filter 3 can be moved up/down on the concave groove 2 by this cylinder 4 .

In addition, at the lower end of the concave groove 2, a support body 6 including a groove portion concave from the upper side to the lower side is configured, and the lower surface of the second filter 3 has a pressing body 7 bent in an 'L' shape. ; is composed of

At this time, the area protruding downward of the pressing body 7 is inserted into the groove part of the support body 6, and the spring (see Xbox in [Table 1]) is included in the groove part.

In addition, when the washing tank 102 of the wet cleaner 100 has the above-described structure, a discharge hole 5 is included on a sidewall of the washing tank 102 corresponding to an upper side of the filter 104c, The discharge hole 5 includes a check valve 5a.

At this time, the lowermost surface of the discharge hole 5 is positioned lower than the uppermost surface of the filter 104c.

As configured as described above, when contaminants accumulate in the filter 104c of the wet cleaner 100, the cleaning liquid is sprayed using the spray pipe 104b when the wet cleaner 100 is not in use, but the cylinder 4 ) is driven to lower the second filter 3, and the foreign matter on the upper surface of the filter 104c is discharged like a cleaning liquid by the pressure generated by the pressing body 7, according to the lowering of the second filter 3. It is discharged through the hole (5). At this time, the check valve 5a is operated together with discharge using the discharge hole 5 so that the discharge hole 5 is normally closed and then opened.

At this time, as the pressing body 7 has a predetermined length and extends horizontally with the second filter 3, the mesh network of the second filter 3 has a through hole to prevent low pressure from being generated. , At the same time, when the second filter 3 is configured to be completely blocked, it is possible to prevent gas movement and excessive pressure generation.

What has been described using the drawings above is only the main points of the present invention, and it is obvious that the present invention is not limited to the configuration of the drawings as various designs are possible within the technical scope.

10: engine generator
20: dryer
21: Base
22: rotary drum
22a: inlet end
22b: discharge end
23: intake module
23a: exhaust inlet
24: end cover
25: dry matter transport path
26: discharge module
30: dry matter supply tank
31: end
32: transfer roller
33: dry matter discharge unit
34: piston pump
40: dry matter tank
50: condenser
60: condensate tank
70: cooling water tank
80: cooling tower
90: reduction device
100: wet cleaner
101: water tank
101a: outlet
102: cleaning tank
102a: inlet
103: blower
104: cleaning solution supply unit
104a: supply pipe
104b: spray pipe
104c: filter
105: top discharge

Claims (5)

An engine generator 10;
a dryer 20 receiving exhaust gas from the engine generator and supplying dry matter from the dry matter supply tank 30;
a dried product tank 40 receiving dried products dried in the dryer 20;
Exhaust gas used for drying in the dryer 20;
a condenser 50 receiving supply of water vapor generated when the dryer 20 is heated by the high-temperature exhaust gas and distilled moisture;
a cooling water tank 70 supplying cooling water to the condenser 50;
a condensate water tank 60 receiving condensed water obtained by condensing the water vapor of the condenser 50 by cooling water;
a cooling tower (80) receiving the remaining cooling water used in the condenser (50) and circulating it back to the cooling water tank (70);
a reduction device 90 for receiving the exhaust gas of the condenser 50 and removing nitrogen oxide;
A drying system using heat of exhaust gas, characterized in that it is configured to include a; wet cleaner 100 receiving the exhaust gas from which nitrogen oxides have been removed from the reduction device 90 and performing cleaning in a wet manner.
The method of claim 1,
It has a predetermined tank shape,
On the lower side, an end portion 31 configured to have an inclined direction that gathers downward is formed,
A transfer roller 32 operated by receiving power from a motor is formed inside the dry matter supply tank 30 in the downward direction, and a dry matter discharge unit 33 at the end of the end 31 allows the dried matter to fall. ) is formed,
A piston pump 34 configured to have a vertical direction is configured to one side of the dry matter discharge unit 33 to push the dried matter that has fallen through the dry matter discharge unit 33, characterized in that, the heat of the exhaust gas Drying system using
The method of claim 1,
The dryer 20,
with the base 21;
a rotating drum 22 installed rotatably on the base 21 and rotated by receiving power from a motor;
an inlet module 23 coupled to the inlet end 22a of the rotary drum 22 and supplied with dry matter from the dry matter supply tank 30;
A discharge module 26 coupled to the discharge end 22b of the rotary drum 22 to perform a discharge function; including,
The intake module 23 protrudes downward and is opened, and includes an exhaust inlet 23a receiving exhaust gas from the engine generator 10,
One side receiving dry matter from the dry matter supply tank 30 of the inlet module 23 is open, but the end cover 24 is coupled and closed using a bolting connection,
The drying system using heat of exhaust gas, characterized in that the end cover 24 includes a through hole having a predetermined size on one side, and the dry matter transport path 25 is penetrated and coupled to the through hole.
The method of claim 3,
At the inlet end 22a, a first bracket b1 bent in a '┐' shape is integrally formed or formed by welding or bolting, and one side of the inlet module 23 is also bent in an 'A' shape in the same direction. A second bracket (b1) is formed,
The lateral protrusion of the second bracket (b2) is positioned lower than the lateral protrusion of the first bracket (b1) so that a predetermined space (a) is formed. A drying system using heat of exhaust gas, characterized in that (a) is coupled by positioning the lateral protrusion of the first bracket (b1).
The method of claim 1,
The wet cleaner 100,
an accommodating tank 101 configured at the bottom side to accommodate washing water containing contaminants according to the spraying of washing liquid;
a washing tank 102 formed of one or more layers above the storage tank 101;
a blower 103 configured on one side of the wet cleaner 100 to supply air into the wet cleaner 100 and to shape the direction of the supplied air;
a cleaning solution supply unit 104 for supplying a cleaning solution to the wet cleaner 100; An upper discharge unit 105 for discharging carbon dioxide purified by washing in the wet cleaner 100;
The washing liquid supply unit 104,
a supply pipe 104a for supplying a cleaning liquid; A spray pipe (104b) connected to one side of the supply pipe (104a) and extending into the cleaning tank (102) of the wet cleaner (100) and having a plurality of nozzles; drying system.

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