KR20160060209A - Desulfurization method and apparatus and waste-to-energy system using the same - Google Patents

Abstract

According to an embodiment of the present invention, a desulfurization controlling apparatus for a wasted resource energizing system includes: a reactor for combusting wastes; an exhaust gas processor for removing harmful substances from exhaust gas discharged from the reactor; an atom analyzer for receiving a supply of a part of the wastes applied to the reactor, as a specimen; and a controller for controlling a supply amount of desulfurization agents to be supplied to the exhaust gas processor, wherein the atom analyzer measures a content of sulfur (S) within the specimen and transmits the measured value to the controller, and the controller controls a supply amount of the desulfurization agents on the basis of the received measured value. According to an embodiment of the present invention, a content of sulfur is measured by sampling some of wastes in real-time, thereby adjusting a desulfurization agent to be supplied to the exhaust gas processor to a proper amount.

Description

Description: TECHNICAL FIELD The present invention relates to a desulfurization control method and apparatus, and a desulfurization control apparatus and a waste-

The present invention relates to a desulfurization control method and apparatus and a waste resource energization system using the same, and more particularly, to a desulfurization control method and apparatus and a waste resource energization system using the same. And a waste resource energy system using the same.

Recently, as environmental problems have emerged and eco - friendly technologies have attracted attention, technologies for energizing waste resources have been actively studied. As one of technologies for waste resource energy technology, various wastes such as municipal wastes and industrial wastes are used as an energy source to replace coal or coal.

Since flue gas generated in the reactor through the combustion process in the reactor after injecting waste resources into the reactor of the waste resource energy system contains harmful substances such as sulfur oxides and nitrogen oxides, the exhaust gas is discharged to the outside of the system There is a need for a post-treatment process to remove harmful substances. For this purpose, the present waste energy system has a limestone slurry as a desulfurizing agent to remove sulfur oxides, for example, in order to remove sulfur oxides. However, since the amount of sulfur oxides generated after the combustion reaction varies for various kinds of wastes such as municipal waste, industrial waste, livestock waste, etc., the supply amount of the desulfurizing agent to be supplied to the flue gas treating unit may be different However, in the conventional waste resource energy system, the content of sulfur oxides can not be grasped in real time, and a large amount of limestone slurry is added to remove sulfur oxides. Therefore, in the conventional system, excessive desulfurizing agent or cleaning agent is added to remove harmful substances, resulting in process inefficiency and cost increase.

On the other hand, when the waste is supplied to the reactor of the waste resource energy system, the amount of air or steam required for the combustion reaction in the reactor varies depending on the type of waste. It is preferable to inject appropriate air or steam in accordance with the type of waste in the reaction. However, when a plurality of types of waste are mixed at random and supplied at a time, the components of the mixed waste are different according to time, so that appropriate air or steam It is not easy to adjust the amount to adjust the optimum operating conditions. If the optimal operating conditions are not met in this reaction, the combustion reaction may not be performed well or the exhaust gas after the reaction may contain a lot of harmful substances.

Korean Utility Model No. 2011-0014484 (published on Mar. 11, 2011) discloses a method of measuring the physical property data of various types of coal fly ash by measuring instrument and storing them in a database to determine the type of fly ash supplied to the inside of the boiler The control module controls the operation of the boiler according to the optimal operation condition of the boiler derived through the boiler simulator, thereby enabling the boiler to be operated under the optimal operating condition regardless of the type of the coal fly ash supplied.

However, since the above-mentioned prior art documents have to measure the physical properties according to the types of coal and store them in advance in the database, it can not cope with the real-time component change of the energy source supplied to the reactor and the physical property data is limited to coal. There is a problem in that it is impossible to directly measure the physical properties of various kinds of wastes and the mixture ratio and store them in a database because there is a wide variety of wastes such as municipal wastes, industrial wastes, and livestock wastes .

According to an embodiment of the present invention, there is provided a desulfurization control apparatus for a waste resource energy system capable of controlling an amount of desulfurizing agent to be supplied to an exhaust gas treating unit by sampling a part of waste in real time to measure a sulfur content.

According to one embodiment of the present invention, a waste resource energy system capable of automatically controlling the amount of air and / or steam to be supplied into the reactor by sampling a part of waste to be used as an energy source and measuring the amount of fixed carbon to provide.

According to one embodiment of the present invention, even when various wastes such as municipal wastes, industrial wastes, livestock wastes are used, it is possible to control the amount of air and / or steam to be supplied to the reactor, And a waste resource energy system capable of efficiently removing harmful substances in the flue gas.

According to an embodiment of the present invention, there is provided a desulfurization control apparatus for a waste resource energy system, comprising: a reactor for combusting waste; An exhaust gas treatment unit for removing harmful substances in the exhaust gas discharged from the reactor; An element analyzer for receiving a part of the waste supplied to the reactor as a sample; And a control unit for controlling a supply amount of the desulfurizing agent to be supplied to the flue gas treating unit, wherein the element analyzer measures the sulfur content in the sample and transmits the measurement value to the control unit, And the amount of the desulfurizing agent supplied is controlled based on the value of the desulfurizing agent supplied to the desulfurizing unit.

According to an embodiment of the present invention, there is provided a waste resource energization system comprising: a reactor for combusting waste; An exhaust gas treatment unit for removing harmful substances in the exhaust gas discharged from the reactor; A thermogravimetric analyzer receiving a part of the waste supplied to the reactor as a first sample; An element analyzer for receiving a part of the waste supplied to the reactor as a second sample; A first controller for controlling an amount of at least one of air and steam to be supplied to the reactor; And a second controller for controlling the amount of the desulfurizing agent to be supplied to the exhaust gas processor, wherein the first controller controls at least one of air and steam based on the amount of the fixed carbon in the first sample measured by the thermogravimetric analyzer Wherein the second control unit controls the supply amount of the desulfurizing agent based on the sulfur (S) content in the second sample measured by the element analyzer do.

According to an embodiment of the present invention, there is provided a desulfurization control method in a waste resource energy system including a reactor and an exhaust gas treatment unit for removing harmful substances in the exhaust gas discharged from the reactor, Supplying the sample to the element analyzer; Measuring sulfur (S) content in the sample in the element analyzer; And controlling the supply amount of the desulfurizing agent to be supplied to the exhaust gas treating unit based on the measured sulfur content.

According to an embodiment of the present invention, the desulfurizing agent to be supplied to the flue gas treating unit can be adjusted to an appropriate amount by sampling a part of the waste in real time and measuring the sulfur content.

According to an embodiment of the present invention, a part of the waste is sampled in real time and the amount of fixed carbon is measured to inject the air and / or steam amount necessary for the combustion reaction of the reactor

According to one embodiment of the present invention, even when various kinds of wastes such as municipal wastes, industrial wastes, livestock wastes are supplied to the waste resource energy system, samples are sampled and analyzed in real time in response to changes in the components of the waste wastes, The amount of air and / or steam required for the combustion reaction of the flue gas can be appropriately adjusted to provide an optimum operating condition, and at the same time, the desulfurizing agent can be removed by using only a proper amount of sulfur oxide when removing the sulfur oxide from the flue gas treating unit.

1 is a block diagram for explaining a desulfurization control apparatus according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating an exemplary control method using a desulfurization control apparatus according to an embodiment of the present invention. FIG.
3 is an exemplary block diagram of a waste resource energization system to which a desulfurization control apparatus according to an embodiment of the present invention can be applied;
FIG. 4 is a flow chart for explaining an exemplary energy conversion method using the waste resource energy system of FIG. 3;
FIG. 5 is a block diagram for explaining a waste resource energy system according to an embodiment of the present invention; FIG.
6 is a flowchart illustrating an exemplary energy conversion method using a waste resource energy system according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Where the terms first, second, etc. are used herein to describe components, these components should not be limited by such terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprise" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, it will be appreciated by those skilled in the art that the present invention may be understood by those skilled in the art without departing from such specific details. In some cases, it should be mentioned in advance that it is common knowledge in describing an invention that parts not significantly related to the invention are not described in order to avoid confusion in explaining the present invention.

1 is a block diagram for explaining a desulfurization control apparatus according to an embodiment of the present invention. The desulfurization control apparatus according to the illustrated embodiment may include a reactor 10, an exhaust gas processing unit 20, an element analyzer 30, and a control unit 40.

The reactor 10 is a combustion device for burning waste, and various kinds of wastes (mixed waste) can be supplied and burned. The various kinds of waste such as municipal solid waste (MSW: Municipal Solid Waste), industrial wastes such as biomass, ASR, livestock waste, and sludge Or the like. Such multibranched wastes may be used as a combustion source in place of or in place of coal in a power plant, or may be used to produce fuel gas by gasification in a gasifier. Generally, the terms "waste resource" and "waste" are also distinguished from each other, but they will be used in the same meaning unless otherwise noted.

The reactor (10) is supplied with such mixed waste through a waste supply pipe (11).

The mixed waste is supplied to the reactor 10 through the waste supply pipe 11, and a part of the waste is supplied to the elementary analyzer 30 as a sample. For example, as shown in the drawing, the sample supply pipe 13 may be configured to branch off from the waste supply pipe 11 connected to the reactor 10, and the sample supply pipe 13 may be configured to be connected to the element analyzer 30. A valve 21 is interposed in the supply pipe 13 connected to the element analyzer 30 so that a part of the waste can be supplied to the element analyzer 30 at predetermined time intervals or as needed by opening and closing the valve 21.

In one embodiment, the waste supply pipe 11 may be embodied as a conveying means, such as a conveyor belt. At this time, a sample supply pipe 13 branched from the waste supply pipe 11 and supplying waste to the element analyzer 30 can also be realized as a conveyor belt. In this embodiment, by turning on / off the operation of the conveyor belt, It may be supplied to the element analyzer 30, and thus the valve 21 may not be required according to the embodiment. That is, the embodiment of FIG. 1 illustrates one exemplary arrangement and it will be appreciated that the feeding means for feeding the reactor 10 and the elemental analyzer 30 with waste may vary according to specific embodiments of the invention.

The reactor 10 is supplied with various kinds of wastes and burns the various wastes in a high temperature atmosphere. The inside of the reactor 10 is maintained in a high-temperature atmosphere for the combustion reaction. In one embodiment, the combustion zone 10 is maintained at a temperature above 900 degrees Celsius. For this, the inside of the reactor 10 can be heated at first by a heating means such as electric heating or a burner, and then the waste can be burned as a heat source by supplying various kinds of waste.

In addition, air or steam can be supplied into the reactor 10 as needed. For example, when the waste resource energy system of the present invention is used in a power plant, air can be injected into the reactor 10, and steam can be supplied into the reactor 10 when the waste resource energy system is applied to the gasifier. Alternatively, it is also possible to supply both air and steam to the reactor 10 as required.

The exhaust gas processing unit 20 processes the exhaust gas discharged from the reactor 10, for example, to cool the exhaust gas and remove harmful substances such as oxides of nitrogen, sulfur oxides and the like in the exhaust gas. In the illustrated embodiment, the flue gas treating section 20 includes a function of removing sulfur oxides in particular.

The sulfuric acid is removed from the exhaust gas by a wet process, a dry process, or the like. The dry method is a method of removing sulfur dioxide (SO ₂ ) by, for example, activated carbon, and has an advantage that water is not required without lowering the exhaust temperature. The wet method is a method in which calcium sulfite (CaSO ₃ ) is produced by bringing an absorption liquid in which a compound that is chemically easy to react with sulfur dioxide (SO ₂ ) in the flue gas, that is, caustic soda (sodium hydroxide) Is removed.

Hereinafter, the wet method will be described as an example. That is, limestone (CaCO ₃ ) is made into a slurry form and the limestone slurry is supplied to the flue gas treating section 20 through the supply pipe 19. In the flue gas treating section 20, the limestone slurry is brought into contact with the flue gas, and sulfur dioxide is removed by the following reaction formula to produce calcium sulfite.

2CaCO ₃ (s) + 2SO ₂ ? 2CO ₂ (g) + 2CaSO ₃ ↓

The element analyzer 30 receives a part of the waste supplied to the reactor 10 as a sample and analyzes the element of the sample. In general, an elemental analyzer is a device used to determine the elemental composition of organic and inorganic materials in a sample. The elemental analyzer is used to determine the content of carbon (C), hydrogen (H), nitrogen (N), sulfur (S), and oxygen And is used for information about the molecular formula of the unknown substance or the purity of the known substance. In the preferred embodiment of the present invention, the element analyzer 30 can measure the content of sulfur (S) in the sample and transmit the measured value to the control unit 40.

The control unit (40) regulates the amount of feed material to be supplied to the exhaust gas processing unit (20). The control unit 40 can control the supply amount of the desulfurizing agent (for example, limestone slurry) to be supplied to the exhaust gas processing unit 20 based on the sulfur content value of the sample analyzed by the element analyzer 30. [

A supply pipe 19 for supplying a desulfurizing agent to the exhaust gas treatment unit 20 is connected to the supply pipe 19 and a valve 31 for regulating the supply amount is interposed. The valve 31 can adjust the degree of opening / closing according to the control signal of the control unit 40. When the control unit 40 receives the measured value of the element analyzer 30, it determines the amount of the desulfurizing agent to be supplied to the flue gas treating unit 20 based on the measured value, and controls the opening and closing of the valve 31 to adjust the supplied amount .

Also, in one embodiment, the control unit 40 can also control the supply amount of the sample supplied to the element analyzer 30 through the sample supply pipe 13. In the illustrated embodiment, a valve 21 is installed in the sample supply pipe 13 branched from the waste supply pipe 11, and the control unit 40 is configured to control opening and closing of the valve 21, 40, it is possible to supply a part of the waste to the element analyzer 30 as a sample.

The period of supplying the waste sample to the element analyzer 30 under the control of the control unit 40 and / or the amount of the sample to be supplied may vary depending on the specific embodiment. Since the content of sulfur in the waste varies depending on the type of waste, it is preferable to sample the sample whenever the kind of waste supplied to the reactor 10 is changed or the mixing ratio of the mixed waste is changed. Alternatively, it is also possible to set some of the wastes to be sampled and supplied to the element analyzer 30 at predetermined time intervals such as several hours or several days.

On the other hand, as described above, the waste supply pipe 11 and the sample supply pipe 13 can be realized as conveying means such as a conveyor belt, and in this case, the valve 21 may not be required. Therefore, in this case, the control unit 400 is configured to control on / off of the conveyor belt, not the valve 21, so that it can control the operation of supplying the waste sample to the element analyzer 30 by controlling the conveyor belt.

According to the above configuration, the amount of the desulfurizing agent to be supplied to the flue gas treating unit 20 can be determined and the supply can be controlled by sampling a part of the waste and measuring the sulfur content. Thus, various kinds of waste such as municipal waste, industrial waste, It is possible to efficiently remove harmful substances in the exhaust gas discharged from the reactor 10, particularly sulfur oxides, even when the waste of the reactor 10 is supplied to the reactor 10 at the same time.

2 is a flowchart illustrating an exemplary control method using a desulfurization control apparatus according to an embodiment of the present invention.

First, in step S110, some of the waste to be supplied to the reactor is supplied to the element analyzer as a sample. In one embodiment, this step S110 may be performed when the type of waste to be supplied to the reactor 10 is changed or every predetermined sampling period.

1, for example, the control unit 40 can control the valve 21 to supply the sample to the element analyzer 30 every predetermined sampling period, and the control unit 40 controls the valve 40 based on the user input, It is also possible to supply the sample by controlling the sample 21.

When the sample is injected into the element analyzer 30, the sulfur content in the sample is measured in step S120. It is possible to calculate the appropriate amount of the desulfurizing agent necessary for the treatment of the flue gas from the measured sulfur content. Thus, in the step S130, the amount of the desulfurizing agent to be supplied to the flue gas treating section can be controlled. The amount of the desulfurizing agent supplied to the flue gas treating section 20 can be controlled by controlling the opening and closing of the valve 31 interposed in the desulfurizing agent supply pipe 19 connected to the flue gas treating section 20, for example. In one embodiment, the limestone slurry may be used as the desulfurizing agent, but is not limited thereto.

According to the desulfurization control method of the above-described waste resource energy system, a part of the waste is sampled to measure the sulfur content, and based on this, the desulfurizing agent to be supplied to the flue gas treating unit 20 is adjusted to an appropriate amount, Can be efficiently removed.

3 is an exemplary block diagram of a waste resource energization system to which a desulfurization control apparatus according to an embodiment of the present invention may be applied.

Referring to the drawings, a waste resource energization system according to an embodiment may include a reactor 10, an exhaust gas processing unit 20, a thermogravimetric analyzer 50, and a controller 60.

In FIG. 3, the reactor 10 and the exhaust gas treatment unit 20 have the same or similar functions as those of the reactor and the exhaust gas treatment unit shown in FIG. 1, respectively, and thus description thereof is omitted.

The reactor 10 is supplied with such mixed waste through the feed pipe 11. The mixed waste is supplied to the reactor 10 through the waste supply pipe 11, and some of the mixed waste is supplied to the thermogravimetric analyzer 50 as a sample. To this end, the sample supply pipe 15 is branched from the waste supply pipe 11 and connected to the thermogravimetric analyzer 50. The sample supply pipe 15 is provided with a valve 22 to open and close the valve 22, It is possible to supply a part of it to the thermogravimetric analyzer 50 at predetermined time intervals or as needed.

In one embodiment, the supply of the sample to the thermogravimetric analyzer 50 can be performed under the control of the control unit 60. That is, as shown in the drawing, the control unit 60 can control the opening and closing of the valve 22, and the valve 22 can be opened or closed at predetermined time intervals or in response to a user command to control the sample supply.

The cycle of supplying the waste sample to the thermogravimetric analyzer 50 and / or the amount of the sample to be supplied may vary depending on the specific embodiment. Preferably, the sample can be sampled whenever the type of waste supplied to the reactor 10 is changed or the mixing ratio of the multifunctional waste is changed, and alternatively, a portion of the waste may be sampled every predetermined period of time, Can be sampled and supplied to the thermogravimetric analyzer 50.

On the other hand, the valve 22 may not be needed in the alternative embodiment in which each of the waste supply pipe 11 and the sample supply pipe 15 is embodied as a conveying means such as a conveyor belt. In this case, the control unit 60 is configured to control the on / off of the conveyor belt, not the valve 22, so as to control the operation of supplying the waste sample to the thermogravimetric analyzer 50 by controlling the conveyor belt.

The thermogravimetric analyzer 50 measures the mass of the fixed carbon by heating and burning the waste sample supplied through the supply pipe 15. Generally, all kinds of wastes are decomposed into moisture, volatile matter, fixed carbon, and ash by combustion, and the thermogravimetric analyzer 30 puts the sample into a heating furnace And the mass change of the degradation product is measured according to the temperature change. In an embodiment of the present invention, since the object of gasification or combustion is fixed carbon, it is preferable to inject air or steam in the reactor 10 in accordance with the amount of the fixed carbon. Therefore, the thermogravimetric analyzer 30 measures the amount of fixed carbon from the supplied waste sample.

To this end, the thermogravimetric analyzer 30 of the embodiment heats the supplied sample in a nitrogen atmosphere for a first predetermined time to remove moisture and volatile matter, and then burns the fixed carbon in the air atmosphere for a second predetermined time period The amount of residual ash remaining can be measured and the amount of fixed carbon calculated based on the amount of evaporated moisture, volatiles and measured ash. However, other known methods of measuring the amount of fixed carbon in the waste sample can be used and the thermogravimetric analyzer 50 of the present invention is not limited to any particular measurement method.

The thermogravimetric analyzer 50 transmits the amount of the fixed carbon of the sample to the control unit 60 and the control unit 60 determines the amount of air and / or steam to be supplied to the reactor 10 based on the amount of the fixed carbon Thereby controlling the opening and closing of the valve 32 interposed in the supply pipe 17 for injecting air and / or steam.

According to the waste resource energy system of the above-described configuration, the amount of the air or steam to be supplied into the reactor 10 can be determined and injected by measuring a part of the waste by measuring the amount of the fixed carbon, The amount of air and / or steam required for the combustion reaction in the reactor 10 can be appropriately controlled even when various kinds of wastes such as livestock wastes are supplied to the reactor 10 at the same time.

FIG. 4 is a flow chart for explaining an exemplary energy conversion method using the waste resource energy system of FIG. 3; FIG.

In step S210, a part of the waste to be supplied to the reactor is supplied to the thermogravimetric analyzer as a sample. In one embodiment, this step S210 can be performed when the type of waste to be supplied to the reactor 10 is changed or every predetermined sampling period. For example, the control unit 60 may automatically control the valve 32 to supply the sample every predetermined sampling period, and the control unit 60 may control the valve 32 to supply the sample on the basis of the user input.

When the sample is injected into the thermogravimetric analyzer 50, the amount of the fixed carbon in the sample is measured in step S220. In one embodiment for measuring the amount of fixed carbon, the sample is heated in a nitrogen atmosphere for a first predetermined time to evaporate moisture and volatile matter, and the sample is heated for a second predetermined time in an air atmosphere to burn the fixed carbon, The ash can be measured and the fixed carbon weight can be calculated therefrom.

Thereafter, in step S230, based on the amount of the fixed carbon measured, the supply amount of at least one of air and steam to be supplied to the reactor can be controlled. In this case, the controlled object may vary depending on where the waste resource energy system of the present invention is applied. For example, when the waste resource energy system is applied to a power plant, the control unit 60 can control the amount of air injected into the reactor 10, and when the waste resource energy system is applied to the gasifier, The amount of steam can be controlled. Or alternatively, when air and steam are simultaneously supplied to the reactor 10, the controller 60 may be configured to control air and steam to be supplied to the reactor 10, respectively.

By measuring the amount of fixed carbon by sampling a part of the waste by the constitution of the waste resource energy system as described above, it is possible to accurately measure the proper amount of air and / or steam required for the combustion reaction of the reactor 10. According to the constitution of the present invention, even when supplying various kinds of wastes such as municipal wastes, industrial wastes, livestock wastes, etc., samples are sampled in real time in response to changes in the components of the supplied wastes, The amount of air and / or steam required can be adjusted appropriately so that optimum operating conditions can be created during the reaction.

5 is a block diagram for explaining a waste resource energy system according to an embodiment of the present invention.

The waste resource energization system shown in Fig. 5 represents an exemplary system in which the desulfurization control apparatus of Fig. 1 is coupled to the energization system of Fig. Referring to the drawings, a waste resource energization system according to an embodiment may include a reactor 10, an exhaust gas processor 20, an element analyzer 30, a thermogravimetric analyzer 50, and a controller 70 .

The reactor 10 is a device for burning various kinds of wastes, and the exhaust gas processing unit 20 removes harmful substances in the exhaust gas discharged from the reactor 10. The thermogravimetric analyzer 50 receives part of the waste supplied to the reactor 10 as a first sample and measures the amount of fixed carbon. The elemental analyzer 30 analyzes part of the waste supplied to the reactor 10 from the second The sulfur (S) content in the sample is measured as supplied as a sample.

The reactor 10, the exhaust gas treatment unit 20, the elemental analyzer 30 and the thermogravimetric analyzer 50 are identical to the reactor, the exhaust gas treatment unit, the elemental analyzer, and the thermogravimetric analyzer described with reference to FIGS. Or a similar function, and thus the detailed description thereof will be omitted.

The illustrated waste resource energization system includes a waste supply pipe 11 for supplying various wastes to the reactor 10 and a first sample supply pipe 11 branched from the supply pipe 11 to supply the first sample to the thermogravimetric analyzer 50. [ And a second sample supply pipe (13) for supplying the second sample to the element analyzer (30). Each of the sample supply pipes 13 and 15 is provided with open / close valves 21 and 22, and each of the valves 21 and 22 is controlled by the control unit 70 so as to control the supply amount of the sample. The waste resource energization system also includes a supply pipe 17 for supplying air and / or steam to the reactor 10 and a valve 32 interposed in the supply pipe 17. The desulfurizing agent is supplied to the exhaust gas treating unit 20 And a valve (31) interposed in the supply pipe (19). The valves 31 and 32 are controlled by the control unit 70 so as to control the supply amounts of the air and / or the steam and the desulfurizing agent, respectively.

In this configuration, the controller 70 supplies a part of the waste as the first sample to the thermogravimetric analyzer 50, and the thermogravimetric analyzer 50 measures the amount of the fixed carbon in the sample and transmits the measured value to the controller 70 ). The control unit 70 determines the supply amount of air and / or steam to be supplied to the reactor 10 based on the amount of the fixed carbon in the sample and controls the opening and closing of the valve 32 to control the air and / Or adjust the amount of steam.

When some of the waste is supplied to the element analyzer 30 under the control of the controller 70, the element analyzer 30 measures the sulfur content in the sample and transmits the measured value to the controller 70 do. The control unit 70 determines the supply amount of the desulfurizing agent to be supplied to the flue gas treating unit 20 based on the sulfur content of the sample and controls the opening and closing of the valve 31 to adjust the amount of the desulfurizing agent to be supplied to the flue gas treating unit 20.

On the other hand, in an alternative embodiment in which each of the waste supply pipe 11 and the sample supply pipes 13 and 15 is implemented as a conveying belt, the valves 21 and 22 may not be necessary. In this case, Can be configured to supply the first and second samples of the waste to the thermogravimetric analyzer (50) and the elemental analyzer (30), respectively, by controlling on / off of the conveyor belt rather than the valves (21,22).

Although it has been described in the illustrated embodiment that one controller 70 performs both the analysis results of the thermogravimetric analyzer 50 and the element analyzer 60 and the valve control according to the analysis results, in the alternative embodiment, the element analyzer 30 ) And the control of the amount of air and / or the supply of steam according to the analysis of the thermogravimetric analyzer 50 may be performed by the first and second control units, respectively.

FIG. 6 is a flow chart for explaining an exemplary energy conversion method using the waste resource energy system shown in FIG.

In step S310, a part of the waste to be supplied to the reactor 10 is supplied to the thermogravimetric analyzer 50 as a first sample. At this time, some of the waste may be supplied to the thermogravimetric analyzer as a sample when the type of waste to be supplied to the reactor is changed or at predetermined sampling periods.

Then, in step S320, a part of the waste to be supplied to the reactor 10 is supplied to the element analyzer 30 as a second sample. The supply period of the sample to be supplied to the element analyzer may be determined each time the type of waste is changed or according to a predetermined sampling period.

In this case, although it is shown in FIG. 6 that the step S310 of supplying the sample to the thermogravimetric analyzer and the step S320 of supplying the sample to the element analyzer are sequentially performed, the two steps S310 and S320 are performed according to the embodiment May be performed simultaneously or may be performed sequentially in a different order.

When the sample is supplied to the thermogravimetric analyzer 50, the thermogravimetric analyzer measures the amount of the fixed carbon in the sample (S330) and transfers the measured value to the controller 70. [ The control unit 70 adjusts the supply amount of at least one of air and / or steam to be supplied to the reactor 10 based on the amount of the fixed carbon measured (S340).

On the other hand, when the sample is supplied to the element analyzer 30, the element analyzer measures the sulfur content in the sample (S350) and transfers the measured value to the controller 70. [ The control unit 70 adjusts the supply amount of the desulfurizing agent to be supplied to the flue gas treating unit 20 based on the measured sulfur content (S360).

According to the construction of the waste resource energy system as described above, the amount of the air and / or steam required for the combustion reaction of the reactor 10 can be predicted by sampling a part of the waste and measuring the amount of the fixed carbon and the sulfur content, respectively, The desulfurizing agent to be supplied to the desulfurization unit 20 can be adjusted to an appropriate amount. Accordingly, when various kinds of wastes such as municipal wastes, industrial wastes, livestock wastes are supplied to the reactor, sampling and analysis of the samples in real time in response to changes in the composition of the supplied wastes, Or the amount of steam can be appropriately adjusted to make an optimum operation condition. Further, even when the harmful substances such as sulfur oxides are removed in the flue gas treating unit 20, it is possible to efficiently remove only an appropriate amount of the desulfurizing agent.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the scope of the appended claims, as well as the appended claims.

10: Reactor
20: Flue gas processor
30: Elementary Analyzer
40: 60, 70:
50: thermogravimetric analyzer

Claims (14)

A desulfurization control apparatus for a waste resource energy system,
A reactor (10) for combusting the waste;
An exhaust gas treatment unit 20 for removing harmful substances in the exhaust gas discharged from the reactor;
An element analyzer 30 for receiving a part of the waste supplied to the reactor as a sample; And
And a control unit (40) for controlling the supply amount of the desulfurizing agent to be supplied to the exhaust gas processing unit,
Wherein the element analyzer measures sulfur (S) content in the sample and transmits the measurement value to the control unit, and the control unit controls the supply amount of the desulfurizing agent based on the measured measurement value. A desulfurization control device of the oxidation system. The method according to claim 1,
Wherein a part of the waste is supplied to the elemental analyzer as a sample when the type of waste supplied to the reactor (10) is changed or is set at a predetermined sampling period. The method according to claim 1,
A first supply pipe (13) for supplying a part of the waste to the element analyzer (30) as a sample; And
And a first valve (21) interposed in the first supply pipe (13)
And the controller (40) controls the opening and closing of the first valve to supply the sample to the elemental analyzer. The method of claim 3,
A second supply pipe (19) for supplying the desulfurizing agent to the flue gas treating unit (20); And
And a second valve (31) interposed in the second supply pipe (19)
And the control unit (40) controls the opening and closing of the second valve based on the sulfur content. In a waste resource energy system,
A reactor (10) for combusting the waste;
An exhaust gas treatment unit 20 for removing harmful substances in the exhaust gas discharged from the reactor;
A thermogravimetric analyzer (50) for receiving a part of the waste supplied to the reactor as a first sample;
An element analyzer 30 for receiving a part of the waste supplied to the reactor as a second sample;
A first controller for controlling an amount of at least one of air and steam to be supplied to the reactor; And a second control unit for controlling the amount of the desulfurizing agent to be supplied to the flue gas treating unit,
Wherein the first control unit controls the supply amount of at least one of air and steam based on the amount of fixed carbon in the first sample measured by the thermogravimetric analyzer,
Wherein the second control unit controls the supply amount of the desulfurizing agent based on the sulfur (S) content in the second sample measured by the element analyzer. 6. The method of claim 5,
Wherein some of the wastes are supplied to the thermogravimetric analyzer as the first sample when the type of waste supplied to the reactor (10) is changed or at every predetermined sampling period. 6. The method of claim 5,
Wherein at least one of the wastes is supplied to the element analyzer as the second sample when the type of waste supplied to the reactor (10) is changed or at every predetermined sampling period. 6. The method of claim 5,
A supply pipe (13) for supplying the second sample to the element analyzer (30); And
And a valve (21) interposed in the supply pipe (13)
And the second control unit controls the opening and closing of the valve to supply the second sample to the element analyzer. 6. The method of claim 5,
A supply pipe 19 for supplying the desulfurizing agent to the flue gas treating unit 20; And
And a valve (31) interposed in the supply pipe (19)
And the second control unit controls the opening and closing of the valve based on the sulfur content. 6. The method of claim 5,
A supply pipe (17) for supplying at least one of the air and steam to the reactor (10); And
And a valve (32) interposed in the supply pipe,
And the first control unit controls opening and closing of the valve (32) based on the amount of the fixed carbon. 1. A desulfurization control method in a waste resource energy system comprising a reactor and an exhaust gas treatment unit for removing harmful substances in the exhaust gas discharged from the reactor,
Supplying a part of the waste to be supplied to the reactor to the element analyzer as a sample;
Measuring sulfur (S) content in the sample in the element analyzer; And
And controlling the supply amount of the desulfurizing agent to be supplied to the exhaust gas treating unit based on the measured sulfur content. 12. The method of claim 11,
Wherein the step of supplying the sample to the element analyzer is to supply a part of the waste as a sample to the element analyzer when the type of waste to be supplied to the reactor is changed or at every predetermined sampling period. (Method for controlling desulfurization of an energy system). 13. The method of claim 12,
Wherein the waste resource energy system further comprises a control unit,
Wherein the step of supplying the sample to the element analyzer comprises:
And controlling the opening and closing of the valve interposed in the supply pipe for supplying the sample to the element analyzer based on the predetermined sampling cycle or the user input. Way. 12. The method of claim 11,
Wherein the waste resource energy system further comprises a control unit,
Wherein the step of controlling the supply amount comprises:
Transmitting the measured sulfur content to the controller; And
And controlling the opening and closing of the valve interposed in the supply pipe for supplying the desulfurizing agent to the exhaust gas processing unit based on the measured value received by the control unit .

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