KR102086120B1 - Garbage incinerator wastewater recycling system - Google Patents

Abstract

The present invention relates to a non-discharge system for wastewater of a garbage incineration plant and an objective of the present invention is to provide a non-discharge system for wastewater of a garbage incineration plant recycling wastewater including ash, which is generated from facilities heating a waste heat boiler by incineration of garbage, as processing water without discharging the wastewater including ash to a river. According to the present invention, in the non-discharge system for wastewater of a garbage incineration plant which operates the waste heat boiler with the heat generated by incinerating garbage collected in a waste repository to generate steam, the wastewater including ash generated from the facilities is mixed with recycled water, the wastewater is filtered to remove various kinds of ions, impurities, heavy metals, and the like, and the filtered recycled water is stored in a processing water tank together with city water, thereby recycling the wastewater including ash as the processing water without being discharged to a river. According to the present invention, the system comprises the waste repository, a crane, an incinerator, the waste heat boiler, a steam header, a semi-dry reaction tower, a dust collector, a recycled water storage tank, and the like.

Description

Garbage incinerator wastewater discharge system {GARBAGE INCINERATOR WASTEWATER RECYCLING SYSTEM}

The present invention relates to a wastewater discharge-free system for waste incinerators, and more particularly, to a wastewater discharge-free system for waste incinerators for recycling wastewater discharged from a waste incinerator into process water without discharge.

In general, garbage discharged from Korea is largely classified into household waste, food waste, and industrial waste.

In this case, most of the municipal waste is incinerated in the incinerator, and only the amount exceeding the incinerator's processing capacity is transferred to the landfill and landfilled.

In addition, food waste is moved to a food waste treatment plant, and after dehydration and enzymatic treatment are performed, it is divided into compost, feed, or solid fuel and recycled.

In addition, industrial waste is treated separately and stored according to the Waste Management Act.

On the other hand, among the above-mentioned garbage, domestic waste is being incinerated in a waste incineration plant. In this case, most of the incinerators in Korea currently incinerate the waste using a stalker incinerator using a stalker incinerator.

In the case of incineration of waste, the stalker incinerator heats the boiler using waste heat generated and generates electricity by turning the turbine using the steam generated from the boiler, or supplies the steam generated from the boiler around the incinerator. Therefore, it is used as an energy source.

Looking at the composition of such a stocker incinerator, Patent Document 1, Korean Registered Utility Model Publication No. 20-0218031 (announced on March 15, 2001) discloses a multi-purpose garbage incinerator for movable grate type.

In Patent Document 1, the waste that is brought into the waste storage feet (reference numeral 103 of Patent Document 1) is incinerated in an incinerator (reference numeral 100 of Patent Document 1), and waste heat boiler (Patent Document 1) is used by using the heat generated in the incinerator. By heating the reference numeral 127) and supplying the heat generated from the waste heat boiler to a steam header (reference numeral 126 of Patent Document 1), the carcinogens such as dioxins are used in the combustion gas cooled and discharged from the waste heat boiler. In order to remove the semi-dry reaction tower (reference numeral 143 in patent document 1) and the filter dust collector 150, additionally, the filtration and dust collection is performed using an SCR catalyst column not shown in the drawing, and the filtered and collected gas is It is to be discharged through a chimney (reference numeral 154 in Patent Document 1).

Meanwhile, the water consumed or generated in the incinerator is largely divided into process water, domestic water, sewage, and sewage. First, the process water is consumed in various processes consumed by the incineration facility, and the living water is supplied to the living facilities of the incinerator and used. Wastewater includes living facility wastewater, laboratory wastewater, mechanical wastewater, cleaning facility wastewater, and cooling system wastewater, which are converted into wastewater after consumption of water. Sewage is sewage generated from ancillary facilities such as car washes. In this case, the sewage generated from ancillary facilities is discharged to a sewage treatment plant. On the other hand, the waste water discharged from the waste is supplied to an incinerator and burned and disposed of.

In this case, when looking at the process water, the process water is supplied to the water supply from the water supply source and stored in the process water storage tank of the incinerator, supplying a certain amount to the process tank expensive tank installed in the rooftop, and the process water in the process tank expensive tank It is intended to be used in the incinerator process.

Here, the waste heat boiler (Patent Document 1, reference numeral 127) supplies steam through a steam header (Patent Document 1, reference numeral 126), but the water supplied from the process water expensive tank is purified to prevent corrosion of the equipment. After the pure water treatment through, it is supplied to the waste heat boiler, and in this case, a large number of process water contained in the process water expensive tank is consumed.

Such process water is supplied and consumed for the steam generation use of the waste heat boiler, as well as cooling water for cooling the waste heat boiler and dilution water diluted with chemicals to remove contaminants, cleaning water for cleaning of equipment, and various pollution It is also used as a laboratory water for material experiments.

On the other hand, the process water and living water as described above are discharged to a wastewater treatment facility after use. In this case, cleaning water cleaning the process equipment, backwash water generated from a pure water treatment device, laboratory waste water generated in a laboratory, There are blowdown water generated in the boiler and wastewater from a heat production facility.

Such wastewater is inorganic wastewater, and it is treated by the chemical treatment method of the wastewater treatment facility, and the filtered circulating water excluding sludge is sent to a recirculating elevated tank for reuse.

On the other hand, in addition to the recycled water that is sent to the recirculation elevated tank for reuse as described above, the re-wastewater generated by cleaning of the incinerator is chemically treated and then treated as wastewater and discharged into rivers.

In this case, in recent years, the Ministry of Environment has implemented management of facilities that discharge pollutants, such as not accepting permission from facilities, if they exceed the standard values for heavy metals.

In particular, in the case of an incinerator adjacent to a water source protection zone, a wastewater capacity capable of being discharged for one day is set according to a standard content of allowable heavy metals discharged through the wastewater, for example, it is discharged for one day at an incinerator near the water source protection area. The quantity of wastewater that can be determined is often set to 1 ton.

However, since the wastewater discharged from the incinerator's wastewater treatment facility often exceeds 1 ton, there is a problem that the wastewater cannot be treated only by discharge.

Therefore, incinerators need a technical solution that can utilize the wastewater without discharging it.

In this case, since conventional incinerators are planned to be made from buildings to facilities, most of them are built without allocating free space for additional storage tanks or tanks.

In other words, if it is desired to reuse the sewage, it is difficult to expand a separate water tank or tank, and thus a technical solution for reusing the sewage is required only by changing the resources of the pre-designed equipment.

On the other hand, it is possible to consider a method of incineration by injecting the wastewater during combustion of the incinerator, but the method of injecting the wastewater into the incinerator lowers the thermal efficiency of the incinerator, so injecting the wastewater into the incinerator to incinerate it. There is also a need for a technical solution to reuse the wastewater without using.

Republic of Korea Registered Utility Model Publication No. 20-0218031 (announced on March 15, 2001)

Technical problem of the present invention for solving the above problems is to provide a waste incinerator wastewater discharge-free system to reuse the wastewater generated in the facility for heating the waste heat boiler by waste incineration into process water without discharging it into the river. .

In addition, another technical problem of the present invention is to reuse the wastewater generated in the facility for heating the waste heat boiler by incineration of waste, and process the wastewater using the resources of previously installed facilities without additional storage tanks or tanks. The present invention is to provide a wastewater-free system for waste water reuse in a waste incinerator.

In addition, another technical problem of the present invention is to provide a waste incinerator wastewater discharge-free system that can be reused as process water without incineration by spraying the wastewater generated in the facility for heating the waste heat boiler by incineration to the incinerator. .

In addition, another technical problem of the present invention is to reuse the recycled water containing the waste water generated in the facility for heating the waste heat boiler by waste incineration as process water, mixing the recycled water and time constant in the pre-installed process water reservoir. Therefore, it is to provide a wastewater discharge-free system for waste water incinerator so that it can be used as process water, but process water is generated so as to occupy a greater proportion of the time constant than recycled water.

In addition, another technical problem of the present invention is to reuse the recycled water containing the waste water generated in the facility for heating the waste heat boiler by waste incineration as process water, mixing the recycled water and time constant in the pre-installed process water reservoir. Therefore, in the use as process water, it is to provide a wastewater discharge-free system for waste water incineration plant in which a level meter measuring a water level is prevented from malfunctioning when the water level fluctuates by simultaneous supply of recycled water and time water.

In addition, another technical problem of the present invention is to reuse the recycled water containing the waste water generated in the facility for heating the waste heat boiler by waste incineration as process water, mixing the recycled water and time constant in the pre-installed process water reservoir. Therefore, in using it as process water, it is to provide a wastewater discharge-free system for waste water incinerator to immediately know whether a level meter has failed or not, which measures the level of water level for recycled water and time constant water.

Waste incineration plant wastewater discharge system of the present invention for achieving the above technical problem is a waste storage tank for collecting the collected garbage by entering the garbage collection vehicle; A crane device for lifting the garbage collected in the waste storage tank; An incinerator that receives the waste lifted from the crane device as an input port and incinerates the input waste; A waste heat boiler connected to the incinerator and heated by receiving heat generated from the incinerator, and provided with a heating water receiving port on an upper portion to discharge steam from the heating water receiving port; A steam header connected to a heating water intake of the waste heat boiler to receive heated steam and distribute heated steam; A semi-dry reaction that is combined to communicate with the outlet from which the combustion gas of the waste heat boiler is discharged, and sprays the dilution of slaked lime with the combustion gas discharged from the waste heat boiler to absorb the acid gas contained in the combustion gas, but only evaporates moisture. tower; A filter dust collector for collecting and collecting the reaction products produced in the semi-dry reaction tower; A recirculating water storage tank for storing and recycling the recycled water mixed with the recycled waste water by receiving and storing re-waste water generated in the vicinity of the incinerator, inorganic waste water including cleaning water, backwash water, and laboratory waste water; A recirculating water supply pump connected to the recirculating water storage tank and pumping and supplying recirculating water supplied to the recirculating water storage tank; A recirculating water chemical mixing tank which receives the recirculating water in conjunction with the recirculating water supply pump and mixes and mixes the flocculant with the recirculating water; A recirculating water sedimentation tank which is connected to the recirculating water chemical mixing tank and precipitates recirculating water in which a flocculant is mixed in the recirculating water chemical mixing tank; A recirculating water buffer tank connected to the recirculating water sedimentation tank and storing and buffering the filtered recirculating water excluding precipitates precipitated in the recirculating water sedimentation tank; A recirculating water filter which is connected to the recirculating water buffer tank and allows recirculating water stored in the recirculating water buffer tank to be filtered through a filter medium; A recycled water activated carbon filter which is connected to the recycled water filter, and adsorbs organic matter by passing the filtered recycled water through the recycled water filter through activated carbon; A recycle water discharge tank connected to the recycle water activated carbon filter, and storing filtered water recycled through the recycle water activated carbon filter; A recirculating water pumping pump connected to the recirculating water discharge tank and pumping and supplying recirculating water stored in the recirculating water discharge tank; A process water reservoir connected to the recirculating water pumping pump and receiving and storing recirculating water discharged from the recirculating water pumping pump; A time constant water supply pump connected to the process water storage tank and supplying time constant water to the process water storage tank; A process water pump that is connected to the process water reservoir and pumps and supplies the time constant and recirculated water stored in the process water reservoir; And, connected to the process water pumping pump is stored in the recycled water and time constants supplied by the process water pumping pump, disposed on the roof of a higher position than the incinerator, the process water supplied to the heated water inlet of the waste heat boiler An elevated tank for process water utilized as a process water of process equipment installed around the incinerator; It includes.

In addition, the waste incinerator wastewater discharge system is installed in the process water reservoir, measuring the level of the recirculating water stored in the process water reservoir to generate a first level signal when the level of the recirculating water is detected. Meter; It is installed in the process water reservoir, but is installed at a certain distance to the lower part of the upper level meter of the time constant, and measures the water level of the recirculating water stored in the process water reservoir, and when the level of the recirculating water is detected, a second level signal is generated. An upper level meter for generating recycle water; It is installed in the process water reservoir, but is installed at a certain distance to the lower part of the upper level meter of the recycle water, and measures the water level of the recycled water stored in the process water reservoir to detect the water level of the time constant and the recycle water. A lower level meter for recirculating water generating a three-level signal; It is installed in the process water reservoir, but is installed at a certain distance to the lower part of the lower level meter of the recycle water, and the level of the time constant and the recycle water is detected by measuring the water level of the time constant and the recycle water stored in the process water storage tank. A time constant lower level meter generating a fourth level signal; A time constant opening / closing valve installed between the time constant supply pump and the process water storage tank; A recirculating water opening / closing valve installed between the recirculating water pumping pump and the process water reservoir; And, the upper level meter of the time constant, the upper level meter of the recirculating water, the lower level meter of the recirculating water, the lower level meter of the time constant, the time constant opening and closing valve, and the recirculating water switching valve, and is electrically connected to the upper level meter of the time constant. When the first level signal is generated, the full water mode is performed, and during the full water mode, the time constant open / close valve and the recirculating water open / close valve are turned off until the fourth level signal is generated at the lower level meter of the time constant. Blocks the time constant and recirculating water flowing into the process water storage tank, and when the fourth level signal is inputted and stopped at the lower level meter of the time constant during the full water mode, the water mode is performed, and the constant time constant opening / closing valve in the water mode Turn on so that the time constant flows into the process water reservoir, and when the third level signal is generated at the lower level meter of the recycle water while the water mode is in progress, proceeds to the recycle water supply mode, and supplies the recycle water In the mode, the recirculating water opening / closing valve is turned on to allow the recirculating water to flow into the process water reservoir, and when the second level signal is generated at the upper level meter of the recirculating water during the recirculating water supply mode, the recirculating water is blocked. Mode, and turn off the recirculating water on / off valve in the recirculating water blocking mode to block the recirculating water from entering the process water reservoir, and during the recirculating water blocking mode, at the upper level meter of the time constant When the first level signal is generated, the control unit proceeds to the full water mode; It may be configured to further include.

In addition, the waste incinerator wastewater discharge-free system is formed in a rod shape, and both ends are coupled to both sides of the inner side of the process water reservoir to reinforce the reservoir so that it does not spread in the horizontal direction of the process water reservoir; The upper part and the lower part are formed in an open rectangular cylindrical shape, and further form a bent part that is bent in a state in which a portion of the upper part protrudes upward, a plurality of level meter coupling holes are formed in the bent part, and the level meter is coupled. A sludge prevention body in which the upper level meter of the time constant, the upper level meter of the recirculating water, the lower level meter of the recirculating water, and the lower level meter of the time constant are inserted and coupled to each hole; And, it is composed of a plurality, formed in a clasp shape and coupled with the sludge prevention body, the hook portion hanging over the reservoir tank; It may be configured to further include.

In addition, the waste incineration system of the waste incineration plant interlocks with the control unit, and a failure signal for the upper level meter of the time constant, the upper level meter of the recirculating water, the lower level meter of the recirculating water, and the lower level meter of the recirculating water is transmitted from the control unit. In case, the manager communication terminal to notify the manager by outputting the alarm information; And, if the control unit does not switch to the full water mode for a predetermined period of time from the time when the recirculation water blocking mode is executed, the upper level meter of the time constant is determined to be a failure, and the manager communicates with the control unit to the communication terminal. Generating a first level meter failure signal relating to a failure of the time constant upper level meter; It may be configured to further include.

In addition, when the wastewater discharge-free system of the waste incinerator does not change to the water storage mode for a predetermined time from the time when the third level signal is input when the water level is gradually lowered by the control unit proceeding to the full water mode, the Determining that a failure has occurred in the lower level meter of the time constant and transmitting a fourth level meter failure signal to the manager communication terminal; It may be configured to further include.

In addition, in the waste incineration system of the waste incinerator, when the water level is gradually lowered by the controller proceeding to the full water mode, the second level from the recirculating water upper level meter for a predetermined time from the time when the full water mode is executed. When no signal is generated, the upper level meter of the recirculating water is broken when the upper level meter of the recirculating water is judged as a failure or the third level signal is input from the lower level meter of the recirculating water without inputting the second level signal. Determining that the second level meter failure signal is transmitted to the manager communication terminal; It may be configured to further include.

In addition, in the waste water discharge system of the waste incinerator, when the water level is gradually lowered by the control unit proceeding to the full water mode, a third level signal from the recirculating water lower level meter for a predetermined time from the time when the full water mode is executed. When the low level meter of the recirculating water is judged to be a failure when no is generated or when the fourth level signal is input from the low level meter of the time constant without inputting the third level signal, the low level meter of the recirculating water is judged as a failure. Transmitting a third level meter failure signal to the manager communication terminal; It may be configured to further include.

The present invention does not discharge the wastewater generated in the facility for heating the waste heat boiler by waste incineration into the river, and is filtered so that substances such as organic particles, ionic particles, nonionic particles, and heavy metals are removed together with inorganic wastewater and time constant water. After that, it is converted into process water together with the time constant water and recycled, thereby preventing contamination of the sewage by river discharge.

In addition, according to the present invention, when re-waste water generated in a facility for heating waste heat boilers by waste incineration is reused, re-waste water can be reused by using a pre-installed facility, a process water reservoir, without adding a separate reservoir or tank. Therefore, it is possible to reuse the wastewater by minimizing the cost of improving the equipment without performing a separate extension construction.

In addition, since the present invention recycles the wastewater generated in the facility for heating the waste heat boiler by incineration of waste into process water together with inorganic wastewater and time constant water, it is not necessary to inject the wastewater into the incinerator and incinerate it. It is effective to prevent the thermal efficiency of the incinerator from falling.

In addition, the present invention is to reuse the recycled water containing the waste water generated in the facility for heating the waste heat boiler by waste incineration as process water, mixing the recirculated water and the time constant in the pre-installed process water reservoir to use as process water There is an effect of minimizing the effect of the recycled water on the process equipment by automatically adjusting the mixing ratio of the timed water and the recycled water to make it possible, but occupying a larger proportion of the timed water than the recycled water.

In addition, the present invention is to reuse the recycled water containing wastewater generated in the facility for heating the waste heat boiler by waste incineration as process water, mixing the recirculated water and the time constant in the pre-installed process water reservoir to use as process water In, the level meter measuring the water level is prevented from being malfunctioned by the simultaneous supply of recirculating water and time constant, so that the life of the on-off valve and the supply pump is shortened.

In addition, the present invention is to reuse the recycled water containing wastewater generated in the facility for heating the waste heat boiler by waste incineration as process water, mixing the recirculated water and the time constant in the pre-installed process water reservoir to use as process water In, it is possible to immediately know whether or not the level meter which measures the level of water level for recirculating water and time constant immediately prevents shortening of the life of the supply pump, prevents the overflow tank from overflowing, and processes water It has the effect of preventing unsupplied with water and preventing unsupply of recycled water.

1 is a block diagram of a waste water discharge-free system in a waste incinerator according to an embodiment of the present invention.
FIG. 2 is a configuration view of the process water storage tank shown in FIG. 1 in an enlarged detail.
FIG. 3 is a table showing driving states of inputs and outputs while the control unit shown in FIG. 2 progresses each mode.
4 is a partial cross-sectional view of a process water reservoir showing a state in which a sludge prevention body is attached to a reservoir tank installed in the process water reservoir shown in FIG. 2.
Figure 5 is a side view of the sloshing prevention body shown in Figure 4 by cutting.

Hereinafter, exemplary embodiments for carrying out the present invention will be described with reference to the accompanying drawings. In this case, when it is said that a certain part "includes" a certain component in the entire specification, it is not specifically stated otherwise. It is considered to mean that other components may be further included rather than controlling other components. In addition, terms such as "... part" described in the specification mean a unit that processes at least one function or operation when describing electronic hardware or electronic software, and one component, function, when describing mechanical devices, It is regarded as meaning a use, a point or a driving element. In addition, hereinafter, the same or similar components will be described using the same reference numerals, and redundant description of the same components will be omitted.

First, hereinafter, each component constituting the wastewater discharge-free system of the waste incinerator according to an embodiment of the present invention will be described in detail.

1 is a block diagram of a waste water discharge-free system in a waste incinerator according to an embodiment of the present invention. FIG. 2 is a configuration view of the process water storage tank shown in FIG. 1 in an enlarged detail. FIG. 3 is a table showing driving states of inputs and outputs while the control unit illustrated in FIG. 2 progresses each mode. FIG. 4 is a partial cross-sectional view of a process water reservoir showing a state in which a sludge prevention body is attached to a reservoir tank installed in the process water reservoir shown in FIG. 2. FIG. 5 is a side view of the anti-slung body shown in FIG. 4 cut away.

As shown in Figures 1 to 5, the waste incinerator wastewater discharge system according to an embodiment of the present invention is a waste storage tank (1), crane device (2), incinerator (3), waste heat boiler (4), steam header (5), semi-dry reaction tower (6), filter dust collector (7), recirculating water storage tank (8), recirculating water supply pump (9), recirculating water chemical mixing tank (10), recirculating water sedimentation tank (11), recirculation Water buffer tank (12), recycled water filter (13), recycled water activated carbon filter (14), recycled water discharge tank (15), recycled water pump (16), process water storage tank (17), time water supply pump ( 18), a process water pumping pump 19 and a process water expensive tank 20. In addition, the waste incineration system for waste water incineration according to an embodiment of the present invention includes an upper level meter 21 of the constant water, an upper level meter of the recycled water 22, a lower level meter of the recycled water 23, a lower level meter of the constant water 24, The time constant opening and closing valve 25, the recirculating water opening and closing valve 26, the control unit 27, and the manager communication terminal 28 may be further included.

The waste storage tank 1 collects the garbage collected by entering the garbage collection vehicle. Such a waste storage tank may allow waste to be accumulated in one place when a vehicle entering the incinerator inputs waste.

The crane device 2 is installed on the upper part of the waste storage tank and connected to the overhead crane 2a moving in a plane, the crane wire 2b descending in a row form from the overhead crane 2a, and the crane wire 2b It comprises a knuckle crane (2c) to pick up the garbage. Such a crane device 2 picks up the waste accumulated in the waste storage tank 1 with a knuckle crane 2c, winds up the wire, and then moves the overhead crane 2a to move to the incinerator 3 to be described later. Trash is put in.

The incinerator 3 is a stalker-type incinerator 3 using a grate, which receives waste lifted from the crane device 2 through an inlet and incinerates the waste, thereby discharging waste heat boilers, which will be described later as combustion gas by incineration of waste ( 4) It is heated. Meanwhile, the incinerator 3 may further include a facility (not shown) for collecting ash at a lower end of the incinerator 3 so that ash generated during incineration of waste can be collected.

The waste heat boiler 4 is connected to the incinerator 3 and heated by receiving heat generated from the incinerator 3, and is provided with a heating water inlet in a portion of the upper portion to discharge steam from the inlet.

The steam header 5 is connected to a heated water inlet of the waste heat boiler 4 to receive heated steam to distribute heated steam. Here, the steam header 5 supplies the distributed steam to the turbine to rotate the turbine to perform power generation using waste heat, supply some steam to a company near the incinerator, or supply steam to nearby facilities such as a swimming pool. It can be supplied and utilized.

The semi-dry reaction tower 6 is coupled to communicate with the outlet from which the combustion gas of the waste heat boiler 4 is discharged, and absorbs the acid gas contained in the combustion gas by spraying the slaked lime dilution liquid to the combustion gas discharged from the waste heat boiler 4 Acid gas can be removed by making it possible, but only water is evaporated.

The filtration dust collector (7) collects and collects the reaction products produced in the semi-dry reaction tower (6). In addition, an SCR catalyst catalytic tower, which is an optional catalytic denitrification facility, is connected to the filter dust collector 7 to treat dioxins or nitrogen compounds contained in the combustion gas discharged from the filter dust collector 7 to reduce pollutants through the chimney. Ensure that only gas is released.

The recirculating water storage tank 8 stores re-wastewater generated around the incinerator 3. In addition, the recirculation water storage tank 8 stores recirculated water in which re-waste is mixed by receiving and storing inorganic wastewater including blowdown water, cleaning water, backwash water, and laboratory wastewater discharged around the incinerator 3. The recirculating water storage tank 8 accumulates so that it can be mixed with the waste water and inorganic waste water to be used as recycle water.

The recirculating water supply pump 9 is connected to the recirculating water storage tank 8 and pumps the recirculating water supplied to the recirculating water storage tank 8 to supply water to the recirculating water chemical mixing tank 10 described later.

The recirculating water chemical mixing tank 10 receives recirculating water in conjunction with the recirculating water supply pump 9, and mixes and mixes non-ionic flocculant with the recirculating water. Here, a stirrer is installed in the re-waste water recycled chemical mixing tank 10 to improve the mixing property of the non-ionic flocculant.

The recirculating water sedimentation tank 11 is connected to the recirculating water chemical mixing tank 10 and precipitates recirculating water in which the coagulant is mixed in the recirculating water chemical mixing tank 10. In this case, the precipitate precipitated by the recycle water sedimentation tank 11 discharges only the sludge through a sludge pump. Therefore, the recirculating water sedimentation tank 11 is primarily to precipitate and discharge non-ionic suspended particles, which are relatively large particles, so that non-ionic suspended particles can be filtered.

The recirculating water buffer tank 12 is connected to the recirculating water sedimentation tank 11 and stores and buffers the filtered recirculating water except for the precipitate precipitated in the recirculating water sedimentation tank 11. Such a recirculation buffer tank is a storage facility, so that the sediment precipitated in the recirculating water sedimentation tank 11 is settled so that the sediment does not float by rapid water supply.

The recirculating water filter 13 is connected to the recirculating water buffer tank 12 and allows recirculating water stored in the recirculating water buffer tank 12 to be filtered through the filter medium. This filter can improve the turbidity of recycled water by adsorbing suspended solids.

The recycled water activated carbon filter 14 is connected to the recycled water filter 13, and the filtered water filtered through the recycled water filter 13 is passed through the activated carbon to adsorb organic matter. Therefore, the recycled water is introduced into the recycled water storage tank 8 to be described later in a state in which organic substances are filtered by the recycled activated carbon filter 14.

The recycle water discharge tank 15 is connected to the recycled water activated carbon filter 14 and stores filtered recycled water through the recycled water activated carbon filter 14. The recirculating water discharge tank 15 stores recirculated water in which organic materials and heavy metals have been filtered, and stores the filtered recirculated water for re-use as necessary for process use or cleaning use.

The recirculating water pumping pump 16 is connected to the recirculating water discharge tank 15 and pumps the recirculating water stored in the recirculating water discharge tank 15 to supply it to the process water reservoir 17 described later.

The process water reservoir 17 is connected to the recirculating water pumping pump 16 and receives and stores recirculating water discharged from the recirculating water pumping pump 16. On the other hand, in the process water storage tank 17, the time constant water is supplied by the process water pumping pump 19, which will be described later, so that the time constant water includes recycle water, so that the time constant water and the recycle water can be used as the process water. Here, the process water reservoir 17 is installed around the incinerator 3, it can be installed and used in underground facilities. In this way, the reason why the process water storage tank 17 is installed in the underground facility is to be disposed at a position as close as possible to the position of the recirculation water discharge tank 15 described above, so that the length of the pipe is formed to be as short as possible, thereby providing the entire facility. It is formed to reduce the manufacturing cost and facilitate maintenance. On the other hand, a pure water treatment facility (not shown) is connected to the process water reservoir 17 so that the process water is purified and stored in a pure storage tank (not shown), and the pure water stored in the pure storage tank is supplied to the pure water utilization facility. can do. In this case, the process water storage tank 17 may be connected to the process water expensive tank 20 or may store and use process water through a separate process water auxiliary air tank (not shown).

The time constant water supply pump 18 is connected to the process water storage tank 17 and supplies the time constant water to the process water storage tank 17.

The process water pumping pump 19 is connected to the process water storage tank 17 and pumps the time constant and recirculating water stored in the process water storage tank 17 to supply it to the process water expensive tank 20 to be described later.

The process water elevated tank 20 is connected to the process water pumping pump 19 to store recirculated water and time constant water supplied by the process water pumping pump 19, and is disposed on the roof of a location higher than the incinerator 3, and waste heat It is used as the process water supplied to the heating water intake of the boiler 4 and is used as the process water of the process equipment installed around the incinerator 3. The process water expensive tank 20 stores the recirculating water and the time constant water stored in the process water reservoir 17 by the process water pumping pump 19 at a high location on the roof, thereby acting as a supplementary tank, so that the process water in the facility If supplied, the process water can be supplied without interruption.

The time constant upper level meter 21 is installed in the process water reservoir 17 and measures the water level of the recirculating water stored in the process water reservoir 17 to generate a first level signal when the level of the recirculating water is detected. . Here, the time constant upper level meter 21 is composed of a point type magnetic water level sensor, so that the first level signal is generated only when the water level comes to a specific position.

More specifically, when the time constant upper level meter 21 is composed of a point type magnetic water level sensor, the time constant upper level meter 21 includes a first magnetic part 21a, a first magnetic cylinder 21b, and a first It includes a guide bar 21c, a first lead sensor 21d, a first lead wire 21e, a first upper stopper 21f, and a first lower stopper 21g.

The first magnetic portion 21a is formed in a cylindrical shape or a rod shape and is composed of a magnetic body. The first magnetic portion 21a is fixed to the inside of the first magnetic cylinder 21b, which will be described later, but is arranged to be positioned on both sides of the first lead sensor 21d, which will be described later, the first lead sensor 21d ) Is magnetized to conduct the internal contact.

The first magnetic cylinder 21b is formed in a circular cylindrical shape surrounding the first magnetic portion 21a, but a first through hole is formed in the center. The first magnetic cylinder 21b surrounds the first magnetic portion 21a to provide a space in which the first magnetic portion 21a can be fixed, and the first guide rod 21c described later through the first through hole ) Is inserted.

The first guide rod 21c is formed in a cylindrical rod shape with one end closed, and is inserted to pass through the first through hole. In addition, a first lead sensor 21d, which will be described later, is inserted through the other end of the first guide bar 21c.

The first lead sensor 21d is inserted inside the first guide rod 21c through the other end of the first guide rod 21c, and when located between the first magnetic portions 21a, the first level signal is generated. Can occur. Here, when the first lead sensor 21d is located in the center of the first through hole of the first magnetic cylinder 21b and is magnetized from the first magnetic portion 21a, the internal contact is applied to the first lead wire 21e. The first level signal is transmitted through.

The first lead wire 21e is inserted into the first guide rod 21c through the other end of the first guide rod 21c, and is electrically connected between the lead sensor and the control unit 27. The first lead wire 21e transmits the first level signal generated by the reed sensor through the control unit 27.

The first upper stopper 21f is formed to have a larger diameter than the outer diameter of the first through hole and is coupled to the outer periphery of the first guide rod 21c, and when the first magnetic cylinder 21b is moved by buoyancy, the first magnetic The cylinder 21b is restrained from moving above a certain height.

The first lower stopper (21g) is formed with a diameter larger than the outer diameter of the first through hole and is coupled to the outer periphery of the first guide rod (21c), and the first magnetic when the first magnetic cylinder (21b) is moved by gravity. Make sure that the cylinder 21b does not move below a certain height.

The upper level meter 22 of the recirculating water is installed in the process water reservoir 17 but is spaced a certain distance below the upper level meter 21 of the constant water, and measures the level of the recirculating water stored in the process water reservoir 17. Thus, when the level of the recycle water is detected, a second level signal is generated. Here, the recirculating water upper level meter 22 is composed of a point type magnetic water level sensor, so that the second level signal can be generated only when the water level comes to a specific position.

More specifically, when the recirculating water upper level meter 22 is configured as a point type magnetic water level sensor, the recirculating water upper level meter 22 includes a second magnetic part 22a, a second magnetic cylinder 22b, and a second It includes a two-guide rod 22c, a second lead sensor 22d, a second lead wire 22e, a second upper stopper 22f, and a second lower stopper 22g.

Here, the second magnetic portion 22a, the second magnetic cylinder 22b, the second guide rod 22c, the second lead sensor 22d, the second lead wire 22e, the second upper stopper 22f, and , The second lower stopper (22g) is the first magnetic portion (21a), the first magnetic cylinder (21b), the first guide bar (21c), the first lead sensor (21d), the first lead wire (21e) , First upper stopper (21f), and is formed of the same structure as the first lower stopper (21g), the difference is, as shown in the drawing, the first guide rod described above the length of the second guide rod (22c) The difference is that the detection position of the second lead sensor 22d is formed differently and the second lead sensor 22d generates a second level signal by forming a length different from the length of (21c).

The recirculating water lower level meter 23 is installed in the process water reservoir 17, but is installed at a certain distance to the lower part of the recirculating water upper level meter 22, and measures the water level of the recirculating water stored in the process water reservoir 17. When the level of the time constant and the recycle water is detected by measuring, a third level signal is generated. Here, the recirculating water lower level meter 23 is composed of a point-type water level sensor, so that the third level signal can be generated only when the water level comes to a specific position.

More specifically, when the recirculating water lower level meter 23 is configured as a point type magnetic water level sensor, the recirculating water lower level meter 23 includes a third magnetic part 23a, a third magnetic cylinder 23b, and It includes a three-guide rod 23c, a third lead sensor 23d, a third lead wire 23e, a third upper stopper 23f, and a third lower stopper 23g.

Here, the third magnetic portion 23a, the third magnetic cylinder 23b, the third guide bar 23c, the third lead sensor 23d, the third lead wire 23e, the third upper stopper 23f, and , The third lower stopper 23g includes the above-described second magnetic portion 22a, second magnetic cylinder 22b, second guide rod 22c, second lead sensor 22d, second lead wire 22e , The second upper stopper 22f and the second lower stopper 22g are formed in the same structure, and the difference is that the second guide rod 23c is the length of the third guide rod 23c as shown in the drawing. The difference is that the detection position of the third lead sensor 23d is differently formed by forming a length different from the length of 22c), and the third lead sensor 23d generates a third level signal.

The lower level meter 24 of the time constant water is installed in the process water reservoir 17, but is installed at a certain distance to the lower part of the lower level meter 23 of the recycle water, and the level of the time constant and the recycle water stored in the process water storage tank 17 When the level of the time constant and the recirculating water is detected by measuring, a fourth level signal is generated. Here, the time constant lower level meter 24 is composed of a point type magnetic water level sensor, so that the fourth level signal can be generated only when the water level comes to a specific position.

More specifically, when the time constant lower level meter 24 is configured as a point type magnetic water level sensor, the time constant lower level meter 24 includes a fourth magnetic part 24a, a fourth magnetic cylinder 24b, and a fourth guide. It includes a rod 24c, a fourth lead sensor 24d, a fourth lead wire 24e, a fourth upper stopper 24f, and a fourth lower stopper 24g.

Here, the fourth magnetic portion 24a, the fourth magnetic cylinder 24b, the fourth guide bar 24c, the fourth lead sensor 24d, the fourth lead wire 24e, the fourth upper stopper 24f, and , The fourth lower stopper 24g includes the above-described third magnetic part 23a, third magnetic cylinder 23b, third guide bar 23c, third lead sensor 23d, and third lead wire 23e. , The third upper stopper 23f and the third lower stopper 23g are formed in the same structure, and as a difference, the length of the fourth guide bar 24c is the third guide bar ( The difference is that the detection position of the fourth lead sensor 24d is differently formed by forming a length different from that of 23c), and the fourth level signal is generated by the fourth lead sensor 24d.

The time constant opening / closing valve 25 is installed between the time constant supply pump 18 and the process water reservoir 17. The time constant opening and closing valve 25 is configured as a pneumatically operated ball valve (not shown). In this case, the pneumatically actuated ball valve is provided with a through-hole through the through-hole supply pump 18 and the process water reservoir (17) in a state in which a ball (not shown) with a through hole is disposed in the inner flow path of the valve body (not shown) ), When the air pressure is input, the ball rotates and the outer periphery where the through hole of the ball is not formed closes the internal flow path of the valve body to close the time constant water supply pump 18 and the process water reservoir 17 By blocking the connection, the opening and closing operation is performed. Here, the time constant opening / closing valve 25 composed of a pneumatically actuated ball valve may be further configured with a pneumatic solenoid valve (not shown) on the outer periphery of the ball valve body. In this case, the pneumatic solenoid valve is air to the port of the external body. The air pressure input from the compressor is input, and the internal electronic valve is electrically connected to a controller to be described later, and the electronic valve is controlled according to a control signal from the controller 27 to control the opening and closing of the ball.

The recirculating water opening / closing valve 26 is installed between the recirculating water pumping pump 16 and the process water reservoir 17. The recirculating water opening / closing valve 26 may be configured as a pneumatically operated ball valve (not shown). In this case, the recirculating water opening / closing valve 26 is provided with a time constant supply pump 18 and a process water reservoir through a through hole, with a ball (not shown) having a through hole disposed in the internal flow path of the valve body (not shown). (17) During communication, when the pneumatic pressure is applied, the ball rotates and the outer periphery where the through hole of the ball is not formed closes the internal flow path of the valve body (not shown) to process the time constant supply pump 18 By closing the connection between the water storage tank 17, the opening and closing operation is performed. Here, the recirculating water opening and closing valve 26 composed of a pneumatically actuated ball valve may be further configured with a pneumatic solenoid valve on the outer periphery of the ball valve body, in which case the pneumatic solenoid valve is input from the air compressor as a port of the external body. It receives the pneumatic pressure, and the internal electronic valve is electrically connected to a controller, which will be described later, and the electronic valve is controlled according to the control signal of the control unit 27 to control the opening and closing of the ball.

The control unit 27 may be configured as an injection control system (DCS), which is a controller that controls the facilities of the incinerator. The control unit 27 includes an upper level meter 21 of the time constant, an upper level meter 22 of the recirculating water, a lower level meter 23 of the recirculating water, a lower level meter 24 of the time constant, a time constant opening and closing valve 25, and a recirculation. It is electrically connected to the male on-off valve (26). The control unit 27 is a time constant in accordance with the level signals generated from the upper level meter 21 of the time constant, the upper level meter of the recycled water 22, the lower level meter of the recycled water 23, and the lower level meter of the time constant 24 The opening and closing valve 25 and the recirculating water opening and closing valve 26 are controlled. The control unit 27 controls the time constant opening and closing valve 25 and the recirculating water opening and closing valve 26. It will be described in more detail in the description of the drive.

The manager communication terminal 28 is interlocked with the control unit 27, and in the control unit 27, the time constant upper level meter 21, the recirculating water upper level meter 22, the recirculating water lower level meter 23, and the time constant lower level meter (24), when the failure signal for the time constant opening and closing valve 25 and the recirculating water opening and closing valve 26 is transmitted, the alarm information for the failure signal is notified to the administrator, the time constant upper level meter 21, the recycle water The upper level meter 22, the recirculating water lower level meter 23, the time constant lower level meter 24, the time constant opening / closing valve 25 and the recirculating water opening / closing valve 26 allow the administrator to know the failure information. In addition, the manager communication terminal 28 outputs monitoring information on the operation of various facilities in the incinerator by interlocking with the process control equipment of various facilities in the incinerator, as well as the control unit 27, so that the manager knows the driving status of the process facilities. It plays a role of displaying various information.

Hereinafter, a description will be given of the operation of the waste water discharge system without waste incinerator in accordance with an embodiment of the present invention.

First, in the waste incineration plant of the waste incinerator, the crane device 2 lifts the waste accumulated in the waste storage tank 1 and puts it into the incinerator 3 to burn the waste, thereby heating the waste heat boiler 4, and the waste heat boiler. In (4), the turbine is generated by turning the turbine into steam heated through the steam header 5, or the steam is delivered to nearby companies around the incinerator. In this case, the waste heat boiler 4 is supplied with purified process water through a pure water treatment facility connected to the process water expensive tank 20 and converted into steam, thereby generating power in a state in which corrosion of the waste heat boiler 4 is prevented and Steam is supplied. At this time, the gas burned in the waste heat boiler 4 is discharged through the chimney in a state in which harmful substances such as dioxins are removed below a certain level through the semi-dry reaction tower 6, the filter dust collector 7, and the catalyst tower.

On the other hand, in the incinerator 3, the waste storage tank 1, the incinerator 3 and the waste heat boiler 4 are discharged from the facilities of the waste storage tank 1, the incinerator 3, and the waste heat boiler ( The wastewater generated during the cleaning of 4) is stored in the recycle water storage tank (8).

In this case, the recycled water storage tank 8 includes not only re-waste water, but also blowdown water used in the incinerator 3, cleaning water of facilities equipped with the incinerator 3, and backwash water generated in the pure water treatment facility and the laboratory. Inorganic waste water including laboratory waste water generated in the will be stored.

The wastewater and inorganic wastewater stored in the recirculating water storage tank 8 are supplied to the recirculating water chemical mixing tank 10 and the recirculating water sedimentation tank 11 using non-ionic flocculants through the recirculating water supply pump 9. In the state in which the ion slurry is precipitated, it is supplied to and stored in the recirculating water sedimentation tank 11, but is stored in a state where the flow rate is stored by the recirculating water buffer tank 12.

Next, the wastewater and inorganic wastewater stored in the recirculating water buffer tank 12 are filtered through the filter medium of the recirculating water filter 13 and then filtered while the organic matter is adsorbed through the activated carbon filter 14 of the recirculating water. , It is stored in the recirculation water discharge tank (15).

Next, the recycled water including the wastewater and inorganic wastewater stored in the recycled water discharge tank 15 is stored in the process water storage tank 17 through the recycle water pumping pump 16, in this case, the process water storage tank 17 The time constant flowed into the time constant water supply pump 18 is supplied to form a process water in which ash water, inorganic waste water and time constant are mixed.

The process water stored in the process water storage tank 17 is supplied to the process water elevated tank 20 by a process water pumping pump 19, and the process water stored in the process water elevated tank 20 is a pure water treatment facility, semi-dry type It is used as water for the reaction tower and process water required for facilities around the incinerator 3.

In this way, the waste incineration system of the waste incinerator according to an embodiment of the present invention does not discharge the wastewater generated in the facility for heating the waste heat boiler 4 by waste incineration into the river, and the organic particles together with inorganic waste water and time constant water. , After filtering to remove substances such as ionic particles, non-ionic particles, and heavy metals, they are converted into process water and recycled together with time constant water, thereby exerting an effect of preventing contamination of sewage by river discharge.

In this case, in the waste incineration system for waste water incineration according to an embodiment of the present invention, when re-waste water generated in a facility for heating the waste heat boiler 4 by waste incineration is reused, a separate reservoir or tank is not added. Since the sewage can be reused using the installed facility process water storage tank 17, there is an effect that the sewage can be reused by minimizing the cost of facility improvement without carrying out a separate extension construction.

In addition, the waste incineration system for waste water incineration according to an embodiment of the present invention recycles waste water generated in a facility for heating the waste heat boiler 4 by waste incineration as process water together with inorganic waste water and time constant water. It does not require a method of incineration by spraying the incinerator 3, so it exhibits an effect of preventing the thermal efficiency of the incinerator 3 from falling due to waste water.

On the other hand, the waste incineration system for waste water incineration according to an embodiment of the present invention is used as process water by supplying time water and recirculating water including re-waste water and inorganic waste water to the process water reservoir 17, in this case, recirculation. In supplying the water and the time constant, the problems that may be caused to the process water storage tank 17 are prevented in advance by the control of the control unit 27 as follows.

More specifically, first, four level meters, as described above, are installed in the process water reservoir 17, and the time constant upper level meter 21 is disposed at the highest position than the remaining level meters, and then, the upper part of the recycle water The level meter 22, the recirculating water lower level meter 23, and the time constant lower level meter 24 are arranged in order of height.

As described above, in a state in which four level meters are arranged at different heights, the ratio of the recycled water and the time constant stored in the process water storage tank is controlled by the following control of the control unit 27 in the process water storage tank 17. .

In this case, the control unit 27 proceeds with each of the <full water mode>, <low water mode>, <recycle water supply mode>, and <recycle water blocking mode> to determine the time constant and recycle water supplied to the process water reservoir 17. The amount is controlled.

First, <full water mode> proceeds when detecting a state in which the water level is full in the process water storage tank 17, in which case, the control unit 27 receives the first level signal from the time constant upper level meter 21. <Full mode> will proceed.

In this <full water mode>, the control unit 27 stops driving of the time constant opening / closing valve 25 and the recirculating water opening / closing valve 26 to block the time constant and recirculation water flowing into the process water reservoir 17. Therefore, the supply of the recycled water and the time constant is stopped in the process water reservoir 17 to prevent the process water from overflowing out of the process water reservoir 17.

On the other hand, the process water stored in the process water storage tank 17 in this state is supplied to the process water elevated tank 20 through the process water pumping pump 19, and the process water expensive tank 20 processes the process water purely. It is supplied so that it can be consumed in the process of incinerator (3) facilities such as facilities and semi-dry reaction tower facilities, and this process water supply operation continues. In this case, the water level in the process water storage tank 17 is lowered due to the consumption of the process water and goes down to the water level in the lower level meter 24 of the time constant. At this time, the time level lower level meter 24 is sent to the control unit 27. The fourth level signal is switched to the turn-off state. In this case, the control unit 27, which receives the fourth level signal and detects that the input is stopped, switches to the <water storage mode> and proceeds to the <water storage mode>.

<Reservoir mode> is a mode that proceeds when the water level in the process water reservoir 17 is low, and when the <Reservoir mode> is in progress, the control unit 27 turns on the time constant opening / closing valve 25 to turn on the process water. The water is allowed to flow into the reservoir (17). However, at this time, the recirculating water opening / closing valve 26 keeps the turn-off state to prevent the recirculating water from flowing into the process water reservoir 17, which is why the water level in the process water reservoir 17 is low. This is because, when the time constant water and the recycle water are supplied together, the ratio of the recycle water increases, and when the process water with the increased ratio of recycle water is purely treated, the pure water treatment efficiency of the pure water treatment facility can be reduced. In this embodiment, in order to not reduce the efficiency of pure water treatment in the pure water treatment facility, the control unit 27 turns on the time constant opening / closing valve 25 when switching to the <water storage mode>, so that only the time constant is transferred to the process water storage tank 17. It is allowed to flow in, and the recirculating water opening / closing valve 26 is turned off to block the inflow of recirculating water. In addition, since the recycled water is not always prepared in a large enough amount to fill the process water reservoir 17, if only the recycled water is supplied to the process water reservoir while the recycle water is not prepared, the process water reservoir 17 Since the water level does not increase, and the recirculating water supply pump 9 is idle, causing a problem of shortening the service life, only the time constant is supplied during the initial driving of the <water mode>.

As described above, in <reservoir mode>, only the first time constant water flows into the process water reservoir 17 to increase the water level of the process water reservoir 17, where the water level of the time constant during the progress of the <reservoir mode> is lower than the recycle water. When the third level signal is generated by increasing to the level meter 23, the control unit 27 switches to <recirculation water supply mode>, receives the third level signal, and switches to <recirculation water supply mode> By turning on and off the recirculating water opening and closing valve 26 in a state where the time constant opening and closing valve 25 is turned on, the recirculating water flows into the process water storage tank 17, so that the time and recirculating water are simultaneously supplied to the process water storage tank 17. As much as possible.

Next, in the process water reservoir 17, as the <recycling water supply mode> proceeds, the time constant and recirculating water flow in and the water level continues to rise to rise to the upper level meter 22 of the recirculating water. The level meter 22 transmits the second level signal to the control unit 27, and the control unit 27 that receives the second level signal is switched to the <recirculation water blocking mode> and is switched to the <recirculation water blocking mode>. The control unit 27 turns off the recirculating water opening / closing valve 26 in a state where only the time constant opening / closing valve 25 is turned on to block the recirculating water from entering the process water reservoir 17 so that only the time constant is introduced. Therefore, the ratio of the process water in the process water storage tank 17 is maintained in a state where there is more time constant than recycled water, so that the pure water treatment efficiency of the pure water treatment facility is not reduced, and the recycled water can be reused without discharge to the river. There will be.

Next, only the time constant water is supplied to the process water storage tank 17 through the progress of <recycled water blocking mode>, and the water level of the process water storage tank 17 rises, so that the water level in the process water storage tank 17 is the upper level meter 21 of the time constant water. ), The control unit 27 receives the first level signal from the upper level meter 21 of the time constant and switches to <full mode> to execute control driving for the above-mentioned <full mode> again, Each of a series of modes is sequentially re-executed.

As described above, when the waste incineration plant wastewater discharge system according to an embodiment of the present invention reuses recycled water including wastewater generated in a facility for heating the waste heat boiler 4 by waste incineration, it is installed in advance. By mixing the recycled water and the time constant water in the process water storage tank 17 to be available as process water, but by automatically adjusting the mixing ratio of the time constant and recycle water to occupy a greater proportion of the time constant than the recycled water to generate the process water, recycle It has the effect of minimizing the effect of water on the process equipment.

On the other hand, in the waste incineration system for waste water incineration according to an embodiment of the present invention, as described above, the control unit 27 in the <water storage mode> and <recycling water supply mode> is a time constant water on / off valve 25 and a recirculation water on / off valve By turning on (26), the time constant water and the recycle water are supplied to the process water reservoir 17, respectively.

In this case, the process water reservoir 17 supplies the time constant and the recirculating water from the two input pipes respectively connected to the time constant opening / closing valve 25 and the recirculating water opening / closing valve 26 to the process water storage tank 17, respectively. And the simultaneous supply of the recycled water is supplied with a large amount of process water, thereby causing the problem that the water level surface of the process water reservoir 17 is severe. In particular, when the time constant opening / closing valve 25 and the recirculating water opening / closing valve 26 are turned on at the same time as <recirculating water supply mode>, and the time constant and the recirculating water are simultaneously supplied, the level level of the recirculating water lower level meter 23 is severe. This causes the sloshing, and thereby, the third magnetic cylinder 23b flows according to the severe water level slurring, so that the first lead sensor 21d interlocking with the third magnetic cylinder 23b is turned on and then turned off. The operation is repeated to output the third level signal repeatedly. At this time, the control unit 27 repeatedly drives the recirculating water opening / closing valve 26 according to the repetitive input of the third level signal, and in this case, the recirculating water supply pump 9 is driven and then repeatedly stopped. Phosphorus is driven, which causes a problem of shortening the life of the recirculating water supply pump 9.

To this end, a waste incineration system for wastewater incineration according to an embodiment of the present invention may further include a reservoir tank 29, a sludge prevention body 30, and a hook 31.

The storage tank reinforcement 29 is formed in a rod shape so that both ends are coupled to the inner side surfaces of the process water storage tank 17, and when the process water storage tank 17 is full of process water, the storage tank does not open in the horizontal direction.

The sling prevention body 30 is formed in a rectangular cylindrical shape with an open top and a bottom, and is further provided with a bent portion 30a that is bent in a state in which a portion of the upper portion protrudes upward. Here, the time constant upper level meter 21, the recirculating water upper level meter 22, the recirculating water lower level meter 23 and the time constant lower level meter 24 are inserted into the bent portion 30a, such as a nut. A plurality of level meter coupling holes 30b to be fixed by the fastening member are further formed.

The hook portion 31 is composed of a plurality, is formed in a clasp shape and is coupled to the sludge prevention body 30 by bolting or welding. The hook portion 31 is caught by the reservoir tank 29, and serves to fix the sludge prevention body 30 in a seated state on the reservoir tank 29.

In this way, the sludge prevention body 30 is coupled to the reservoir tank 29, the time constant upper level meter 21, the recirculating water upper level meter 22, the recirculating water lower level meter 23, and the time constant lower level Combined with the meter 24, the time constant upper level meter 21, the recirculating water upper level meter 22, the recirculating water lower level meter 23, and the time constant lower level meter 24 each of the level meter coupling holes 30b It serves to provide a space that can be fixed to.

In the case of turning the time constant opening / closing valve 25 and the recirculating water opening / closing valve 26 simultaneously in the <recirculating water supply mode> as described above, the sling prevention body 30 is outside the body for preventing the sloshing of the water level. It is not in direct contact with the periphery of the time constant upper level meter 21, the recirculating water upper level meter 22, the recirculating water lower level meter 23 and the time constant lower level meter 24.

Therefore, the time constant upper level meter 21, the recirculating water upper level meter 22, the recirculating water lower level meter 23, and the time constant lower level meter 24 are the time constant opening / closing valve 25 in <recirculating water supply mode>. And when the recirculating water on / off valve 26 is turned on at the same time, the fluctuation of the water level does not affect each of the four level meters, so the recirculating water on / off valve 26 is turned on and off. Since it is not, the life of the recirculating water supply pump 9 is prevented from being shortened.

In addition, since the sling prevention body 30 is configured in a form hanging over the water storage tank 29 by the hook portion 31, the time constant upper level meter 21, the recirculating water upper level meter 22, and the recirculating water lower part Since the level meter 23 and the time constant lower level meter 24 are each repaired or checked, only the sludge prevention body 30 can be moved to check the four level meters at a time, thereby improving the convenience of maintenance work. To improve.

On the other hand, in the waste incineration system for waste water incineration according to an embodiment of the present invention, the overflow prevention pipe 32 is connected to the side of the vicinity of the upper portion of the process water reservoir 17, and the overflow prevention pipe 32 When the time constant upper level meter 21 exceeds the level measured when the time constant upper level meter 21 fails, it is discharged to the outside through the piping 32 for overflow prevention, so that the upper part of the process water reservoir 17 The process water is prevented from overflowing. In this case, the control unit 27 proceeds to <recirculation water blocking mode> to supply the time constant to the process water reservoir 17 in a state where only the time constant opening and closing valve is turned on, and the time constant upper level meter 21 is the first level signal. It must be generated to switch to <full mode>. However, when the time constant upper level meter 21 fails, the control unit 27 is not switched to the <full mode> and continuously drives the time constant water supply pump 18 unnecessarily, so that the time constant water supply pump 18 It will shorten the life.

In this way, in order to prevent the life of the time constant water supply pump 18 from being shortened, in the waste incineration plant waste water discharge system according to an embodiment of the present invention, the control unit 27 performs the <reservoir mode> <recycled water blocking mode> If it does not switch to <full mode> for a predetermined period of time from the time it is executed, the time constant upper level meter 21 is judged as a failure, and the time constant upper level meter is connected to the manager communication terminal 28 interworking with the control unit 27. The first level meter failure signal related to the failure of (21) is generated, and the administrator operating the communication terminal can check the first level meter failure signal to check the upper level meter 21 of the time constant.

Therefore, since the manager can confirm the failure of the upper level meter 21 of the time constant only by the first level meter failure signal output to the manager communication terminal 28, the initial response according to the time constant upper level meter 21 is quickly performed. It is possible to prevent the life of the time constant supply pump 18 from being shortened.

On the other hand, when the fourth level signal is received from the lower level meter 24 of the time constant while the process water level is gradually decreasing, the control unit 27 is switched to < low water mode > However, if the failure of the lower level meter 24 of the time constant occurs and the fourth level signal is continuously applied, the control unit 27 is not switched to the <storage mode> and is seriously unable to supply process water to facilities. It can cause problems.

To this end, when the water level is gradually lowered by proceeding to the <full water mode>, the control unit 27 switches to the <low water mode> for a predetermined time from the time when the third level signal is input from the recirculating water upper level meter 22. If not, it is determined that a failure has occurred in the lower level meter 24 of the time constant, and the fourth level meter failure signal is transmitted to the manager communication terminal 28. In this case, the manager checks the failure of the time constant lower level meter 24 through the fourth level meter failure signal output to the manager communication terminal 28, thereby quickly repairing the time constant lower level meter 24 to repair the equipment It will be possible to prevent an unsupplied situation in the field.

On the other hand, in the waste incineration system of the waste incinerator according to an embodiment of the present invention, when a failure of the upper level meter 22 of the recycled water occurs, the <recycled water blocking mode> cannot proceed, and the recycled water supply pump ( 9) Since it is continuously operated, it causes a problem of shortening the life of the recirculating water supply pump 9.

Accordingly, when the water level is gradually lowered by proceeding to the <full water mode>, the control unit 27 performs a second level signal from the recirculating water upper level meter 22 for a predetermined time from the time the <full water mode> is executed. When is not generated, when the third level signal is input from the lower level meter 23 of the recirculating water without inputting the second level signal or determining the upper level meter 22 of the recirculating water as a failure, the upper level meter of the recirculating water 22 ) Is determined as a failure, and the second level meter failure signal is transmitted to the manager communication terminal 28.

Therefore, the manager confirms whether the upper level meter 22 of the recirculating water has failed through the second level meter failure signal, and then immediately repairs the upper level meter 22 of the recirculating water, thereby causing the recirculating water supply pump 9 to be repaired. It is possible to solve the problem of continuous operation.

On the other hand, in the waste incineration system of the waste incineration plant according to an embodiment of the present invention, when a failure of the lower level meter 23 of the recycled water occurs, the control unit 27 cannot proceed to the <recycled water supply mode> and recycled water Is not used as process water, and this causes a problem that the recirculation water discharge tank 15 is switched to an overflow state.

Accordingly, when the water level is gradually lowered by proceeding to the <full water mode>, the control unit 27 receives the third level signal from the recirculating water lower level meter 23 for a predetermined time from the time the <full water mode> is executed. When is not generated, when the fourth level signal is input from the time constant lower level meter 24 without the input of the third level signal, the lower level meter 23 of the recycle water is judged as a failure Is determined to be a fault and the third level meter fault signal is transmitted to the manager communication terminal 28.

Accordingly, the manager checks whether the lower level meter 23 of the recycle water is broken through the third level meter failure signal, and then immediately repairs the lower level meter 23 of the recycle water, thereby allowing the recycle water discharge tank 15 to It is possible to solve the problem of transition to the overflow state.

As described above, in the present invention, specific matters such as specific components and the like have been described by limited embodiments and drawings, but these are provided only to help the overall understanding of the present invention, and the present invention is not limited to the above embodiments , Anyone having ordinary knowledge in the field to which the present invention pertains can make various modifications and variations from these descriptions.

Accordingly, the spirit of the present invention should not be limited to the described embodiments, and should not be determined, and all claims that are equivalent to or equivalent to the scope of the claims as well as the claims described below belong to the scope of the spirit of the present invention. .

1: Waste storage tank 2: Crane device
2a: overhead crane 2b: crane wire
2c: Knuckle crane 3: Incinerator
4: Waste heat boiler 5: Steam header
6: Semi-dry reaction tower 7: Filtration dust collector
8: Recirculation water storage tank 9: Recirculation water supply pump
10: recycled water chemical mixing tank 11: recycled water sedimentation tank
12: Recirculating water buffer tank 13: Recirculating water filter
14: recycled water activated carbon filter 15: recycled water discharge tank
16: Recirculating water pumping pump 17: Process water reservoir
18: time constant water supply pump 19: process water pumping pump
20: process water elevated tank 21: time constant upper level meter
21a: 1st magnetic part 21b: 1st magnetic cylinder
21c: 1st guide bar 21d: 1st lead sensor
21e: First lead wire 21f: First upper stopper
21g: first bottom stopper 22: recirculating water upper level meter
22a: second magnetic part 22b: second magnetic cylinder
22c: 2nd guide bar 22d: 2nd lead sensor
22e: Second lead wire 22f: Second upper stopper
22g: Second bottom stopper 23: Recirculating water lower level meter
23a: Third magnetic part 23b: Third magnetic cylinder
23c: 3rd guide bar 23d: 3rd lead sensor
23e: 3rd lead wire 23f: 3rd upper stopper
23g: 3rd lower stopper 24: Time constant lower level meter
24a: 4th magnetic part 24b: 4th magnetic cylinder
24c: 4th guide bar 24d: 4th lead sensor
24e: 4th lead wire 24f: 4th upper stopper
24g: 4th lower stopper 25: time constant valve
26: recirculating water opening and closing valve 27: control unit
28: Manager communication terminal 29: Water tank reinforcement
30: sloshing prevention body 30a: bent portion
30b: Level meter coupling hole 31: Hook
32: piping for preventing overflow

Claims (7)

A waste storage tank (1) for collecting garbage collected by entering a garbage collection vehicle;
A crane device (2) for lifting the garbage collected in the waste storage tank (1);
An incinerator (3) for receiving the waste lifted from the crane device (2) as an input port and incinerating the input waste;
A waste heat boiler (4) connected to the incinerator (3) and heated by receiving heat generated from the incinerator (3), and provided with a heating water receiving port in an upper portion to discharge steam from the heating water receiving port;
A steam header (5) connected to a heating water intake of the waste heat boiler (4) to receive heated steam and distribute heated steam;
Combined to communicate with the outlet from which the combustion gas of the waste heat boiler (4) is discharged, and spraying the dilution of slaked lime with the combustion gas discharged from the waste heat boiler (4) to absorb the acid gas contained in the combustion gas, but only with moisture A semi-dry reaction tower 6 for evaporating;
A filter dust collector (7) for collecting and collecting the reaction products produced in the semi-dry reaction tower (6);
The wastewater generated in the incinerator (3) is stored, and by supplying and storing inorganic wastewater including blowdown water, cleaning water, backwash water, and laboratory wastewater discharged from the incinerator (3), the wastewater is mixed. A recycle water storage tank (8) for storing recycle water;
A recirculating water supply pump (9) connected to the recirculating water storage tank (8) and pumping and supplying recirculating water supplied to the recirculating water storage tank (8);
A recirculating water chemical mixing tank 10 which receives the recirculating water in conjunction with the recirculating water supply pump 9 and mixes and mixes the aggregate with the recirculating water;
A recirculating water sedimentation tank 11 connected to the recirculating water chemical mixing tank 10 to precipitate recirculating water in which a flocculant is mixed in the recirculating water chemical mixing tank 10;
A recirculating water buffer tank 12 connected to the recirculating water sedimentation tank 11 and storing and buffering the filtered recirculating water excluding precipitates precipitated in the recirculating water sedimentation tank 11;
A recirculation water filter (13) connected to the recirculation water buffer (12) and allowing recirculating water stored in the recirculation water buffer (12) to be filtered through a filter medium;
A recycled water activated carbon filter (14) connected to the recycled water filter (13) and adsorbing organic matter by passing the filtered recycled water through the recycled water filter (13) through activated carbon;
A recycle water discharge tank 15 connected to the recycle water activated carbon filter 14 and storing filtered water filtered through the recycle water activated carbon filter 14;
A recirculating water pumping pump 16 connected to the recirculating water discharge tank 15 and pumping and supplying recirculating water stored in the recirculating water discharge tank 15;
A process water reservoir 17 connected to the recirculating water pumping pump 16 and receiving and storing recirculating water discharged from the recirculating water pumping pump 16;
A time constant water supply pump 18 connected to the process water storage tank 17 and supplying time constant water to the process water storage tank 17;
A process water pumping pump 19 connected to the process water storage tank 17 and pumping and supplying the time constant and recirculating water stored in the process water storage tank 17; And,
It is connected to the process water pumping pump 19 to store recirculating water and time constant water supplied from the process water pumping pump 19, and is disposed on the roof at a position higher than the incinerator 3, and the waste heat boiler 4 Process water expensive tank 20 is used as the process water supplied to the heating water receiving port, and is used as the process water of the process equipment installed around the incinerator 3; Waste incineration plant waste-free system comprising a.
According to claim 1,
A time constant upper level meter (21) that is installed in the process water reservoir (17) and measures the level of recirculated water stored in the process water reservoir (17) to generate a first level signal when the level of the recycle water is detected. );
It is installed in the process water reservoir (17), but is installed at a certain distance to the lower part of the upper level meter (21) of the time constant, and measures the water level of the recycled water stored in the process water reservoir (17) to measure the water level of the recycled water An upper level meter 22 for recirculating water generating a second level signal when is detected;
It is installed in the process water reservoir 17, but is installed at a certain distance to the bottom of the upper level meter 22 of the recycle water, and measures the water level of the recycle water stored in the process water reservoir 17 to measure the time constant and the A lower level meter 23 for recirculating water generating a third level signal when the level of the recirculating water is detected;
It is installed in the process water reservoir (17), but is installed at a certain distance to the lower part of the lower level meter (23) of the recirculating water, and measures the water level of the time constant and recirculating water stored in the process water storage tank (17). And a time constant lower level meter 24 generating a fourth level signal when the level of the recirculating water is detected.
A time constant opening / closing valve 25 installed between the time constant supply pump 18 and the process water storage tank 17;
A recirculating water opening / closing valve 26 installed between the recirculating water pumping pump 16 and the process water reservoir 17; And,
The time constant upper level meter 21, the recycle water upper level meter 22, the recycle water lower level meter 23, the time constant lower level meter 24, the time constant opening and closing valve 25, and the recycle water opening and closing When the first level signal is generated from the upper level meter 21 of the time constant, it is electrically connected to the valve 26 and proceeds to the full water mode, and is removed from the lower level meter 24 of the time constant during the full water mode. Turn off the time constant opening / closing valve 25 and the recirculating water opening / closing valve 26 until a level 4 signal is generated to block the time constant and recirculation water flowing into the process water reservoir 17, and in the full water mode in progress When the fourth level signal is inputted and stopped at the lower level meter 24 of the time constant, the water storage mode proceeds, and the constant time opening / closing valve 25 is turned on in the water mode to return to the process water storage tank 17. Allow the time constant to flow, and when the third level signal is generated by the lower level meter 23 of the recirculating water during the storage mode, the recirculating water supply mode is performed, and the recirculating water opening / closing valve in the recirculating water supply mode Turn on (26) to allow the recycle water to flow into the process water reservoir (17), and recycle when the second level signal is generated at the recycle level upper level meter (22) during the recycle water supply mode. A water blocking mode is performed, the recirculating water shut-off valve 26 is turned off in the recirculating water blocking mode to block the recirculating water from flowing into the process water reservoir 17, and the recirculating water blocking mode is in progress. , When the first level signal is generated from the time constant upper level meter 21, a control unit 27 that proceeds to the full water mode; Waste incineration system no waste water discharge system further comprising a.
According to claim 2,
A storage tank reinforcement 29 which is formed in a rod shape and is coupled to both inner side surfaces of the process water storage tank 17 so as not to open in the horizontal direction of the process water storage tank 17;
The upper and lower portions are formed in an open rectangular cylindrical shape, and further form a bent portion 30a that is bent in a state in which a portion of the upper portion protrudes upward, and a level meter coupling hole 30b is formed in the bent portion 30a. A plurality of these are formed, and each of the level meter coupling hole 30b has an upper level meter 21 of the time constant and an upper level meter 22 of the recycle water and a lower level meter 23 of the recycle water and the lower level of the time constant. Meter 24 is inserted and coupled to prevent slung 30; And,
It is composed of a plurality, formed in a clasp shape and coupled with the sludge prevention body 30, the hanger portion 31 hanging over the reservoir tank 29; Waste incineration system no waste water discharge system further comprising a.
According to claim 2,
Interlocked with the control unit 27, the control unit 27, the time constant upper level meter 21, the recycle water upper level meter 22, the recycle water lower level meter 23 and the time constant lower level meter ( When the failure signal for 24) is transmitted, the administrator communication terminal 28 to notify the administrator by outputting the alarm information; And,
When the control unit 27 does not switch to the full water mode for a predetermined period of time from the time when the recirculation water blocking mode is executed, it determines the upper level meter 21 of the time constant as a failure and interlocks with the control unit 27 Generating a first level meter failure signal related to the failure of the time constant upper level meter 21 to the manager communication terminal 28; Waste incineration system no waste water discharge system further comprising a.
According to claim 2,
Interlocked with the control unit 27, the control unit 27, the time constant upper level meter 21, the recycle water upper level meter 22, the recycle water lower level meter 23 and the time constant lower level meter ( When the failure signal for 24) is transmitted, the administrator communication terminal 28 to notify the administrator by outputting the alarm information; And,
When the water level is gradually lowered by proceeding to the full water mode, the control unit 27 is not switched to the water storage mode for a predetermined time from the time when the third level signal is input, and the lower time constant level meter 24 ), Determining that a failure has occurred and transmitting a fourth level meter failure signal to the manager communication terminal 28; Waste incineration system wastewater discharge system, characterized in that further comprises a.
According to claim 2,
Interlocked with the control unit 27, the control unit 27, the time constant upper level meter 21, the recycle water upper level meter 22, the recycle water lower level meter 23 and the time constant lower level meter ( When the failure signal for 24) is transmitted, the administrator communication terminal 28 to notify the administrator by outputting the alarm information; And,
When the water level is gradually lowered by proceeding to the full water mode, the control unit 27 generates the second level signal from the recirculating water upper level meter 22 for a predetermined time from the time when the full water mode is executed. If not, if the recirculation water upper level meter 22 is judged to be a failure or the third level signal is input from the recirculation water lower level meter 23 without inputting the second level signal, the recirculation water upper level Determining the meter 22 as a failure and transmitting a second level meter failure signal to the manager communication terminal 28; Waste incineration system wastewater discharge system, characterized in that further comprises a.
According to claim 2,
Interlocked with the control unit 27, the control unit 27, the time constant upper level meter 21, the recycle water upper level meter 22, the recycle water lower level meter 23 and the time constant lower level meter ( When the failure signal for 24) is transmitted, the administrator communication terminal 28 to notify the administrator by outputting the alarm information; And,
When the water level is gradually lowered by proceeding to the full water mode, the control unit 27 does not generate a third level signal from the recirculating water lower level meter 23 for a predetermined time from the time when the full water mode is executed. If not, when the fourth level signal is input from the time constant lower level meter 24 without input of the third level signal, the lower level meter 23 of the recycle water is judged as a failure. ) To determine the failure and transmit the third level meter failure signal to the manager communication terminal 28; Waste incineration system wastewater discharge system, characterized in that further comprises a.

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