KR20100119602A - Air pollution-free cremator - Google Patents

Abstract

PURPOSE: An air contamination preventive cremator, which can prevent air contamination by discharging air after filtering, is provided to remove the dust and all kinds of harmful materials from gaseous matter by cooling, filtering and neutralizing the combustion gas of the high temperature produced in Incineration. CONSTITUTION: An air contamination preventive cremator comprises a cremation furnace(100), first and second coolers(210,230), a cyclone dust collector(310), a heat exchanger(220), first and second purifiers(410,420), an electric dust collector(320), an guide draft fan and an exhaust pipe. The cremation furnace comprises first and second furnaces and a cooling compartment(130). The first cooler cools combustion gas. The cyclone dust collector collects the dust of the gas. The electric dust collector collects harmful material and fine dust. The guide draft fan compulsorily transfers the gas. The exhaust pipe discharges the purified air.

Description

Air pollution-free cremator

The present invention relates to a cremation incinerator, and more particularly, by effectively removing dust and various harmful pollutants contained in the gas generated in the combustion furnace to discharge the purified gas, it is possible to prevent air pollution by the makeup operation. The anti-pollution toilet which is.

The cremation incinerator is a furnace facility for supplying ashes by completely incinerating the dead body of a deceased person at a high temperature, and the use of the cremation incinerator is rapidly increasing as the funeral culture through cremation is generally spreading and increasing. I'm doing it. Such a cremation incinerator has a bogie method and a cabinet method depending on its installation method.

The general construction of such a cremation furnace includes a cremation furnace having a primary and secondary combustion furnaces that perform a cremation work, a cooling chamber for cooling the cremated ashes, and air containing dust generated when the cremation work is performed in the cremation furnace. It is divided into prevention facilities to purify and discharge to the atmosphere. Hot air containing fine dust generated when incineration of fluids and pipes in the first and second combustion furnaces of the crematory furnace and air containing dust generated in the process of moving the cremated ashes to the cooling chamber and cooling them The device is operated to enter a damper, cooled to a predetermined temperature, and then discharged to the atmosphere through a prevention facility equipped with a purification device.

As shown in FIG. 1, a cremation furnace according to the related art includes a revolving furnace 10 equipped with a primary combustion furnace 11, a secondary combustion furnace 12, and a cooling chamber 13, and inflow of air. Cooling device 20 for cooling the high temperature combustion gas, cyclone dust collecting device 30 for collecting dust or harmful substances contained in the combustion gas, filter dust collecting device 40, exhaust pipe 50, the cosmetic Combustion gas generated in the furnace 10 is composed of a manned blower 60 to be discharged to the outside through the exhaust pipe 40 along the pipe pipe 70 is connected in series.

As shown in FIG. 2, the combustion furnace generates combustion gas in the process of incineration of the fluid and the tube in the furnace 10 (S1), and the combustion gas is in a high temperature state of about 850 ° C. Becomes The combustion gas in such a high temperature state is mixed with air at room temperature while passing through the cooling device 20 and cooled below a predetermined temperature (S2), and the dust and various harmful substances contained in the cooled combustion gas are collected in the cyclone dust collector. The combustion gas collected by the device 30 and the bag filter 40 (S3, S4), and purified to some extent is discharged to the outside through the exhaust pipe 50 as it is (S5). Here, the combustion gas generated in the crematorium 10 is configured to move along the vent pipe 60 by the induction fan 50.

In the conventional furnace structure, although the dust or various contaminants contained in the combustion gas generated during the makeup operation can be removed to some extent while passing through the cooling device 20 and the dust collecting device 30, these Hazardous substances are not completely removed and are contained in a large amount in the combustion gas and are discharged to the outside as they are.

In particular, the combustion gas contains not only fine dust but also many kinds of harmful substances such as carbon monoxide, nitrogen oxides, sulfur oxides, hydrochloric acid and dioxins, which are emitted to the outside without being completely removed. Not only does it have a serious impact on air pollution, it also has a huge impact on human health.

Combustion gas from the cremation incinerator contains fine dust and various harmful substances, and these harmful substances have a serious effect on the outside air or the human body and must be completely removed and then discharged to the outside. In particular, since 2010, the standard for pollutant emission for cosmetic facilities is 70 ppm or less for nitrogen oxides and 0.5 ng or less for dioxins.

The present invention has been proposed to solve the above problems, by cooling, filtering and neutralizing the high-temperature combustion gas generated in the incineration process of the fluid or tube in multiple stages as well as dust contained in the combustion gas as well as carbon monoxide (CO) By effectively removing various harmful substances such as nitrogen oxides (NOx), sulfur oxides (SOx), hydrochloric acid (HCl) and dioxins, and then purifying the air, it is possible to prevent the pollution caused by the makeup work. An object of the present invention is to provide a mold make-up.

Pollution-proof cosmetics of the present invention for achieving the above object

The pollution-free toilet of the present invention having the above-described configuration cools, filters, and neutralizes high-temperature combustion gas generated in the process of incineration of a fluid or a tube in multiple stages, as well as nitrogen oxides, as well as dust contained in a gaseous substance. By efficiently removing various harmful substances such as sulfur oxides, hydrochloric acid and dioxin, and then purifying the air, it is possible to prevent air pollution by the makeup work.

The technical problem achieved by the present invention and the practice of the present invention will be more clearly understood by preferred embodiments of the present invention described below. The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 3 is a view showing the overall configuration of the makeup in accordance with an embodiment of the present invention.

Referring to Figure 3, the pollution-free toilet in accordance with an embodiment of the present invention is a cosmetic furnace 100, the first combustion furnace 110, the secondary combustion furnace 120 and the cooling chamber 130, and In the primary cooling device 210 for cooling the combustion gas generated in the crematorium 100, a cyclone dust collector 310 for collecting dust contained in the gas, and in the cyclone dust collector 310 Heat exchanger 220 for recycling the heat of the discharged gas, secondary cooling device 230 for cooling the gas discharged from the cyclone dust collector, and primary purification for adsorbing harmful substances contained in the gas Apparatus 410, an electrostatic precipitator 320 for collecting the harmful substances and fine dust, an attracting blower 500 for forcibly moving the gas, and a secondary for removing the harmful substances remaining in the gas. The purifier 420 and the air purified by the secondary purifier It is composed of an exhaust pipe 600 for discharging a.

More specifically, the above-described crematorium 100 is configured to incinerate the fluid and the pipe, and the primary combustion furnace 110 and the secondary combustion furnace 120 installed above the primary combustion furnace. ) And a cooling chamber 130 installed in front of the primary combustion furnace.

The primary combustion furnace 110 is a combustion furnace for incinerating the fluid and pipes placed in the furnace bogie 140 with a strong flame, and the furnace bogie 140 can be moved horizontally below. A roller or rail 141 is provided, and one side is provided with a combustion burner 111 for radiating a flame to the furnace bogie 140.

The secondary combustion furnace 121 is installed so as to communicate with the upper side of the primary combustion furnace combustion furnace for completely burning the unburned material contained in the gas or smoke generated in the primary combustion furnace (110) ), One side is provided with a combustion burner 121 for radiating a flame. In addition, a hole for gas movement is formed in the upper side, and the vent pipe 700 to be described later is installed in the hole so that the combustion gas generated through the primary and secondary combustion processes can be discharged.

The cooling chamber 130 is a space installed in front of the primary combustion furnace 110, the fluid or pipe is loaded into the furnace bogie 140 to flow into the primary combustion furnace 110, or the primary combustion furnace It is a space for performing operations such as cooling out the ashes cremated at 110. To this end, a roller or a rail is provided at the lower side to move the furnace bogie 140 horizontally, and the pipe transferred by the electric bogie (not shown) is loaded on the furnace bogie to the primary combustion furnace 110. It will be moved to perform makeup. At this time, between the primary combustion furnace 110 and the cooling chamber 130, the opening and closing door 112 is provided to be opened and closed in conjunction with the flow-out process of the furnace bogie 140.

The above-described primary cooling device 210 is composed of an air mixing device for cooling the high temperature combustion gas generated in the primary and secondary combustion furnaces 110 and 120 to a predetermined temperature or less, and the cooling device 210. It is configured to cool by injecting air at room temperature to the combustion gas of a high temperature state passing through.

In the primary and secondary combustion furnaces (110, 120), a strong flame is emitted to incinerate the fluid and the tube, which causes a hot gas after combustion. In this case, the temperature of the gas is about 850 ° C. When the high temperature gas flows directly into the cyclone dust collector 310, which will be described later, the components are disturbed or malfunction due to high temperature heat. In order to prevent this, the primary cooling device 210 directly mixes air at room temperature with high temperature gas so that the temperature drops. The primary cooling device according to an embodiment of the present invention has a temperature of about 850 ° C. The gas flowing into the furnace is dropped to about 700 ° C to be discharged.

The cyclone dust collector 310 is configured to collect relatively bulky foreign substances such as combustion ash or dust contained in the gas, and the gas discharged after being cooled to about 700 ° C. in the primary cooling device 210 is discharged. Inflow is collected to remove the foreign matter as described above.

The heat exchanger 220 described above is configured to recycle high temperature heat generated from the combustion furnace, and the combustion gas discharged from the cyclone dust collector 310 is about 650 ° C. The heat exchange is performed by the contact surface using the air and the pipe of the room temperature state supplied from the outside while flowing along 700). At this time, the injected air at room temperature by heat exchange is heated to about 300 ℃, the combustion gas flowing through the vent pipe 700 is cooled to about 500 ℃. The air heated to about 300 ° C by heat exchange is supplied to the inside of the first and second combustion furnaces 110 and 120 again to increase the temperature inside the combustion furnace so that the initial ignition and combustion can be easily performed. To this end, the heat exchanger body 221 is provided with a blower 222 for injecting air from the outside.

The above-described secondary cooling device 230 is a configuration for further lowering the temperature of the gas in order to activate the reaction in the primary purification device 410 using a reagent described later. The temperature of the gas discharged through the heat exchanger 220 is about 500 ° C., but the reactant cannot be activated at such a high temperature, so the temperature must be dropped to about 180 ° C. In addition, in order to prevent resynthesis of dioxins, it is necessary to quench at a temperature of about 180 ° C.

The secondary cooling device 230 is a kind of heat exchanger, and unlike the primary cooling device 210, the air at room temperature is not directly mixed, but is configured to be indirectly cooled by a contact surface using a pipe. That is, the primary cooling device 210 is made of a direct cooling method by mixing air, but the secondary cooling device 230 is made of an indirect cooling method by contact of refrigerant. As illustrated, a blower 232 for injection of refrigerant gas is provided in a separate refrigerant device 231 for rapid cooling.

The primary purification device 410 described above is composed of a dry reactor 411 to remove harmful substances contained in the gas after the bulky dust is collected by the cyclone dust collector 310, and cooled to about 180 ° C. The gas contains a large amount of harmful substances of dioxins or acidic components. When the gas enters the reactor 411, the gas is adsorbed and absorbed by the reactant 412 supplied from the outside. Activated carbon or slaked lime is used as the reactant 412 supplied according to an embodiment of the present invention, and these reactants 412 exhibit excellent reactivity with dioxins and acid gases.

The electrostatic precipitator 320 is configured to remove harmful substances adsorbed and absorbed by the primary purifier 410, and collects harmful substances and fine dust adsorbed by the reactant by using electromagnetic characteristics. Will be filtered out.

The above-mentioned attraction fan 500 is configured to forcibly move the combustion gas generated in the crematorium 100, and the combustion gas is finally exhausted along the exhaust pipe 700 described later by the attraction fan 500. It is discharged to the outside through 600, and various dusts or harmful substances are removed in the process of passing through each component.

The secondary purification device 420 described above is configured to finally remove dioxins or nitrogen oxides (NOx) remaining in the gas. While the combustion gas passes through the cyclone dust collector 310, the primary purifier 410, and the electrostatic precipitator 320, a lot of dust and harmful substances are removed, but residual dioxin, nitrogen oxides, and carbon monoxide remain in the gas. Will be. The secondary purifier 420 is composed of a heater 421, an ammonia reactor 422 and a catalytic reactor 423 to remove such residual harmful substances.

The heater 421 is configured to increase the temperature of the gas introduced to a certain temperature in order to increase the activity of the reaction in the ammonia reactor 422 and the catalytic reactor 423. In order for the combustion gas to efficiently react with ammonia and the catalyst, the reaction temperature should be about 300 ° C., and the gas discharged from the electrostatic precipitator 320 maintains a temperature of about 180 ° C. Accordingly, the heater 421 heats the gas passing through the heater 421 by using a fuel such as LNG mixed with air to raise the temperature of the gas to about 300 ° C. In this case, a catalyst filter of a noble metal such as platinum may be built in the heater to be configured to remove harmful substances of dioxins at the same time as heating.

The ammonia reactor 422 and the catalytic reactor 423 are configured to neutralize and remove nitrogen oxides and dioxins remaining in the gas. The ammonia reactor 422 is supplied with ammonia water and reacts with the gas to form nitrogen. Remove the oxide. That is, as 2NO2 + O2 + 4NH3-> 3N2 + 6H2O, the ammonia generates nitrogen and water by a reduction reaction with nitrogen oxides. At this time, organic substances such as dioxins (CxHy) contained in the combustion gas are also removed by causing an oxidation reaction with oxygen (O2).

At this time, although not shown, the exhaust pipe 600 finally discharged from the combustion gas is further provided with a TMS (TeleMeter System) for analyzing the harmful components contained in the combustion gas, according to the result of the TMS the ammonia reactor 422 ) To control the ammonia water supply.

In addition, the catalytic reactor 423 is provided with a catalyst filter using a precious metal such as platinum, tungsten, vanadium and the like to remove harmful substances and unburned gas of dioxins (CxHy) included in the gas.

The temperature of the gas finally discharged through the exhaust pipe 600 by the heater 421 drops to about 250 ° C. while passing through the ammonia reactor 422 and the catalytic reactor 423. It is possible to prevent the white smoke phenomenon that occurs when the discharge to the outside. That is, the gas passed through the reactors 422 and 423 contains about 10% of water, and when the gas is suddenly mixed with external air having a temperature as low as 5 ° C. at a temperature of about 100 to 150 ° C., the moisture contained in the gas Condensation causes white smoke that looks like white smoke. However, when the gas is discharged at a relatively high temperature of about 250 ° C., the white smoke phenomenon does not appear, and this white smoke phenomenon occurs mainly in winter when the temperature is low.

The exhaust pipe 600 is a configuration for the combustion gas generated in the crematorium 100 to be purified by the respective components and finally discharged to the outside, so that the respective components are communicated by the vent pipe 700. It is composed.

In addition, the pollution prevention toilet according to an embodiment of the present invention is further provided with a catalytic device 430 for removing residual harmful components and odor contained in the gas discharged from the electrostatic precipitator (320).

As described above, the gas discharged from the electrostatic precipitator 320 includes a severe odor from the combustion gas together with the residual harmful components including dioxins. Therefore, the catalyst device 430 is composed of a DNA filter to remove the odor, the catalyst device is generated from the combustion gas discharged from the electrostatic precipitator 320 in a relatively low temperature state compared to the catalytic reactor 423 The odor is adsorbed and removed, and residual dioxins are also removed.

Figure 4 is a flow chart showing a purification process of the toilet in accordance with an embodiment of the present invention.

Referring to Figure 4, when looking at the combustion gas purification process of the pollution-free toilet in accordance with an embodiment of the present invention, when burning the fluid and the tube in the toilet 100, the primary combustion furnace 110 and secondary combustion In the furnace 120, a large amount of combustion gas is generated at a high temperature of about 850 ° C. (S10), and the high temperature combustion gas is cooled to about 700 ° C. by the primary cooling device 210 to generate combustion gas in the cooling chamber. With the cyclone dust collector is introduced (S11).

In the cyclone dust collector 310, relatively large dusts are collected and removed (S12), and the combustion gas of about 650 ° C discharged from the cyclone dust collector 310 is used to heat the combustion furnace by heat exchange (S13), The secondary cooling device 230 is cooled to about 180 ℃ (S14). The cooled gas is introduced into the primary purification device 410, and harmful substances such as dioxins are adsorbed by the reactant 412 such as activated carbon or slaked lime in the reactor 411 and introduced into the electrostatic precipitator 320 (S15). In the electrostatic precipitator 320, the harmful substances adsorbed to the reactants and the fine dust are filtered and discharged (S16). The odor and dioxins contained in the gas discharged from the electrostatic precipitator 320 are removed by the DNA filter, which is the low temperature catalyst device 430, and then flows into the heater (S17).

The temperature of the gas discharged from the catalyst device 430 is about 180 ° C, which is introduced into the heater 421 and raised to a temperature of about 300 ° C to improve the activity of the reaction for ammonia and the catalyst. (S19). The gas whose temperature is raised is removed after carbon monoxide, nitrogen oxide and dioxin are removed through the ammonia reactor 422 and the catalytic reactor 423 (S20), and discharged to the outside through the exhaust pipe 600 (S21).

On the other hand, the gas before flowing into the heater 421 and the gas discharged from the catalytic reactor 423 is to be heat exchanged in the heat exchanger 240 (S18), the gas discharged from the relatively high temperature catalytic reactor 423 The heat of may be used to raise the temperature of the gas flowing into the heater 421.

In addition, the above-described series of processes are not shown, but are connected to a programmable logic controller (PLC) of the central monitoring unit to control each component to operate in conjunction with each other.

Analysis results of the combustion gas generated in the pollution-free toilet according to an embodiment of the present invention are shown in the following table.

[table]

division Second combustion furnace exit Electrostatic precipitator exit Purifier Outlet Exhaust Pipe Exit reaction Combustion Activated carbon / slaked lime Ammonia Water / Catalyst vent pipe CO (ppm) 70 or less 70 or less 40 or less 40 or less NOx (ppm) 95 or less 95 or less 40 or less 40 or less SOx (ppm) below 10 8 or less 8 or less 8 or less HCl (ppm) below 10 8 or less 8 or less 8 or less Dust (mg / Sm3) 30 or less 8 or less 8 or less 8 or less Dioxin (ng-TEQ / Nm3) 2 or less 0.06 or less Less than 0.008 Less than 0.008 Temperature (℃) 850 180 250 250 White smoke none

As shown in [Table], the dust and various harmful substances contained in the combustion gas generated in the toilet are removed in several stages, and the gas discharged to the exhaust pipe is finally cleaned and cleaned. It can be seen that the discharge.

Although the embodiments of the present invention have been described with reference to the present invention, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

1 is a view showing the overall configuration of a cremation furnace according to the prior art,

2 is a flow chart showing a purification process of a cosmetic furnace according to the prior art;

3 is a view showing the overall configuration of the makeup in accordance with an embodiment of the present invention,

Figure 4 is a flow chart showing the purification process of the crematorium according to an embodiment of the present invention.

** Description of symbols for the main parts of the drawing **

100: cremation furnace 110: primary combustion furnace

120: secondary combustion furnace 130: cooling chamber

210: primary cooling device 220: heat exchanger

230: secondary cooling device 310: cyclone dust collector

320: electrostatic precipitator 410: primary purification device

420: secondary purification device 421: heater

422 ammonia reactor 423 catalytic reactor

430: catalytic device 500: manned blower

600: exhaust pipe 700: vent pipe

Claims (2)

A first furnace, a second furnace and a cremation chamber provided with a cooling chamber; An air mixing device for cooling the gas by mixing air at room temperature with hot gas generated in the secondary combustion furnace; A cyclone dust collector for collecting dust contained in the gas generated in the cooling chamber and the gas discharged from the air mixing device; A heat exchanger for raising a temperature inside the primary combustion furnace and the secondary combustion furnace by using heat of a gas discharged from the cyclone dust collector by heat exchange; A cooling device for quenching combustion gas discharged from the heat exchanger using a refrigerant gas; An adsorption device for adsorbing harmful substances contained in the cooled gas; An electrostatic precipitator for collecting harmful substances and fine dust adsorbed by the adsorption device; Attractor exhaust fan for forcibly moving the gas generated in the toilet; A DNA catalyst device for removing harmful substances remaining in the gas discharged from the electrostatic precipitator; A heater for raising the temperature of the gas discharged from the catalyst device, an ammonia reactor for ammonia reaction of the gas discharged through the heater, and a catalytic reactor for catalytic reaction of the gas discharged through the ammonia reactor Purifier; And Pollution-proof cosmetics comprising a; exhaust pipe discharged from the purifying device is discharged to the outside. The method of claim 1, The exhaust pipe is further provided with a TMS (TeleMeter System) for analyzing the components of the exhaust gas discharged, the ammonia reactor of the purifier is provided with a control unit linked to the TMS to control the amount of ammonia injection, Pollution-proof cosmetics, characterized in that configured to be controlled in real time the ammonia injection amount in accordance with the result of the TMS.

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