KR100664975B1 - Stirred Fluidized Bed Melting Plasma Incinerator - Google Patents

Abstract

A crushing pulverizer (1) installed in a trash inlet hopper that dehydrates various general household wastes, industrial, hospital schools, and livestock manure sludge (low temperature combustion) and supplies them to a stirred drying incinerator, and food waste sludge containing large amounts of water. And a screw compression dewatering device (2) installed in a trash inlet hopper for supplying the compressed and dewatered feed to a stirred drying incinerator, and a primary stirred dry incinerator apparatus body (3) for receiving and supplying the stirred dry incinerator (low temperature combustion), and the combustion in the incinerator. Secondary fluidized-bed molten incinerator body 8 for reburning (burning) unburned powder and ash produced during cooling, and a cooling filtration cyclone dust filter for quenching and filtering the gas and dust generated during the internal combustion process of the incinerator body. Apparatus main body 13, a fluidized bed activated carbon filtration device 14 for repurifying the clean gas filtered therein, and an attracting blower 18 for attracting and discharging gas. It is composed of a filtration washing tower 15 for completely processing untreated dust and gas, a high pressure pump 16 for supplying cooling water and washing water, and a cooling water storage tank 17 for storing circulating cooling water. It is an incinerator system that emits harmful gas generated in the process as harmless clean gas.

In addition, this product draws unburned gas and water vapor generated during the combustion process in the primary (low temperature combustion) stirred dry incinerator (3) into the cyclone dust collector (4) and the condenser (5) by an induction blower (k). The dust is dropped in the vortex process and re-injected into the stirring drum of the first stirring dry incinerator (3), and the steam and gas are separated in the condenser (5). The water vapor is condensed and stored in the condensate tank (20) and water is removed. Gas is a pollution-free incinerator that does not generate harmful gases because it is completely burned into the fluidized bed coke melting furnace combustion chamber (A).

Description

Stirred fluidized bed molten plasma incinerator

1 is a detailed explanatory view of the structure of the stirred fluidized-bed plasma incinerator of the present invention.

FIG. 1 (A) is an explanatory diagram schematically showing the main stirring, drying and incinerator body in FIG.

1 (B) is an explanatory view schematically showing the configuration of the fluidized-bed molten incinerator main body and the cooling filtration cyclone dust collecting body coupled to the right side of FIG.

FIG. 1C is an explanatory view showing an activated carbon filtration device and a filtration washing tower installed on the right side of FIG. 1B.

○○○ Explanation of symbols for main parts of drawing ○○○

1, crushing and crushing device installed in the hopper

2, compression screw dewatering device installed in the hopper

3, primary stirring, drying, incinerator body 4, cyclone dust collector

5, Cooling water condenser 6, Stirring motor

7, stirring shaft cooling ring blower 8, secondary fluidized bed incineration furnace body

9, preheat burner heat tank 10, cooling ring blower

11. Power Supply 12, Coolant Tank

13, cooling filtration cyclone dust collecting base 14, fluidized bed activated carbon filtration device                 

15, filtration scrubber tower 16. cooling water circulation pump

17, cooling water storage tank 18, manned blower

19, incineration ash compressed screw 20, condensate storage tank

21, screw and wing 22, screw shaft (hollow shaft)

23. Coolant, pump 24, activated carbon protection net

25. Year

A, Secondary Fluidized Bed Coke Melting Furnace Combustion Chamber

B, tertiary acetylene, torch and infrared combustion chamber

C, 4th Plasma (Arc) Torch, Combustion Chamber D, Oscillator (Vibratory)

E, air-cooled heat exchanger.Pipe F, coolant heat exchanger, piping

G, porous mesh H, opening and closing door

K, gas transfer ring blower M, cascade combustion chamber

N, bag, filter P, partition slag, container

R, Steam pressure safety valve T, Coolant radiator heat exchanger

S, Air spray nozzle V, Passage

The present invention dehydrates, shreds, and pulverizes various mixed wastes generated from general household wastes, food, manure, sludge, slaughter hospitals, and school factories, and then incinerates them with low temperature combustion primary stirring and drying incinerator main body (3) (300-400 degrees). And redox redox and anoxic electric plasma (arc) torch in the fluidized bed molten coke incineration combustion chamber (1300 ° C.) installed in the high temperature combustion secondary fluidized bed molten incinerator body 8 for reburning unburned gas and ash. Hazardous gases and the like are decomposed and reduced in the combustion chamber (1500 ° C), and the gases and dust are cooled by the primary cooling vortex rotation in the cooling filtration cyclone dust collector (13), so that some of the dust falls back into the fluidized-bed coke melting incinerator. It is re-burned and the gas rises vertically by the suction power of the attraction and the blower and passes through the cooling water large-ether heat exchanger, which is the secondary cooling system, to become secondary cooling and vertical phase. The dust is removed while passing through the bag filter, and the clean gas is mixed with fresh external cooling air injected from the nozzle installed therein, and the harmful components are decomposed and adsorbed in the fluidized activated carbon filter (14). The present invention relates to an agitated fluidized-bed plasma incinerator system in which clean gas purified by the washing water injected from the filtration washing tower 15 dispersion nozzle is discharged to the flue.

In the process of industrialization of the present society, the land and water pollution problem is serious.

Industrial waste generated at each industrial site and household waste generated in each household; Since most of them depend on landfills, groundwater quality pollution is a problem because of soil contamination and leachate from them. As a result, government institutes set up incinerators to incinerate waste in many places, such as Guangshi and public institutions, school factories, and livestock farms. However, the incineration process is inadequate, and various harmful gases generated during the incineration process are extremely polluting the atmospheric environment.

The applicant has registered an incinerator with a stirrer as Utility Model Registration No. 0203720.

The present invention is to solve the troublesome problem of separate collection of household waste and to harm the harmful combustion gas due to incineration.

Primary dehydration pulverization, stirring and drying incineration at low temperature, where the unburned gas and dust are burned and oxidized again in a high temperature secondary fluidized bed coke molten incinerator (1300 ℃). After reduction and decomposition, re-decomposition and oxidation in the vertical upper third acetylene torch infrared combustion chamber (2000 degrees), followed by high temperature combustion such as the vertical upper fourth anoxic electric plasma (arc) torch combustion chamber (1500 ℃) After the redox decomposition of nitrogen oxides, hydrocarbons, carbon monoxide, dioxin, and sulfur oxides, which are harmful to the environment, they are discharged at high temperature to reprocess gases or dusts harmful to the air environment. In the process of turning in the dust collector, the dust and gas are separated by the cooling process, and the dust falls to the bottom, partly is re-injected into the fluidized molten-body combustion chamber and is burned, and some is discharged to the ash discharge collector and cooled gas And scattered dust are lifted up by the attraction force of the manned blower and passed through the coolant radiator heat exchanger. While the gas is passed through the bag filter, dust is removed (95%), and the clean gas passes through the fluidized activated carbon filter tank with fresh air (ring blower) and air at the same temperature as the mixing atmosphere. After the oxidative decomposition and adsorption of sulfur oxides and harmful constituents, fresh air is cleaned by the water mist spray nozzle washing water of the filtration scrubber tower, and is composed of a stirring fluidized bed melting furnace apparatus body and a cooling filtration cyclone dust collector device body. will be.

As shown in FIG. 1, various wastes and sludges are introduced into a hopper according to the present invention. 8) and a cooling filtration cyclone scrubbing body 3 for cooling the combined combustion gas integrally therewith, a fluidized bed activated carbon filter 14 for reprocessing the combustion gas, and a filtration wash 15.

(Reference) Low temperature combustion primary stirred dry burning furnace main body (3) has incineration temperature (300 ~ 400 ℃) as shown in Fig. 1 (A), and the upper and lower stirring drums and stirring screws Each is installed separately, and the outside is connected to the pulley of the stirring shaft drive motor by one chain belt, so that the stirring screw shaft wings are driven in the same way.

The primary stirred dry incinerator body 3 described above is

The crushing crusher 1 installed in the waste hopper at the top and the screw compression dehydrator 2 provided in the hopper containing a large amount of water are also integrally installed.

Then, the stirring shaft 22 is fixed to the central shaft fixing grooves of the left and right drums on both horizontal center walls of the upper and lower stirring drums of the primary stirring and drying furnace body 3, and the waste conveying screw is disposed on the stirring rotating shaft 22. Wings 21 are coupled to each other at regular intervals, the wings are in a spiral form, the wings are in a spiral form, and the waste and incineration material is stirred (diluted) in the axial rotation direction and the screw shaft (22) Shaft) has a cooling air passage and receives cooling air from the coupling ring blower (7) to the shaft cooling ring blower (7) and the pipe pipe outside the stirring drum to cool the stirring screw shaft (22) Incineration wastes are also burnt and oxidized into this cooling air.

And the stirrer shaft drive motor 6 is attached to the lower left of the outer side is connected to each shaft pulley and chain belt, the shaft connected to each pulley by the rotation of the drive motor 6 is slowly rotated connected with the screw.

In addition, the combustion gas discharge pipe (duct) is coupled to the upper left side of the primary stirred dry incinerator main body (3), and one end is coupled to the cyclone dust collector (4), and the coolant condenser (5) and the combustion gas are transported to the side. The melting ring (K) is combined with each other in parallel with the gas discharge pipe, and one end pipe of the feeding ring (K) is combined with the lower injection nozzle (A) of the high temperature combustion secondary fluidized bed coke melting furnace (to be described later). Thus, the incomplete combustion gas of the primary combustion chamber is transferred to and combusted.

And the cyclone dust collector (4) and the cooling water condenser (5) combined with the primary stirred dry incinerator (3) is an incomplete combustion gas generated during the low-temperature combustion of the waste in the incinerator body (3), soot and water vapor Dust,

Dust is separated in the cyclone dust collector (4) and recirculated and burned into the combustion chamber in the primary stirred dry incinerator body (3) described above. Water vapor and incomplete gas are separated in the cooling water condenser (5). The incomplete gas is injected into the condensate storage tank 20 installed at the lower side and the incomplete gas is injected into the combustion chamber of the hot combustion fluidized bed coke melting furnace (A) (described later) along the pipeline with the suction pressure of the ring blower (k) installed in the gas transfer pipe. Supplied to the nozzle will be completely decomposition combustion redox

In addition, the upper and lower stirring drum portions of the primary stirred dry incinerator body 3 and the fluidized bed melting furnace body 8 (to be described later) are integrally coupled to each other and the primary fluidized-bed coke melting furnace combustion chamber (A) on the right side is provided. Gas and incineration ash and fluidized media (sand, limestone) are continuously circulated by the rotational force of the rotary blades 21 of the screw shaft 22 at both sides of the upper secondary grating combustion chamber and the upper and lower binding portions of the stirring drum. Both passages are open to do so.

And the fluidized melting furnace body (8)

As shown in FIG. 1B, a preheat burner, a coke inlet (not shown), an air (oxygen) supply device, etc. are installed on the outer wall according to a suitable element, and a high temperature combustion primary fluidized bed is located at the bottom of the inner wall. A coke blast furnace combustion chamber (A) (approximately 1300 degrees) is installed in the lower end of the center, and a gas injection nozzle is combined with the pipe end of the gas transfer ring blower (K) described above in the combustion process of the primary stirred dry incinerator (3). Incomplete combustion of the incomplete gas is generated, and vertically down and down to collect incineration ash and slag. The isolation wall and slag collector (P) is installed in the form of opening and closing, and the thermal insulation year (25) in the fluidized-bed coke melting furnace (A) is spaced at a certain interval directly above the primary casing grate (M) (fixed type). ) Is fixed to the inner wall of the main body (8), and the secondary combustion chamber thermal protection grating (M) is installed in the vertical upper part.

In the upper part, the high-temperature combustion tertiary acetyl-torch infra-red combustion chamber (B) (2000 degrees) which redox-reduces the combustion harmful gas generated from the lower part and the redox-reduction treatment of noxious gas dioxins and nitrogen oxides vertically. An anaerobic quaternary plasma (arc) torch combustion chamber (C) (approximately 1300 degrees) is installed in the inner wall of the power supply unit 11 and the coupling body 8, and the right inner and outer walls penetrate to form a combustion gas outlet (described later). The internal structure of the fluidized bed melting furnace main body 8 is combined with the cooling filtration cyclone dust collecting base 13 and thus sequentially.

In addition, an incinerator overheating cooling water tank 12 and a steam pressure safety valve R are installed in the main body 8 above the main body 8.

And in the vertical lower part of the main body 8, the ash discharge compression screw 19 for discharging the incineration ash is installed at the bottom of the incineration ash collecting hopper to discharge the incineration ash outwards, and the upper and lower two dust ash circulation passages on the right side thereof (described later) The cooling filtration cyclone dust collecting base (13) is opened in combination with the discharge passage of the lower end.

In addition, the cooling filtration cyclone dust collecting body (13)

The inlet and outlet of the incineration ash of the fluid melting furnace main body 8 of the above-described vertical lower portion is coupled to the outlet and inlet of the combustion gas and fly ash,

As shown in FIG. 1 (B), the above-mentioned fluid phase melting furnace main body 8 and the lower right coupling portion have a cylindrical shape, and the inside of the cylinder is separated up and down, and the porous wire mesh (sieve) (G) separating the incineration ash is selected. The cylinder is installed in the cylinder as shown in the drawing, and the lower end is pivoted in the cooling filtration cyclone main body 13 through the coupling with the passage of the incineration ash discharge screw 19 in the re-collection hopper of the fluidized bed melting furnace main body 8 described above. The dust which has been cooled down is discharged out by the re-extraction compression screw 19 via the recollection hopper.

One end is combined into the fluidized-bed coke melting furnace combustion chamber (A), and the dropped dust is recycled into the combustion chamber.

The upper gas inlet of the upper portion of the cooling filtration cyclone dust collecting body 13 is combined with the upper right combustion gas outlet of the fluidized bed melting furnace main body 8 so that combustion exhaust gas and dust are introduced.

In addition, the internal structure of the cooling filtration cyclone dust collecting base 13 includes a primary cooling heat exchange chamber, a secondary cooling heat exchange chamber, a bag filter (N) (dry) filtration chamber, and a vibrator (D) that vibrates dust from the same. Air injection nozzle (S) and the hopper-type outlet for discharging the falling ash at the lower end

The primary cooling heat exchange chamber inside the cooling filtration cyclone dust collecting body 13 has the cooling filtration cyclone dust collecting base body for quenching the hot combustion gas and the dust discharged from the fluidized bed melting furnace body 8 described above. 13) The primary coolant heat exchange circulation pipe (F) is spirally installed on the inner wall, and the pipe end is coupled to the external coolant circulation pump 16 through the outer wall of the main body (13). Air cooling pipe (E) is also installed in the helical projection of the lower end of the hopper, the end is coupled to the external cooling ring blower (10) to cool the high-temperature gas, the preheated hot air is the fluidized bed melting furnace body (8) It is supplied to the lower injection nozzle of each preheat burner installed in the above and the above-mentioned fluidized bed coke melting furnace combustion chamber (A) to supply the fluid medium (sand, limestone, incinerator) to the primary grate flue (25) by a strong spray line. Continue to circulate through the flow

In addition, the dust and the hot gas introduced into the hot combustion fluid melting furnace main body (8) described above are first cooled while turning in the cooling filtration cyclone dust collecting base body (13), and the dust falls downward and the gas (described later). ) Ascends to the secondary heat-cooling exchange chamber vertically by the suction force of the attraction fan 18.

In addition, the secondary cooling heat exchange chamber structure has a cylindrical hopper shape, and a cooling water radiator heat exchanger (T) is installed in the secondary heat exchange chamber cyclone body (13) in the inner center portion, where the gas heat is (80 degrees). Fine dust is removed by the bag filter (N) which is lowered to within) and bound to the vertical part, and the removed dust falls and is discharged to the lower ash outlet, and the gas passes through the air spray nozzle (S) installed here. After being mixed with fresh air injected, the gas is re-purified through the fluidized bed activated carbon filtration device 14 and the filtration washing tower 15 through the discharge duct to discharge clean gas that is harmless to the human body and free of environmental pollution. Will be

As described above, the stirred fluidized-bed plasma incineration furnace system of FIG. 1 of the present invention is subjected to dehydration pulverization by injecting various mixed wastes into an incinerator (low temperature combustion). High temperature combustion secondary flow commercial melt incinerator main body (8), which completely burns carbon dust, incomplete harmful gas, etc., and also cooling filtration cyclone dust collecting body (13), which cools and filters harmful gases and fugitive ashes emitted during combustion. It consists of a fluidized bed activated carbon filtration device 14 for reprocessing gas and dust, and a filtration washing tower 15 for completely removing harmful gas and dust by washing water (fog injection). Wastes can be completely and cleanly incinerated at high temperature to eliminate secondary water pollution caused by landfill and air pollution due to incineration, and the heat capacity of the fluid is very high. Due to its size, it is possible to mix and burn any of the liquid and humid solids, and the burning time is short.

It is also a continuous incinerator and can be installed in small incinerators, medium incinerators and large incinerators.

High combustion efficiency results in less combustion and no pollution in incineration ash.

No smell because incinerator's temperature is high

Claims (5)

delete Incomplete combustion gas and unburnt generated by the primary mixed-dry incinerator main body (3), which is mixed with each of the mixed wastes in the incinerator hopper, which is dehydrated and pulverized, stirred, dried and incinerated (by low temperature combustion). Cooled filtration cyclone for cooling and separating the secondary fluidized-bed incinerator main body (8) with high-temperature combustion for incineration, oxidation and reduction of the used ash and carbon powder and toxic gases and dust generated during the combustion process. In the one consisting of a true base 13 and a fluidized bed activated carbon filtration device 14 and a filtration washing tower 15 for refining the gas, The primary stirring, drying and incinerator main body (3) by the low temperature combustion described above Screw compression to supply various mixed wastes to the incinerator hopper by compressing and dehydrating and supplying water-containing waste such as crushing and crushing device (1) installed in the hopper for crushing and crushing, and sludge and food waste combined with it. A dehydration apparatus (2) and a cyclone dust collector (4) for separating the agitated screw shaft (22) and screw blades (21) to help agitate, dry, and incinerate the input waste, and the gas and steam dust generated in the combustion process, Cooling water condenser (5), cooling pump (23) and condensate storage tank (20) for storing condensed water, gas transfer blower (K) and stirring screw shaft (hollow shaft) for storing condensate Stirring fluidized bed melting plasma characterized by consisting of a stirring shaft cooling blower (7) for cooling (22) and an agitator shaft driving motor (6) for stirring the rotating shaft of the stirring shaft and screw blades Incinerator system. Incomplete combustion gas and unburnt generated by the primary mixed-dry incinerator main body (3), which are mixed with each kind of mixed waste into the incinerator hopper, which are dehydrated and pulverized, stirred, dried, and incinerated (with low temperature combustion). The primary fluidized-bed incineration furnace body (8) is a high-temperature combustion furnace for incineration, oxidation, and reduction of recycled ash and carbon powder, and a cooling filtration cyclone main body for cooling and separating the harmful gases and dust generated in the combustion process. (13) and the fluidized bed activated carbon filtration device 14 and the filtration washing tower 15 for refining the gas, The high temperature incineration secondary fluid melting furnace body (8) is Secondary fluidized bed coke blast furnace combustion chamber (A) and slag collector (S) which separates slag and ash by incomplete combustion gas generated during the first low temperature incineration and carbon and ash inflow and second reburn. ) And the flue (25) and stepped grate (M) where the fluidized bed medium and the dust gas circulate while keeping the temperature inside the secondary fluidized bed coke blast furnace combustion chamber (A) and the hot combustion chamber fluidized bed coke blast furnace Tertiary acetylene torch infrared combustion chamber (B) which removes harmful gases by oxidizing, reducing and decomposing harmful gases and dusts burned at a higher temperature at a higher temperature, and an oxygen-free power supply unit that reprocesses the harmful gases generated at this high temperature (11). ) And the cooling tank (12), the steam pressure safety valve (R), and the completely burned incinerator with the appropriate amount of water and discharged out of the cone type by controlling the heat in the torch combustion chamber (C) and the combustion chamber (C). The incineration ash compression discharge screw (19) is composed of a stirred fluidized bed molten plasma incinerator system, characterized in that the high temperature combustion. Incomplete combustion gas and unburnt generated by the primary mixed-dry incinerator main body (3), which are mixed with each kind of mixed waste into the incinerator hopper, which are dehydrated and pulverized, stirred, dried, and incinerated (with low temperature combustion). Cold-filtered cyclone main body that cools and separates the secondary fluidized bed molten incinerator main body (8) and the toxic gases and dusts generated in the combustion process by high temperature combustion that induces re-burning, oxidizing and reducing the recovered ash and carbon powder. (13) and the fluidized bed activated carbon filtration device 14 and the filtration washing tower 15 for refining the gas, The cooling filtration cyclone dust collecting base 13 is A device that cools and separates gas and dust discharged at high temperature after combustion, and re-collects the porous wire mesh (G) and the dropped ash to separate the falling ash from the heat exchange cooling water pipe (F) installed on the inner wall of the dust collector. Air-cooled heat exchanger pipe (E) installed in the opening / closing passage (V) connected to the tub, the central projection end of the secondary cooling chamber, and the coolant radiator heat exchanger (T) in the secondary cooling chamber installed to recool the primary cooled gas. And a dust filter (N) that removes dust and passes only clean gas, an oscillator (D) that shakes off the dust of the filter, an air spray nozzle (S) that mixes gas and fresh air, and a ring blower that supplies air thereto. (10) agitated fluidized bed molten plasma incinerator system, characterized by cooling, filtration and separation of hot gas and dust Injecting each mixed waste into the incinerator hopper, followed by dehydration and grinding, followed by primary stirring, drying, and incineration of the incinerator main body (3) and incomplete combustion gas generated therein, Cooling filtration cyclone that cools and separates the secondary fluidized bed molten incinerator main body (8) and toxic gases and dusts generated during the combustion process by the high temperature combustion in which the unburned ash and carbon powders are introduced, burned, oxidized and reduced. In the one consisting of a true base 13 and a fluidized bed activated carbon filtration device 14 and a filtration washing tower 15 for refining the gas, The fluidized bed activated carbon filtration device (14) and the filtration washing tower (15) are activated carbon flow protection nets (24), manned blowers (18), and cooling water storage tanks that allow activated carbon to flow through a device for refining gas. 17) and a cooling water circulation pump (16) and the like, agitated fluidized bed melting plasma incinerator system, characterized in that the exhaust gas refining process.

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