KR100317003B1 - The multi-story typed coal,oil,and gas fired boiler device - Google Patents

Abstract

The present invention relates to a multi-layer coal, oil, gas combined boiler device.

Conventional boilers are composed of a single layer, and as a result of incomplete combustion due to lack of air, hot combustion gas generated from a combustion chamber is discharged in a state in which water is not sufficiently heated, and thus the thermal efficiency is deteriorated.

Therefore, the present invention comprises a stack of several heat exchangers in a zigzag structure on top of a heat exchanger of a boiler having water pipes 40a and 40b and a water pipe with a corrugated tube interposed therebetween. Auxiliary combustion chamber which communicates water and sewage chambers 40a and 40b so that water can flow between them, and burns coal, oil or gas at the connection part of the heat exchanger (1) (2) (3). (4) and (5), inside which a circulation pipe for distributing water between the heat exchanger (1) (2) and (3) is piped, and the dry steam chamber ( 50) and the steam supply device and exhaust gas purification device are installed.

According to the present invention, the boiler has a multilayer structure and a combustion device is installed at each connection portion to allow the combustion gas to pass through the long pipe to heat the water, and to improve the combustion efficiency and thermal efficiency by supplying intermediate fuel and air. Complete combustion of combustion gases, desulfurization and carbon dioxide removal equipment has the effect that no pollutants are released.

Description

The multi-story typed coal, oil, and gas fired boiler device

The present invention is to form a boiler in a multi-layer to improve the thermal efficiency and increase the combustion efficiency to completely discharge the pollutants, and discharge the pollutants by passing the exhaust gas through a desulfurization device and carbon dioxide (CO ₂ ) removal device at all The present invention relates to a multi-layer coal, oil, and gas combined boiler device.

In general, a boiler burns fuel and converts its thermal energy into steam energy to obtain power. The utility model registration application No. 22155 (1997.8.14) in 1997 and 1998 patent application No. 12010 ( March 30, 1998).

Pre-boiled boiler structure has a combustion chamber at the lower part and a device for supplying fuel to the combustion chamber at the front side, and the upper and the sewage chambers are connected to the upper part of the combustion chamber by a plurality of water pipes with a built-in corolla. A device having a water circulation pipe and a rooster water pipe connected to each other to facilitate convection circulation of water, and having a dry steam pipe in which a dry steam pipe is piped in the upper part, and a device for collecting steam passing through the dry steam chamber and supplying it to a turbine. Consists of a support device for rotatably supporting the boiler consisting of.

However, since the coal-fired boilers are individually distributed and installed, there is a possibility that they may be damaged because they cannot handle the steam and water pressures.

Therefore, in order to support the water pipes more firmly, the water pipes are tightly coupled to each other and the upper and lower ends penetrate through the water chambers and secured to the upper and lower walls of the water so that the structure is secured by the application No. PCT / KR99 / 00307. There is a bar.

However, since the boiler is composed of a single layer, the high temperature combustion gas generated from the combustion chamber is discharged without sufficient water heating and incomplete combustion due to lack of air has a disadvantage in that the thermal efficiency is lowered.

The present invention is to solve the above-mentioned disadvantages, the present invention is composed of a multi-layer boiler and the combustion apparatus is installed in each connection portion to improve the combustion efficiency and thermal efficiency by heating the water by passing the combustion gas through the longer corolla. At the same time, through the complete combustion of the combustion gas, desulfurizer and carbon dioxide removal device to provide a boiler that is not emitted at all.

1 is a longitudinal cross-sectional view of the present invention;

2 is a cross-sectional view taken along line A-A of the present invention;

3 is a cross-sectional view taken along line B-B of the present invention;

4 is an enlarged cross-sectional view taken along line C-C of the present invention;

5 is a side view of the cleaning rod and the cleaning plate according to the invention,

6 is a plan view of the purification device according to the present invention,

7 is a structural diagram of a fine dust removing device according to the present invention,

8 is a plan cross-sectional view of the accommodation filter device according to the present invention;

9 is a side cross-sectional view of FIG. 8;

10 is a longitudinal cross-sectional view of FIG. 8.

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

1,2,3-1st, 2nd, 3rd heat exchanger 4,5-1st, 2nd auxiliary combustion chamber 6-Blower

7a, 7b-Burner 8-Oxygen injector 10-Fuel injection device

11a, 11b, 11C-Input Hopper 12a, 12b, 12c-Screw 13a, 13b-Opening and closing damper

14-Limestone Drain 15-Opening and Closing 16-Rack Gear

17-Pinion 18a, 18b, 18c-Inlet 20-Combustion chamber

22-Bottom plate 26-Air compressor chamber 27-Support plate

28-Hydraulic cylinder 29-Horizontal frame 30-Cleaning rod

31-Cleaning plate 32-Discharge switch 33-Support roller

34-Discharge screw 35-Backrest 40a, 40b-Upper and lower chamber

41a, 41b-Water pipe 42-Corolla 421-Water hole

43-steam tank 44-circulating water collection pipe 45-water circulation pipe

46-Connecting circulation pipe 47-Insulating wall 48-Endothermic pipe

49-Rooster Water Pipe 50-Dry Room 51-Dry Room

52-Steam collection pipe 55-Steam transport pipe 57-Exhaust pipe

70-Secondary Cyclone 71-Central Exhaust Vessel 80-Cooling Water System

82-Electrostatic Precipitator 83-Tertiary Cyclone 831-Blower

832-Sintered lime hopper 84-Bag filter 85,86-Gas passage

87-Damper 88-Bag Screen 89-Weight

891-Outlet 892-Valve 893-Head

894-Chamber 895-Transfer screw 90-Filtering device

91-Partition plate 92-Pressure hole 93-Vertical wall plate

94-Water Tanks 95-Underwater Gas Channels 96-Blocking Plates

97a, 97b, 97c-Gas chamber 972-Exhaust 972-Outlet

98a, 98b, 98c-Pressure Tube 99a, 99b, 99c-Blower 100-Frame

110a, 110b-dust collector 111a, 111b-distribution pipe 120-slaked lime input device

121-Slaked lime silo 122-Screws

In order to achieve the above object, the present invention has a combustion chamber at the lower part and supplies fuel to the combustion chamber at the front side, and has an upper and a sewage chamber connected to a plurality of water pipes with a corolla at the upper part of the combustion chamber to facilitate convection circulation. A heat exchanger consisting of a water circulation pipe and an auxiliary circulation pipe, a dry steaming room in which a drying steam pipe is piped into the upper part of the heat exchanger, and a steam supplying device for collecting steam passing through the dry steaming chamber and supplying it to a turbine; A boiler comprising: an exhaust gas purifier installed at a gas purifying exhaust gas, and a supporting device for rotatably supporting a boiler made of such devices,

A plurality of heat exchangers are stacked in a zigzag stack on top of the heat exchanger of the boiler, the water and sewage chamber communicates with each other so that water can flow between the heat exchangers, and an auxiliary combustion chamber having a gas burner is connected to the connection of the heat exchanger. The inside is piped with a circulation pipe for distributing water between the upper and lower heat exchangers, and is achieved by installing the dry steam chamber, the steam supply device and the exhaust gas purifying device on the upper part of the upper heat exchanger.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing the structure of a boiler according to the present invention, Figure 2 is a cross-sectional view taken along the line A-A of the present invention, Figure 3 is a cross-sectional view taken along the line B-B of the present invention, Figure 4 is an enlarged cross-sectional view of the C-C line of the present invention.

As shown in the figure, two second and third heat exchangers 2 and 3 are stacked in a zigzag structure on top of the first heat exchanger 1 having a combustion chamber at a lower portion thereof. (3) a dry steam room in which the dry steam engine 51 is piped inside, a steam supply device for collecting steam supplied through the dry steam chamber and supplying it to the turbine, and an exhaust pipe installed in the exhaust pipe 57 to purify exhaust gas. A gas purification device is installed, and a support device for stably supporting such a boiler is installed.

The first, second, and third heat exchanger devices have a structure in which double water pipes 41a and 41b having a corrugated pipe 42 between the upper and the sewage chambers 40a and 40b are connected to each other. The water pipes 41a and 41b connecting the upper and lower water chambers 40a and 40b of each heat exchanger 1, 2, and 3 are to pass through the upper and lower ends of some water pipes 41b. After extending and fixed to the outer wall surface, the water through hole 421 is formed so as to communicate with the water chamber (40a, 40b) inserted into the interior of the water chamber (40a, 40b), the upper and lower ends of the corolla 42 therein Silver penetrates the upper and lower chambers 40a and 40b, and the lower end is in communication with the combustion chamber 20 or the first and second auxiliary combustion chambers 4 and 5, and the upper part of the corolla 42 of the third heat exchange device 3 Is communicated with the dry steam chamber 50. [The internal structure of the first, second and third heat exchange devices is the same, and the same reference numerals are used.]

In addition, a circulating water collection pipe 44 is provided on the entire surface of the combustion chamber 20 of the first heat exchange device 1. The water circulation pipe 45 is installed between the steam tank 43 and the circulating water collection pipe 44 installed at the front of the upper and the sewage chambers 40a and 40b and the front upper part of the third heat exchange device 3. In particular, the water pipes (41a) (41b) are piped in close contact with each other and the filling material of the material that can bind to each other, such as concrete, is filled between each of the water pipes (41a) (41b). In addition, there are a large number of corollas 42 passing through each of the water pipes 41a and 41b and maintained at a constant interval by spacers (not shown) provided in the water pipes 41a and 41b. In addition, a plurality of endothermic pipes 48 are bypassed in the horizontal and vertical directions on the bottom surface of the sewage chamber 40b.

A fuel input device 10 for injecting fuel into the combustion chamber 20 is installed on the front of the first heat exchange device 1, and the fuel input device 10 is connected to the combustion chamber 20 and uniformly distributes the fuel therein. There are provided front and rear feed hoppers 11a and 11b incorporating screws 12a and 12b for supplying and opening and closing dampers 13a and 13b for adjusting the fuel input amount as necessary. The front input hopper 11a is for limestone input and the rear input hopper 11b is for coal (got coal or coal dust) input, and a limestone drop port 14 is formed under the front input hopper 11a. And the lower part of the limestone drop opening 14 is provided with an opening and closing plate 15 for opening and closing the drop opening and the opening and closing plate 15 is a rack gear 16 is installed, if necessary, a separate drive device (not shown in the drawing). Automatic opening and closing by the pinion 17 which is rotated by the "

The combustion chamber 20 has an air compression chamber 26 below the combustion chamber 20. In the combustion chamber 20, several rooster water pipes 49 are arranged in parallel at regular intervals (interval enough to pass fuel (got coal) and filter out limestone), and the tip ends the inlet 14a up and down. After being bent to cross, it is connected to the lower portion of the circulating water collection pipe 44 or the sewage chamber 40b, and the rear end is inclined to be installed to communicate with the rear side of the sewage chamber 40b.

Support plates 27 are installed at both lower sides of the bottom plate 22 of the combustion chamber 20, and hydraulic cylinders 28 are installed at each support plate 27, and a rooster water pipe 49 is disposed at the rod end of the hydraulic cylinder 28. The horizontal frame 29 is connected to support the cleaning rod 30, which is disposed at the gap interval of the support as shown in FIG. And the end of the cleaning rod (30) is provided with a cleaning plate 31 is inserted into the gap of the rooster water pipe (49) to move the coal briquettes to the rear side, the discharge opening and closing plate on the rear side of the corresponding roster water pipe (49) (32) is rotatably hinged, and a support roller 33 is provided at the lower portion of the cleaning rod 30 to smoothly maintain the forward and backward movements while supporting the load. And a lower back 35 is provided with a discharge screw 34 for discharging carbonaceous material in the lower portion of the discharge opening and closing plate (32). And although not shown in the figure, the side of the combustion chamber 20 is provided with a blower for pumping air into the inside, respectively.

Meanwhile, the first, second, and third heat exchange devices 1, 2, and 3 communicate with each other so that the water in the upper and the sewage chambers 40a and 40b flows, and the first and second auxiliary combustion chambers are connected to the connecting portion. (4) (5), and connecting circulation pipes (46) connecting the first, second and third heat exchangers (1), (2), (3) to the first and second auxiliary combustion chambers (4). (5) is piped into.

In the back of the second heat exchanger 2, an injection hopper 11c for introducing the powdered coal into the first auxiliary combustion chamber 4 is provided. A screw 12c for lowering the powdered coal is provided therein, and an inlet 18c connected to the upper portion of the first auxiliary combustion chamber 4 is formed at the lower end thereof. The first auxiliary combustion chamber 4 is provided with a blower 6 for supplying air and a burner 7a. Therefore, the first auxiliary combustion chamber 4 can be heated using powdered coal, gas, or petroleum.

A steam tank 43 is installed in front of the upper dry steam chamber 50 of the third heat exchange device 3, and a dry steam engine 51 connected to the steam tank 43 is bent a plurality of times inside the dry steam chamber 50. It is installed so as to be connected to the steam set pipe 52 installed in the upper rear side of the first heat exchange device (1) through the steam transfer pipe (55). At this time, the dry engine 51 passes through the first auxiliary combustion chamber 4.

The water circulation pipe 45 connected to the steam tank 43 is connected to the rooster water pipe 49 through the front of the combustion chamber 20 on the front surface of the third heat exchange device 3. In addition, the dry steam pipe 51 is bent several times in the dry steam chamber 50 and then connected to the steam collection pipe 52 through the first auxiliary combustion chamber 4 through the steam transport pipe 55, which is shown in the drawing. It is connected to the turbine which is not. At this time, the heat insulation wall 47 is installed outside the dry chamber to block heat lost to the outside.

In addition, a gas (LNG gas) burner 7b is provided in the second auxiliary combustion chamber 5. At this time, since the air passing through the combustion chamber 20 and the first auxiliary combustion chamber 4 is supplied to the second auxiliary combustion chamber 5, oxygen is insufficient to reduce the combustion action of the gas. Is installed.

In addition, the boiler support device is provided with support frames 100 connected vertically and horizontally around the boiler so as to sufficiently support the load of the boiler at the bottom of the rear surface of the first heat exchange device 1.

6 is a plan view of a purifying apparatus according to the present invention, FIG. 7 is a structural diagram of a fine dust removing apparatus according to the present invention, FIG. 8 is a plan sectional view of a receiving filter device according to the present invention, and FIG. 9 is a side of FIG. It is sectional drawing, and FIG. 10 is a longitudinal cross-sectional view of FIG.

The exhaust gas purification apparatus installed at the rear side of the dry steam chamber 50 is provided with an exhaust pipe 57 and two primary cyclones 110a and 110b provided at both sides thereof, and both primary cyclones 110a and 110b. ) Is connected to the secondary cyclone (70) and the secondary cyclone (70) and the exhaust cylinder (971) to filter and remove the exhaust gas collected and discharged at the same time to remove the ash and dust. Cooling water apparatus 80 for discharging the vehicle and cooling the temperature of the exhaust gas, an electrostatic precipitator 82 for filtering dust and heavy metals, etc., under the cooling water apparatus 80, and a third cyclone connected to the electrostatic precipitator 82 ( 83), the bag filter 84 connected to the tertiary cyclone 83 to filter out the fine dust to the bag screen 88, and the exhaust gas passing through the bag filter 84 to cool the carbon dioxide. A cooler to facilitate dissolution; An accommodating filter device 90 for dissolving carbon dioxide in the exhaust gas into water by passing the exhaust gas passing through the cooler through a multi-stage water gas transfer path 95, and a discharge pipe 972 of the accommodating filter device 90. It is installed in the lower portion is composed of a slaked lime input device 120 to supply the slaked lime to neutralize the calcium carbonate when discharging the dissolved water carbon dioxide.

The purifier of the present invention disperses the combustion gas flowing into the high pressure through the exhaust pipe 57 of the primary cyclone (110a) (110b) to reduce the pressure and remove the dust at the same time through the distribution pipe (111a) (111b) Supply to the secondary cyclone (70).

The secondary cyclone 70 has a central exhaust cylinder 71 vertically upwardly installed in the inner central portion, and the exhaust gas supplied from the upper side of the secondary cyclone 70 moves downward to be connected to the coolant device 80. It is to be exhausted, and the lower part is provided with a discharge device for collecting and discharging the ash separated by its own weight and inertia. At this time, a water jacket not shown in the figure is installed around the central exhaust cylinder 71, and the central exhaust cylinder 71 is connected to the cooling water device 80 and the electrostatic precipitator 82 again.

Inside the cooling water device 80, a gas discharge pipe (not shown in the drawing) for passing the exhaust gas in several ways is provided, and a water jacket (not shown in the drawing) is provided on the outside to fill the water to lower the temperature of the gas. The cooling water device 80 is for lowering the temperature of the exhaust gas introduced for smooth operation of the electrostatic precipitator 82.

The electrostatic precipitator 82 functions to collect particulate carbonaceous material, heavy metals attached thereto, and the like.

The tertiary cyclone 83 connected to the electrostatic precipitator 82 is provided with a slaked lime hopper 832 on one side, and a blower 831 for pumping the injected slaked lime is installed to turn the collected exhaust gas while the blower ( 831 to supply the hydrated lime of the hydrated lime hopper 832 inside to convert the sulfurous acid gas into calcium sulfite and then discharge it to the lower portion.

The bag filter 84 is provided with gas passages 85 and 86 having a bifurcated interior, and a damper 87 for changing a gas inflow path is provided at the front end thereof, and each gas passage 85 is provided. The lower portion of the 86 is provided with a bag-shaped screen 88 having minute gas holes. A weight 89 having a dust discharge hole 891 is provided below the bag-shaped screen 88, and an opening and closing valve 892 is provided in the dust discharge hole 891. The on / off valve 892 is a member having a smaller size than the dust discharge hole 891, and can be moved up and down, and an opening and closing head 893 for opening and closing the dust discharge hole 891 is integrally formed at the upper end thereof. The lower part of the dust discharge hole 891 is exposed to a predetermined length. In addition, a chamber 894 formed in the longitudinal direction is formed in the lower portion thereof, and a transfer screw 895 which is operated by a separate driving device is provided in the chamber 894. Reference numeral 841 denotes a case surrounding the dust remover 84.

The cooling device 896 for cooling the exhaust gas passing through the bag filter 84 is for lowering the carbon dioxide in the exhaust gas to a temperature that is easy to dissolve in water.

The accommodation filter device 90 partitions the partition plate 91 horizontally inside the wide rectangular cylinder so that the upper and lower chambers are provided, and the upper chamber allows the exhaust gas to be pumped, and the upper chamber has a water tank 94 filled with water. Is achieved. In addition, the vertical wall plate 93 is installed in parallel on the upper part of the partition plate 91 to form a plurality of gas pump pipes 98a, 98b and 98c, and each vertical wall plate 93 extends downward to underwater. Form a gas delivery path. In addition, a pressure feed hole 92 is formed in the lower partition plate 91 of each of the pressure feed pipes 98a, 98b, and 98c in the longitudinal direction.

In addition, by installing a blocking plate 96 across the vertical wall plate 93 on one side of each of the pressure pipes (98a, 98b, 98c) is independent of the pressure pipes (98a, 98b, 98c) and the water tank ( 94 and gas chambers 97a, 97b, and 97c, which communicate with each other and collect the pumped gas, respectively, and alternately install each of the pressure pipes 98a, 98b, and 98c so as to be symmetrical. Gas pressure blowers 99a, 99b and 99c are provided on the upper portions 98a, 98b and 98c. At this time, the uppermost blower blower 99a pumps the exhaust gas that has passed through the bag filter 84, and the other blower blowers 99b and 99c pressurize the gas chambers 97a and 97b at the center. The rear gas chamber 97c is connected to the chimney through the exhaust tube 971, and the water in the water tank 94 is discharged to the discharge pipe 972. At this time, the slaked lime input device 120 is installed in the lower portion of the discharge pipe 972 is to be mixed with the slaked lime inside. Reference numeral 122 is a screw for mixing slaked lime, and is a slaked lime silo 121.

The slaked lime injection device 120 is installed at the lower portion of the outlet 96 of the accommodation filter device 90 to supply the slaked lime when carbon dioxide is dissolved to neutralize the calcium carbonate.

Looking at the operation of the present invention having such a structure as follows.

Limestone is put in the front injection hopper 11a and lump coal or powdered coal is put in the rear injection hopper 11b, and the fuel is injected through the inlet 18a by operating the opening / closing damper 13 while rotating the screw 12b. Is introduced into the combustion chamber 20 through a gap of the rooster water pipe 49 crossing the inlet 18a up and down. When using oil or gas, when fuel is introduced, burner (not shown in the drawing) installed inside-separates the blower when using and replaces the burner in place-burns the fuel by ignition, and the air compressor chamber ( 26), the air is injected into the combustion chamber 20 and the air is supplied with sufficient secondary air so that the fuel is completely burned to a high temperature.

The high heat combustion heat generated during combustion passes through the corolla 42 to the first auxiliary combustion chamber 4 while heating the sewage chamber 40b of the first heat exchange device 1, and the combustion operation of the combustion chamber 20 is active. The more you exit, the faster you exit. At this time, the limestone does not fall down from the top of the rooster water pipe 49, but flows down from the inclined rooster water pipe 49 and is heated by the heat of the combustion chamber. When the limestone is sufficiently heated, the opening and closing plate 15 is operated to discharge it into the limestone dropping hole 14. This limestone is used to neutralize sulfur dioxide and carbon dioxide by spraying it and processing it into hydrated limestone.

In this process, water is rapidly heated by heating the sewage chamber 40b on the upper part of the combustion chamber 20 and heating the endothermic tube 48 and the rooster water tube 49 provided on the bottom surface in order to widen the contact area. In particular, the heat of combustion passing through the plurality of corollas 42 is faster, the faster the heat transfer becomes, which is effective to heat the water in the water pipes 41a and 41b quickly.

Combustion gas introduced into the first auxiliary combustion chamber (4) is introduced into the corolla of the second heat exchanger (2) after the combustion heat of powdered coal supplied from the input hopper (11c) is burned again by the gas or the oil burner (7). And heats the water in the water pipes 41a and 41b, burns again with the burner 6 in the second auxiliary combustion chamber 5, and then flows into the corolla 42 of the third heat exchanger 3 to flow into the water pipe 41a ( The water of 41b) is heated and then discharged into the dry steam chamber 50. The gas burned in the second auxiliary combustion chamber 5 is LNG (possibly petroleum or powdered coal), and is burned while supplying oxygen to the oxygen injector 8, so that the thermal efficiency due to complete combustion is increased.

When water is heated by this action, it vaporizes and enters the water supply chamber 40a through the narrow water pipes 41a and 41b. The steam is collected into the steam tank 43 and the water is collected through the circulating water pipe 45. Circulated to 40b.

The flame introduced into the dry steam chamber 50 is heated to the dry steam engine 51 by the residual heat, and then discharged to the exhaust pipe 57. The steam in the dry steam engine 51 passes through the steam transfer pipe 55 to the lower steam collection pipe ( 52). At this time, while passing through the first auxiliary combustion chamber (4) through the steam transfer pipe (55) is reheated and collected in the steam set pipe (52) and is supplied to the turbine not shown in the figure.

The operation of such a boiler, that is, the steam pressure discharged at a high pressure, acts as a tremendous pressure on the water pipes 41a and 41b and the fire pipe 42 of each fuel supply device. However, the water pipes 41a and 41b are mutually interviewed to support each other, and the fillings binding each other to the silos of the water pipes 41a and 41b bind to each other, so that the water pipes 41a and 41b are tightly coupled with even greater force. As a result, it can withstand heavy pressure despite its high pressure.

In addition, the fuel (got coal) burned in the combustion chamber 20 passes downward through the lower surface of the rooster water pipe 49, and the hydraulic cylinder 28 on the rear side pushes the horizontal frame 29, and the horizontal frame 29 has several The cleaning plate 31 installed at the end of the cleaning rod 30 is retracted by the gap of the rooster water pipe 49 to push the burnt down coal ash to the rear side, and discharged to the opening and closing plate 32 installed at the rear side. It is opened by the ashes and closed again by its own weight when the crushed ash falls. In addition, the discharged ash falls to the ash tray 35 and is transported by the discharge screw 34 is discharged to the outside.

When the lump coal is discharged, the lump coal which is burned naturally falls along the slope and is filled in place of the discharged lump coal.

The combustion gas discharged to the discharge pipe 57 through the dry steam chamber 50 flows into the primary cyclones 110a and 110b on both sides to filter water and simultaneously depressurize and filter out the remnants and dust. It flows into the secondary cyclone 70 through the distribution pipes 111a and 111b. The introduced combustion gas descends while turning again and is discharged upward through the central exhaust cylinder 71. At this time, the remnants having the weight as the direction changes are lowered and discharged to the lower side of the secondary cyclone 70, and then to the central exhaust cylinder 71. The discharged combustion gas flows into the cooling water device 80 and is cooled to a temperature suitable for the operation of the electrostatic precipitator 82. The cooled exhaust gas flows into the electrostatic precipitator 82 to collect particulates or heavy metals attached thereto.

Exhaust gas passing through the electrostatic precipitator 82 is blown by the blower 831 to the gas in the electrostatic precipitator 82, and the slaked lime of the masonry silo 832 is introduced into the third cyclone 83, and the dust is completely mixed while turning. The sulfurous acid in the gas is combined with the hydrated lime to form calcium sulfite and discharged to the lower end of the third cyclone 83, and the gas passed through the electrostatic precipitator 82 is supplied to the bag filter 84.

The exhaust gas supplied to the bag filter 84 flows into the gas passage 85 by the damper 87, and the bag-shaped screen 88 swells due to the gas pressure, and the lower weight 89 is raised. When the weight 89 rises, the on-off valve 892 in the dust discharge hole 891 is lowered by its own weight, and the opening / closing head 893 blocks the dust discharge hole 891.

In such a state, the damper 87 is closed within the set time to allow the exhaust gas to flow into the opposite gas passage 86. As the exhaust gas of the gas passage 85 in which the exhaust gas is blocked is discharged through the micro-holes of the bag screen 88, the fine dust is filtered out and the gas pressure drops, so that the bag screen 88 weighs the weight 89. To be drooped downward. The lower end of the opening / closing valve 892 exposed to the lower part of the dust discharge hole 891 while the weight 89 falls by its own weight is pushed upward by the bottom so that the opening / closing head 893 is opened from the dust discharge hole 891. do. At the same time, the drop impact of the weight 89 acts to burst the bag-shaped screen 88, so that the fine dusts filtered by the bag-shaped screen 88 are separated and dropped by its own weight. It is discharged to the outside through the formed dust discharge hole (891). After a certain time, the damper 87 is opened again to close the other gas passage 86 and the exhaust gas is introduced again, and then the operation described above is repeated.

This operation alternates in both gas passages 85 and 86 to filter out fine dust. In addition, the filtered dust is collected in the lower chamber 894 and the transfer screw 895 in the chamber 894 discharges them to the outside.

The exhaust gas passing through the bag filter 84 passes through the cooling device 896. While passing through the cooling device 896, the exhaust gas is cooled to a temperature at which carbon dioxide is easily dissolved in water.

In this state, the exhaust gas is supplied to the accommodation filter device 90. The supplied exhaust gas is pumped into the gas pump tube 98a by the blower 99a of the uppermost stage, and is injected into the water tank 94b through the pump hole 92 of the partition plate 91, and the injected gas is underwater The gas is transferred to the gas chamber 97a through the gas passage 95. In this process, unremoved dust is removed by water and carbon dioxide is dissolved in water. In addition, the exhaust gas transferred to the first gas chamber 97a is again pumped to the second pressure pipe 98b by the second blower 99b and the second underwater through the pressure hole 92 of the partition plate 91. The gas flow path 95 passes through the second gas chamber 97b. In addition, it is then pumped by the third blower (99c) to the third pressure pipe (98c) through the third water gas transfer path (95) through the pressure hole (92) is collected in the third gas chamber (97c) exhaust tube (971) Through the air to the atmosphere. The accommodation filter device 90 may extend the length until the carbon dioxide of the exhaust gas is completely dissolved in water.

Through this process, the fine dust that has not been filtered out is filtered and carbon dioxide is dissolved in water.

Through this process many times, carbon dioxide and dust are completely removed and released to the atmosphere.

In addition, water dissolved in carbon dioxide neutralizes carbon dioxide dissolved in water with calcium carbonate by the supplied slaked lime so as to pass through the slaked lime injecting device 120 when discharged into the discharge pipe 972. That is, the slaked lime and the discharged water of the slaked lime silo 121 are mixed evenly by the screw 122, the effect is enhanced and as a result effectively removes the pollutants.

As described above, since the exhaust gas passes through the aforementioned filtration processes, the toxic gas is completely neutralized, and thus the boiler of the present invention has an effect of reliably blocking pollutants.

As described above, the present invention consists of a multi-layered boiler and installs a combustion device at each connection portion so that the combustion gas passes through a long pipe and heats water, and improves combustion efficiency and thermal efficiency by supplying intermediate fuel and air. At the same time, there is an advantage of effectively blocking the emission of pollutants through the complete combustion of the combustion gas, the desulfurization unit and the carbon dioxide removal unit.

Claims (4)

A water circulation pipe and an auxiliary circulation pipe having a combustion chamber at the lower part and a fuel supplying unit to the combustion chamber at the front side, and an upper and a sewage chamber connected to a plurality of water pipes with a corrugated pipe at the upper part of the combustion chamber, to facilitate convection circulation. The heat exchanger is configured, the dry steam pipe which piped the dry steam engine into the upper part of the heat exchanger, a steam supply device which collects the steam passing through the dry steam chamber and supplies it to the turbine, and exhaust gas installed in the exhaust pipe to purify the exhaust gas. A boiler comprising a purifier and support devices for rotatably supporting a boiler made of such devices, A plurality of heat exchangers are stacked in a zigzag stack on top of the heat exchanger of the boiler, and the water and sewage chambers 40a and 40b communicate with each other to allow water to flow between the heat exchangers 1, 2, and 3, In addition, the first and second auxiliary combustion chambers 4 and 5 are formed at the connection portions of the heat exchangers 1, 2 and 3, and the water flows between the heat exchangers 1, 2 and 3 therein. The first auxiliary combustion chamber (4) is provided with a burner (7a) and a blower (6) for fueling coal, petroleum or gas, and an injection hopper for injecting powdered coal at the upper portion thereof. 11c), the second auxiliary combustion chamber 5 is provided with an oxygen injector 8 and a burner 7b for fueling coal, petroleum and gas, and the upper portion of the third heat exchanger 3 at the uppermost stage. Multi-layer coal, oil, gas combined boiler device characterized in that the dry steam chamber 50 and the steam supply device and the exhaust gas purification device is installed. 2. The primary cyclone (110a) according to claim 1, wherein the exhaust gas purifying apparatus is coupled to both sides of the exhaust pipes 57 of the third heat exchange apparatus 3 disposed at the top thereof to disperse the pressure of the exhaust gas and to remove various pollution dusts. With 110b: Secondary cyclones 70 connected to both sides of the primary cyclones 110a and 110b and the distribution pipes 111a and 111b to secondarily remove the pollution dust, A cooling water device (80) connected to the secondary cyclone (70) and the exhaust pipe (71) to cool the temperature of the exhaust gas; An electrostatic precipitator 82 connected to a lower portion of the cooling water device 80 to collect particulate heavy metals; A tertiary cyclone 83 connected to the electrostatic precipitator 82 to supply slaked lime through a blower 831 and a slaked lime hopper 832 installed at one side while turning the exhaust gas to convert sulfur dioxide into calcium sulfite; A bag filter (84) connected to the tertiary cyclone (83) to filter out fine dust and calcium sulfite from the exhaust gas by using a bag-shaped screen (88); A cooling device 896 for cooling the exhaust gas passing through the bag filter 84 to a temperature at which carbon dioxide is easily dissolved in water; An accommodation filter device 90 for dissolving carbon dioxide in the exhaust gas into water by passing the exhaust gas passing through the cooling device 896 through a multi-stage water pipe filter 91; Multi-layered coal, oil, characterized in that it is installed in the outlet 96 of the receiving filter device 90 is composed of a slaked lime input device 120 to supply the slaked lime to neutralize the calcium carbonate when discharging the water dissolved carbon dioxide Gas boilers. 3. The bag filter (84) according to claim 2, wherein the bag filter (84) has gas passages (85) and (86) divided into two parts, and a damper (87) for changing a gas inflow path at a predetermined time period is provided at a central portion of the front end thereof. In the lower part of each of the gas passages 85 and 86, a bag-shaped screen 88 having fine air holes and a weight 89 having a dust discharge hole 891 are provided below. The opening and closing valve 892 having the opening and closing head 893 at the upper end of the 891 is provided to be able to move up and down, and a chamber 894 formed in the longitudinal direction is formed at the lower part of the chamber. Multi-layer coal, oil, gas combined boiler device characterized in that the transfer screw (895) operated by the drive device is installed. The water filter device (100) of claim 2, wherein the accommodation filter device (90) comprises a water tank (94) filled with water by a partition plate (91) having a plurality of gas pressure holes (92). In addition, the vertical wall plate 93 is provided along the pressure hole 92 in the upper part of the partition plate 91 to form a plurality of parallel gas pressure pipes 98a, 98b and 98c and each vertical wall plate. (93) extends downward to form an underwater gas transfer path, and a barrier plate (96) crossing the vertical wall plate (93) is installed so that the pressure pipes (98a), (98b), and (98c) are symmetrical. Gas chambers 97a, 97b and 97c, which are independent of the pipes 98a, 98b and 98c and in communication with the water tank 94, collect the pumped gas, respectively, and each of the pressure pipes 98a and 98b. In the upper part of the tip 98c, gas blowing blowers 99a, 99b and 99c are installed, but the uppermost blower blower 99a pumps the exhaust gas passing through the bag filter 84, Blower blower for each (99 b) 99c pressurizes the gas in the fine dust collector 84 and the gas chambers 97a and 97b, and connects the exhaust cylinder 971 so that the gas chamber 97c at the rear side can be discharged to the outside. Multi-layered coal, oil, gas combined boiler device, characterized in that the water in the water tank (94) is calcium carbonate by mixing the slaked lime through the slaked lime injection device 120 when draining.