KR19990062032A - Coal boiler - Google Patents

Abstract

The present invention provides a sufficient air supply and lower blown air to the coal falling in the combustion efficiency enhancement method in order to remove the conventional waste end accompanied with pollution, and each corrugated in a plurality of water pipes to enhance the neutralization function It is designed to rapidly heat a small amount of water in the water pipe by the high pressure flame in the pipe, and adds a desulfurization device that burns lime powder to the exhaust gas from the exhaust dust collector and re-burns it with a burner for desulfurization of the exhaust gas. It is a pollution-free coal boiler with a high combustion efficiency, a strong steam generation function, and excellent desulfurization and absorption and removal of toxic gases. It was made.

Description

Pollution-free coal boiler

1 is a perspective view of the boiler of the present invention.

2 is a cross-sectional view taken along the line AA ′ of FIG. 1.

3 is a cross-sectional view taken along the line B-B 'of FIG.

4 is a cross-sectional view taken along the line CC ′ of FIG. 2.

5 is an enlarged cross-sectional view taken along the line D-D 'of FIG.

Figure 6 is an enlarged longitudinal sectional view of the desulfurization apparatus of the present invention boiler.

7 is a cross-sectional view taken along the line E-E 'of FIG.

* Explanation of symbols for main parts of the drawings

1: fuselage 1 ', 1: frame

1 ': support plate 2, 2': bracket

3, 3 ': pedestal 4, 4': pin

4, 4 ': hydraulic cylinder 5: left hand chamber

5, 5 ': boiling water circulation pipe 6: rain room

7: water pipe 7 ', 7: hot water circulation pipe

8: combustion chamber 8 ': carbon ash automatic outlet

9: corolla 10: dry chamber

10 ': Residual recovery pipe 10: Steam transfer pipe

10 ': steam exhaust pipe 11: C embroidery pipe

12: rear wall 13: air compression chamber

14 support plate 15 refractory brick

16: air vent 17: rostol

17 ': Jang 18: Sojebong

18 ': Horizontal side 18: Horizontal side

19, 19 ': hydraulic cylinder 20, 21: blower

22: underground passage 23: coal inlet

24, 24 ': screw 25: opening and closing tube

26: downward passage 27: limestone inlet

28: downward path 29: van

30: limestone falls 31: steam tank

32: dry organ 34: exhaust pipe

35: dust collector 36: exhaust box

36 ': Downward part 36: Wotazakel

36 ': drain hole 36: drain hole

37: blower 37 ': burner

37: tip 37 ': lime inlet

38: desulfurization apparatus 39: burner

40: electrostatic precipitator 41: bag filter

42: First Alliance Aquarium 43: Second Alliance Vertical Hall

44: third vertical plumb pipe 45: discharge pipe

46: high pressure pump 47, 47 ', 47: injection hole

49: water tank 50: gas absorption device

[Purpose of invention]

The present invention is to obtain a pollution-free coal boiler having excellent combustion power and vaporization function, and equipped with a perfect desulfurization device and a gas absorption device without pollution to exhaust gas.

[Technical field to which the invention belongs and the prior art in that field]

Coal boilers that are widely used include PCB type, BFBC type, CFBC type, etc., but these are tubing types that allow water to pass through the tube in the firebox, so the tubes are arranged only on the inner surface of the fuselage. Many of these tubs are arranged in a line around the firebox, resulting in poor steam generation, and even in the combustion chamber, the combustion efficiency cannot be improved even with the addition of supporting means such as oil injection, lime injection, and heated sand injection. Toxic gases such as carbon monoxide, carbon dioxide, and heavy metals are emitted in large quantities.

[Problem to Invent]

The present invention provides a high performance combustion environment in the combustion chamber in order to remove the conventional closed end as described above to reduce the incidence of carbon monoxide and install a number of pipes closely in the fuselage, and through the corollas through the water pipe to double the steaming function, The desulfurization unit is to provide a high-performance desulfurization function to remove the waste end that emits sulfurous acid gas, carbon dioxide and other toxic gases to form a pollution-free coal boiler.

[Configuration and Function of Invention]

[Configuration]

In constructing the boiler of the present invention, a plurality of double pipes passing through the corrugated pipe into the water pipe are arranged in the fuselage closely, and coal is dropped from the upper side to hit the ramp on the rear side, and the compressed air is injected into the numerous air holes of the ramp, Compressed air is injected from the lower side to make coal burn almost completely, and the exhaust gas is passed through the desulfurization unit to enhance the desulfurization effect and then passed through the toxic gas absorber to form a pollution-free coal boiler that completely removes the toxic gas.

That is, the lower surface of the fuselage 1 of the boiler is installed on the upper surface of the premium 1 '1 of the same length and integrated, and the left and right brackets 2, 2' of the lower surface of the boiler body 3, 3 '(4') is installed in the upper end of '), and the hydraulic cylinder (4) (4') for adjusting the inclination angle of the body (1) is installed as shown in Figs. You can also use to lock your posture.

On the left and right ends of the fuselage 1, left and right water compartments 5 and 6 are installed, and a large number of water pipes 7 communicated between the left and right water compartments 5 and 6 are closely installed, The corollas 9 opened in the combustion chamber 8 pass through the left water chamber 5, respectively, through the water pipe 7, and again through the rainwater chamber 6 and open in the dry steam chamber 10 on the right side thereof. The material recovery pipe 10 'installed at the lower end of the steam chamber 10 was opened to the lower side of the combustion chamber 8, the lower end of the C-shaped water pipe 11 was opened to the left water chamber 5, and the body was in the combustion chamber 8 Extends upward from the upper end to communicate with the left hand chamber 5 to promote the steam generating action, and the carbon material automatic outlet 8 'is installed at the lower end of the combustion chamber 8, and the rear wall 12 of the combustion chamber 8 is In the air compression chamber 13, the fire bricks 15 are stacked in a plurality of layers as shown in FIGS. 2 and 5 between several supporting plates 14 in the air compression chamber 13 to form the ventilation holes 16. Between the plate 14 and the refractory brick is bonded with refractory cement and constructed as shown in Fig. 5, the limestone receiving porous plate 16 'is installed on the upper side thereof, and the hollow part thereof is connected to the left hand chamber 5 to withstand the heat of fire. At the same time, it was configured in addition to the steaming action, and the several cleaning rods 18, which were formed by inserting the lower stole 17 into the vertically drilled long hole 17 ', fixed the lower end to the horizontal gap 18'. These were fixed to the transverse 18 and advanced horizontally as the left and right hydraulic cylinders 19 (19 ') so that the carbonaceous material was intermittently drawn down.

The blower 20 presses air into the air compression chamber 13 and the blower 21 injects air upward from the lower surface of the combustion chamber 8 through the underground passage 22.

The coal injected into the coal inlet 23 is equalized by the screw 24 and is controlled by the opening and closing plate 25 and flows into the downcoming passage 26 to fall into the combustion chamber 8. The fine powder falls in front and the slightly larger urine is rolled out. It comes back and falls evenly.

The limestones injected into the limestone inlet 27 were heated by the preheating of the boiler in the passage 28 so that the bladed tea 29 rolled down and dropped to the dropping hole 30 so as to spray water from below to obtain the powdered lime.

The hot water circulation pipe (7) communicating the left and right water chambers (5) and (6) of the body (1) causes the hot water between the left and right water chambers (5) and (6) to circulate, and the steam tank ( 31) installed and connected to the dry steam engine 32 is bent in the S-shape in the dry steam chamber (10) to install the steam transport pipe 10 at its lower end and extend it to the front outside to rush to the upper end of the combustion chamber (8) Extends horizontally to protrude and open the front end ejection outlet 10 'outwardly, and communicates the outer end of the heat exhaust pipe 34 collected in the dry steam 10 in the rear wall of the dust collector 35, The exhaust cylinder 36 is installed at the lower end thereof, and the lower end thereof is extended deeply downward, and the blower tube 37 'of the blower 37 is pushed into the lower end of the dust collector 35 so that the upper end 37 which is curved upward is lowered at the lower end of the exhaust cylinder 36. Approaching the air inlet, and the blower pipe 37 'is provided with lime as a lime inlet 37' and a burner 39 is installed in front of it. The desulfurization device 38 is installed at the lower end of the exhaust cylinder 36 with the nozzle 39 ', and the upper end of the exhaust cylinder 36 is curved to the side and the downward portion 36' is extended downward. An electrostatic precipitator 40 and a bag filter 41 were communicated to the first vertical plumb pipe 42 at a lower end thereof, and the exhaust cylinder 36 extending from the upper end of the precipitator 35 to the lower portion 36 was a water jackel ( 36) the cooling water was cooled to distribute water from the lower inlet 36 to the upper outlet 36 '.

An upper end of the first plumb vertical pipe 42 communicates with an upper end of the second plumb vertical pipe 43, and a lower end thereof communicates with a lower end of the third plumb vertical pipe 44. Discharge pipe 45 was installed at the upper end, and the lime water pressure pipes branched into three strands from the high pressure pump 46 at the upper end thereof were inserted into the upper ends of the vertical pipes 42, 43 and 44, respectively, at the front end thereof. The nozzles 47, 47 'and 47 are installed and the upper ends of the vertical plumbing pipes are sealed to spray lime water (aqueous solution of lime) from the injection holes on the upper side of the vertical plumbing pipes. By installing a water tank 49 injecting water so that the lower end is slightly submerged in water, a gas absorbing device 50 in which calcium carbonate is precipitated is installed.

[Action]

When the boiler of the present invention is operated, the fine powder of coal dropped from the coal drop passage 26 drops to the front side, and the thick agglomerate is accelerated and dropped to the rear side so that they are inclined by the refractory bricks 15 inclined. It hits the surface and floats in the compressed air injected from the plurality of ventilation holes 16 and floats in the upper layer of the combustion chamber 8 to burn. At this time, the oxygen supply is sufficient and the combustion state is fierce and the exothermic action is strong. Because of the buoyancy of the air injected upward and the high pressure of the compressed air, the flame passes at high speed into the corolla (9). Therefore, the frictional heat in the corolla is generated and the corolla is heated in a small amount into the surrounding water (7). Since high temperature is rapidly applied to the existing water, an intense vaporization action occurs in which water vapor explodes, and high pressure steam is collected in the steam tank 31. In the process of passing through the engine 32, the high-pressure dry steam, which has been dried again in the high temperature dry steam chamber 10, gathers in the steam conveying tube 10, and is a fierce flame on the upper side of the rear combustion chamber 8 by the steam conveying tube 10. It passes through and acts to force the turbine through the high pressure increase steam discharge pipe (10 '). In this process, the hot water circulation tube circulates the hot water in the left and right water compartments 5 and 6 from the high temperature side to the low temperature side, and the hot water circulation tube 7 'and 7 in the fuselage also perform the hot water circulation operation. 11) also serves to enhance the steaming function of the boiler of the present invention in addition to the steaming action.

The remnants of the flame collected in the dry steam chamber 10 are recovered in the combustion chamber 8 by the remnant recovery pipe 10 'and reburn the unburned coal powder, and the heat is passed to the dust collector 35 through the exhaust pipe 34. It enters and wraps around the exhaust pipe 36 in the center and descends and is discharged to the lower opening. At this time, the lime powder is blown into the lower part of the blower pipe 37 'and the flame of the burner 39 is at the same time. And unburned coal powder, sulfur powder, and the like, to cause a predetermined reaction, which indicates a strong desulfurization action of the desulfurization apparatus 38, and the desulfurized gas is discharged through the exhaust pipe 36 to the electrostatic precipitator 40 and the bag filter. In the process of passing through (41), the particulates of carbonaceous material, heavy metals, etc. are removed, and again, the water is baptized by lime water in the process of passing through the vertical pipes 42, 43 and 44, and carbon dioxide is dissolved in water. This Air was coupled with calcium ion to be a calcium carbonate.

The gas body discharged in this way is a remarkable action of the gas absorber 50 to discharge the pollution-free gas. In other words, in the combustion process, the combustion condition is passed through the fire tube (9) into the water pipe (7) to enhance the vaporization function, and the desulfurization effect is satisfied in the desulfurization device (38), which is harmful to the gas absorber (50). It is a coal boiler that absorbs gas completely and discharges only pollution-free gas bodies.

[Effects of the Invention]

Coal falls on the upper side of the combustion chamber (8) to increase the combustion efficiency, such as air blowing, c-shaped water and installation, and to pass the corolla pipe (9) through the water pipe (7) to improve the steaming function to save coal consumption and vaporization It has the effect of reducing the time to improve the work efficiency, has the effect of extinguishing the sulfuric acid gas and carbon dioxide of the hemp by the action of the desulfurization device 38, and the effect of environmental purification by removing the gas absorber (50) It is effective in discovering a way to reintroduce cheap coal, which has been neglected in recent years due to pollution, as a valuable fuel.

Claims (3)

Water chambers (5) and (6) are installed at the left and right ends of the body (1), and the left ends of the plurality of water pipes (7) are closely connected to the left hand chamber (5) in the middle thereof, and their right ends are passed through the space to the right end ( 6, respectively, and the corollas 9 opened in the left combustion chamber 8 of the left hand chamber pass through the left hand chamber 5 and again through the rain chamber 6 and open in the right dry chamber 10 of the right chamber. The exhaust pipe 34 at the bottom of the dry steam chamber 10 is connected to the dust collector 35, and the steam tank 31 is installed at the upper end of the rain chamber, and the dry steam chamber 32 connected to the dry steam chamber 10 is connected to the dry steam chamber 10. Bend the inside through the S-shape and connected to the steam transport pipe 10 at the bottom thereof, the steam transport pipe 10 exits the outside and enters the upper layer of the combustion chamber 8 to pass through the flame discharge end pipe 10 'to the outside A pollution-free coal boiler characterized in that the turbine is pulled out to operate the turbine. The exhaust pipe (34) according to claim 1, wherein the exhaust pipe (34) communicates with the inner surface of the rear wall of the dust collector (35). The tip 37, which was bent upwardly, was approached to face the lower end of the exhaust pipe 36, and a lime inlet 37 'was installed in the blower pipe 37', and the pipe of the burner 39 was blown into the blower pipe 37 '. A pollution-free coal boiler characterized in that the desulfurization device (38) is installed by passing the inside through and facing the lower end of the exhaust pipe (36) with the nozzle (39 '). According to claim 1, wherein the exhaust pipe 36 is bent at the upper end of the dust collector 35 to install a water jacket 36 up to the lower portion (36 ') and the electrostatic precipitator 40 and the bag filter 41 at the lower end thereof. And communicate with the lower end of the first vertical plumb pipe 42, the upper end of which communicates with the upper end of the second vertical plumb pipe 43, and the lower end of which communicates with the lower end of the third vertical plumb pipe 44. Discharge pipes 45 were installed at the upper end thereof, and three pipes branched from the high pressure pump 46 at the upper end thereof were respectively inserted at the upper ends of the vertical plumbing pipes, respectively, and the injection holes 47, 47 'and 47 were respectively provided. And a gas absorber configured to seal the upper ends of the plumb vertical pipes and spray lime water to the injection holes 47, 47 'and 47, and to slightly immerse the opened lower ends of the plumb vertical pipes in the water tank 49. Pollution-free coal boiler characterized in that it is configured by installing (50).