CN104676888A - Energy-saving emission-reducing heating furnace - Google Patents
Energy-saving emission-reducing heating furnace Download PDFInfo
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- CN104676888A CN104676888A CN201510022832.8A CN201510022832A CN104676888A CN 104676888 A CN104676888 A CN 104676888A CN 201510022832 A CN201510022832 A CN 201510022832A CN 104676888 A CN104676888 A CN 104676888A
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Abstract
The invention discloses an energy-saving emission-reducing heating furnace comprising a shell. The shell is internally provided with a hearth. A grate is disposed within the hearth. The shell is provided with a smoke outlet communicated with a heat exchanger used for ventilation and heat dissipation. According to the technical scheme, four basic conditions for total combustion of the furnace, namely proper amount of combustibles, high temperature, reasonable combustion space and sufficient oxygen, are satisfied; the central temperature of the hearth is up to above 1200 DEG C; organic S is harmlessly converted; environmental pollution emission is effectively reduced; flue gas emission concentration is decreased to 27mg/Nm<3>; SO2 emission of the flue gas is decreased to 72mg/Nm<3> in concentration; NOX emission of the flue gas is decreased to 68mg/Nm<3> in concentration; heat exchange efficiency is over 95%; the service life of the furnace is longer than 10 years; fuels can be automatically charged as required.
Description
Technical field
The present invention relates to drying plant technical field, relate to specifically one can be used for agricultural product drying,
The energy-saving and emission-reduction heating furnace of bulk curing tobacco leaves and hot-water heating.
Background technology
The combustion process of common hot stove rests on layer combustion state mostly, technique is simple, structure is original, efficiency of combustion is low, four necessary requirements of burning completely can not organically combine, and imperfect combustion combustible and intermediate product thereof fail to carry out oxidation transformation thoroughly, cause coal to discharge from chimney thing of discharging fume in a large number after the burning of basis, not only cause energy dissipation, and cause environmental pollution.Wherein the flue gas of heating furnace discharge generates suspended particulates dust, nitrogen oxide NOx, SO
2, also generate a small amount of SO simultaneously
3, owing to containing moisture content in flue gas, the SO of generation
2, SO
3form sulfuric acid mist in moment, be discharged in air and form acid rain, cause environmental pollution.
Coal is as non-renewable resources, and cost rises steadily, and how effectively to reduce baking cost and reduces coaster for baking tobacco fume emission simultaneously, become the important topic of pendulum in face of us.
In addition, domesticly at present in flue-cured tobacco firing equipment and drying heating equipment, take the type of furnace as the leading factor mainly with vertical heater, make fuel with coal, mend wind combustion-supporting under air blast stove, the mode of stove layer combustion does not change, and efficiency of combustion is difficult to significantly improve.Stove efficiency of combustion is lower, and radiator heat exchange efficiency is low, and baking cost is higher.Meanwhile, because of tobacco flue-curing house and middle-size and small-size drying plant One's name is legion, the problem of the large pollution of small furnace is caused effectively not solved.
From heat exchange efficiency, the heat transfer free convection mode thermal efficiency is generally 40 ~ 50%; More advanced hot air circulation blower forced ventilation heat exchange mode, only increase circulating air heat exchange air quantity, the thermal efficiency also only has about 60%.This type of original circulating fan one direction following current heat exchange mode, because heat exchange efficiency is not high, part producer takes to strengthen radiator area mode, method is original and fall behind, not only waste raw material, add production cost, improve product price, and the increase rate of heat exchange efficiency is limited, in this type of firing equipment burner hearth, temperature 900 ~ 1000 DEG C does not change.
In addition, the organic sulfur in coal or plant only could generate nontoxic S through combustion oxidation being greater than under the hot conditions of more than 1200 DEG C
2o
3, the ignition temperature at existing firing equipment and flue-cured tobacco equipment burner hearth center only has 900 ~ 1000 DEG C, can not realize the innoxious transformation of organic S.
The current agricultural product drying stove promoted the use of, tobacco flue-curing stove and heating furnace, coal burning stove just adds combustion blower in the bottom of original stove, what have is also equipped with humiture self-con-tained unit, stove combustion intensity tool improves, but the structure of firing equipment, performance does not all have essence to improve, so it can not increase substantially the combustibility of stove, effectively can not reduce the C discharge in cinder and flue gas, can not effectively significantly improve firing equipment heat exchange efficiency, more can not realize the harmless treatment of the dustless discharge of flue gas and organic sulfur, it is many that firing equipment heat exchange efficiency improves bottlenecks, technical difficulty is large.
From the viewpoint of energy-saving and emission-reduction, agricultural product drying and tobacco flue-curing industry, through the baking waste heat heat exchange retracting device of test application, by setting up Installation of New Type fin high-performance heat exchanger, obtain first-stage success, but need increase heat exchanger and support expense thereof.
From the viewpoint of flue gas ash removal, the smoke pipeline of being used foreign currency by the exhaust opening of disjunctor barn had is concentrated, set up air-introduced machine each fire-stove fume to be focused on through recirculated water high-pressure atomization spraying and dedusting in gas wash tower, when the large acidity height of the dust degree of depth in recirculated water sedimentation basin, with in caustic soda and rear qualified discharge.This dedusting method because of construction cost high, difficulty is large, makes popularizing of this reduction of discharging dedusting method be subject to serious restriction; Firing equipment burner hearth central temperature only has 900 ~ 1000 DEG C.Soot emissions index distance China dust emission standard still has larger gap.
Therefore, with the development of urbanization, process of industrialization, domestic and international energy demand contradiction is deepened day by day, energy-saving and cost-reducing, low charcoal, to discharge without charcoal, fall work, subtract this, synergy brought up to the agenda that country and enterprise produce, coal as non-renewable resources, improve firing equipment efficiency of combustion and heat exchange efficiency significant, according to internal fuel feature, agricultural product drying equipment and the baking equipment for preparatory treatment of tobacco of optimizing novel, efficient, energy-saving and environmental protection are imperative.
Summary of the invention
The technical problem to be solved in the present invention is for the deficiencies in the prior art, there is provided a kind of heat exchange efficiency high, the innoxious transformation of organic S can be realized, long service life, effectively can reduce environmental contaminants discharge, there is the energy-saving and emission-reduction heating furnace of automatic filling fuel functional.
For solving the problem, the present invention by the following technical solutions: energy-saving and emission-reduction heating furnace, comprises furnace shell, and the inside of furnace shell is provided with burner hearth, establishes fire grate in burner hearth, and furnace shell offers outlet flue, outlet flue is communicated with the heat exchanger for ventilation heat exchange.
Below further improvement of the present invention:
The outside of furnace shell is provided with for the feeder to automatic filling fuel in fire grate.
Further improvement:
Described feeder comprises hopper, and hopper is connected with feed pipe, and described feed pipe is deep into furnace shell inside and is arranged on the top of fire grate, is provided with feeding auger in feed pipe.
Further improvement:
The below of described fire grate is provided with combustion-supporting airduct, and combustion-supporting airduct stretches out furnace shell and is externally connected to air blast.
Further improvement:
The position described feed pipe being positioned at furnace shell outside is provided with side air inlet, and the upper position in furnace shell outside of described combustion-supporting airduct is provided with side air-out mouth, is communicated with between side air inlet with side air-out mouth by communicating pipe.
Further improvement:
Fastening above described fire grate has resume combustion to encircle, and form combustion chamber between described resume combustion arch and fire grate, the position between described resume combustion arch and feed pipe is fixedly connected with the secondary combustion-supporting airduct for providing combustion air in combustion chamber.
Further improvement:
Described secondary combustion-supporting airduct offers the air holes of multiple even setting, the angle between secondary combustion-supporting airduct and horizontal plane is 45 °.
Further improvement:
Described heat exchanger comprises fire-box on fire-box on first time fire-box, first of connecting successively, second time fire-box, second, fire-box, second time fire-box and second are interconnected between fire-box described first time fire-box, first, described first time fire-box and second time fire-box are arranged in same level, on described first, on fire-box and second, fire-box is arranged on the top of first time fire-box and second time fire-box, fire-box with respect to the horizontal plane height setting straggly on fire-box and second on described first.
Further improvement:
Described the first fire tube be arranged side by side by four between fire-box and the outlet flue on furnace shell for first time is communicated with, and has gap between two adjacent first fire tubes, two adjacent first fire tubes distance consistent.
Further improvement:
Described first time fire-box is communicated with by three second fire tubes with between fire-box on first, second fire tube is arranged on the side of the first fire tube, between two adjacent second fire tubes, there is gap, two adjacent second fire tubes distance consistent, the second fire tube is arranged on the position between the first fire tube gap;
Be communicated with by the 3rd fire tube between fire-box with second time fire-box on described first, between two adjacent the 3rd fire tubes, there is gap, two adjacent the 3rd fire tubes distance consistent, the 3rd fire tube is arranged on the side of the second fire tube, and the 3rd fire tube and the second fire tube one_to_one corresponding are arranged;
Described second time fire-box is communicated with by two the 4th fire tubes with between fire-box on second, and the 4th fire tube is arranged on the side of the 3rd fire tube, and have gap between two the 4th fire tubes, the 4th fire tube is arranged on the position between the 3rd fire tube gap;
On described second, fire-box is connected with chimney.
The present invention adopts technique scheme, meet four primary conditions that stove burns completely simultaneously, namely appropriate combustible, higher temperature, reasonably combustion space, sufficient oxygen, burner hearth central temperature can reach more than 1200 DEG C, achieve the innoxious transformation of organic S, effective reduction environmental contaminants discharge, smoke dust discharge concentration is down to 27mg/Nm
3, SO in flue gas
2concentration of emission is down to 72mg/Nm
3, NO in flue gas
xconcentration of emission is down to 68 mg/Nm
3; Heat exchange efficiency can reach more than 95%; Service life can reach more than 10 years; Can automatic filling fuel as required.
Below in conjunction with accompanying drawing, technical scheme of the present invention is described further.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the embodiment of the present invention;
Accompanying drawing 2 be in accompanying drawing 1 A to structural representation;
Accompanying drawing 3 be in accompanying drawing 1 C-C to sectional view;
Accompanying drawing 4 be in accompanying drawing 2 B-B to sectional view;
Schematic diagram when accompanying drawing 5 is saving furnace of the present invention installation;
Schematic diagram when accompanying drawing 6 is saving furnace of the present invention installation.
In figure: 1-furnace shell; 101-burner hearth; 2-shoot door; 3-first time fire-box; 4-second time fire-box; Fire-box on 5-first; 6-first fire tube; 7-second fire tube; 8-the 3rd fire tube; 9-the 4th fire tube; 10-hopper; 11-fire grate; 12-resume combustion is encircleed; 13-air blast; The combustion-supporting airduct of 14-; 15-secondary combustion-supporting pipe; 151-air holes; 16-first tube connector; 17-gate valve; 18-side air-out mouth; 19-side air inlet; 20-feed pipe; 21-feeding auger; 22-motor; Fire-box on 23-second; 24-feeder; 25-blowing holes; 26-heat exchanger; 27-chimney; 28-communicating pipe; 29-cleaning door; 30-blast chamber; 31-combustion chamber; 32-plate; 33-heating clamber; 34-fan house; 35-blower fan; 36-cocycle air port; 37-drying chamber; 38-hydrofuge door; 39-body of wall; 40-air port.
Detailed description of the invention
Embodiment, as shown in Figure 1, Figure 2, Figure 3 shows, energy-saving and emission-reduction heating furnace, comprises furnace shell 1, and furnace shell 1 is the hollow box body adopting wallboard to surround, the inside of furnace shell 1 is provided with burner hearth 101, be provided with the fire grate 11 be obliquely installed in burner hearth 101, the outside of furnace shell 1 is provided with for the feeder 24 to fire grate 11 automatic filling fuel, and side relative with feeder 24 on furnace shell 1 is provided with shoot door 2, furnace shell 1 offers outlet flue, outlet flue is communicated with the heat exchanger 26 for ventilation heat exchange.
Described heat exchanger 26 to comprise on first time fire-box 3, first of connecting successively fire-box 23 on fire-box 5, second time fire-box 4, second, and fire-box 5, second time fire-box 4 and second is interconnected between fire-box 23 described first time fire-box 3, first.
Described first time fire-box 3 and second time fire-box 4 are arranged in same level, and on described first, on fire-box 5 and second, fire-box 23 is arranged on the top of first time fire-box 3 and second time fire-box 4.
Fire-box 23 with respect to the horizontal plane height setting straggly on fire-box 5 and second on described first.
On described first time fire-box 3, first, on fire-box 5, second time fire-box 4 and second, fire-box 23 is hollow, rectangular casing, on described first fire-box 5 end face distance second on the bottom surface of fire-box 4 be 80-100mm.
Described first time fire-box 3 is communicated with the first fire tube 6 be arranged side by side by four between the outlet flue on furnace shell 1, has gap between two adjacent first fire tubes 6, two adjacent first fire tubes 6 distance consistent.
Described first time fire-box 3 is communicated with by three second fire tubes 7 with between fire-box on first 5, second fire tube 7 is arranged on the side of the first fire tube 6, between two adjacent second fire tubes 7, there is gap, two adjacent second fire tubes 7 distance consistent, the second fire tube 7 is arranged on the position between the first fire tube 6 gap; Be communicated with by the 3rd fire tube 8 between fire-box 5 with second time fire-box 4 on described first, between two adjacent the 3rd fire tubes 8, there is gap, two adjacent the 3rd fire tubes 8 distance consistent, the 3rd fire tube 8 is arranged on the side of the second fire tube 7, and the 3rd fire tube 8 and the second fire tube 7 one_to_one corresponding are arranged; Described second time fire-box 4 is communicated with by two the 4th fire tubes 9 with between fire-box on second 23, and the 4th fire tube 9 is arranged on the side of the 3rd fire tube 8, has gap between two the 4th fire tubes 9, and the 4th fire tube 9 is arranged on the position between the 3rd fire tube 8 gap; On described second, fire-box 23 is connected with chimney 27.
One end of described first time fire-box 3 and second time fire-box 4 arranges cleaning door 29 respectively, and the volume of described first time fire-box 3 and second time fire-box 4 is all greater than the volume of fire-box 23 on fire-box on first 5 and second, facilitates deashing.
Gas in stove 1 enters the second fire tube 7 by the first fire tube 6, the 3rd fire tube 8, the 4th fire tube 9 are last
Discharge through chimney 27, add the circulation stroke of flue gas, heat exchange radiating efficiency, fire-box 5 on described first, fire-box 23 height setting straggly on second, first fire tube 6 enters the second fire tube 7, 3rd fire tube 8, the 4th fire tube 9 gap arrangement space increased between each fire tube be conducive to circulated air through each fire tube, reduce windage, improve the thermal efficiency of fire tube, simultaneously because the volume of first time fire-box 3 and second time fire-box 4 is all greater than the volume of fire-box 23 on fire-box on first 5 and second, thermal air current flow velocity when first time fire-box 3 and second time fire-box 4 slows down, dust remains in first time fire-box 3 and second time fire-box 4 due to self gravitation effect, prevent dust from staying in fire tube, cause windage, reduce heat exchange efficiency, heat exchange efficiency is made to reach more than 95%, can burn because temperature is too high or burn by anti-fire-stopping pipe simultaneously, improve service life, service life can reach more than 10 years.
Described feeder 24 comprises hopper 10, the side of hopper 10 is connected with feed pipe 20, the opposite side of hopper 10 is connected with motor 22, described feed pipe 20 is deep into furnace shell 1 inside and is arranged on the top of fire grate 12, feeding auger 21 is provided with in feed pipe 20, feeding auger 21 is connected with motor 22 through hopper 10, and put into coal 50-90 kilogram in hopper 10, the coal in hopper 10 is entered on the fire grate 11 of burner hearth 101 inside by feeding auger 21 turning effort automatically by feed pipe 20.
The below of described fire grate 11 is provided with combustion-supporting airduct 14, and combustion-supporting airduct 14 stretches out furnace shell 1 and is externally connected to air blast 13.
The position described feed pipe 20 being positioned at furnace shell 1 outside is provided with side air inlet 19, and the position described combustion-supporting airduct 14 being positioned at furnace shell 1 outside is provided with side air-out mouth 18, is communicated with between side air inlet 19 with side air-out mouth 18 by communicating pipe 28.Air in combustion-supporting airduct 14 enters in feed pipe 20 through side air-out mouth 18 and side air inlet 19, enhance the air pressure in feed pipe 20, while a small amount of auxiliary combustion air of supply, avoid air blast 13 combustion-supporting by combustion-supporting airduct 14 time be greater than external pressure because of pressure in burner hearth 102, in burner hearth 102, flue gas is excessive along feed pipe 20, there is hopper 10 smoke event, ensure that environmental sanitation, improve environment protecting.
Fasten above described fire grate 11 and have resume combustion to encircle 12, combustion chamber 31 is formed between described resume combustion arch 12 and fire grate 11, position between described resume combustion arch 12 and feed pipe 20 is fixedly connected with the secondary combustion-supporting airduct 15 for providing combustion air in combustion chamber 31, secondary combustion-supporting airduct 15 is fixedly connected with furnace shell 1, secondary combustion-supporting airduct 15 is communicated with combustion-supporting airduct 14 by the first tube connector 16, and described first tube connector 16 is provided with gate valve 17.
Described secondary combustion-supporting airduct 15 offers the air holes 151 of multiple even setting, angle between secondary combustion-supporting airduct 15 and horizontal plane is 45 °, also shutoff is tight in the end ironware welding of described secondary combustion-supporting pipe 15, the diameter of air holes 151 is 4-8mm, and the spacing between each air holes 151 is 50-30mm.
Air holes 151 evenly arranges and fuel gas can be made fully to contact with oxygen, sufficient combustion, angle between secondary combustion-supporting airduct 151 and horizontal plane is 45 °, stove fire tilts to press down by the secondary combustion-supporting wind that secondary combustion-supporting airduct 151 blows out, produce when making secondary combustion-supporting air and combustion-supporting airduct 14 combustion-supporting up in high-temperature combustible gas body fully mix, realize rotary combustion, enhanced burning intensity.
The large portion burning of the combustible in coal is made by the air blast of combustion-supporting airduct 14, again through secondary combustion-supporting pipe 15 to secondary air compensating supplementary burner in combustion chamber 31, secondary combustion-supporting pipe 15 sprays into fresh air in combustion chamber 31, realize secondary oxygenating synchronousing combustion, the combustible such as carbon powder and the CO realization completely of unburned in stove fire is burnt completely, thus reach the effect reducing and eliminate flue dust, make coal be become " suspension combustion " from " layer combustion " simultaneously, significantly improve combustion intensity, improve combustion chamber 31 combustion temperature, burner hearth central temperature can reach 1300 DEG C, meet organic S more than 1200 DEG C under hot conditions complete burning conversion be nontoxic neutral S
2o
3condition, reduce soot emissions, no matter use the coal feedstock of what type, naked-eye observation less than smoke evacuation thing, realize energy-conserving and environment-protective.
Combustion-supporting airduct 14 supplies simultaneously with secondary combustion-supporting pipe 15 or stops, when supplying simultaneously, because the air in secondary combustion-supporting pipe 15 is without the stop of fire grate 11, can enter in advance in combustion chamber 31, by fuel gas such as combustion oxygen, while enhanced burning intensity, effectively prevent deflagration phenomenon, ensure that security performance.
The arch cover plate that described resume combustion arch 12 is processed into by refractory material, the height of described resume combustion arch 12 is depending on burner hearth 102 volume size, the height of heating load 0.2-0.5 ton stove resume combustion arch 12 is about 35cm, height about the 65cm of heating load about 1.0 tons stove resume combustion arches 12, the stove fire after just combustion is gathered by resume combustion arch 12, improve flue gas concentration and the stove fire temperature after just firing in combustion chamber 31, not isometric combustion chamber can be created by the height of setting resume combustion arch 12.
Described fire grate 11 is the dustpan-shaped ironcasting little in large one end, one end, described fire grate 11 is cast by mold integral and is formed, the large end of fire grate 11 is towards shoot door 2 side, naturally fall for the lime-ash after burning, the small end of dustpan-shaped fire grate 11 is connected with feed pipe 20, the central authorities of described fire grate 11 are provided with several bar shaped blowing holes 25, the bottom of described fire grate 11 is provided with infundibulate blast chamber 30, the opening of infundibulate blast chamber 30 near fire grate 11 one end is greater than the opening of the other end, the big opening end of blast chamber 30 is connected with the sealed bottom of fire grate 11, several bar shaped blowing holes 25 are arranged in the big opening end of infundibulate blast chamber 30.Infundibulate blast chamber 30 is conducive to gathering the combustion air that combustion-supporting airduct 14 provides, and improves combustion intensity.The osculum end of blast chamber 30 slidably connects plate 32, and the osculum end of blast chamber 30 can be closed or open by slip plate 32, the osculum end opening blast chamber 30 can remove the dust in blast chamber 30.
During use, agricultural product drying and bulk curing tobacco leaves all adopt hothouse baking, this saving furnace is placed in the heating clamber of barn, hopper 10, the cleaning door of shoot door 2 and first time fire-box 3 and second time fire-box 4 is arranged on the outside of heating clamber, agricultural product to be baked or tobacco leaf are placed in drying chamber, ARC-II type automatic controller is installed in the outside of heating clamber, automatic controller access 220V power supply, described automatic controller connects Temperature Humidity Sensor, described Temperature Humidity Sensor is arranged in drying chamber, for detecting the temperature in barn in real time, humidity, motor 22 and air blast 13 control to be electrically connected with automatic controller respectively, and controlled by automatic controller.
When needs are heated, automatic control device controls air blast 13 and automatically runs, combustion-supporting airduct 14 carries out the burning of oxygen supply first, stove fire goes upward to fire grate 11 and encircles in 12 combustion chambers formed 31 with resume combustion, secondary combustion-supporting pipe 15 sprays into fresh air in combustion chamber 31, realize secondary oxygenating synchronousing combustion, the combustible such as carbon powder and the CO realization completely of unburned in stove fire is burnt completely, thus reach the effect reducing and eliminate flue dust, when temperature reaches requirement, air blast 13 is automatically out of service, stablizes in-furnace temperature.
The emission of saving furnace of the present invention is detected, detecting instrument and testing result as follows:
Tester model: the automatic smoke/gas tester of 3012H type, moral Figure 33 5 flue gas analysis instrument.
Testing result is as follows:
| Test event | Test result | Standard value | Corresponding criterion number |
| Smoke dust discharge concentration (mg/Nm 3Dry) | 27 | 30 | DB37/2374-2013 |
| SO in flue gas 2Concentration of emission (mg/Nm 3Dry) | 72 | 200 | DB37/2374-2013 |
| NO in flue gas XConcentration of emission (mg/Nm 3） | 68 | 300 | DB37/2374-2013 |
As seen from the above table, saving furnace of the present invention SO in smoke dust discharge concentration, flue gas
2nO in concentration of emission and flue gas
xconcentration of emission aspect is all significantly less than standard value, reduces environmental pollution.
Be schematic diagram when saving furnace of the present invention is arranged in barn as shown in Figure 5, Figure 6, barn comprises the heating clamber 33 and drying chamber 37 that are surrounded by body of wall 39, drying chamber 37 is arranged on the side of heating clamber 33, the top of heating clamber 33 is provided with fan house 34, fan house 34 is communicated with drying chamber 37, fan house 34 is provided with blower fan 35 with the connectivity part of drying chamber 37, cocycle air port 36 is provided with in fan house 34, be communicated with by air port 40 between fan house 34 with drying chamber 37, the sidewall of heating clamber 33 is provided with hydrofuge door 38.
During installation, furnace shell 1 and heat exchanger 26 are arranged in heating clamber 33, and feed pipe 20 is arranged on outside through the body of wall 39 of heating clamber 33 and is connected with feeder 24, and shoot door 2 is also passed by the body of wall 39 of heating clamber 33 and is arranged on outside.Feeder 24 and shoot door 2 are separately positioned on the outside of body of wall 39, can not cause the phenomenons such as contamination of products to be baked or sooting, ensure baking quality.
Claims (10)
1. energy-saving and emission-reduction heating furnace, comprise furnace shell (1), the inside of furnace shell (1) is provided with burner hearth (101), establishes fire grate (11) in burner hearth (101), it is characterized in that: (1) offers outlet flue to furnace shell, outlet flue is communicated with the heat exchanger (26) for ventilation heat exchange.
2. energy-saving and emission-reduction heating furnace according to claim 1, is characterized in that: the outside of furnace shell (1) is provided with for the feeder (24) to the interior automatic filling fuel of fire grate (11).
3. energy-saving and emission-reduction heating furnace according to claim 2, it is characterized in that: described feeder (24) comprises hopper (10), hopper (10) is connected with feed pipe (20), described feed pipe (20) is deep into furnace shell (1) inside and is arranged on the top of fire grate (12), is provided with feeding auger (21) in feed pipe (20).
4. energy-saving and emission-reduction heating furnace according to claim 3, is characterized in that: the below of described fire grate (11) is provided with combustion-supporting airduct (14), and combustion-supporting airduct (14) stretches out furnace shell (1) and is externally connected to air blast (13).
5. energy-saving and emission-reduction heating furnace according to claim 4, it is characterized in that: the position described feed pipe (20) being positioned at furnace shell (1) outside is provided with side air inlet (19), the position described combustion-supporting airduct (14) being positioned at furnace shell (1) outside is provided with side air-out mouth (18), by being communicated with communicating pipe (28) between side air inlet (19) with side air-out mouth (18).
6. the energy-saving and emission-reduction heating furnace according to claim 1-5 any one, it is characterized in that: described fire grate (11) top fastens has resume combustion to encircle (12), form combustion chamber (31) between described resume combustion arch (12) and fire grate (11), the position between described resume combustion arch (12) and feed pipe (20) is fixedly connected with the secondary combustion-supporting airduct (15) for providing combustion air in combustion chamber (31).
7. energy-saving and emission-reduction heating furnace according to claim 6, is characterized in that: the air holes (151) described secondary combustion-supporting airduct (15) offering multiple even setting, the angle between secondary combustion-supporting airduct (15) and horizontal plane is 45 °.
8. energy-saving and emission-reduction heating furnace according to claim 1, it is characterized in that: described heat exchanger (26) comprises the first time fire-box (3) connected successively, fire-box (5) on first, second time fire-box (4), fire-box (23) on second, described first time fire-box (3), fire-box (5) on first, second time fire-box (4) and second is interconnected between fire-box (23), described first time fire-box (3) and second time fire-box (4) are arranged in same level, on described first, on fire-box (5) and second, fire-box (23) is arranged on the top of first time fire-box (3) and second time fire-box (4), fire-box (23) with respect to the horizontal plane height setting straggly on fire-box (5) and second on described first.
9. energy-saving and emission-reduction heating furnace according to claim 8, it is characterized in that: described first time fire-box (3) is communicated with the first fire tube (6) be arranged side by side by four between the outlet flue on furnace shell (1), between two adjacent first fire tubes (6), there is gap, two adjacent first fire tubes (6) distance consistent.
10. energy-saving and emission-reduction heating furnace according to claim 9, it is characterized in that: described first time fire-box (3) is communicated with by three second fire tubes (7) with between fire-box on first (5), second fire tube (7) is arranged on the side of the first fire tube (6), between two adjacent second fire tubes (7), there is gap, two adjacent second fire tubes (7) distance consistent, the second fire tube (7) is arranged on the position between the first fire tube (6) gap;
Be communicated with by the 3rd fire tube (8) between fire-box (5) with second time fire-box (4) on described first, between two adjacent the 3rd fire tubes (8), there is gap, two adjacent the 3rd fire tubes (8) distance consistent, 3rd fire tube (8) is arranged on the side of the second fire tube (7), and the 3rd fire tube (8) and the second fire tube (7) one_to_one corresponding are arranged;
Described second time fire-box (4) is communicated with by two the 4th fire tubes (9) with between fire-box on second (23), 4th fire tube (9) is arranged on the side of the 3rd fire tube (8), have gap between two the 4th fire tubes (9), the 4th fire tube (9) is arranged on the position between the 3rd fire tube (8) gap;
On described second, fire-box (23) is connected with chimney (27).
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| CN201510022832.8A CN104676888A (en) | 2015-01-16 | 2015-01-16 | Energy-saving emission-reducing heating furnace |
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Application publication date: 20150603 |