CN201177367Y - Boiler using paddy hull as fuel - Google Patents

Abstract

The utility model relates to a combustion apparatus, in particular to a boiler with rice hulls as a fuel, which consists of a boiler body, a base, a feeding device, an air supply device, and a settlement device, wherein the boiler body consists of a combustion chamber and a heat exchanger, a transverse water pipe bundle of the combustion chamber consists of three transverse water pipes of the combustion chamber, a front collecting box and a scale removal pipe, the heat exchanger consists of a drum, a transverse water pipe of the heat exchanger, a deflection wall and a settlement device, the settlement device consists of a dust falling adjustment mechanism and a settling chamber, the feeding device consists of a material fan, a feeding pipe, a hopper and a flashboard, and the air supply device consists of an upper air supply duct, a lower air supply duct, two air adjustment valves and a blast blower. The boiler with the rice hulls as the fuel can ensure that the rice hulls are evenly suspended and fully combusted in the combustion chamber, a water-cooled wall pipe and the transverse water pipes of the combustion chamber are arranged in the combustion chamber, the transverse water pipes of the combustion chamber and an inclined type transverse water pipe in the heat exchanger increase the heated area, and a deflection wall structure increases the stroke of fume in the boiler and the secondary settlement of smoke dust.

Description

A kind of is the boiler of fuel with the rice husk

Affiliated technical field

The utility model relates to a kind of burner, and especially a kind of is the boiler of fuel with the rice husk.

Background technology

Utilize coal, oil is than mature technology for the boiler combustion technology of raw material, at present the main direction of studying of people in field of combustion technology is biomass fuel and is the combustion method and the burner of fuel with rubbish, because the biomass fuel resource is wide, become the direction of people's research especially, because rice husk is easily tied carbon, it is research main direction especially just of the burner of fuel with the rice husk, having occurred some in recent years is the boiler of fuel with the rice husk, but it is not enough all to exist rice husk suspension time in burner hearth, inhomogeneous, part rice husk unburned is fully just fallen and is formed the carbon piece on the fire grate, can not fully burn the combustion chamber, the structure of heat exchanger is unreasonable, heating surface area is little, the stroke of flue gas in heat exchanger is short, and the thermal efficiency is low, once ventilates, each section of burner hearth ventilates inhomogeneous, a sedimentation of flue dust to the untreated flue dust of part is directly discharged, does not reach environmental requirement.

Summary of the invention

In order to overcome the deficiency that prior art exists, it is the boiler of fuel with the rice husk that the utility model provides a kind of, the boiler that should be fuel with the rice husk can not only reach the purpose that rice husk burns in boiler, and can make rice husk evenly fully burning of suspension in the combustion chamber, water screen tube and combustion chamber horizontal water tube have been set up in the combustion chamber, tilting horizontal water tube in combustion chamber horizontal water tube and the heat exchanger has increased heating surface area, the wall construction of turning back has increased stroke and the flue dust secondary settlement of flue gas in stove, has reached environmental requirement.

The technical scheme that its technical problem that solves the utility model adopts is: this is a kind of to be that the boiler of fuel is serial boiler from 0.2 ton to 2 tons with the rice husk, with 0.2 ton of boiler is example, be by boiler body, base, pay-off, air-supply arrangement, sedimentation device is formed, boiler body is made up of combustion chamber and heat exchanger, the combustion chamber is by water screen tube, upper collecting chamber, the next part case, preceding collection case, combustion chamber transverse water pipe bundle and fire grate are formed, six roots of sensation water screen tube becomes n shape uniform, its top disconnects the cooperation solid welding that communicates with upper collecting chamber, the lower end cooperation solid welding that communicates with the next part case, the cooperation solid welding that communicates with heat exchanger drum water jacket wall of last next part case one end, the other end leans out the combustion chamber antetheca and cooperates solid welding, last next part case leans out combustion chamber antetheca end the snaking plug, the combustion chamber transverse water pipe bundle is by three combustion chamber horizontal water tubes, preceding collection case and snaking pipe are formed, the combustion chamber transverse water pipe bundle is low early and high after inclination displacement structure, its inclination angle is that five degree are to 25 degree, preceding collection case is horizontal, the cooperation solid welding that communicates with preceding collection case of three combustion chamber horizontal water tube one terminations, three snaking Guan Yiduan cooperation solid welding that communicates with three relative and preceding collection casees of combustion chamber horizontal water tube, three snaking pipe other ends have the snaking plug, the cooperation solid welding that communicates with heat exchanger drum water jacket wall of three combustion chamber horizontal water tube one ends, preceding collection case cooperates with the combustion chamber antetheca, and three snaking pipes lean out the combustion chamber antetheca, the combustion chamber antetheca has upper furnace door, lower furnace door, fire grate is that ten six roots of sensation cast steel fire bars are formed, two ends cooperate with the base crossbeam is uniform, heat exchanger is by drum, the heat exchanger horizontal water tube, the wall of turning back, sedimentation device is formed, drum is for uprightly cylindric, and constitute the double wall water jacket between outside diameter wall and inner diameter wall, cleaning door is arranged at external diameter and top, soaring mouthful, the heat exchanger horizontal water tube tilts to place, its inclination angle is that five degree are to 25 degree, two ends cooperate solid welding with the drum inner diameter wall, and communicate with the double wall water jacket, the wall of turning back is an xoncrete structure, cooperates support with the heat exchanger horizontal water tube, the wall both sides of turning back cooperate with the drum internal diameter, sedimentation device is made up of depositing dust governor motion and expansion chamber, and the depositing dust governor motion is by adjustable plate, regulating shaft, the adjusting axle sleeve is formed, and two two relative with the drum bottom respectively unthreaded holes of adjusting axle sleeve external diameter cooperate solid welding, and communicate with the drum inner chamber, adjustable plate is a steel plate, and becomes the sieve shape, and the adjustable plate upper side cooperates solid welding with regulating shaft, regulating shaft both ends and two adjusting sleeve diameters are rotatably assorted, and two ends leans out the drum external diameter, and base is to be welded by I-steel, and base cooperates solid welding with combustion chamber and heat exchanger bottom surface, base cooperates with the boiler concrete pad, and heat exchanger drum inner chamber communicates with expansion chamber, and No. one time ventilation unit is made up of annular wind-distributing pipe and blast pipe, and annular wind-distributing pipe is evenly distributed in exhaust vent, blast pipe cooperates solid welding with annular wind-distributing pipe, and communicate with annular wind-distributing pipe internal diameter, expansion chamber and boiler concrete pad are one, are the tank shape, be full of water in the expansion chamber, pay-off is by materiel fan, feed pipe, hopper and flashboard are formed, and materiel fan cooperates with feed pipe, the hopper funnel, funnel bottom has Yi Changkou, flashboard cooperates with hopper base minister mouth, and air-supply arrangement is by last air-supply deferent, under the deferent of blowing, two adjusting valves and air blast are formed, and following air-supply deferent one end cooperates with a wind-distributing pipe, the other end cooperates with air blast, there is adjusting valve in forward portion, on blow deferent become 90 the degree bend pipes, an end cooperates with top, combustion chamber, and communicate with the combustion chamber inner chamber, the other end cooperates solid welding with the deferent of blowing down, and communicates with the deferent of blowing down, near the deferent place that blows down adjusting valve is arranged.

The beneficial effects of the utility model are, 1, burning feature according to rice husk, boiler tube adopts the tilting structure, water screen tube and combustion chamber horizontal water tube have been set up in the combustion chamber, increased heating surface area, improved boiler thermal output, 2, the required air that burns enters respectively from the fire grate above and below is two-way, the air-supply reinforcement gas stream in the stove disturbance of fire grate below, rice husk are held up becomes the suspension combustion state above fire grate, the air-supply of fire grate top has solved combustion chamber oxygen-supplying amount deficiency, change burning condition, make rice husk abundant, rapidly combustion purpose, 3, being provided with adjusting valve on ajutage and the last ajutage down, finely tune the proportioning of twice wind according to combustion position, guaranteed each section of burner hearth Uniform Ventilation, rapidly, 4, be provided with the wall of turning back in the heat exchanger, increased the stroke of flue gas in stove, improved the thermal efficiency of boiler effectively, flue dust is through twice sedimentation, realized the boiler dirt that disappears, 5, furnace grate tube the place ahead is provided with the snaking pipe, removes the dirt that produces in the furnace grate tube easily.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model structural front view,

Fig. 2 is the structure left view of the utility model boiler Fig. 1,

Fig. 3 is the A-A cutaway view of the utility model boiler Fig. 2,

Fig. 4 is the utility model boiler cold wall pipe structural front view,

Fig. 5 is the structure vertical view of the utility model boiler water-wall tube Fig. 3.

The specific embodiment

The specific embodiment of the present utility model is: with reference to Fig. 1, Fig. 2, Fig. 3 is by boiler body, base, pay-off, air-supply arrangement, sedimentation device is formed, boiler body is made up of combustion chamber 1 and heat exchanger 2, combustion chamber 1 is by water screen tube 8, upper collecting chamber 7, next part case 12, preceding collection case 10, combustion chamber transverse water pipe bundle and fire grate are formed, with reference to Fig. 4, Fig. 5, the six roots of sensation water screen tube identical with water screen tube 8 becomes n shape uniform, its top disconnects the cooperation solid welding that communicates with upper collecting chamber 7, the cooperation solid welding that communicates of lower end and next part case 12 two identical next part casees, last next part case 7, the cooperation solid welding that communicates with heat exchanger 2 drums 31 water jacket wall of 12 1 ends, the other end leans out combustion chamber 1 antetheca and cooperates solid welding, last next part case 7,12 lean out combustion chamber antetheca end three the snaking plugs identical with snaking plug 5, and the combustion chamber transverse water pipe bundle is by three combustion chamber horizontal water tubes, preceding collection case and snaking pipe are formed, and the combustion chamber transverse water pipe bundle is low early and high after inclination displacement structure, its inclination angle is that five degree are to 25 degree, before collection case 10 horizontal, the three piece combustion chamber horizontal water tube one terminations identical cooperation solid welding that communicates with preceding collection case 10, three piece snaking Guan Yiduans with three piece combustion chamber horizontal water tubes relative with preceding collection case 10 the communicate cooperation solid welding identical with three snaking pipes 11 with combustion chamber horizontal water tube 9, three snaking pipe other ends have the snaking plug, the cooperation solid welding that communicates with heat exchanger 2 drums 31 water jacket wall of three combustion chamber horizontal water tube one ends, preceding collection case 10 cooperates with combustion chamber 1 antetheca, and three snaking pipes lean out combustion chamber 1 antetheca, combustion chamber 1 antetheca has upper furnace door 23, lower furnace door 24, fire grate is that ten six roots of sensation cast steel fire bars are formed, and ten six roots of sensation fire bars two ends identical with fire bars 13 cooperate with the base crossbeam is uniform, with reference to Fig. 1, Fig. 2, Fig. 3, heat exchanger 2 is by drum, the heat exchanger horizontal water tube, the wall of turning back, sedimentation device is formed, drum 31 is for uprightly cylindric, and formation double wall water jacket between outside diameter wall and inner diameter wall, and cleaning door 17 is arranged at external diameter and top, soaring mouthful 14, several heat exchanger horizontal water tubes identical with heat exchanger horizontal water tube 15 tilt to place, its inclination angle be five the degree to 25 degree, two ends cooperate solid welding with the drum inner diameter wall, and communicate with the double wall water jacket, the wall 16 of turning back is xoncrete structure, cooperate support with the heat exchanger horizontal water tube, wall 16 both sides of turning back cooperate with drum 31 internal diameters, and sedimentation device is made up of depositing dust governor motion and expansion chamber, the depositing dust governor motion is by adjustable plate 18, regulating shaft 32, the adjusting axle sleeve is formed, two two relative with drum 31 bottoms respectively unthreaded holes of adjusting axle sleeve external diameter cooperate solid welding, and communicate with drum 31 inner chambers, and adjustable plate 18 is a steel plate, and become the sieve shape, adjustable plate 18 upper sides cooperate solid welding with regulating shaft 32, and regulating shaft 32 both ends and two adjusting sleeve diameters are rotatably assorted, and two ends leans out drum 31 external diameters, base 3 is to be welded by I-steel, base 3 cooperates solid welding with combustion chamber 1 and heat exchanger 2 bottom surfaces, and base 3 cooperates with the boiler concrete pad, and heat exchanger 2 drums 3 inner chambers communicate with expansion chamber 6, with reference to Fig. 3, No. one time ventilation unit is made up of annular wind-distributing pipe 28 and blast pipe 30, and annular wind-distributing pipe 28 is evenly distributed in exhaust vent, and blast pipe 30 cooperates solid welding with annular wind-distributing pipe 28, and communicate with annular wind-distributing pipe 28 internal diameters, expansion chamber 6 is an one with the boiler concrete pad, is the tank shape, is full of water in the expansion chamber 6, with reference to Fig. 1, pay-off 4 is by materiel fan 19, feed pipe 20, hopper 21 and flashboard 22 are formed, and materiel fan 19 cooperates with feed pipe 20, hopper 21 funnels, Yi Changkou is arranged at funnel 21 bottoms, flashboard 22 cooperates with hopper base minister mouth, with reference to Fig. 2, Fig. 3, air-supply arrangement is by last air-supply deferent 29, under the deferent 33 of blowing, two adjusting valves 25,27 and air blast 26 form, under deferent 33 1 ends of blowing cooperate with blast pipe 30, the other end cooperates with air blast 26, and there is adjusting valve 27 in forward portion, on 29 one-tenth 90 of the deferents degree bend pipe of blowing, one end cooperates with 1 top, combustion chamber, and communicate with combustion chamber 1 inner chamber, the other end cooperates solid welding with the deferent 33 of blowing down, and communicates with the deferent of blowing down, near the deferent place that blows down adjusting valve 25 is arranged, when using, rice husk enters combustion chamber 1 through pay-off, and the air inlet of fire grate below and top is blown simultaneously, at this moment rice husk is in the suspension combustion state in combustion chamber 1, the most rice husk of unburned drops on the fire grate and burns away, flue gas the stopping through the wall 16 of turning back that the burning back produces, excessively move downward and wash away the heat exchanger horizontal water tube, expansion chamber 6 superficial waters are heated and produce gasification, most of flue dust falls into expansion chamber 6, realize a sedimentation, the flue gas fold is changeed wall 16 and is upwards continued to wash away the heat exchanger horizontal water tube, and the flue dust of sedimentation is not through space convergent-divergent in the heat exchanger 2 with after absorbing steam, deadweight increases, fall into expansion chamber 6, realize secondary settlement, by changing the direction of depositing dust adjustable plate 18, the control smoke discharge amount reaches environmental requirement.

Claims (3)

1, a kind of is the boiler of fuel with the rice husk, be by boiler body, base, pay-off, air-supply arrangement, sedimentation device is formed, it is characterized in that, six roots of sensation water screen tube becomes n shape uniform, its top disconnects the cooperation solid welding that communicates with upper collecting chamber, the lower end cooperation solid welding that communicates with the next part case, the cooperation solid welding that communicates with heat exchanger drum water jacket wall of last next part case one end, the other end leans out the combustion chamber antetheca and cooperates solid welding, last next part case leans out combustion chamber antetheca end the snaking plug, the collection case is horizontal before the transverse water pipe bundle of combustion chamber, the cooperation solid welding that communicates with preceding collection case of three combustion chamber horizontal water tube one terminations, three snaking Guan Yiduan cooperation solid welding that communicates with three relative and preceding collection casees of combustion chamber horizontal water tube, three snaking pipe other ends have the snaking plug, the cooperation solid welding that communicates with heat exchanger drum water jacket wall of three combustion chamber horizontal water tube one ends, preceding collection case cooperates with the combustion chamber antetheca, and three snaking pipes lean out the combustion chamber antetheca, the combustion chamber antetheca has upper furnace door, lower furnace door, the fire grate two ends cooperate with the base crossbeam is uniform, drum is for uprightly cylindric, and constitute the double wall water jacket between outside diameter wall and inner diameter wall, cleaning door is arranged at external diameter and top, soaring mouthful, heat exchanger horizontal water tube two ends cooperate solid welding with the drum inner diameter wall, and communicate with the double wall water jacket, the wall of turning back is an xoncrete structure, cooperate support with the heat exchanger horizontal water tube, the wall both sides of turning back cooperate with the drum internal diameter, two unthreaded holes that two adjusting axle sleeves of depositing dust governor motion external diameter is relative with the drum bottom respectively cooperate solid welding, and communicate with the drum inner chamber, adjustable plate is a steel plate, and become the sieve shape, the adjustable plate upper side cooperates solid welding with regulating shaft, regulating shaft both ends and two adjusting sleeve diameters are rotatably assorted, and two ends leans out the drum external diameter, base is to be welded by I-steel, base cooperates solid welding with combustion chamber and heat exchanger bottom surface, base cooperates with the boiler concrete pad, and heat exchanger drum inner chamber communicates with expansion chamber, No. one time ventilation unit annular wind-distributing pipe is evenly distributed in exhaust vent, blast pipe cooperates solid welding with annular wind-distributing pipe, and communicate with annular wind-distributing pipe internal diameter, expansion chamber and boiler concrete pad are one, be the tank shape, be full of water in the expansion chamber, the pay-off materiel fan cooperates with feed pipe, the hopper funnel, funnel bottom has Yi Changkou, flashboard cooperates with hopper base minister mouth, air-supply arrangement air-supply deferent one end down cooperates with a wind-distributing pipe, the other end cooperates with air blast, there is adjusting valve in forward portion, last air-supply deferent becomes 90 degree bend pipes, one end cooperates with top, combustion chamber, and communicate with the combustion chamber inner chamber, the other end cooperates solid welding with the deferent of blowing down, and communicate with the deferent of blowing down, adjusting valve is arranged near the deferent place that blows down.

2, according to claim 1 a kind of be the boiler of fuel with the rice husk, it is characterized in that the combustion chamber transverse water pipe bundle is low early and high after inclination displacement structure, its inclination angle be five the degree to 25 degree.

3, according to claim 1 a kind of be the boiler of fuel with the rice husk, it is characterized in that the heat exchanger horizontal water tube tilt to be placed, its inclination angle is that five degree are to 25 degree.

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