CN206291466U - A kind of biomass thermal wind furnace - Google Patents

Abstract

The utility model is related to a kind of biomass thermal wind furnace, blast pipe is provided with the discharge nozzle of biomass feed pipe upper end, blast pipe and discharge nozzle are on same straight line, it is possible to prevente effectively from the flare in stove is entered into discharge nozzle, the biomass fuel being so prevented from discharge nozzle is ignited, simultaneously play it is combustion-supporting enter wind action, it is ensured that feed device safely and smoothly runs；Heat-exchange device structure is improved appropriately simultaneously, is exchanged using two grades of isolated thermals, raising heat exchanging efficiency, and reduce dust so that discharge meets national standard.

Description

A kind of biomass thermal wind furnace

Technical field

The utility model is related to hot-blast stove, specifically a kind of biomass thermal wind furnace.

Background technology

As announcement number includes flue, heat-exchanger rig, air flue, flue for CN203116278U discloses a kind of biomass thermal wind furnace It is connected with heat-exchanger rig by air flue, i.e., Hymecromone is crossed air flue and is connected with the hot gas road of heat-exchanger rig, thermal source is passed through heat exchange In device；Fire grate support member and the fire grate being placed on the fire grate support member are provided with flue, fire resisting water is provided with the flue Mud layer, refractory cement layer extends along the axis direction of flue and forms a cavity, and the hot blast is due to heat-exchanger rig heat exchange Not enough fully, the flue-gas temperature of discharge is higher, and dust content is higher in flue gas；The inside of inner bag is set additionally, due to ventilation duct, Passed through in cold wind people's ventilation duct, ventilation duct outside is hot blast, and the temperature of such wall of inner container can be higher, causes heat to lose, drop Low heat exchanger effectiveness；Dust content is higher in tail gas simultaneously, can pollute air.

Utility model content

The purpose of this utility model is to provide a kind of biomass thermal wind furnace, at the discharge nozzle of biomass feed pipe upper end There is provided blast pipe, blast pipe and discharge nozzle are on same straight line, it is possible to prevente effectively from the flare in stove enters into discharge nozzle Interior, the biomass fuel being so prevented from discharge nozzle is ignited, at the same play it is combustion-supporting enter wind action, it is ensured that feed device Safely and smoothly run；Heat-exchange device structure is improved appropriately simultaneously, raising heat exchanging efficiency, and reduces dust, So that discharge meets national standard.

Following technical scheme is used to achieve the above object：

Burner hearth is set in a kind of biomass thermal wind furnace, including frame, body of heater, blower fan and heat-exchange device, body of heater, described Body of heater outside be provided with feed mechanism, feed mechanism import is connected with hopper, and the outlet of feed mechanism is communicated with burner hearth；It is described Feed mechanism include feed pipe and feeding motor, feed pipe is obliquely installed, and feed pipe is internally provided with feeding spiro rod, feeding spiral shell The lower end of bar is connected with the output end of feeding motor, and the upper end of feed pipe is provided with discharge nozzle obliquely, discharge nozzle connection stove Thorax, described feed pipe lower end is connected by feed pipe with hopper, is set on the position of correspondence discharge nozzle on described feed pipe There is blast pipe obliquely, blast pipe and discharge nozzle are on same straight line, and blast pipe is connected by pipeline with blower fan, body of heater top Portion sets heat outlet, and heat outlet is connected with heat-exchange device.

Connected with heat-exchange device by connect cover at heat outlet at the top of the body of heater, described heat-exchange device bag One-level heat-exchange device, two grades of heat-exchange devices and induced-draught fan are included, described one-level heat-exchange device includes heat conducting pipe and casing, Some longitudinally disposed heat conducting pipes set box house, and heat transmission fin is also wrapped with described heat conduction pipe outer wall, and heat conducting pipe is worn Cross casing top to be connected with connect cover, connect cover is internally provided with a dividing plate and connect cover is separated into inlet plenum and discharge chamber, leads A heat pipe part is connected with inlet plenum, and another part is connected with discharge chamber, and the lower end of some heat conducting pipes is and bottom half Dust collection chamber connection；Two grades of described heat-exchange devices include heat conduction casing and air inlet pipe, and heat conduction box house sets median septum Heat conduction box house is separated into two heat conduction rooms, two heat conduction room bottoms are connected by dust collection chamber, the top of one of heat conduction room Portion is connected with the discharge chamber of connect cover, and chimney is provided with the top of another heat conduction room；Described median septum and heat conduction casing Some mounting holes coordinated with air inlet pipe are set on the wall of side, and air inlet pipe is entered through median septum and the mounting hole of heat conduction wall box Tracheae one end is communicated with outside, and the air inlet pipe other end is communicated with the box house of one-level heat-exchange device；In one-level heat exchange dress The casing put is connected with induced-draught fan.

Feed pipe of the present utility model is obliquely installed, and the upper end of feed pipe is provided with discharge nozzle obliquely, and described send Blast pipe obliquely is provided with expects pipe on the position of correspondence discharge nozzle, blast pipe and discharge nozzle are on same straight line, enter Airduct is connected by pipeline with blower fan；When hot-blast stove works, biomass fuel is entered into feed pipe from hopper, then by feeding Screw rod is delivered up along feed pipe, then enters into burner hearth by discharge nozzle, and during due to hearth combustion, high temperature can be by tremie pipe Interior biomass are lighted, the fuel that can be ignited in feed pipe, are this so as to influence biomass normally to be conveyed in feed pipe Utility model increased blast pipe, and blast pipe and discharge nozzle are on same straight line, and blower fan is by blast pipe in burner hearth Blowing, on the one hand can make the biomass fuel in discharge nozzle be rapidly introduced into burner hearth, prevent from blocking discharge nozzle and can be effective Avoid the biomass fuel in discharge nozzle from being ignited, at the same play it is combustion-supporting enter wind action, it is ensured that feed device is safely and smoothly Operation.

Brief description of the drawings

Fig. 1 is side portion structure schematic diagram of the present utility model；

Fig. 2 is the structural representation of the utility model feed pipe；

Fig. 3 is the other direction structural representation of the utility model feed pipe；

Fig. 4 is the structural representation of the utility model heat-exchange device；

Fig. 5 is the structural representation of the utility model heat-exchange device other direction；

Fig. 6 is the utility model one-level heat-exchange device internal structure schematic diagram；

Fig. 7 is two grades of heat-exchange device internal structure schematic diagrams of the utility model.

Specific embodiment

As shown in figs. 1-7, the dual-purpose hot-blast stove of a kind of biomass fuel, including frame 1, body of heater 2, blower fan 3 and heat exchange dress 9 are put, described furnace interior is provided with burner hearth, the described outlet of feed mechanism 6 is communicated with the burner hearth of body of heater, described feeding Mechanism 6 includes feed pipe 61 and feeding motor 62, and feed pipe 61 is obliquely installed, and feed pipe 61 is internally provided with feeding spiro rod, send Expect that the lower end of screw rod is connected with the output end of feeding motor 62, the upper end of feed pipe 61 is provided with discharge nozzle 611 obliquely, discharging Pipe 611 connects burner hearth, and the described lower end of feed pipe 61 is connected by feed pipe 612 with hopper 7, correspondence on described feed pipe 61 Blast pipe 613 obliquely is provided with the position of discharge nozzle 611, blast pipe 613 and discharge nozzle 611 are on same straight line, The lower end of blast pipe 613 is extended downwardly into discharge nozzle 611, and blast pipe 613 is connected by pipeline with blower fan 3；The top of body of heater 2 is set Heat outlet, heat outlet is connected with heat-exchange device 9.

Connected with heat-exchange device 9 by connect cover 10 at the heat outlet at the top of the body of heater 2, described heat exchange dress Put including 91, two grades of heat-exchange devices 92 of one-level heat-exchange device and induced-draught fan 93, described one-level heat-exchange device 91 includes Heat conducting pipe 911 and casing, some longitudinally disposed heat conducting pipes 911 set box houses, on the described outer wall of heat conducting pipe 911 also around Heat transmission fin improving heat radiation efficiency is connected to, heat conducting pipe 911 is connected through casing top with connect cover 10, the inside of connect cover 10 is set There is a dividing plate 101 that connect cover 10 is separated into inlet plenum and discharge chamber, the part of heat conducting pipe 911 is connected with inlet plenum, another portion Divide and connected with discharge chamber, the lower end of some heat conducting pipes 911 connects with the dust collection chamber 912 of bottom half；Described two grades Heat-exchange device 92 includes heat conduction casing 921 and air inlet pipe 922, and the inside of heat conduction casing 921 sets median septum 95 by heat conduction casing 921 inside separate two heat conduction rooms, and two heat conduction rooms bottom is connected by the first dust collection chamber 923, the top of one of heat conduction room Portion is connected with the discharge chamber of connect cover 10, and chimney 96 is provided with the top of another heat conduction room；Described median septum 95 and heat conduction Some mounting holes coordinated with air inlet pipe are set on the side wall of casing, and air inlet pipe 922 passes through median septum 95 and the side of heat conduction casing 921 The mounting hole of wall, one end of air inlet pipe 922 communicates with outside, in the casing of the other end of air inlet pipe 922 and one-level heat-exchange device 91 Portion communicates；Heat collecting chamber 94 is also set up in the casing side of one-level heat-exchange device 91, heat collecting chamber 94 connects with casing, described collection Hot cell 94 connects with induced-draught fan 93.

Biomass fuel enters into feed pipe 61, feeding motor 62 from hopper through feed pipe 612 when the utility model is used Drive screw rod to be delivered up biomass combustion, be transported to the position of discharge nozzle 611, the burner hearth inside body of heater 2 is sent to still further below Inside burnt；Feed pipe of the present utility model is obliquely installed, and the upper end of feed pipe is provided with discharge nozzle obliquely, described Blast pipe obliquely is provided with feed pipe on the position of correspondence discharge nozzle, blast pipe and discharge nozzle are on same straight line, Blast pipe is connected by pipeline with blower fan；When hot-blast stove works, during due to hearth combustion, high temperature can be by the biomass in tremie pipe Light, the biomass fuel that can be ignited in feed pipe, so that influenceing biomass normally to be conveyed in feed pipe even occurs fire Calamity, is that this utility model increased blast pipe, and blast pipe and discharge nozzle are on same straight line, and blower fan passes through blast pipe Dried in burner hearth, the biomass fuel in discharge nozzle on the one hand can be made to be rapidly introduced into burner hearth, it is possible to be prevented effectively from stove Interior flare is entered into discharge nozzle, and the biomass fuel being so prevented from discharge nozzle is ignited, at the same play it is combustion-supporting enter Wind action, it is ensured that feed device safely and smoothly runs.

The heat outlet that hot blast passes through the top of body of heater 2 after burning in addition, is introduced into the inlet plenum of connect cover again from top to down The heat conducting pipe of one-level heat-exchange device is entered into, then dust collection chamber's wraparound of hot gas from one-level heat-exchange device bottom half is another The heat conducting pipe of side, enters into discharge chamber, then entered into two grades of heat-exchange device heat conduction casings from discharge chamber, heat conduction from bottom to top Two heat conduction rooms, the last chimney from top of two heat conduction room Us of heat conduction casing are separated into by median septum in casing Discharge；Hot gas from one-level heat-exchange device and two grades of heat-exchange devices pass through when by twice U, dust is basic in hot gas It is deposited in dust collection chamber, the tail gas finally discharged can reach environmental protection standard；Other the utility model hot gas is filled in one-level heat exchange Passed through from heat conducting pipe inside when putting inside, due to hot gas, just from body of heater, out temperature is higher, from heat conducting pipe inside by that can reduce Heat is distributed by tank wall, and is then directly to be passed through from heat conduction box house in two grades of heat-exchange devices, due to by two grades of heat After switch heat exchange, temperature decreases, and being passed through from heat conduction box house can make the extraneous cold sky for having just enter into air inlet pipe Gas is preheated, raising heat exchanging efficiency, carries out secondary adding after being entered into the casing of one-level heat-exchange device from air inlet pipe again Heat, is most conveyed out by heat collecting chamber and induced-draught fan, and the utility model heat exchange is by the way of completely isolated, it is ensured that conveying The hot-air gone out it is clean pollution-free, no matter greenhouse gardening or grain-drying, be all especially suitable for.

Claims (3)

1. a kind of biomass thermal wind furnace, including frame (1), body of heater (2), blower fan (3) and heat-exchange device (9), described body of heater Burner hearth is internally provided with, feed mechanism is provided with the outside of described body of heater, it is characterised in that：Described feed mechanism (6) Outlet is communicated with the burner hearth of body of heater, and described feed mechanism (6) includes feed pipe (61) and feeding motor (62), feed pipe (61) It is obliquely installed, feed pipe (61) is internally provided with feeding spiro rod, the lower end of feeding spiro rod is connected with feeding motor (62) output end, The upper end of feed pipe (61) is provided with discharge nozzle (611) obliquely, discharge nozzle (611) connection burner hearth, described feed pipe (61) lower end is connected by feed pipe (612) with hopper (7), the position of correspondence discharge nozzle (611) on described feed pipe (61) On be provided with blast pipe (613) obliquely, blast pipe (613) and discharge nozzle (611) on same straight line, blast pipe (613) lower end is extended downwardly into discharge nozzle (611), and blast pipe (613) is connected by pipeline with blower fan (3)；Body of heater (2) top Heat outlet is set, and heat outlet is connected with heat-exchange device (9).

2. a kind of biomass thermal wind furnace as claimed in claim 1, base is characterised by：Heat outlet at the top of the body of heater (2) Place is connected by connect cover (10) with heat-exchange device (9), and described heat-exchange device includes one-level heat-exchange device (91), two Level heat-exchange device (92) and induced-draught fan (93), described one-level heat-exchange device (91) include heat conducting pipe (911) and casing, if Dry longitudinally disposed heat conducting pipe (911) sets box house, and heat conducting pipe (911) is connected through casing top with connect cover (10), Connect cover (10) is internally provided with a dividing plate (101) and connect cover (10) is separated into inlet plenum and discharge chamber, heat conducting pipe (911) Part is connected with inlet plenum, and another part is connected with discharge chamber, the lower end of some heat conducting pipes (911) with bottom half Dust collection chamber (912) connects；Two grades of described heat-exchange devices (92) include heat conduction casing (921) and air inlet pipe (922), heat conduction case Median septum (95) is set inside body (921) will separate two heat conduction rooms inside heat conduction casing (921), two heat conduction rooms bottom passes through First dust collection chamber (923) connects, and the top of one of heat conduction room connects with the discharge chamber of connect cover (10), another heat conduction room Top be provided with chimney (96)；Set what some and air inlet pipe coordinated on described median septum (95) and the side wall of heat conduction casing Mounting hole, air inlet pipe (922) through median septum (95) and the mounting hole of heat conduction casing (921) side wall, air inlet pipe (922) one end with Outside is communicated, and air inlet pipe (922) other end is communicated with the box house of one-level heat-exchange device (91)；In one-level heat-exchange device (91) casing is connected with induced-draught fan (93).

3. a kind of biomass thermal wind furnace as claimed in claim 2, base is characterised by also being wrapped with described heat conduction pipe outer wall Heat transmission fin.