A kind of biological particles hot-blast stove
Technical field
The present invention relates to a kind of hot-blast stove, especially a kind of biological particles hot-blast stove.
Background technique
Hot-blast stove as thermal power machinery starts to be widely applied in late 1970s in China, many industries
As the regeneration product of electric heat source and conventional vapor power heat source, mostly use coal, coke, diesel oil, heavy oil, coal gas etc. as combustion
Material, but a series of pernicious gas can be generated after above-mentioned fuel combustion, environment and human body are caused with very serious influence.
With the development and progress of society, people increasingly pay attention to environment, traditional hot-blast stove oneself gradually by biomass
Hot-blast stove is substituted, and so-called biomass thermal wind furnace is exactly using biomass as fuel, and the pernicious gas of generation is few compared with traditional fuel.
But since biomass generally has the characteristics that moisture content is high, fuel change in size is big and content of ashes is high, cause above-mentioned biology
That there are distribution wind unfairs is even for matter hot-blast stove, fuel combustion not exclusively, be easy to produce circuit fire phenomenon during heating, heating is slow, heat
The defects of low efficiency, smoke abatement and dust control is poor, discharges not environmentally, and service life is short.It can be seen that the appearance of biomass thermal wind furnace is still
There is no the above-mentioned great number of issues of very good solution, therefore studies a kind of environmentally friendly biomass thermal wind furnace and become and be badly in need of solution at present
Certainly the technical issues of.
Summary of the invention
A kind of high-efficiency environment friendly is provided the purpose of the present invention is overcoming the above-mentioned insufficient of the prior art, low-carbon low consumption, cost
It is cheap, biological particles hot-blast stove with long service life.
The technical scheme is that a kind of biological particles hot-blast stove, including furnace body, the furnace body is from inside to outside successively
Equipped with fire box, flue gas connecting tube, sieve-board type heat exchanger plates, heat-conducting plate and furnace shell, the lower part of the fire box is equipped with burner hearth, burner hearth it is outer
Wall is sieve-board type structure;Heat air inlet, the lower section of heat air inlet are equipped with by the top that the heat-conducting plate encloses the furnace chamber being set as
Equipped with air intake plate;The outlet of the flue connecting tube connects deduster.
Further, the air intake plate is sieve-board type air intake plate, tapered.
Further, the flue connecting tube has eight, and eight flue connecting tubes dislocation arrangement is set to fire box, air inlet
Between plate and sieve-board type heat exchanger plates;The entrance of eight flue connecting tubes connects fire box, and outlet connects deduster through flue outlet pipe;
It is connected per adjacent two flue connecting tubes through flue and closes connection flue ash hole.
Further, the burner hearth is tapered, and it is sieve-board type knot that the conical section of burner hearth, which includes a long side and a short side,
The angle of structure, the long side and horizontal plane is 30 °, and the angle of short side and horizontal plane is 40 °.
Further, the deduster is installed on the outside of furnace body, dust board is equipped in deduster and for controlling water level
Water level controller, the upper end of the deduster are helped the connection of flow fan connector to help flow fan;The side of deduster is equipped with blowdown
Mouthful, the bottom of deduster is connected with sewage pipe, and sewage pipe is equipped with blowdown valve.
Further, the feed inlet of the fire box is connected with feed screw, and feed screw includes feeding screw, set on sending
The sprocket wheel and the fuel hopper on the upside of feeding screw for expecting end coils, the feed inlet of the feeding screw connection fire box;Institute
The inside for stating fire box is equipped with fireguard, and the feeding screw is connected at fireguard.
Further, the feeding screw is sheathed in spiral duct, the feed inlet of one end connection fire box of spiral duct, spiral shell
One end of the downside connection cooling duct of conduit is revolved, the other end of the cooling duct connects combustion fan, the combustion fan
Lower section side through combustion fan connector connection burner hearth.
Further, the lower part of the burner hearth connects grate, and the lower end of grate is equipped with the waste heat for generating burner hearth surrounding
It is recycled to the heat recovery hole in burner hearth, the top of grate is equipped with fire hole.
Further, the two sides of the sieve-board type heat exchanger plates are symmetrically arranged with the hot-blast outlet of connection fire box outer wall;With fire box bottom
Portion is that circumference is placed with cold wind import on the furnace shell bottom surface on boundary.
Further, the outside of the burner hearth is furnace shell, and the lower part side of furnace shell is equipped with ash hole.
Beneficial effects of the present invention:
(1) fire box, flue gas connecting tube, sieve-board type heat exchanger plates, heat-conducting plate and furnace shell are successively arranged in furnace body from inside to outside, is led
The top that hot plate encloses the furnace chamber being set as is equipped with heat air inlet, and the lower section of air inlet is equipped with air intake plate, and fire box is by heat through sieve plate
The sieve pore of formula heat exchanger plates transfers heat to heat-conducting plate, and the heat of generation is transferred between heat-conducting plate and furnace shell through heat-conducting plate, then passes through heat
Amount air inlet concentrates on around fire box again through air intake plate, increases heat exchange area, so that thermal energy recycling is enhanced about more than once, cigarette
Temperature degree has reached national emission standard;
(2) outlet of flue connecting tube connects deduster, dust board and water level controller is equipped in deduster, so that flue gas
It falls in water and disappears after water filters with dust, extra flue gas or dust are discharged by sewage draining exit and sewage pipe, are truly realized
Smokeless ashless effect reaches dedusting and environmentally friendly purpose;The upper end connection of deduster helps flow fan, flue gas flow rate can be made to add
Fastly, it is ensured that hearth combustion is abundant;
(3) chamber design is tapered, the heat of bottom can be quickly recovered in fire box, save recovery time, heat
The rate of recovery is up to 80%, and Coal-fired capacity saves 30%, and combustion bavin amount saves 40%;The outer wall of burner hearth is sieve-board type structure, so that burner hearth heats
Fastly, not cutoff thoroughly solves coal, bavin cutoff, cooling, the problems such as need to manually roasting in charging;
(4) lower end of grate is equipped with heat recovery hole, for the waste heat generated around burner hearth to be recycled in burner hearth, so that
The quickly flowing of the fire of burner hearth, fuel combustion is more abundant, and furnace temperature is quickly enhanced about more than once, and energy saving and fuel;
(5) feed inlet of fire box is connected with feed screw, and the output end of feed screw is connected to the fire of the gear in fire box
At plate, so that fuel will not be tempered in fuel hopper in combustion;
(6) air outlet of combustion fan connects the feed inlet of fire box through cooling tube with spiral duct, on the one hand makes burner hearth
It is not influenced by the high temperature of fire box, it is ensured that burner hearth does not damage permanently, improves the service life of burner hearth, on the other hand, improves fire
The temperature of thorax improves the thermal efficiency so that fire box quick heating, transmits heat from level to level;
(7) air intake plate is tapered, the heat of heat air inlet can be quickly recycled to the surrounding of fire box, saves recycling
Time;Air intake plate uses sieve-board type air intake plate, and air inlet guarantees fire box temperature equalization without dead angle;
(8) it is placed with cold wind import by circumference on the furnace shell bottom surface on boundary of fire box bottom, fire box may make to be quickly cooled down drop
Temperature;
(9) the features such as thoroughly realizing without dead angle, noncoking, few ashes, is applicable not only to biomass fuel, even if using it
Its fuel can also reduce environmental pollution, substantially reduce energy consumption.
Detailed description of the invention
Fig. 1 is the structure sectional view of the embodiment of the present invention;
Fig. 2 is the superstructure schematic diagram of embodiment illustrated in fig. 1 furnace body;
Fig. 3 is the substructure schematic diagram of embodiment illustrated in fig. 1 furnace body.
Specific embodiment
Detailed construction of the invention is further described below in conjunction with the drawings and specific embodiments.
As shown in Fig. 1 ~ Fig. 3: a kind of biological particles hot-blast stove, including furnace body 1, furnace body 1 are successively arranged fire from inside to outside
The lower part of thorax 11, flue gas connecting tube 12, sieve-board type heat exchanger plates 13, heat-conducting plate 14 and furnace shell 15, fire box 11 is equipped with burner hearth 2.Fire box
11 are made from a material that be thermally conductive, and the heat of burner hearth 2 quickly can be transferred at fire box 11, be heated evenly fire box 11, improve heat
Efficiency.Furnace shell 15 is made of steel plate resistant to high temperature, heat preservation and good cooling results.The top for the furnace chamber 3 being set as is enclosed by heat-conducting plate 14
Equipped with heat air inlet 31, the lower section of heat air inlet 31 is equipped with tapered sieve-board type air intake plate 32.Sieve-board type air intake plate 32
It is connected with sieve-board type heat exchanger plates 13, to increase heat exchange area.The present embodiment sieve-board type air intake plate 32 is designed it is tapered, can
Heat at heat air inlet 31 is quickly recycled to the surrounding of fire box 11, saves recovery time;And sieve-board type structure is used, into
Wind guarantees 11 temperature equalization of fire box without dead angle.The present embodiment increases heat exchange area by setting multilayer heat transfer structure.Specifically
Heat transfer type are as follows: heat is transferred heat to heat-conducting plate 14 through the sieve pore of sieve-board type heat exchanger plates 13 by fire box 11, and the heat of generation is through thermally conductive
Plate 14 is transferred between heat-conducting plate 14 and furnace shell 15, then concentrates on fire again through sieve-board type air intake plate 32 by heat air inlet 31
Around thorax 11, so that thermal energy recycling is enhanced about more than once, and flue-gas temperature has reached national emission standard.
Flue connecting tube 12 has eight, eight dislocation arrangements of flue connecting tubes 12, circumference be arranged in fire box 11, sieve-board type into
Between aerofoil 32 and sieve-board type heat exchanger plates 13;The entrance of eight flue connecting tubes 12 connects fire box 11, exports through flue outlet pipe
121 connection dedusters 4;122 connection flue ash holes 123, i.e. flue are closed through flue connection per adjacent two flue connecting tubes 12
There are four 123 symmetry arrangements of ash hole.The flue gas that 1 fuel combustion of burner hearth generates enters fire box 11, since eight flues connect
Pipe 12 around 11 circumference of fire box arrange, enable eight flue connecting tubes 12 from different location absorb fire box 11 in flue gas simultaneously
It is transported in deduster 4 and carries out smoke filtration, it will not there are dead angles;The extra cigarette ash of flue connecting tube 12 is through flue ash discharge
123 discharge of mouth is collected, and is focused on.
Deduster 4 is installed on the outside of furnace body 1, is equipped with dust board 41 and the water level control for controlling water level in deduster 4
Device processed, the upper end of deduster 4 are helped the connection of flow fan connector 42 to help flow fan;The side of deduster 4 is equipped with sewage draining exit 43, removes
The bottom of dirt device 4 is connected with sewage pipe 44, and sewage pipe 44 is equipped with blowdown valve 45.Wherein, water level controller is for controlling dedusting
Water level in device 4 is in optimum level of water state;After flue gas enters deduster 4, after biggish dust particles are stopped by dust board 41
It falls in water and is removed, lesser dust particles are truly realized smokeless ashless effect by helping flow fan to be discharged through sewage draining exit 43
Fruit reaches dedusting and environmentally friendly purpose.In addition, flow fan is helped flue gas flow rate can be made to accelerate, quickly flows out in deduster 4 and carry out
Filtering, so that it is guaranteed that burner hearth 2 burns sufficiently, there is no a large amount of flue gases to hinder fuel combustion.Water in deduster 4 then passes through
Sewage pipe 44 is discharged, opening and end by 45 control of sewage disposal pipe 44 of blowdown valve.
The feed inlet of fire box 11 is connected with feed screw 5, and feed screw 5 includes feeding screw 51, is set to feeding spiral shell
It revolves the sprocket wheel 52 of 51 ends and the fuel hopper 53 set on 51 upside of feeding screw, feeding screw 51 connects the charging of fire box 11
Mouthful;The inside of fire box 11 is equipped with fireguard 111, and feeding screw 51 is connected at fireguard 111.Wherein, fuel hopper 53 is for containing
Biomass fuel or other fuel are filled, feeding screw 51, the middle part of feeding screw 51 are delivered fuel to by rotating sprocket 52
Equipped with helical axis, for driving feeding screw 51 to rotate, and then fuel is rotated to the feed inlet for being pushed out to fire box 11, and along fire box
11 fall in burner hearth 2.Since the delivery end of feeding screw 51 is located at fireguard 111, so that fuel is in combustion not
It can be tempered in fuel hopper 53, to improve the service life of feed screw 5, reduce economic loss.
Feeding screw 51 is sheathed in spiral duct 6, and the feed inlet of one end connection fire box 11 of spiral duct 6, spiral is led
One end of the downside connection spiral cooling duct 61 of pipe 6, the other end of spiral cooling duct 61 connect combustion fan, combustion fan
The lower section side of burner hearth 2 is connected through combustion fan connector 7.In the present embodiment, the air outlet of combustion fan is through spiral cooling wind
Pipe 61 connects fire box 11, influences burner hearth 2 by the high temperature of fire box 11, it is ensured that burner hearth 2 does not damage permanently, improves
On the other hand the service life of burner hearth 2 improves the temperature of fire box 11, and then transmit heat from level to level, improve the thermal efficiency.
Burner hearth 2 is tapered, and the conical section of burner hearth 2 includes a long side and a short side, and the angle of long side and horizontal plane is
30 °, the angle of short side and horizontal plane is 40 °.The pyramidal structure can quickly be recovered to the heat of bottom in fire box 11, save
Recovery time, heat recovery rate is up to 80%, when coal-fired or combustion bavin, may make Coal-fired capacity to save 30%, combustion bavin amount saves 40%.Furnace
The outer wall of thorax 2 is sieve-board type structure, and the structure is identical as the sieve-plate structure of sieve-board type heat exchanger plates 13, and conical screen plank frame can make
Burner hearth 2 heats not cutoff fastly, thoroughly solve coal, bavin cutoff, cooling, the problems such as need to manually roasting in charging.Burner hearth 2
Lower part connect grate 21, the lower end of grate 21 is equipped with heat recovery hole 211, and the waste heat for generating 2 surrounding of burner hearth recycles
To burner hearth 2, so that the fire quickly flowing in burner hearth 2, fuel combustion is more abundant, and furnace temperature is quickly enhanced about more than once, and saves
The energy and fuel.The top of grate 21 is equipped with fire hole 22, for lighting fuel.
The two sides of sieve-board type heat exchanger plates 13 are symmetrically arranged with the hot-blast outlet 7 of connection 11 outer wall of fire box,;It is with 11 bottom of fire box
Circumference is placed with cold wind import 8 on 15 bottom surface of furnace shell on boundary.The outside of burner hearth 2 is furnace shell 15, and the lower part side of furnace shell 15 is equipped with
Ash hole 9, for the slag generated after fuel combustion ash to be discharged.In the present embodiment, furnace shell 15 is with the junction of fire box 11 and burner hearth 2
It is divided into upper furnace shell 151 and lower furnace shell 152 for boundary, the width of upper furnace shell 151 is greater than lower furnace shell 152, circle on the bottom surface of upper furnace shell 151
It is placed with cold wind import 8 week, when furnace body 1 is stopped using, 8 fast cooling of cold wind import can be passed through;Two hot-blast outlets 7 can add
It is fast cooling.
The working process of this embodiment is as follows: fuel is placed in fuel hopper 62, is delivered to fire box 11 through feed screw 6
It is interior, fuel is lighted by fire hole 22, so that full combustion of fuel, flare is spread at fire box 2, and fire box 2 is by heat through sieve plate
The sieve pore of formula heat exchanger plates 13 transfers heat to heat-conducting plate 14, the heat of generation through heat-conducting plate 14 be transferred to heat-conducting plate 14 and furnace shell 15 it
Between, then pass through heat air inlet 31 and concentrated on around fire box 11 again through sieve-board type air intake plate 32, so that temperature equalization;Fuel
The flue gas generated that burns enters in eight flue connecting tubes 12 from different location, then is delivered to flue gas by flue outlet pipe 121
In deduster 4, so that contained biggish dust particles fall in water and are removed in flue gas, lesser dust particles are by helping stream wind
Machine is handled through the discharge of sewage draining exit 43;In combustion, the waste heat that 2 surrounding of burner hearth generates can be recycled in real time in burner hearth 2,
So that quickly flowing, fuel combustion are more abundant for the fire in burner hearth 2;In addition, combustion fan intermittent can pass through spiral cooling wind
Pipe 61 cools down fire box 11, so that burner hearth 2 is not influenced by the high temperature of fire box 11, it is ensured that burner hearth 2 does not damage permanently, goes forward side by side
One step improves the thermal efficiency.The heat recovery rate of the present embodiment is up to 80%, if coal-fired, Chai Shi, so that Coal-fired capacity saves 30%, fires bavin amount
The features such as saving 40%, thoroughly realizing without dead angle, noncoking, few ashes.
The present embodiment work when, 20 DEG C or so can be heated per minute, maximum temperature up to 250 DEG C, and temperature-controlled precision be ±
0.2 DEG C, it is suitable for drying tealeaves, medicinal material, food, paddy etc., and regardless of selecting the fuel such as biomass or coal, diesel oil, all
High-efficiency environment friendly can be reached, the advantages that low-carbon low consumption is low in cost, long service life.