CN203908001U - Biomass fuel hot-air boiler - Google Patents

Biomass fuel hot-air boiler Download PDF

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Publication number
CN203908001U
CN203908001U CN201420282206.3U CN201420282206U CN203908001U CN 203908001 U CN203908001 U CN 203908001U CN 201420282206 U CN201420282206 U CN 201420282206U CN 203908001 U CN203908001 U CN 203908001U
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CN
China
Prior art keywords
heat exchange
hot
air
fuel
boiler
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420282206.3U
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Chinese (zh)
Inventor
李鲁信
张平
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Beijing Nanhua new energy Polytron Technologies Inc
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李鲁信
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Publication date
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Priority to CN201420282206.3U priority Critical patent/CN203908001U/en
Application granted granted Critical
Publication of CN203908001U publication Critical patent/CN203908001U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a biomass fuel hot-air boiler, and belongs to the field of hot-air boilers. The biomass fuel hot-air boiler comprises a fuel feeding device and a hot-air heat exchange device, a two-stage feeding system is arranged on the fuel feeding device, the hot-air heat exchange device comprises a fuel combustor and a hot-air heat exchange chamber, an air distribution assembly is arranged in the fuel combustor, a plurality of heat exchange tube nests are arranged in the hot-air heat exchange chamber, baffles are arranged between the heat exchange tube nests, a smoke return trip is an up-and-down reentry channel, ash removing openings are formed in the lower ends of the positions between the heat exchange tube nests, the hot-air temperature in hot-air tubes is greatly increased, the heating effect of the fuel is played to the maximum degree, the fuel is saved, and the operation cost of the boiler is reduced to a certain degree.

Description

A kind of biomass fuel hot air boiler
Technical field
The utility model relates to a kind of hot-blast stove, and particularly a kind of biomass fuel hot air boiler, belongs to hot air boiler field.
Background technology
Chemical industry, manufacturing baking vanish, the dyeing of textile industry is dry, the sand core drying of casting industry, the product drying of Abrasive Industry, the oven dry of construction material, the aspects such as the food baking of food-processing industry are particularly dried in the deep processing of agricultural byproducts all can be with using heated-air drying, this hot blast is after adopting hot-blast stove car to wind heating, to deliver to job shop to use, in equipment in the past, to use taking the hot air boiler as dyestuff not mostly, along with the quickening of China's process of industrialization in recent years, enterprise increases, emission pollution problem is more and more serious, eliminating some pollutes large, the coal-burning boiler falling behind, or be forced to close because pollute large, some enterprise, the performance of enterprises is fine, the pollution because of boiler having, have to suspend the practicality of boiler, and stop the use of boiler, for some enterprises, if there is no heat air source, just mean the stopping production of enterprise, for this reason, be badly in need of one and neither can cause environmental pollution, there is the feature of environmental protection hot air boiler that can ensure that enterprise produces.
Summary of the invention
Be badly in need of low pollution environment-friendly type hot air boiler for enterprise, the utility model provides a kind of biomass fuel hot air boiler, its objective is the soot emissions that reduce boiler, improves environmental quality, the production of maintaining enterprise.
The technical scheme that the utility model adopts is: a kind of biomass fuel hot air boiler, comprise fuel supply system and hot-blast heat exchange device, described fuel supply system is provided with two-stage charging system, described hot-blast heat exchange device comprises and is positioned at the fuel combustion chamber of bottom and the hot blast Heat Room on top, in described combustion chamber, be provided with burning air distribution assembly, one end of combustion chamber connects fuel supply system, other end top is provided with the stack extension with hot blast Heat Room UNICOM, combustion product gases enters hot blast Heat Room by stack extension, in hot blast Heat Room, be disposed with multiple heat exchange nest of tubes, in the heat exchange airduct of hot blast in heat exchange nest of tubes, flow, between heat exchange nest of tubes, be provided with baffle plate, flue gas is successively by discharging from smokestack after each heat exchange nest of tubes, the flue gas backhaul that described each heat exchange nest of tubes forms is upper and lower reentrant pathway, lower end between heat exchange nest of tubes baffle plate is provided with cleaning door, described smokestack is arranged at boiler top, the air inlet of heat exchange wind and air outlet are arranged at respectively the both sides of boiler, described two-stage charging system is made up of the upper and lower two-layer self-conveyor feed being arranged in parallel, described burning air distribution assembly is arranged on furnace bottom, described air distribution device comprises two-layer up and down, every layer is at least provided with two aid distributing pipes, on every aid distributing pipe, be provided with multiple blowhole, described burning air distribution assembly arrange with feeding device under at furnace bottom, furnace bottom is provided with depressed part, described burning air distribution assembly is provided with two-layer, lower floor's aid distributing pipe is arranged in depressed part, on every aid distributing pipe, be provided with multiple blowhole.
The good effect that this utility model has is: because fuel supply system is provided with two-stage charging system, and utilization is screw feeder, prevent the same obstruction of feed, ensure the stable supplying of fuel, be provided with double-deck air distribution assembly at furnace bottom, enough burning oxygen can be provided, and fuel can be blown afloat, can make volatile matter be fully burned, in addition, because being provided with multiple baffle plates in hot blast Heat Room, can make flue gas multiple backhauls of turning back up and down, lengthen flow of flue gas distance, can make airduct absorb as much as possible the heat in flue gas, improve higher the hot blast temperature in airduct, bring into play to greatest extent the heat effect of fuel, simultaneously, the flue dust containing in flue gas can be stopped and drop on the passage that is provided with cleaning door, be convenient to cleaning, the cleannes of exhaust are ensured, safeguard the clean of living environment, because the heat exchanger tube quantity in each heat exchange nest of tubes in heat exchange pipeline is more, comparatively speaking, can absorb more heat, in identical fuel, can absorb more heat, save fuel, reduce to a certain extent boiler operatiopn cost.
Brief description of the drawings
Side generalized section in Fig. 1 the utility model.
Fig. 2 section generalized section of the present utility model.
Fig. 3 top cross-sectional view of the present utility model.
Detailed description of the invention
In order better to understand and to carry out the technical solution of the utility model, provide embodiment more of the present utility model at this, these embodiments, in order better to explain technical scheme described in the utility model, do not form any form restriction of the present utility model.
Referring to Fig. 1, Fig. 2, Fig. 3 is elaborated with regard to the technical solution of the utility model, wherein, 1: feed bin, 2a: reductor one, 2b: reductor two, 3a: screw feeding cylinder one, 3b: screw feeding cylinder two, 3c: connect up and down cylinder, 4: top aid distributing pipe, 5a: aid distributing pipe one, 5b: aid distributing pipe two, 6a: Kong Yi, 6b: hole two, 7: refractory slab, 8: burner hearth, 8a: burner hearth lid, 9a: stack extension, 9b: smokestack, 10a: passage one, 10b: passage two, 10c: passage three, 11a: lower baffle plate one, 11b: lower baffle plate two, 12a: overhead gage one, 12b: overhead gage two, 13c: overhead gage three, 14a: cleaning door one, 14b: cleaning door two, 14c: cleaning door three, 15: baffle plate limit pipe, 16: airduct, 16a: nest of tubes one, 16b: nest of tubes two, 16c: nest of tubes three, 17: insulation material, 18a: collector one, 18b: collector two.
First granular biomass solid fuel is joined feed bin from the charge door 1 of feed bin 1, in feed bin 1, in the parallel self-conveyor feed of top-down two-stage, what be arranged in parallel is upper, lower self-conveyor feed is respectively under motor drives, utilize reductor one 2a and reductor two 2b to slow down, described parallel one, screw feeding cylinder one 3a of deuterostrophies charger, between screw feeding cylinder two 3b, utilize and connect up and down a 3c connection, granular fuel can be delivered to casing drum two 3b from screw feeding cylinder one 3a, enter the fuel of casing drum two 3b under the promotion of helical blade, fuel is sent in burner hearth 8, below feeding port, be provided with igniter, by ignited fuel, for fuel is fully burned, be unlikely to be deposited in together, below the charging aperture of combustion chamber, be provided with two-layer aid distributing pipe, that is: upper strata aid distributing pipe one 5a and lower floor's aid distributing pipe two 5b, upper strata aid distributing pipe and lower floor's aid distributing pipe have respectively two aid distributing pipes at least, be provided with multiple blowhole at the periphery of aid distributing pipe, Kong Weikong mono-6a on the blast pipe of upper strata, on lower floor's blast pipe is 6b, lower floor's aid distributing pipe is arranged on the depressed part of refractory brick, described wind distributing hole is at least provided with hole upward, by wind direction blowing up, fuel and flame are upwards erupted, fuel can not make fuel stack be added together and can not get sufficient burning like this, for fuel is distributed uniformly in whole combustion chamber, at least be provided with two top aid distributing pipes 4 on charge door top, this top aid distributing pipe 4 is provided with blowhole at least in the horizontal direction, make wind direction consistent with reinforced direction, and the length of top aid distributing pipe 4 is shorter than upper strata aid distributing pipe one 5a and lower floor's aid distributing pipe two 5b length, flue gas blows to hot flue gas near the burner hearth lid 8a on charge door opposite by burner hearth 8, in this process, flame and flue gas heat the refractory slab 7 of upper furnace setting, after refractory slab 7 heating, utilize radiation to heat the heat exchange tracheae nest of tubes arranging above, if while containing too much carbon in flue gas, can make flue gas again burn, the stack extension 9a that flue gas in burner hearth arranges from burner hearth lid 8a top enters in the hot-blast heat exchange device of top setting.
Biomass fuel hot air boiler is provided with multiple heat exchange airduct nest of tubes, in the utility model, be provided with nest of tubes one 16a, nest of tubes two 16b, tri-groups of nest of tubes three 16c, between each heat exchange airduct nest of tubes, be provided with certain distance, in order to make the passage that between airduct nest of tubes, formation is turned back up and down, between each nest of tubes, be provided with certain interval, and the baffle plate of certain altitude is set in the bottom of near the hot-blast heat exchange device top near nest of tubes and hot-blast heat exchange device, in the technical solution of the utility model, the baffle plate that is arranged on hot-blast heat exchange device bottom is lower baffle plate one 11a, lower baffle plate two 11b, the baffle plate that is arranged on hot-blast heat exchange device top is overhead gage one 12a, overhead gage two 12b, overhead gage three 13c, so, flue gas after the burning of bottom, from inner flue enters top, between each airduct nest of tubes, several passages are formed, they are respectively passage one 10a, passage two 10b, passage three 10c, the both sides of described passage are provided with cleaning door, be provided with in the present embodiment cleaning door one 14a, cleaning door two 14b, cleaning door three 14c, in order to make can to fall along the flue dust of each baffle plate, connected baffle plate limit pipe 15 in the end of described each baffle plate, flue dust can be dropped at passage, be conducive to like this from each cleaning door, flue dust be cleared up, have between the baffle plate of certain altitude and airduct nest of tubes and formed the smoke gas flow circulation passage of turning back up and down, flue gas is finally from smokestack 9b gets rid of stove, owing to being provided with multiple baffle plates and level smoke gas flow circulation passage in this hot-blast heat exchange device, the quantity of each heat exchanger tube nest of tubes is more, can make the heat in flue gas absorb as much as possible, also can make the large as far as possible raising of air themperature in warm-air pipe, can reduce like this consumption of fuel, thereby can reduce operating cost, through the flue gas of repeatedly turning back up and down, after baffle plate, flue dust can be fallen on passage, can clear up very easily, simultaneously, also can make the flue dust in exhaust be reduced to minimum, prevent the pollution of environment, guarantee the cleaning of air.
With reference to Fig. 2, described heat exchange airduct nest of tubes has an air inlet 16aige air outlet 16b, in order the wind of coming in can be divided into multiple airduct nest of tubes or airduct nest of tubes to be collected as to a discharge pipe, be provided with respectively collector one 18a and collector two 18b at air inlet 16a, air outlet 16b place.
In order to make heat keep within the specific limits, prevent too fast heat radiation, utilize insulation material 13 to carry out insulation at the periphery of nest of tubes, same, be provided with refractory slab 7 in the inside of burner, outside at body of heater 17 is also provided with insulation material 17, further reduce distributing of heat, can utilize less fuel, brought into play larger heat, and can be transformed into greatest extent in the air of airduct 16 inside, for industrial production plays a role.
After describing above various specific embodiment of the present utility model in detail, those of ordinary skill in the art should be well understood to, according to the various common practise of this area, can carry out various equivalent variations, be equal to and replace or simply amendment according to thinking of the present utility model, these all should belong to the scope of technical solutions of the utility model.

Claims (5)

1. a biomass fuel hot air boiler, comprise fuel supply system and hot-blast heat exchange device, it is characterized in that: described fuel supply system is provided with two-stage charging system, described hot-blast heat exchange device comprises and is positioned at the fuel combustion chamber of bottom and the hot blast Heat Room on top, in described combustion chamber, be provided with burning air distribution assembly, one end of combustion chamber connects fuel supply system, other end top is provided with the stack extension with hot blast Heat Room UNICOM, combustion product gases enters hot blast Heat Room by stack extension, in hot blast Heat Room, be disposed with multiple heat exchange nest of tubes, in the heat exchange airduct of hot blast in heat exchange nest of tubes, flow, between heat exchange nest of tubes, be provided with baffle plate, flue gas is successively by discharging from smokestack after each heat exchange nest of tubes, the flue gas backhaul that described each heat exchange nest of tubes forms is upper and lower reentrant pathway, lower end between heat exchange nest of tubes baffle plate is provided with cleaning door.
2. a kind of biomass fuel hot air boiler according to claim 1, is characterized in that: described smokestack is arranged at boiler top, and the air inlet of heat exchange wind and air outlet are arranged at respectively the both sides of boiler.
3. a kind of biomass fuel hot air boiler according to claim 1, is characterized in that: described two-stage charging system is made up of the upper and lower two-layer self-conveyor feed being arranged in parallel.
4. a kind of biomass fuel hot air boiler according to claim 1, it is characterized in that: described burning air distribution assembly is arranged on furnace bottom, described air distribution device comprises two-layer up and down, and every layer is at least provided with two aid distributing pipes, is provided with multiple blowhole on every aid distributing pipe.
5. a kind of biomass fuel hot air boiler according to claim 4, it is characterized in that: described burning air distribution assembly arrange with feeding device under at furnace bottom, furnace bottom is provided with depressed part, described burning air distribution assembly is provided with two-layer, lower floor's aid distributing pipe is arranged in depressed part, is provided with multiple blowhole on every aid distributing pipe.
CN201420282206.3U 2014-05-30 2014-05-30 Biomass fuel hot-air boiler Expired - Fee Related CN203908001U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420282206.3U CN203908001U (en) 2014-05-30 2014-05-30 Biomass fuel hot-air boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420282206.3U CN203908001U (en) 2014-05-30 2014-05-30 Biomass fuel hot-air boiler

Publications (1)

Publication Number Publication Date
CN203908001U true CN203908001U (en) 2014-10-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420282206.3U Expired - Fee Related CN203908001U (en) 2014-05-30 2014-05-30 Biomass fuel hot-air boiler

Country Status (1)

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CN (1) CN203908001U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107764072A (en) * 2017-09-30 2018-03-06 宜兴市海科耐火材料制品有限公司 A kind of Heat Room type energy-saving type shuttle type kiln

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107764072A (en) * 2017-09-30 2018-03-06 宜兴市海科耐火材料制品有限公司 A kind of Heat Room type energy-saving type shuttle type kiln

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GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20180605

Address after: 062550 the northwest side of Wang Wang Village, Yu village, Renqiu, Cangzhou, Hebei

Patentee after: Beijing Nanhua new energy Polytron Technologies Inc

Address before: 455000 Friendship Road in Anyang City, Henan Province

Patentee before: Li Luxin

Effective date of registration: 20180605

Address after: 062550 the northwest side of Wang Wang Village, Yu village, Renqiu, Cangzhou, Hebei

Patentee after: Beijing Nanhua new energy Polytron Technologies Inc

Address before: 455000 Friendship Road in Anyang City, Henan Province

Patentee before: Li Luxin

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141029

Termination date: 20200530

CF01 Termination of patent right due to non-payment of annual fee