CN102563861B - Indirect straw hot blast heater - Google Patents

Indirect straw hot blast heater Download PDF

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Publication number
CN102563861B
CN102563861B CN201210039900.8A CN201210039900A CN102563861B CN 102563861 B CN102563861 B CN 102563861B CN 201210039900 A CN201210039900 A CN 201210039900A CN 102563861 B CN102563861 B CN 102563861B
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heat
hot
air
heat room
indirect
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CN102563861A (en
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王钰
李勇
袁省军
吕明辉
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WUXI JIUCHUAN MACHINERY EQUIPMENT CO Ltd
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WUXI JIUCHUAN MACHINERY EQUIPMENT CO Ltd
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Abstract

The invention relates to heat conduction equipment, and particularly discloses an indirect straw hot blast heater, which is used for indirectly realizing heat conduction and providing pure hot airflow for a grain dryer to dry grains and comprises a shell, an air preheating channel, an underframe, a hearth, a heat transfer chamber, a heat exchange chamber, a plurality of super-heat-conductivity pipes, a main flue, a smoke exhaust pipeline, a flue induced draft fan and a hot air induced draft fan. The heat transfer chamber is arranged on the upper portion of the hearth, a heat transfer chamber flow guide plate is disposed in the middle of the heat transfer chamber, a hot flue gas inlet of the heat transfer chamber is connected with a hot flue gas outlet of the hearth by the main flue, one end of the smoke exhaust pipeline is connected with a cold flue gas outlet, the other end of the smoke exhaust pipeline is connected with the flue induced draft fan, the heat exchange chamber is arranged on the heat transfer chamber, the super-heat-conductivity pipes are mounted on the heat exchange chamber, lower portions of the super-heat-conductivity pipes are directly inserted into the heat transfer chamber, the hot air induced draft fan is mounted at an outlet of a hot air channel, the air preheating channel is communicated with an air inlet hole, and the heat exchange chamber is communicated with the air preheating channel.

Description

Indirect straw hot blast heater
Technical field
What indirect straw hot blast heater of the present invention related to is a kind of heat transfer equipment, specifically, for heat conduction is indirectly provided, offers foodstuff drying device as the pure thermal current of drying grain.
Background technology
In existing application, indirect hot air stove adopts heat exchanger conventionally at present, and the soot amount of stalk is large, in long-time use procedure, can cause ash to be attached in heat exchange pipeline, finally causes pipeline breaking.And need the device of interpolation cyclone dedusting in addition, and actual dust removing effects is also barely satisfactory.When current indirect hot air stove is reinforced, cold air directly enters burner hearth, causes the hot blast temperature range of decrease of output larger, has influence on the utilization rate of heat transfer effect and heat energy, has extended the grain heat-drying time.
Summary of the invention
The object of the invention is, for appeal weak point, provides a kind of indirect straw hot blast heater, produces reliable and stable pure hot blast and dries grain to foodstuff drying device, can improve the utilization rate of heat, thereby can save again the device saving raw material of cyclone.
Indirect straw hot blast heater takes following technical scheme to realize:
Indirect straw hot blast heater comprises furnace shell, air preheat passage, underframe, burner hearth, Heat Room, heat-exchanging chamber, super heat-conductive pipe, flue collector, smoke discharging pipe, chimney meatus draught fan and hot-air draught fan.
Described furnace shell is arranged on underframe top, burner hearth is arranged on underframe, and Heat Room is arranged on upper furnace, and Heat Room middle part is provided with Heat Room deflector, Heat Room deflector has changed the flow direction of hot flue gas in Heat Room, has extended hot flue gas in the time of staying of Heat Room.On the Heat Room side plate of Heat Room deflector one side, be provided with hot smoke inlet, on the Heat Room side plate of Heat Room deflector opposite side, be provided with cold flue gas outlet.The hot smoke inlet of Heat Room is connected with the hot exhanst gas outlet of burner hearth by flue collector.One end of smoke discharging pipe is connected with cold flue gas outlet, and the other end of smoke discharging pipe is connected with chimney meatus draught fan.Described Heat Room bottom is provided with oblique shape base plate, is convenient to ash discharge.
On Heat Room top, be provided with heat-exchanging chamber, in heat-exchanging chamber, by thermal insulation board, some super heat-conductive pipes are installed, the bottom of super heat-conductive pipe is directly inserted in Heat Room, the top of super heat-conductive pipe is partly arranged in heat-exchanging chamber with fin, a side at heat-exchanging chamber is provided with hot-air channel, and the outlet of hot-air channel is provided with hot-air draught fan.
On the furnace shell of flue collector one side, be provided with fresh air inlet, be provided with air preheat passage between Heat Room side plate and furnace shell, air preheat passage is connected with fresh air inlet.Heat-exchanging chamber is connected with air preheat passage.
Described burner hearth both sides are provided with refractory brick, and roof of the furnace is provided with burner hearth thermal insulation board, and burner hearth bottom is provided with fire grate, and burner hearth outside is provided with fire door.
Both sides at Heat Room are provided with ash hole, and ash hole is equipped with ash discharge lid.
In furnace shell one side, dispose touch control cabinet, for controlling flue blower fan and hot-air draught fan work, and can monitor the hot blast temperature of sending.
Described super heat-conductive pipe is at least equipped with 50.
Described Heat Room bottom is provided with oblique shape base plate, is convenient to ash discharge.
Described chimney meatus draught fan adopts commercially available air-introduced machine.Hot-air draught fan adopts commercially available air-introduced machine.Described super heat-conductive pipe adopts commercially available finned heat pipe.
Operation principle
When indirect straw hot blast heater is used, stalk, rice husk, stalk piece are put into burner hearth ignition, then the control cabinet of configuration is set to the hot blast temperature that needs output, press again the start button on control cabinet, chimney meatus draught fan, hot-air draught fan is started working, the hot flue gas producing in burner hearth is introduced Heat Room by flue collector, through the super heat-conductive pipe in Heat Room, absorb again the heat of hot flue gas the inside, the super heat-conductive pipe top that is delivered to heat-exchanging chamber, chimney meatus draught fan is transported to outdoor by cold flue gas by smoke discharging pipe.Open ash discharge lid and can say that the cigarette ash in heat-exchanging chamber discharges by oblique shape base plate.Hot-air draught fan is incorporated into clean air in preheating channel by fresh air inlet, by the smoke discharging pipe in preheating channel, flue collector, burner hearth outside, Heat Room outside, undertaken after preheating, enter into heat-exchanging chamber, super heat-conductive pipe to the air after preheating in heat-exchanging chamber carries out further heat exchange, a large amount of heats is conducted to air, make air themperature reach 65 ℃-100 ℃ of setting values.By hot air duct, hot-air draught fan, be transported on foodstuff drying device, grain is carried out to drying and processing.
Indirect straw hot blast heater of the present invention is reasonable in design, and compact conformation is easy to use, quick heating, and service life of equipment is long, and volume is little, can utilize stalk, the rice husk of waste gas.Can export clean hot blast and be transported on foodstuff drying device, grain is carried out to drying and processing, the grain quality of oven dry is high, energy-conserving and environment-protective.The indirect straw hot blast heater thermal efficiency of the present invention is high, can reach more than 65~80%.
Accompanying drawing explanation
Below with reference to accompanying drawing, the present invention is further described:
Fig. 1 is indirect straw hot blast heater structural representation.
Fig. 2 is Fig. 1 indirect straw hot blast heater A-A cutaway view.
The specific embodiment
With reference to accompanying drawing 1-2, indirect straw hot blast heater comprises furnace shell 5, air preheat passage 9, underframe 1, burner hearth 3, Heat Room 8, heat-exchanging chamber 10, super heat-conductive pipe 11, flue collector 20, smoke discharging pipe 21, chimney meatus draught fan 19 and hot-air draught fan 14.
Described furnace shell 5 is arranged on underframe 1 top, burner hearth 3 is arranged on underframe 1, and Heat Room 8 is arranged on burner hearth 3 tops, and Heat Room 8 middle parts are provided with Heat Room deflector 7, Heat Room deflector 7 has changed the flow direction of hot flue gas in Heat Room 8, has extended hot flue gas in the time of staying of Heat Room 8.In the both sides of Heat Room 8, be provided with ash hole 6, ash hole 6 is equipped with ash discharge lid.On the Heat Room side plate 17 of Heat Room deflector 7 one sides, be provided with hot smoke inlet 26, on the Heat Room side plate 17 of Heat Room deflector 7 opposite sides, be provided with cold flue gas outlet 25.The hot smoke inlet 26 of Heat Room is connected with the hot exhanst gas outlet 23 of burner hearth by flue collector 20.One end of smoke discharging pipe 21 is connected with cold flue gas outlet 25, and the other end of smoke discharging pipe 21 is connected with chimney meatus draught fan 19.
On Heat Room 8 tops, be provided with heat-exchanging chamber 10, in heat-exchanging chamber 10, by thermal insulation board 13, some super heat-conductive pipes 11 are installed, the bottom 16 of super heat-conductive pipe 11 is directly inserted in Heat Room 8, super heat-conductive pipe top is arranged in heat-exchanging chamber 10 with fin 12 parts, a side at heat-exchanging chamber 10 is provided with hot-air channel 22, and hot-air channel outlet 15 is provided with hot-air draught fan 14.
On the furnace shell 5 of flue collector 20 1 sides, be provided with fresh air inlet 18, between Heat Room side plate 17 and furnace shell 5, be provided with air preheat passage 9, air preheat passage 9 is connected with fresh air inlet 18.Heat-exchanging chamber 10 is connected with air preheat passage 9.
Described burner hearth 3 both sides are provided with refractory brick 4, and burner hearth 3 tops are provided with burner hearth thermal insulation board 24, and burner hearth 3 bottoms are provided with fire grate 29, and burner hearth 3 outsides are provided with fire door 2.
In the both sides of Heat Room 8, be provided with ash hole 6, ash hole 6 is equipped with ash discharge lid.
Described Heat Room 8 bottoms are provided with oblique shape base plate 28, are convenient to ash discharge.
In furnace shell 5 one sides, dispose touch control cabinet 27, for controlling chimney meatus draught fan 19 and hot-air draught fan 14 work, and can monitor the hot blast temperature of sending.
Described chimney meatus draught fan 19 adopts commercially available air-introduced machine, and hot-air draught fan 14 adopts commercially available air-introduced machine.Described super heat-conductive pipe 11 adopts commercially available finned heat pipe.
Described super heat-conductive pipe 11 is at least equipped with 50.

Claims (7)

1. an indirect straw hot blast heater, is characterized in that: comprise furnace shell, air preheat passage, underframe, burner hearth, Heat Room, heat-exchanging chamber, super heat-conductive pipe, flue collector, smoke discharging pipe, chimney meatus draught fan and hot-air draught fan;
Described furnace shell is arranged on underframe top, burner hearth is arranged on underframe, Heat Room is arranged on upper furnace, Heat Room middle part is provided with Heat Room deflector, on the Heat Room side plate of Heat Room deflector one side, be provided with hot smoke inlet, on the Heat Room side plate of Heat Room deflector opposite side, be provided with cold flue gas outlet, the hot smoke inlet of Heat Room is connected with the hot exhanst gas outlet of burner hearth by flue collector, one end of smoke discharging pipe is connected with cold flue gas outlet, and the other end of smoke discharging pipe is connected with chimney meatus draught fan;
On Heat Room top, be provided with heat-exchanging chamber, in heat-exchanging chamber, by thermal insulation board, some super heat-conductive pipes are installed, the bottom of super heat-conductive pipe is directly inserted in Heat Room, the top of super heat-conductive pipe is partly arranged in heat-exchanging chamber with fin, a side at heat-exchanging chamber is provided with hot-air channel, and the outlet of hot-air channel is provided with hot-air draught fan;
On the furnace shell of flue collector one side, be provided with fresh air inlet, be provided with air preheat passage between Heat Room side plate and furnace shell, air preheat passage is connected with fresh air inlet, and heat-exchanging chamber is connected with air preheat passage.
2. indirect straw hot blast heater according to claim 1, is characterized in that: described burner hearth both sides are provided with refractory brick, and roof of the furnace is provided with burner hearth thermal insulation board, and burner hearth bottom is provided with fire grate, and burner hearth outside is provided with fire door.
3. indirect straw hot blast heater according to claim 1, is characterized in that: in furnace shell one side, dispose touch control cabinet, for controlling flue blower fan and hot-air draught fan work, and can monitor the hot blast temperature of sending.
4. indirect straw hot blast heater according to claim 1, is characterized in that: described super heat-conductive pipe adopts finned heat pipe.
5. indirect straw hot blast heater according to claim 1, is characterized in that: the both sides at Heat Room are provided with ash hole, and ash hole is equipped with ash discharge lid.
6. indirect straw hot blast heater according to claim 1, is characterized in that: described Heat Room bottom is provided with oblique shape base plate, is convenient to ash discharge.
7. indirect straw hot blast heater according to claim 1, is characterized in that: described super heat-conductive pipe is at least equipped with 50.
CN201210039900.8A 2012-02-22 2012-02-22 Indirect straw hot blast heater Active CN102563861B (en)

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Application Number Priority Date Filing Date Title
CN201210039900.8A CN102563861B (en) 2012-02-22 2012-02-22 Indirect straw hot blast heater

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CN102563861A CN102563861A (en) 2012-07-11
CN102563861B true CN102563861B (en) 2014-04-02

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103712337B (en) * 2014-01-26 2016-08-24 裴登明 A kind of biomass fuel hot air stove

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201233167Y (en) * 2008-06-13 2009-05-06 国家粮食储备局郑州科学研究设计院 Stalk combustion furnace
CN202485205U (en) * 2012-02-22 2012-10-10 无锡市久川机械设备有限公司 Indirect type straw air heating furnace

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201233167Y (en) * 2008-06-13 2009-05-06 国家粮食储备局郑州科学研究设计院 Stalk combustion furnace
CN202485205U (en) * 2012-02-22 2012-10-10 无锡市久川机械设备有限公司 Indirect type straw air heating furnace

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