CN201047710Y - Energy-saving clean hot air generator - Google Patents

Energy-saving clean hot air generator Download PDF

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Publication number
CN201047710Y
CN201047710Y CNU2007200899287U CN200720089928U CN201047710Y CN 201047710 Y CN201047710 Y CN 201047710Y CN U2007200899287 U CNU2007200899287 U CN U2007200899287U CN 200720089928 U CN200720089928 U CN 200720089928U CN 201047710 Y CN201047710 Y CN 201047710Y
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CN
China
Prior art keywords
heat exchanger
burner
main chamber
energy
clean hot
Prior art date
Application number
CNU2007200899287U
Other languages
Chinese (zh)
Inventor
王志兴
王振涛
杨长献
张金光
刘丰松
李长江
郭晋昌
Original Assignee
南阳市亚龙筑路机械制造有限公司
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Publication date
Application filed by 南阳市亚龙筑路机械制造有限公司 filed Critical 南阳市亚龙筑路机械制造有限公司
Priority to CNU2007200899287U priority Critical patent/CN201047710Y/en
Application granted granted Critical
Publication of CN201047710Y publication Critical patent/CN201047710Y/en

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Abstract

The utility model discloses an energy-saving clean hot-blast generating device belonging to the technical field of heating solid particle-shaped medium, which comprises a premix burner, a main firebox and a heat interchanger. The fire outlet of the premix burner and the main firebox is communicated and the heat interchanger is connected on the main firebox, wherein the premix burner relates to a pulverized coal burner and the heat interchanger relates to a pipeless indirect heating heat interchanger. Compared with the prior art, the utility model has the advantages of high burning efficiency, reliable work, production cost-saving, clean hot-blast, environmental exhaust, convenient operation and controlling, high heat interchanging efficiency, and being suitable for the drying of all solid particle-shaped materials.

Description

The energy-saving clean hot air generator

Technical field

The utility model belongs to the solid granular medium is carried out heating technique, is specifically related to a kind of energy-saving clean hot air generator.

Background technology

At present mostly the mode that provides formed high temperature gas flow of thermal source and material directly to contact by hot-blast stove is provided the used equipment of solid granular dry materials, and some to heat comparatively responsive or to the high material of dry air quality requirement as medicine, food service industry, the mode of this direct contact can not meet the demands.

Along with the rise of oil price, the use cost of warm air oil furnace is more and more high in recent years.General coal-fired hot-blast stove, technology is relatively backward, burning of coal efficient is low, hand labor intensity is big, and have an automatic coaling gear structure improved production cost greatly, and it is not too convenient to regulate control.

The utility model content

For overcoming the above-mentioned defective that prior art exists, the utility model purpose is to provide a kind of fuel replace oil with coal, the energy-saving clean hot air generator that efficiency of combustion height, reliable operation, saving cost, hot blast cleaning, discharging environmental protection, control operation are conveniently, heat exchanger effectiveness is high.

For realizing above-mentioned utility model purpose, the technical solution of the utility model is: this energy-saving clean hot air generator has premix burner, main chamber and heat exchanger, the premix burner crater is connected with main chamber, heat exchanger is connected on the main chamber, wherein: described premix burner is a coal burner, and described heat exchanger is a pipe free indirect heat exchanger.

Described pipe free indirect heat exchanger, has the exhaust gases passes that 3 horizontal directions are provided with, the final outlet end of exhaust gases passes has exhanst gas outlet, and the flue outside is provided with 3 around air duct, is provided with the abundant fin that is fixed on the flue outer wall in the air duct.Be provided with temperature sensor in heat exchanger, the output circuit of temperature sensor links to each other with the control circuit of coal burner.

The front end of described main chamber is provided with into burner, and there is exhanst gas outlet the rear end, advances burner and links to each other with the crater of premix burner, is provided with firebreak and dust-separation wall in main chamber, is provided with smoke passing port on firebreak top, is provided with a smoke passing port in the bottom of dust-separation wall.

Technique effect after the employing technique scheme is:

1. thermal efficiency height.

The fine particle of coal dust fully contacts with air, and burning is complete, the efficient height, and calorific intensity is big.Heat exchanger adopts the novel ventilated structure of cold air along outermost interlayer circumferencial direction uniform air intake, center interlayer output hot blast.Be provided with abundant fin in air duct, strengthen the heat-transfer effect of air side, heat exchanger outermost interlayer is a cold air channel, and the outer wall radiation loss is minimum.

2. reliable operation

The structure that hot air generator adopts premix burner, main chamber and heat exchanger to separate, combustion high temperature position and heat exchanger etc. separate, and have improved the bulk life time and the functional reliability of hot air generator, are convenient to transport, installation and maintenance.

3. save cost

Adopt the burning of coal dust suspension high effect, replace oil with coal has been saved production cost greatly.

4. hot blast cleaning, discharging environmental protection

High-temperature flue gas and air are respectively walked its road in heat exchanger, the output hot blast is pollution-free.Dust in flue gas and a small amount of slagging scorification, firebreak, dust-separation wall stop and the self gravitation effect under, major part is deposited in the firebreak position; Small part drops to bottom, gravitational dust collection chamber; The dust of trace, is absorbed by water after air-introduced machine and gas flue enter wet dust collector with flue gas, and the waste gas of compliance with environmental protection requirements enters in the atmosphere.

5. control automatically is easy to operate

Temperature sensor is housed on heat exchanger, utilizes the coal input quantity of the analog signal control Coal-disintegrating machine of temperature sensor output.Hot-air air-introduced machine cold wind valve can be opened under the control of temperature controller automatically, further reduces hot air temperature by the cold air that enters, and guarantees that hot air temperature controls within the range of permission all the time.

Below in conjunction with accompanying drawing concrete enforcement of the present utility model is described further.

Description of drawings

Fig. 1 is an energy-saving clean hot air generator structural representation.

The specific embodiment

The utility model energy-saving clean hot air generator has pre-burners 1, main chamber 3 and heat exchanger 9, the crater of pre-burners 1 is connected with main chamber 3, heat exchanger 9 is connected on the main chamber 3, heat exchanger 9 outputs are connected with the hot-air air-introduced machine, and secondary wet dust collector and heat exchanger outlet flue are connected in smoke induced draught fan.After lighting, coal dust enters fully burning in main chamber 3 in pre-burners 1, high-temperature flue gas enters in the heat exchanger 9, through extracting out by smoke induced draught fan after a plurality of round backhauls, enter the secondary wet dust collector, the waste gas that reaches environmental requirement after the dedusting enters in the atmosphere.And cold air is entered by the heat exchanger front end, behind a plurality of backhauls and high-temperature flue gas indirect heat exchange, supplies with drying equipment by the end face of heat exchanger 9 by hot-air duct.The wall of main chamber 3 is provided with the multiple layer refractory insulation material, is provided with into burner 2 at the front end of main chamber 3, and it is corresponding with the crater of pre-burners 1 to advance burner 2, and the main chamber rear end is provided with air outlet 8, and air outlet 8 links to each other with the heat exchanger 9 at rear portion.Be provided with firebreak 4 and dust-separation wall 7 in main chamber 3, the both sides of dust-separation wall 7 are gravity dirt pocket 6, are provided with smoke passing port 5 on firebreak 4 tops, are provided with smoke passing port 18 in the bottom of dust-separation wall 7, and smoke passing port 18 makes two indoor being connected of gravitational dust collection.Air inlet 2, smoke passing port 5, gravitational dust collection chamber 6, smoke passing port 18, outlet flue 8 form the S shape flue gas circulation road that is conducted in main chamber 3.Be provided with cleaning door 19 and cleaning door 20 in main chamber 3 both sides, be beneficial to the lime-ash after bug dusting is burnt.

Heat exchanger 9 adopts pipe free indirect heat exchanger, be provided with horizontal exhaust gases passes 10,11,12 in heat exchanger inside, 6 flue gas tube connectors 13,14 that radially are provided with are communicated with exhaust gases passes 10,11,12, exhanst gas outlet 15 is connected in smoke induced draught fan by pipeline, flue gas level in heat exchanger 9 comes and goes and flows, and discharges by exhanst gas outlet 15; The flue outer wall be provided with around cold air channel 16, be provided with the abundant fin 17 that is fixed on the gas flue outer wall in the cold air channel 16, carry out the heat exchange cooling; Be provided with temperature sensor in heat exchanger, the temperature-sensing element of the excellent sensor of temperature is positioned at the outlet air end of heat exchanger, and the output circuit of temperature sensor links to each other with the control circuit of Coal-disintegrating machine.

Claims (3)

1. energy-saving clean hot air generator, have premix burner, main chamber and heat exchanger, the premix burner crater is connected with main chamber, and heat exchanger is connected on the main chamber, be characterised in that: described premix burner is a coal burner, and described heat exchanger is a pipe free indirect heat exchanger.
2. energy-saving clean hot air generator according to claim 1, it is characterized in that: described pipe free indirect heat exchanger, has the exhaust gases passes that 3 horizontal directions are provided with, the final outlet end of exhaust gases passes has exhanst gas outlet, the flue outside is provided with 3 around air duct, be provided with the abundant fin that is fixed on the flue outer wall in the air duct, be provided with temperature sensor in heat exchanger, the temperature sensor output circuit links to each other with the control circuit of coal burner.
3. energy-saving clean hot air generator according to claim 1, it is characterized in that: the front end of described main chamber is provided with into burner, there is exhanst gas outlet the rear end, advancing burner links to each other with the crater of premix burner, in main chamber, be provided with firebreak and dust-separation wall, be provided with smoke passing port on firebreak top, be provided with a smoke passing port in the bottom of dust-separation wall.
CNU2007200899287U 2007-03-31 2007-03-31 Energy-saving clean hot air generator CN201047710Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200899287U CN201047710Y (en) 2007-03-31 2007-03-31 Energy-saving clean hot air generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200899287U CN201047710Y (en) 2007-03-31 2007-03-31 Energy-saving clean hot air generator

Publications (1)

Publication Number Publication Date
CN201047710Y true CN201047710Y (en) 2008-04-16

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Family Applications (1)

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CNU2007200899287U CN201047710Y (en) 2007-03-31 2007-03-31 Energy-saving clean hot air generator

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CN (1) CN201047710Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102494529A (en) * 2011-11-15 2012-06-13 天龙科技炉业(无锡)有限公司 Constant-temperature drying box utilizing flue gas waste heat for heating
CN103575086A (en) * 2012-08-10 2014-02-12 农业部规划设计研究院 Intelligent type straw fuel direct-discharge grain drying machine
CN103759514A (en) * 2014-01-21 2014-04-30 桂林市红星化工有限责任公司 Alum drying equipment and application thereof
CN106440749A (en) * 2016-08-31 2017-02-22 贵州省攀峰酒曲有限公司 Automatic constant-temperature distiller yeast roaster
CN108645025A (en) * 2018-05-14 2018-10-12 哈尔滨工业大学达通热能工程有限公司 Coal gas hot-blast stove

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102494529A (en) * 2011-11-15 2012-06-13 天龙科技炉业(无锡)有限公司 Constant-temperature drying box utilizing flue gas waste heat for heating
CN103575086A (en) * 2012-08-10 2014-02-12 农业部规划设计研究院 Intelligent type straw fuel direct-discharge grain drying machine
CN103759514A (en) * 2014-01-21 2014-04-30 桂林市红星化工有限责任公司 Alum drying equipment and application thereof
CN103759514B (en) * 2014-01-21 2016-08-17 桂林市红星化工有限责任公司 A kind of Alumen drying equipment and application thereof
CN106440749A (en) * 2016-08-31 2017-02-22 贵州省攀峰酒曲有限公司 Automatic constant-temperature distiller yeast roaster
CN108645025A (en) * 2018-05-14 2018-10-12 哈尔滨工业大学达通热能工程有限公司 Coal gas hot-blast stove
CN108645025B (en) * 2018-05-14 2020-10-16 哈尔滨工业大学达通热能工程有限公司 Gas hot-blast stove

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080416

Termination date: 20120331