CN204217769U - A kind of grain drying fluid bed heat wind system - Google Patents
A kind of grain drying fluid bed heat wind system Download PDFInfo
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- CN204217769U CN204217769U CN201420571923.8U CN201420571923U CN204217769U CN 204217769 U CN204217769 U CN 204217769U CN 201420571923 U CN201420571923 U CN 201420571923U CN 204217769 U CN204217769 U CN 204217769U
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- bed heat
- heat wind
- cyclone separator
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Abstract
The utility model belongs to Condition of Grain-Drying Technology field, specifically discloses a kind of grain drying fluid bed heat wind system.This system comprises fluid bed heat wind furnace, cyclone separator, tubular heat exchanger, air-introduced machine, air-heater and dryer, the top of fluid bed heat wind furnace is communicated with by flue gas aisle with the top of cyclone separator, the clean exhanst gas outlet of cyclone separator is connected with the tube side import of tubular heat exchanger, the tube side outlet of tubular heat exchanger is connected with air-introduced machine, the shell side import of tubular heat exchanger communicates with outside air, and shell-side outlet is connected with the air inlet of dryer through air-heater; Wherein, hearth wall and the bell of described fluid bed heat wind furnace are made by steel plate successively inner lining as thermal insulation material and refractory cement, the housing of described cyclone separator is made up of inner steel lining Wear-resistant, high-temperature resistant material, and the blast cap on the air distribution plate of fluid bed heat wind furnace is bell-jar and its surrounding offers air holes.The utility model is fuel with rice husk, meets " energy-saving and emission-reduction " state basic policy.
Description
Technical field
The utility model belongs to Condition of Grain-Drying Technology field, is specifically related to a kind of grain drying fluid bed heat wind system.
Background technology
The energy be the mankind depend on for existence and social development important substance basis, since reform and opening-up, Chinese national economy is with speed sustainable development faster, energy demand increases rapidly, China is faced with unprecedented Pressure on Energy, energy bottleneck makes the energy security of China and the Faced In Sustainable Development of national economy huge challenge, and country proposes the important state basic policy of " energy-saving and emission-reduction " for this reason.The enforcement of energy-saving and emission-reduction needs all trades and professions to make joint efforts, and with science and technology strength is particularly to rely on, and puts forth effort " energy-saving and emission-reduction " problem solving highly energy-consuming, high pollution industry.
Grain drying is the maximum power consumption link in grain storage and transportation field, is the energy-conservation object of emphasis in this field.The chain-type hot-blast stove of thermal source mainly based on fire coal of domestic grain drier, because fuel price is expensive, installation period is long, is unfavorable for promoting on a large scale in south, and therefore developing with rice husk be the thermal source of fuel is a kind of trend.Rice husk biomass energy is the one of new forms of energy.Rice husk can be solved with rice husk as fuel and deposit pollution problem, grain heat-drying cost can be reduced again, and mostly the rice husk hot-blast stove used in the market is to be improved by former coal-fired chain furnace, the problems such as ubiquity incomplete combustion, job insecurity, efficiency of combustion are low.There is easy coking, local rice husk destructive distillation phenomenon in existing rice husk suspension combustion stove.Fluidized bed combustion is the high-efficiency low-pollution clean-burning technology developed rapidly in recent ten years, is widely applied in station boiler, Industrial Boiler field.Therefore adopt fluid bed CFB combustion technology principle, the rice husk fluid bed heat wind system that exploitation is applicable to grain heat-drying field is a kind of development trend.
Utility model content
It take rice husk as the grain drying fluid bed heat wind system of fuel that the purpose of this utility model is to provide a kind of.
For achieving the above object, the technical scheme taked of the utility model is as follows:
A kind of grain drying fluid bed heat wind system, this system comprises fluid bed heat wind furnace, cyclone separator, tubular heat exchanger, air-introduced machine, air-heater and dryer, the top of fluid bed heat wind furnace is communicated with by flue gas aisle with the top of cyclone separator, the clean exhanst gas outlet of cyclone separator is connected with the tube side import of tubular heat exchanger, the tube side outlet of tubular heat exchanger is connected with air-introduced machine, the shell side import of tubular heat exchanger communicates with outside air, and shell-side outlet is connected with the air inlet of dryer through air-heater; Wherein, hearth wall and the bell of described fluid bed heat wind furnace are made by steel plate successively inner lining as thermal insulation material and refractory cement, the housing of described cyclone separator is made up of inner steel lining Wear-resistant, high-temperature resistant material, and the blast cap on the air distribution plate of fluid bed heat wind furnace is bell-jar and its surrounding offers air holes.
For strengthening insulation material and the bond strength between refractory cement and steel plate, on the steel plate of the hearth wall of fluid bed heat wind furnace, preferred distribution has pin.
The structure of described fluid bed heat wind furnace is specially: comprise hot-blast stove base, burner hearth, bell and air compartment, described burner hearth is divided into cylinder burner hearth and two sections, inverted cone burner hearth, hot-blast stove base top upwards successively with cylinder burner hearth, bell connects, be connected with inverted cone burner hearth and air compartment successively downwards, air distribution plate is provided with between inverted cone burner hearth and air compartment, air distribution plate is provided with several blast caps, slag tap is connected with bottom air distribution plate, slag tap runs through air compartment and extends out to air compartment outside, the sidewall of air compartment is provided with First air entrance, the bottom sidewall of cylinder burner hearth is from bottom to top provided with fuel inlet and Secondary Air entrance successively, bell top is provided with urgent exhaust opening.
The structure of described cyclone separator is specially: comprise separator base, housing and top cover, described housing is divided into cylinder housing and inverted cone housing two sections, separator base top is upwards connected with cylinder housing, top cover successively, be connected with inverted cone housing downwards, top cover is provided with clean exhanst gas outlet, and the bottom of inverted cone shell is provided with puts dirt mouth.
The utility model tool has the following advantages:
1, the fluid bed heat wind furnace in the utility model take rice husk as fuel, meets " energy-saving and emission-reduction " state basic policy.
2, the blast cap that air distribution plate adopts bell-jar, surrounding offers air holes, reduces Si Liao district, simultaneously adjustable air distribution plate resistance.
3, because rice husk ash particle in flue gas is harder, if flue gas flow direction is vertical with tubular heat exchanger, serious to washing away of tubular heat exchanger, and walk flue gas in the utility model employing pipe, flue gas flow direction is parallel with tubular heat exchanger, which reduces washing away of rice husk ash particle heat exchanger in flue gas, extend the service life of heat exchanger.
4, because fluid bed heat wind furnace chamber structure cross section is little, highly higher, can make that rice husk fugitive constituent is separated out rapidly, the rapid after-flame of fixed carbon preferably, overcome the drawback that grate-type efficiency of combustion is low.
5, in the utility model, the water-cooling wall of existing fluid bed heat wind furnace removes by fluid bed heat wind furnace, hearth wall inner lining as thermal insulation material and refractory cement, then adopt tubular heat exchanger to replace existing furnace wall cooling heat exchange mode, improve heat transfer effect, thus improve grain drying efficiency.
Accompanying drawing explanation
Fig. 1: the utility model grain drying structural representation of fluid bed heat wind system.
Fig. 2: the structure for amplifying schematic diagram of the fluid bed heat wind furnace in the utility model.
Fig. 3: the structure for amplifying schematic diagram of the cyclone separator in the utility model.
Detailed description of the invention
As Figure 1-3, a kind of grain drying fluid bed heat wind system, this system comprises fluid bed heat wind furnace I, cyclone separator II, tubular heat exchanger 21, air-introduced machine 22, air-heater 23 and dryer 24.
Wherein, the structure of described fluid bed heat wind furnace is specially: comprise hot-blast stove base 4, burner hearth 9, bell 19 and air compartment 6, described burner hearth 9 is divided into cylinder burner hearth and two sections, inverted cone burner hearth, hot-blast stove base 4 top upwards successively with cylinder burner hearth, bell 19 connects, be connected with inverted cone burner hearth and air compartment 6 successively downwards, air distribution plate 8 is provided with between inverted cone burner hearth and air compartment 6, air distribution plate 8 is provided with several blast caps 7, slag tap 3 is connected with bottom air distribution plate 8, slag tap 3 runs through air compartment 6 and extends out to air compartment 6 outside, the sidewall of air compartment 6 is provided with First air entrance 5, the bottom sidewall of cylinder burner hearth is from bottom to top provided with fuel inlet 2 and Secondary Air entrance 1 successively, bell 19 top is provided with urgent exhaust opening 12.
The structure of described cyclone separator is specially: comprise separator base 18, housing 15 and top cover 20, described housing is divided into cylinder housing and inverted cone housing two sections, separator base 18 top is upwards connected with cylinder housing, top cover 20 successively, be connected with inverted cone housing downwards, top cover 20 is provided with clean exhanst gas outlet 14, and the bottom of inverted cone shell is provided with puts dirt mouth 17.
The top of fluid bed heat wind furnace I is communicated with by flue gas aisle 13 with the top of cyclone separator II, the clean exhanst gas outlet 14 of cyclone separator II is connected with the tube side import of tubular heat exchanger 21, the tube side outlet of tubular heat exchanger 21 is connected with air-introduced machine 22, the shell side import of tubular heat exchanger 21 communicates with outside air A, and shell-side outlet is connected through the air inlet of air-heater 23 with dryer 24; Wherein, hearth wall and the bell 19 of described fluid bed heat wind furnace I are made by steel plate successively inner lining as thermal insulation material 11 and refractory cement 10, intensive pin on the steel plate of hearth wall, the housing of described cyclone separator II is made up of inner steel lining Wear-resistant, high-temperature resistant material 16, and blast cap on the air distribution plate 8 of fluid bed heat wind furnace I 7 is for bell-jar and its surrounding offers air holes.
The course of work: fuel rice husk sends into burner hearth 9 by feeding system through fuel inlet 2, burning required air is supplied by First air entrance 5 and Secondary Air entrance 1 respectively, rice husk and air be blending burning under fluidisation state in burner hearth 9, the flue gas carrying a large amount of recycle stock in burner hearth 9 enters cyclone separator II through flue gas aisle 13, the clean flue gas obtained after separation enters tubular heat exchanger 21 through clean exhanst gas outlet 14, with outside air A, heat exchange occurs, after heat exchange, flue gas discharges through air-introduced machine 22, outside air after heating then sends into dryer 24 through air-heater 23, the raw grain B got off in heating, drying machine 24 top, raw grain B is dried, last solid food C by dryer 24 bottom out.
Claims (4)
1. a grain drying fluid bed heat wind system, it is characterized in that: this system comprises fluid bed heat wind furnace, cyclone separator, tubular heat exchanger, air-introduced machine, air-heater and dryer, the top of fluid bed heat wind furnace is communicated with by flue gas aisle with the top of cyclone separator, the clean exhanst gas outlet of cyclone separator is connected with the tube side import of tubular heat exchanger, the tube side outlet of tubular heat exchanger is connected with air-introduced machine, the shell side import of tubular heat exchanger communicates with outside air, and shell-side outlet is connected with the air inlet of dryer through air-heater; Wherein, hearth wall and the bell of described fluid bed heat wind furnace are made by steel plate successively inner lining as thermal insulation material and refractory cement, the housing of described cyclone separator is made up of inner steel lining Wear-resistant, high-temperature resistant material, and the blast cap on the air distribution plate of fluid bed heat wind furnace is bell-jar and its surrounding offers air holes.
2. grain drying fluid bed heat wind system as claimed in claim 1, is characterized in that: the steel plate of the hearth wall of fluid bed heat wind furnace is distributed with pin.
3. grain drying fluid bed heat wind system as claimed in claim 1, it is characterized in that the structure of described fluid bed heat wind furnace is specially: comprise hot-blast stove base, burner hearth, bell and air compartment, described burner hearth is divided into cylinder burner hearth and two sections, inverted cone burner hearth, hot-blast stove base top upwards successively with cylinder burner hearth, bell connects, be connected with inverted cone burner hearth and air compartment successively downwards, air distribution plate is provided with between inverted cone burner hearth and air compartment, air distribution plate is provided with several blast caps, slag tap is connected with bottom air distribution plate, slag tap runs through air compartment and extends out to air compartment outside, the sidewall of air compartment is provided with First air entrance, the bottom sidewall of cylinder burner hearth is from bottom to top provided with fuel inlet and Secondary Air entrance successively, bell top is provided with urgent exhaust opening.
4. grain drying fluid bed heat wind system as claimed in claim 1, it is characterized in that the structure of described cyclone separator is specially: comprise separator base, housing and top cover, described housing is divided into cylinder housing and inverted cone housing two sections, separator base top is upwards connected with cylinder housing, top cover successively, be connected with inverted cone housing downwards, top cover is provided with clean exhanst gas outlet, and the bottom of inverted cone shell is provided with puts dirt mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420571923.8U CN204217769U (en) | 2014-09-30 | 2014-09-30 | A kind of grain drying fluid bed heat wind system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420571923.8U CN204217769U (en) | 2014-09-30 | 2014-09-30 | A kind of grain drying fluid bed heat wind system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204217769U true CN204217769U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420571923.8U Expired - Fee Related CN204217769U (en) | 2014-09-30 | 2014-09-30 | A kind of grain drying fluid bed heat wind system |
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| CN (1) | CN204217769U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105028627A (en) * | 2015-06-11 | 2015-11-11 | 辽宁省粮食科学研究所 | Solid electric heat accumulation cereal drying oven |
| CN106524498A (en) * | 2016-11-14 | 2017-03-22 | 杨朴 | Rice husk boiling hot blast stove |
-
2014
- 2014-09-30 CN CN201420571923.8U patent/CN204217769U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105028627A (en) * | 2015-06-11 | 2015-11-11 | 辽宁省粮食科学研究所 | Solid electric heat accumulation cereal drying oven |
| CN106524498A (en) * | 2016-11-14 | 2017-03-22 | 杨朴 | Rice husk boiling hot blast stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180628 Address after: No. 153, Nanyang Road, Hui Ji District, Zhengzhou, Henan Patentee after: COFCO RESEARCH & ENGINEERING (ZHENGZHOU) CO.,LTD. Address before: 450053 No. 153, Nanyang Road, Zhengzhou, Henan Patentee before: COFCO ENGINEERING & TECHNOLOGY (ZHENGZHOU) Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 |