A kind of Power Generation by BF Gas combustion apparatus
Technical field
The present invention relates to a kind of ironmaking technology field, specially a kind of Power Generation by BF Gas combustion apparatus.
Background technique
Blast furnace gas is the fuel gas of by-product in blast furnace ironmaking production process, main component CO, CO2, N2, H2, CH4
Deng if untreated with regard to direct emission, not only polluting the environment, also result in the waste of resource, in order to improve the benefit of resource
With rate, the call of national energy conservation and emission reduction is responded, many steel plant start with combustion apparatus and generate electricity to blast furnace gas, existing
Combustion apparatus majority structure it is simple, do not account for the lower feature of blast furnace gas calorific value, burning time is long, and generated energy is low,
Production cost is higher, in addition, the flue gas that most of combustion apparatus does not also generate burning is utilized and is handled, it is not only energy saving
Effect is poor, is also easy to cause secondary pollution.
Therefore, it is necessary to design a kind of Power Generation by BF Gas combustion apparatus to solve problems.
Summary of the invention
The purpose of the present invention is to provide a kind of Power Generation by BF Gas combustion apparatus, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the present invention provides the following technical solutions:A kind of Power Generation by BF Gas combustion apparatus, including set
Standby ontology, blast furnace, blast furnace gas delivery pipe, gravitational precipitator, first class purification gas conveying tube, cyclone dust collectors, secondary purification
Gas conveying tube, bag filter, clean gas main, the first branch pipe, reducer unit, clean coal gas hold-up tank, the second branch pipe,
Steam pipeline, steam turbine, generator, steam output pipe, condenser, condensate pipe, water pump, return pipe, burn pot, stabilizer blade,
Programmable controller, igniter, gas entry, combustion air inlet, smoke extracting tube, filter, water supplement port, refluxing opening, steaming
Vapor outlet, combustion chamber, vaporium, interlayer, gas mixer chamber, exhanst gas outlet, exhaust fan, the first filter screen, the second filter screen, row
Dirt mouth, inclined plate, baffle, uniform gas board and through-hole, the top of the blast furnace are fixedly connected with the blast furnace gas delivery pipe, the height
One end of producer gas delivery pipe is equipped with the gravitational precipitator, and one end of the gravitational precipitator is fixedly connected with the level-one
Gas conveying tube is purified, one end of the first class purification gas conveying tube is equipped with the cyclone dust collectors, the cyclone dust removal
The top of device is fixedly connected with the secondary purification gas conveying tube, and one end installation of the secondary purification gas conveying tube is
Bag filter is stated, one end of the bag filter is fixedly connected with the clean gas main, the clean gas main
Top be provided with first branch pipe, the reducer unit is installed in the middle part of first branch pipe, first branch pipe
One end is equipped with the clean coal gas hold-up tank, and the bottom end of the clean gas main is provided with second branch pipe, and described
One end of two branch pipes is equipped with the apparatus body, and the burn pot, the burn pot are provided at the top of the apparatus body
Front the programmable controller is installed, the interlayer is provided on the inside of the burn pot, on the left of the interlayer
Top the smoke extracting tube is installed, the bottom end of the smoke extracting tube is equipped with the filter, the top of the filter interior
First filter screen is installed, the bottom side of first filter screen is provided with the dust-exhausting port, the bottom of first filter screen
Portion is equipped with second filter screen, and the bottom of second filter screen is equipped with the exhaust fan, inside the burn pot
Bottom is provided with the combustion chamber, and the bottom end of the combustion chamber is provided with the gas mixer chamber, the top of the gas mixer chamber
End is equipped with the uniform gas board, and the two sides of the gas mixing chamber interior are equipped with the baffle, the gas mixer chamber bottom end
Middle part be provided with the gas entry, the two sides of the gas entry are provided with the combustion air inlet, the combustion chamber
The two sides at middle part are equipped with the igniter, and the top of the combustion chamber two sides is provided with the exhanst gas outlet, the combustion chamber
Top be provided with the vaporium, the top on the left of the vaporium is provided with the water supplement port, on the right side of the vaporium
Top is provided with the refluxing opening, and the top of the vaporium is provided with the steam (vapor) outlet, and one end of the steam (vapor) outlet is solid
Surely it is connected with the steam pipeline, one end of the steam pipeline is equipped with the steam turbine, the side of the steam turbine
The generator is installed, the bottom end of the steam turbine is fixedly connected with the steam output pipe, the bottom of the steam output pipe
End is equipped with the condenser, and the bottom end of the condenser is fixedly connected with the condensate pipe, one end of the condensate pipe
The water pump is installed, one end of the water pump is fixedly connected with the return pipe, and the bottom of the burn pot is equipped with described
Stabilizer blade.
Further, the programmable controller is electrically connected the igniter and the exhaust fan.
Further, the water pump is fixedly connected with the refluxing opening by the return pipe.
Further, insulating layer is provided on the outside of the interlayer.
Further, the overall structure of the gas mixer chamber designs for inverted round stage.
Further, it is used cooperatively between first filter screen and second filter screen.
Further, the bottom end of first filter screen is provided with inclined plate.
Further, spaced design between the adjacent baffle.
Further, the surface of the uniform gas board offers several through-holes.
Compared with prior art, the beneficial effects of the invention are as follows:This kind of Power Generation by BF Gas combustion apparatus, the top of blast furnace
It is fixedly connected with blast furnace gas delivery pipe, one end of blast furnace gas delivery pipe is equipped with gravitational precipitator, and the one of gravitational precipitator
End is fixedly connected with first class purification gas conveying tube, and one end of first class purification gas conveying tube is equipped with cyclone dust collectors, whirlwind
The top of deduster is fixedly connected with secondary purification gas conveying tube, and one end of secondary purification gas conveying tube is equipped with cloth bag and removes
Dirt device is used cooperatively between gravitational precipitator, cyclone dust collectors and bag filter, and triple Depurative designs ensure that blast furnace coal
The cleanliness of gas also improves the utilization rate to blast furnace gas while facilitating subsequent combustion, expands its use scope;
One end of bag filter is fixedly connected with clean gas main, and the top of clean gas main is provided with the first branch pipe, and first
Reducer unit is installed, one end of the first branch pipe is equipped with clean coal gas hold-up tank, the bottom of clean gas main in the middle part of branch pipe
End is provided with the second branch pipe, and one end of the second branch pipe is equipped with apparatus body, and burn pot is provided at the top of apparatus body, burns
The front of tank is equipped with programmable controller, and interlayer is provided on the inside of burn pot, is provided with insulating layer on the outside of interlayer,
Structure is simple, is avoiding heat loss, while raising to gas-fired generation flue gas utilization rate, also prevents outside apparatus body
Portion's temperature is excessively high, improves its safety used, extends its service life;Top on the left of interlayer is equipped with smoke extracting tube,
The bottom end of smoke extracting tube is equipped with filter, and the top of filter interior is equipped with the first filter screen, and the bottom end of the first filter screen is set
It is equipped with inclined plate, it is simple and practical, it falls convenient for accelerating dust, reduces later period cleaning frequency, improve the practicability of filter;The
The bottom side of one filter screen is provided with dust-exhausting port, and the bottom of the first filter screen is equipped with the second filter screen, the first filter screen and second
It is used cooperatively between filter screen, the two cooperates, and the flue gas that can be generated to gas-fired is sufficiently filtered, practical height
Effect, avoids secondary pollution;The bottom of second filter screen is equipped with exhaust fan, and combuster is arranged in the bottom inside burn pot,
The bottom end of combustion chamber is provided with gas mixer chamber, and the overall structure of gas mixer chamber designs for inverted round stage, volume from bottom to top by
It is cumulative big, the air inflow of mixed gas can be increased, guarantee that gas supply is sufficient, improve the agility of igniter fire;Gas is mixed
The top for closing room is equipped with uniform gas board, and the surface of uniform gas board offers several through-holes, rationally distributed, is evenly distributed, and is convenient for gas
Body uniformly flows out, and improves the stability of gas burning, enhances the combustion efficiency of combustion chamber;The two sides of gas mixing chamber interior
Baffle, spaced design between adjacent screen are installed, baffle can play certain barrier effect to coal gas and combustion air, subtract
The phenomenon that they small flowing velocity, avoid the occurrence of causes the duration of ignition long because of gas mixing unevenness, combustion instability, letter
It is single practical, burning time is being saved, while strengthen burning effect, the working efficiency of apparatus body is being also improved, reduces combustion
Firing is originally;Gas entry is provided in the middle part of gas mixer chamber bottom end, the two sides of gas entry are provided with combustion air inlet, combustion
It burns the two sides in the middle part of room and igniter is installed, the top of combustion chamber two sides is provided with exhanst gas outlet, is provided at the top of combustion chamber
Vaporium, the top on the left of vaporium are provided with water supplement port, and the top on the right side of vaporium is provided with refluxing opening, the top of vaporium
It is provided with steam (vapor) outlet, one end of steam (vapor) outlet is fixedly connected with steam pipeline, and one end of steam pipeline is equipped with steamer
Machine, the side of steam turbine are equipped with generator, and the bottom end of steam turbine is fixedly connected with steam output pipe, the bottom end of steam output pipe
Condenser is installed, the bottom end of condenser is fixedly connected with condensate pipe, and one end of condensate pipe is equipped with water pump, and the one of water pump
End is fixedly connected with return pipe, and water pump is fixedly connected with refluxing opening by return pipe, and water pump can lead to the water in condensate pipe
It crosses return pipe and is back in vaporium again by refluxing opening, it is simple and practical, it is realizing recycling for water resource, is avoiding waste
Meanwhile also reducing the cost of electricity-generating of apparatus body;The bottom of burn pot is equipped with stabilizer blade, and the bottom end of stabilizer blade is pasted with rubber
Pad, anti-skid wearable are reliable and stable.
Detailed description of the invention
Fig. 1 is workflow structure schematic diagram of the invention;
Fig. 2 is schematic view of the front view of the invention;
Fig. 3 is schematic diagram of internal structure of the invention;
Fig. 4 is filter interior structural schematic diagram of the invention;
Fig. 5 is gas mixer chamber the schematic diagram of the section structure of the invention;
In appended drawing reference:1- apparatus body;2- blast furnace;3- blast furnace gas delivery pipe;4- gravitational precipitator;5- first class purification
Gas conveying tube;6- cyclone dust collectors;7- secondary purification gas conveying tube;8- bag filter;The clean gas main of 9-;10-
First branch pipe;11- reducer unit;The clean coal gas hold-up tank of 12-;The second branch pipe of 13-;14- steam pipeline;15- steam turbine;
16- generator;17- steam output pipe;18- condenser;19- condensate pipe;20- water pump;21- return pipe;22- burn pot;23-
Stabilizer blade;24- programmable controller;25- igniter;26- gas entry;27- combustion air inlet;28- smoke extracting tube;29-
Filter;30- water supplement port;31- refluxing opening;32- steam (vapor) outlet;The combustion chamber 33-;34- vaporium;35- interlayer;36- gas is mixed
Close room;37- exhanst gas outlet;38- exhaust fan;The first filter screen of 39-;The second filter screen of 40-;41- dust-exhausting port;42- inclined plate;43-
Baffle;44- uniform gas board;45- through-hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, the present invention provides a kind of technical solution:A kind of Power Generation by BF Gas combustion apparatus, including equipment
Ontology 1, blast furnace 2, blast furnace gas delivery pipe 3, gravitational precipitator 4, first class purification gas conveying tube 5, cyclone dust collectors 6, second level
Purify gas conveying tube 7, bag filter 8, clean gas main 9, the first branch pipe 10, reducer unit 11, the storage of clean coal gas
Tank 12, the second branch pipe 13, steam pipeline 14, steam turbine 15, generator 16, steam output pipe 17, condenser 18, condensate pipe
19, water pump 20, return pipe 21, burn pot 22, stabilizer blade 23, programmable controller 24, igniter 25, gas entry 26, help
Fire air intake 27, smoke extracting tube 28, filter 29, water supplement port 30, refluxing opening 31, steam (vapor) outlet 32, combustion chamber 33, vaporium
34, interlayer 35, gas mixer chamber 36, exhanst gas outlet 37, exhaust fan 38, the first filter screen 39, the second filter screen 40, dust-exhausting port
41, inclined plate 42, baffle 43, uniform gas board 44 and through-hole 45, the top of blast furnace 2 are fixedly connected with blast furnace gas delivery pipe 3, blast furnace coal
One end of letter shoot 3 is equipped with gravitational precipitator 4, and one end of gravitational precipitator 4 is fixedly connected with the conveying of first class purification coal gas
Pipe 5, one end of first class purification gas conveying tube 5 are equipped with cyclone dust collectors 6, and the top of cyclone dust collectors 6 is fixedly connected with two
Grade purification gas conveying tube 7, one end of secondary purification gas conveying tube 7 are equipped with bag filter 8, and the one of bag filter 8
End is fixedly connected with clean gas main 9, and the top of clean gas main 9 is provided with the first branch pipe 10, in the first branch pipe 10
Portion is equipped with reducer unit 11, and one end of the first branch pipe 10 is equipped with clean coal gas hold-up tank 12, the bottom end of clean gas main 9
It is provided with the second branch pipe 13, one end of the second branch pipe 13 is equipped with apparatus body 1, and the top of apparatus body 1 is provided with burn pot
22, the front of burn pot 22 is equipped with programmable controller 24, and the inside of burn pot 22 is provided with interlayer 35, and interlayer 35 is left
The top of side is equipped with smoke extracting tube 28, and the bottom end of smoke extracting tube 28 is equipped with filter 29, and the top inside filter 29 is equipped with
First filter screen 39, the bottom side of the first filter screen 39 are provided with dust-exhausting port 41, and the bottom of the first filter screen 39 is equipped with the second mistake
Strainer 40, the bottom of the second filter screen 40 are equipped with exhaust fan 38, and combuster 33, burning is arranged in the bottom inside burn pot 22
The bottom end of room 33 is provided with gas mixer chamber 36, and the top of gas mixer chamber 36 is equipped with uniform gas board 44, in gas mixer chamber 36
The two sides in portion are equipped with baffle 43, and gas entry 26, the two sides of gas entry 26 are provided in the middle part of 36 bottom end of gas mixer chamber
It is provided with combustion air inlet 27, the two sides at 33 middle part of combustion chamber are equipped with igniter 25, the top setting of 33 two sides of combustion chamber
There is exhanst gas outlet 37, the top of combustion chamber 33 is provided with vaporium 34, and the top in 34 left side of vaporium is provided with water supplement port 30, steams
The top on the right side of steam chest 34 is provided with refluxing opening 31, and the top of vaporium 34 is provided with steam (vapor) outlet 32, and the one of steam (vapor) outlet 32
End is fixedly connected with steam pipeline 14, and one end of steam pipeline 14 is equipped with steam turbine 15, the side installation of steam turbine 15
There is generator 16, the bottom end of steam turbine 15 is fixedly connected with steam output pipe 17, and the bottom end of steam output pipe 17 is equipped with condensation
Device 18, the bottom end of condenser 18 are fixedly connected with condensate pipe 19, and one end of condensate pipe 19 is equipped with water pump 20, water pump 20
One end is fixedly connected with return pipe 21, and the bottom of burn pot 22 is equipped with stabilizer blade 23.
Further, programmable controller 24 is electrically connected igniter 25 and exhaust fan 38, may be programmed process control
The work of device 24 control igniter 25 and exhaust fan 38.
Further, water pump 20 is fixedly connected with refluxing opening 31 by return pipe 21, and water pump 20 can be by condensate pipe 19
In water be back in vaporium 34 again by refluxing opening 31 by return pipe 21, it is simple and practical, in the circulation for realizing water resource
It utilizes, while avoiding waste, also reduces the cost of electricity-generating of apparatus body 1.
Further, the outside of interlayer 35 is provided with insulating layer, and structure is simple, is avoiding heat loss, is improving to coal gas
While burning generates flue gas utilization rate, it is excessively high to also prevent 1 external temperature of apparatus body, improves its safety used,
Extend its service life.
Further, the overall structure of gas mixer chamber 36 designs for inverted round stage, and volume is gradually increased from bottom to top, can
Increase the air inflow of mixed gas, guarantees that gas supply is sufficient, improve the agility of the igniting of igniter 25.
Further, it is used cooperatively between the first filter screen 39 and the second filter screen 40, the two cooperates, can be to coal
The flue gas that gas burning generates sufficiently is filtered, practical and efficient, avoids secondary pollution.
Further, the bottom end of the first filter screen 39 is provided with inclined plate 42, simple and practical, falls convenient for accelerating dust, drop
The low later period clears up frequency, improves the practicability of filter 29.
Further, spaced design between adjacent screen 43, baffle 43 can play coal gas and combustion air certain
Barrier effect reduces their flowing velocity, and avoid the occurrence of causes the duration of ignition long because of gas mixing unevenness, unstable combustion
Fixed phenomenon, it is simple and practical, burning time is being saved, while strengthen burning effect, is also improving the work effect of apparatus body 1
Rate reduces burning cost.
Further, the surface of uniform gas board 44 offers several through-holes 45, rationally distributed, is evenly distributed, and is convenient for gas
Uniformly outflow improves the stability of gas burning, enhances the combustion efficiency of combustion chamber 33.
Working principle:This kind of Power Generation by BF Gas combustion apparatus, when in use, the blast furnace gas generated from blast furnace 2 is successively
After triple purifications of gravitational precipitator 4, cyclone dust collectors 6 and bag filter 8, clean coal gas a part of generation passes through
First branch pipe 10 flows into storage in clean coal gas hold-up tank 12 and carries out his use, and another part directly passes through the second branch pipe 13 by coal gas
Entrance 26 enters the gas mixer chamber 36 of 1 bottom of apparatus body, and is sufficiently mixed under the action of baffle 43 with combustion air
It burns out of through-hole 45 flow into combustor 33 afterwards, the heat for generation of burning evaporates the moisture inside vaporium 34, steams
Vapour is entered in steam turbine 15 by steam (vapor) outlet 32 by steam pipeline 14, and thermal energy is converted into mechanical energy immediately, mechanical energy with
Driven generator 16 generate electricity, the steam of 15 internal leakage of steam turbine is entered in condenser 18 by steam output pipe 17,
Water in condensate pipe 19 is flow in vaporium 34 by return pipe 21 by refluxing opening 31 again under the action of water pump 20 to carry out
Reuse, the flue gas of generation of burning by exhanst gas outlet 37 enter interlayer 35 to mixed gas carry out preheating and to vaporium 34 carry out into
After the heating of one step, finally entered in filter 29 by smoke extracting tube 28 by 39 He of the first filter screen under the action of exhaust fan 38
It is discharged in air after the double filtration of second filter screen 40, this Power Generation by BF Gas combustion apparatus is not only easy to operate, makes
With convenient, and reliable and stable, safe and practical, energy conservation and environmental protection, generating efficiency is high, and combustion efficiency is good, and job costs are low, uses the longevity
Life length, resource utilization are high.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.