CN207438619U - A kind of energy-efficient coal dust combustion system - Google Patents
A kind of energy-efficient coal dust combustion system Download PDFInfo
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- CN207438619U CN207438619U CN201721519117.6U CN201721519117U CN207438619U CN 207438619 U CN207438619 U CN 207438619U CN 201721519117 U CN201721519117 U CN 201721519117U CN 207438619 U CN207438619 U CN 207438619U
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Abstract
The utility model discloses a kind of energy-efficient coal dust combustion systems.Wherein, the system includes coal hopper, is equipped in coal hopper one side and improves the coal-grinding apparatus of coal particle fineness, the mechanical spiral proportioning device for removing the crystallization water and appearance water in coal particle, the burner being equipped in mechanical spiral proportioning device one side, the rear cyclone separator being equipped in burner one side, the homogeneous furnace being equipped in rear cyclone separator one side, the evaporator being equipped in homogeneous furnace one side, the pressure devulcanizer being equipped in evaporator one side and hydrofilter and the chimney for the discharge of cleaned exhaust being equipped in hydrofilter one side are equipped in coal-grinding apparatus one side.The utility model have burning fully, the controllability of temperature is strong and security and is quantitatively sent coal powder spiral to control using computer and closes down the effect that time speed is 12 second time.
Description
Technical field
The utility model is related to a kind of coal-grinding field of combustion equipment, more particularly to a kind of energy-efficient coal dust combustion system.
Background technology
China is coal production state and country of consumption maximum in the world, and coal accounts for 75% left side of China's energy demand total amount
The world average level on the right side, well beyond 27%.Therefore, it is particularly important for China for making full use of for coal.It is right
For the process of consumption of coal, existing main problem is：One for coal kind is different, the coal of different cultivars have it is different
Characteristic, such as the meager coal of Datong coal, anthracite, lignite, meager coal, each kind of deep or light moulded coal ..., rich coal, big moisture coal, little Shui
Divide coal, volatile coal, be not easy the coal that -- volatile Coals, big viscosity coal, small viscosity coal ... wait various grades and situation, have each
Inherent characteristic, so as to cause the requirement of igniting to coal dust and burning also different, igniting will otherwise generated difficult and to after
Continuous burning causes difficulty；Second is that incomplete combustion, just because of the unfavorable of igniting, so as to cause subsequent combustion incomplete, by
The waste to the energy and the pollution to environment are caused in incomplete combustion；Third, uncombusted coal dust particle to port and
Internal face near port generates adherent incrustation phenomenon, so as to cause slagging and the generation of high temperature corrosion, shadow to the utmost
The service life of burner is rung, these situations are especially prominent for generating plant pulverized coal boiler and various pulverized-coal fired boilers.It is existing
Have, a kind of burning coal is vertical combustor structure, and the phenomenon that structure is in order to avoid cutoff, on top, furnace roof increases supplement igniting
Electromagnetic ignition device.Due to the phenomenon that in actual use, be easy to causeing the explosion of coal gas reflowed combustion, there are security risks.
Utility model content
In view of the above problems, the purpose of this utility model is to provide it is a kind of burn fully, the controllability of temperature it is strong and
Security and coal powder spiral and the energy-efficient coal dust that time speed is 1-2 seconds time is closed down to control quantitatively to send using computer
Combustion system.
To achieve the above object, a kind of energy-efficient coal dust combustion system provided by the utility model, wherein, including coal storage
Bucket is equipped in coal hopper one side and improves the coal-grinding apparatus of coal particle fineness, is equipped in coal-grinding apparatus one side in removal coal particle
The mechanical spiral proportioning device of the crystallization water and appearance water, the burner being equipped in mechanical spiral proportioning device one side, in burner
Rear cyclone separator that one side is equipped with, the homogeneous furnace being equipped in rear cyclone separator one side, the evaporation being equipped in homogeneous furnace one side
Device, the pressure devulcanizer being equipped in evaporator one side and hydrofilter and the discharge cleaning being equipped in hydrofilter one side
The chimney of exhaust gas.
The first feed screw that the discharge port that coal-grinding apparatus is included in coal hopper is equipped with, in the first screw feeding generator terminal
Ball mill that portion is equipped with, be equipped on the outlet side of ball mill thickness coal particle is carried out separated primary specific gravity separator,
It is connected in primary specific gravity separator upper end and the further separation of thickness coal particle and output terminal is connected with the first feed screw
Preceding cyclone separator and in the coal-storage pot that is equipped with of preceding cyclone separator one side connection.The requirement fineness of coal-grinding apparatus is equal as a result,
It is even, by first and second separation, 180 mesh are obtained to the coal particle of 280 mesh.
Mechanical spiral proportioning device is included in the second feed screw that coal storage pot bottom is equipped with, in the second feed screw
The heating coal pot that is equipped with, the motor being equipped on heating coal pot are equipped with the cross for extending to heating coal pot bottom on motor
Bar, the scraping block being equipped on cross boom end are heating the coal pot bottom meal outlet being equipped with and the powder feeding being equipped on meal outlet
Screw machine.After heating coal pot heats coal particle as a result, the crystallization water, appearance water are evaporated, due to lacking both moisture content, one
It runs into air to burn at once, so realizes clean-burning purpose.
Burner is included in the combustion chamber heated coal pot one side and be equipped with, the burning torch being equipped on combustion chamber, in combustion chamber
The inductor that is equipped with is equipped with vertical tubular heat exchanger on the mouth of combustion chamber smoke, is set in tubular heat exchanger one side
There are the vertical air hose communicated with tubular heat exchanger and the combustion fan being equipped on vertical air hose.Coal dust is in combustion chamber as a result,
Interior moment is reacted, completely burned, realizes clean-burning purpose.
Three-way pipe is provided between heating coal pot and combustion chamber；The pipe that one end is connected with heating coal pot in the three-way pipe
For the first communicating pipe, the pipe with combustion chamber is the second communicating pipe and the third connecting pipe connected with tubulation work heat exchanger.Point
Firelock is arranged on the end of the second communicating pipe.The hot air delivery pipe with combustion chamber is provided on heating coal pot；It is described
Powder feeding screw machine connected with hot air delivery pipe.As a result, burner by coal dust it is selected, discharge the crystallization water, obtain high warm
Air, in combustion zone, moment is reacted, and completely burned, effect reaches 90-96%.
In some embodiments, the first wind turbine being provided on coal-storage pot inside connection coal-storage pot, first wind
The bag filter being filtered to coal-storage pot inside coal dust is provided on machine.Bag filter includes what is be connected with the first wind turbine
Filler bin, the dust-removal cloth-bag being equipped with above filler bin and the powder discharging bin being equipped with below filler bin.Bag filter as a result,
Process is carried out to coal dust in wind coal.
In some embodiments, heat after coal pot carries out coal particle the heating removal crystallization water, the hot-air of generation from
Hot air delivery pipe exports, and the coal dust through the output of powder feeding screw machine carries out blending transportation to combustion chamber, burning torch ignition, combustion
Indoor hot-air and coal dust moment are sufficiently burned；Afterwards, the high-temperature flue gas of generation is transported in tubular heat exchanger, and combustion-supporting
The cold wind that wind turbine is transported in tubular heat exchanger exchanges heat；Cold wind after heat exchange becomes hot-air, and conveying the 3rd connects
Siphunculus, then input back the heating coal pot of the first communicating pipe and the combustion chamber of the second communicating pipe, cycling and reutilization respectively through three-way pipe.
In some embodiments, the coal particle after the separation and dedusting of coal-grinding apparatus is 180-280 mesh.
In some embodiments, primary specific gravity separator includes the first VERTICAL TUBE, is set respectively at the first VERTICAL TUBE both ends
There are the return duct and discharge gate that conveying wind coal is connected with preceding cyclone separator.
In some embodiments, preceding cyclone separator is equipped with the wind coal with return duct including conical pipe, on conical pipe
It mixing entrance and is respectively equipped with the particulate powders that connects with coal-storage pot in conical pipe upper and lower ends and exports and sent with the first spiral
The bulky grain dust outlet of material machine connection.
In some embodiments, rear cyclone separator be included in tubular heat exchanger be equipped with conveying after heat is changed high temperature
The flue gas delivery outlet of flue gas divides in tubular heat exchanger one side equipped with the cyclone separation storehouse being connected with flue gas delivery outlet, in cyclone
It is internally provided with from storehouse and extends to the guiding tube outside cyclone separation storehouse, the transmission equipped with flue gas after conveying separation on guiding tube
Pipe, the second wind turbine being equipped on transmission tube end.
In some embodiments, homogeneous furnace includes shell, is equipped with interconnected comb inside the shell, is set on comb
Some air inlets and gas outlet；The air inlet is connected with rear cyclone separator.
In some embodiments, devulcanizer is forced to include the first tank body connected with evaporator and set in the first tank body
Some single layer filter Ceramic Balls.
In some embodiments, hydrofilter includes the second tank body connected with the first tank body and in the second tank body
The double medium filtration Ceramic Balls being equipped with.
The beneficial effects of the utility model are the strong controllability with burn abundant, temperature and security and utilize electricity
Brain quantitatively send coal powder spiral and to close down time speed be 1-2 seconds time to control.It is specific as follows：1st, burning is abundant:(1) coal-grinding fills
The requirement fineness put is uniform, by first and second separation, obtains 180 mesh to the coal particle of 280 mesh, coal particle is heated, evaporation knot
Brilliant water, appearance water due to lacking both moisture, once running into air burn, so realize clean-burning purpose at once.
(2) burner by coal dust it is selected, discharge the crystallization water, obtain high-temperature hot air, in combustion zone, moment is reacted, completely
Burning, effect reach 90-96%.2nd, can control, burner has a temperature signal (there are one inductor), is sent to PLC backstages
Control, temperature sense dosage adjust coal dust size, achieve the effect that equalized temperature.3rd, so-called security is exactly screw rod and coal
Powder stops powder feeding, when temperature is relatively low, will stop；When the low 800 degree of stoppings of firelock.4th, the time is closed down, coal dust is controlled by burner
Screw rod transmission size realizes that moment closes down.Advantage：Burner keeps positive pressure, is fully burnt by positive pressure, going out to exhaust zone has two
Air auxiliary point, rear end portion are negative pressure.Our pressurizes are burnt, and keep certain pressure burning.If in burner when lacking pressure,
The pressure stability in protection burner can be reached by supplementing air.5th, due to the powder feeding used in mechanical spiral proportioning device
Screw machine can adjust coal grain conveying size.Solve unstable in the prior art, repair is frequent, replaces slurry than very fast, abrasion
Greatly, repair trouble.Cloth bag is often burnt to catch fire.Rotating speed is too fast, big to mechanical wear.The fluctuation of coal amount is big when normal, coal grain size without
The defects of method controls.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of coal-grinding apparatus, mechanical spiral proportioning device and burner in the utility model；
Fig. 3 is the structure diagram of burner in the utility model；
Fig. 4 is the structure diagram of primary specific gravity separator in the utility model；
Fig. 5 is the structure diagram at another visual angles of Fig. 4；
Fig. 6 is the structure diagram of preceding cyclone separator in the utility model；
Fig. 7 is the structure diagram of coal-storage pot and bag filter in the utility model；
Fig. 8 is the structure diagram of rear cyclone separator in the utility model；
Fig. 9 is the internal structure schematic diagram of rear cyclone separator in the utility model；
Figure 10 is the structure diagram of homogeneous furnace in the utility model；
Figure 11 is the schematic diagram of homogeneous furnace internal structure in the utility model；
Figure 12 is the structure diagram that devulcanizer and hydrofilter are forced in the utility model.
Specific embodiment
Utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figs. 1-12, a kind of energy-efficient coal dust combustion system is equipped with including coal hopper 01, in 01 one side of coal hopper
The crystallization water and appearance water for improving the coal-grinding apparatus 02 of coal particle fineness, being equipped in coal-grinding apparatus 02 one side in removal coal particle
Mechanical spiral proportioning device 03, the burner 04 being equipped in 03 one side of mechanical spiral proportioning device are equipped in 04 one side of burner
Rear cyclone separator 05, the homogeneous furnace 06 being equipped in rear 05 one side of cyclone separator, the evaporation that is equipped in 06 one side of homogeneous furnace
It device 07, the pressure devulcanizer 08 being equipped in 07 one side of evaporator and hydrofilter 09 and is equipped in 09 one side of hydrofilter
Discharge of cleaned exhaust chimney 10.The effect of evaporator 07 is to absorb heat to generate steam, discharges low temperature waste gas afterwards.Coal-grinding
The first feed screw 21 that the discharge port that device 02 is included in coal hopper 01 is equipped with, on 21 end of the first feed screw
The ball mill 22 that is equipped with is equipped on the outlet side of ball mill 22 separated primary specific gravity separator is carried out to thickness coal particle
23rd, it is connected in primary 23 upper end of specific gravity separator to the further separation of thickness coal particle and output terminal and the first feed screw
The preceding cyclone separator 24 of 21 connections and the coal-storage pot 25 being equipped in the connection of preceding 24 one side of cyclone separator.Coal-grinding apparatus 02
It is required that fineness is uniform, by first and second separation, 180 mesh are obtained to the coal particle of 280 mesh.Mechanical spiral proportioning device 03 includes
The second feed screw 31 for being equipped in 25 bottom of coal-storage pot, the heating coal pot 32 being equipped on the second feed screw 31,
Motor 33 that heating coal pot 32 is equipped with is equipped on motor 33 and extends to the cross-bar 34 of 32 bottom of heating coal pot, in cross
Scraping block 35 that 34 end of bar is equipped with, in the heating coal pot 32 bottom meal outlet 36 being equipped with and the powder feeding being equipped on meal outlet 36
Screw machine 37.After heating coal pot 32 heats coal particle, the crystallization water, appearance water are evaporated, due to lacking both moisture content, one meets
It burns at once to air, so realizes clean-burning purpose.Burner 04 is included in the burning that 32 one side of heating coal pot is equipped with
Room 41, the burning torch 42 being equipped on combustion chamber 41, the inductor 43 being equipped on combustion chamber 41, the mouth in 41 smoke of combustion chamber
Be equipped with vertical tubular heat exchanger 44, be equipped in 44 one side of tubular heat exchanger communicate with tubular heat exchanger 44 it is vertical
Air hose 45 and the combustion fan 46 being equipped on vertical air hose 45.Coal dust moment in combustion chamber 41 is reacted, and is fired completely
It burns, realizes clean-burning purpose.Three-way pipe 100 is provided between heating coal pot 32 and combustion chamber 41.One end in three-way pipe 100
Be the first communicating pipe 101 with the pipe that connect of heating coal pot 32, the pipe connected with combustion chamber 41 be the second communicating pipe 102 and with row
The third connecting pipe 103 of plumber's heat exchanger connection.Burning torch 42 is arranged on the end of the second communicating pipe 102.Heat coal pot 32
On be provided with the hot air delivery pipe 38 connected with combustion chamber 41.Powder feeding screw machine 37 is connected with hot air delivery pipe 38.Burning
Device 04 by coal dust it is selected, discharge the crystallization water, obtain high-temperature hot air, in combustion zone, moment is reacted, completely burned,
Effect reaches 90-96%.The first wind turbine 26 connected inside coal-storage pot 25 is provided on coal-storage pot 25, is set on the first wind turbine 26
There is the bag filter 27 being filtered to 25 inside coal dust of coal-storage pot.Bag filter 27 includes what is be connected with the first wind turbine 26
Filler bin 271, the dust-removal cloth-bag 272 being equipped with above filler bin 271 and the powder discharging bin 273 being equipped with below filler bin 271.
Bag filter 27 carries out process to coal dust in wind coal.After heating coal 32 pairs of coal particles of pot carry out the heating removal crystallization water, generate
Hot-air exported from hot air delivery pipe 38, the coal dust exported through powder feeding screw machine 37 carries out blending transportation to combustion chamber 41,
Hot-air and coal dust moment are sufficiently burned in 42 ignition, combustion room 41 of burning torch；Afterwards, the high-temperature flue gas of generation is transported to
In tubular heat exchanger 44, the cold wind being transported to combustion fan 46 in tubular heat exchanger 44 exchanges heat；After heat exchange
Cold wind become hot-air, conveying third connecting pipe 103, then input back through three-way pipe 100 heating of first communicating pipe 101 respectively
The combustion chamber 41 of 32 and second communicating pipe 102 of coal pot, cycling and reutilization.Coal after the separation and dedusting of coal-grinding apparatus 02
Grain is 180-280 mesh.Primary specific gravity separator 23 include the first VERTICAL TUBE 231, be respectively equipped at 231 both ends of the first VERTICAL TUBE with
The preceding connection of the cyclone separator 24 conveying return duct 232 of wind coal and discharge gate 233.Preceding cyclone separator 24 include conical pipe 241,
Be equipped on conical pipe 241 with the wind coal mixing entrance 242 of return duct 232 and be respectively equipped in 241 upper and lower ends of conical pipe and
The particulate powders outlet 243 and the bulky grain dust outlet 244 connected with the first feed screw 21 that coal-storage pot 25 connects.Afterwards
Cyclone separator 05 be included in tubular heat exchanger 44 be equipped with conveying through heat change after high-temperature flue gas flue gas delivery outlet 51, arranging
44 one side of pipe heat exchanger is equipped with the cyclone separation storehouse 52 being connected with flue gas delivery outlet 51, is internally provided with and prolongs in cyclone separation storehouse 52
The guiding tube 53 outside cyclone separation storehouse 52 is reached, the dispatch tube 54 of flue gas after conveying separates is equipped on guiding tube 53, is passing
Send the second wind turbine 55 that 54 end of pipe is equipped with.Homogeneous furnace 06 includes shell 61, interconnected comb is equipped in shell 61
62nd, the air inlet 63 being equipped on comb 62 and gas outlet 64.Air inlet 63 is connected with rear cyclone separator 05.Force devulcanizer
08 includes the first tank body 81 connected with evaporator 07 and the single layer filter Ceramic Balls 82 being equipped in the first tank body 81.Wet method is removed
Dirt device 09 includes the second tank body 91 connected with the first tank body 81 and the double medium filtration Ceramic Balls 92 being equipped in the second tank body 91.
1st, burning is abundant:(1) the requirement fineness of coal-grinding apparatus 02 is uniform, by first and second separation, obtains 180 mesh to 280
Purpose coal particle, coal particle is heated, evaporative crystallization water, appearance water, due to lacking both moisture, once run into air at once
Burning, so realizes clean-burning purpose.(2) burner 04 is by the way that coal dust is selected, the discharge crystallization water, to obtain high warm empty
Gas, in combustion zone, moment is reacted, and completely burned, effect reaches 90-96%.2nd, can control, burner 04 has a temperature
Signal (there are one inductor 43) is controlled, is sent to PLC Background controls, temperature sense dosage adjusts coal dust size, reaches temperature
The effect of balance.3rd, so-called security is exactly that screw rod and coal dust stop powder feeding, when temperature is relatively low, will be stopped；When firelock low 800
Degree stops.4th, the time is closed down, coal dust screw rod transmission size is controlled by burner 04, realizes that moment closes down.Advantage：Burner 04 is protected
Positive pressure is held, is fully burnt by positive pressure, going out to exhaust zone there are two air auxiliary points, and rear end portion is negative pressure.Our pressurizes are burnt, and are protected
Hold certain pressure burning.If in burner 04 when lacking pressure, the pressure in protection burner 04 can be reached by supplementing air
Power is stablized.5th, due to the powder feeding screw machine 37 used in mechanical spiral proportioning device 03, coal grain conveying size can be adjusted.It solves
Unstable in the prior art, repair is frequent, replaces slurry than very fast, and abrasion is big, repair trouble.Cloth bag is often burnt to catch fire.Rotating speed
It is too fast, it is big to mechanical wear.The defects of fluctuation of coal amount is big when normal, and coal grain size is unable to control.
Operation principle
Coal hopper 01 is fed to ball mill 22 by the first feed screw 21, the coal grain of aniseed is worn into powder, afterwards
Primary specific gravity separator 23 is sent to, purpose is exactly the cyclone separator 24 before being then sent through by coarse grain and powder separation, it is therefore an objective to will be thick
Grain is separated with powder, and mill (postsearch screening separation) is returned in wherein coarse grain reflux, and powder is sent to the first wind turbine 26 and sucks, and is pressed onto cloth bag and removes
Dirt device 27 filters, powder and air filtration, and powder is separated to filler bin 271 afterwards, and by arriving heating coal pot 32, agitating and heating removes coal
In the crystallization water, improve clean-burning effect.Powder feeding screw machine 37 is quantified, i.e., is quantified by the time adjustment of conveying,
Spiral coordinates with hot-air, is sent to burner 04.Coal dust is mixed with hot-air, burning, recycles afterwards in burner 04
Using burner 04 is heated, i.e., the cold wind through combustion fan 46 exchanges heat into hot wind and is sent to heating coal pot 32, shape again waste gas circulation
It is mixed into hot-air with coal dust, burner 04 is sent to by pipeline.The high-temp waste gas that combustion reaction is discharged out of burner 04, send
Dust is separated to rear cyclone separator 05, heat release in homogeneous furnace 06 is then pressed and delivered to by the second wind turbine 55 and is moved back to aluminum metal
Fire uses, and also has remaining waste gas residual heat to be sent in evaporator 07 and uses, most afterwards through hydrofilter 09 and pressure devulcanizer 08
Gas afterwards meets clean air discharge standard.
Above-described is only some embodiments of the utility model.For those of ordinary skill in the art,
On the premise of not departing from the utility model and creating design, various modifications and improvements can be made, these belong to practical new
The protection domain of type.
Claims (10)
1. a kind of energy-efficient coal dust combustion system, which is characterized in that including coal hopper, be equipped in coal hopper one side and improve coal
The mechanical spiral of the coal-grinding apparatus of grain fineness, the crystallization water being equipped in coal-grinding apparatus one side in removal coal particle and appearance water quantifies
Device, the burner being equipped in mechanical spiral proportioning device one side, the rear cyclone separator being equipped in burner one side, in rear rotation
Homogeneous furnace that wind separator one side is equipped with, the evaporator being equipped in homogeneous furnace one side, the pressure desulfurization being equipped in evaporator one side
The chimney of device and hydrofilter and the discharge of cleaned exhaust being equipped in hydrofilter one side；
The first feed screw that the discharge port that the coal-grinding apparatus is included in coal hopper is equipped with, in the first feed screw
Ball mill that end is equipped with is equipped on the outlet side of ball mill separated primary proportion separation is carried out to thickness coal particle
Device is connected in primary specific gravity separator upper end to the further separation of thickness coal particle and output terminal and the first feed screw company
The preceding cyclone separator connect and the coal-storage pot being equipped in the connection of preceding cyclone separator one side；
The mechanical spiral proportioning device is included in the second feed screw that coal storage pot bottom is equipped with, in the second screw feeding
Heating coal pot that machine is equipped with, the motor being equipped on heating coal pot are equipped on motor and extend to the ten of heating coal pot bottom
Word bar, the scraping block being equipped on cross boom end, in the meal outlet that is equipped with of heating coal pot bottom and what is be equipped on meal outlet give
Powder screw machine；
The burner is included in the combustion chamber heated coal pot one side and be equipped with, the burning torch being equipped on combustion chamber, is burning
Inductor that room is equipped with is equipped with vertical tubular heat exchanger, in tubular heat exchanger one side on the mouth of combustion chamber smoke
Equipped with the vertical air hose communicated with tubular heat exchanger and the combustion fan being equipped on vertical air hose；
Three-way pipe is provided between the heating coal pot and combustion chamber；One end is connected with heating coal pot in the three-way pipe
It manages as the first communicating pipe, the pipe with combustion chamber is the second communicating pipe and the third connecting pipe connected with tubulation work heat exchanger；
The burning torch is arranged on the end of the second communicating pipe；
The hot air delivery pipe with combustion chamber is provided on the heating coal pot；The powder feeding screw machine and hot-air
Delivery pipe connects.
2. a kind of energy-efficient coal dust combustion system according to claim 1, which is characterized in that set on the coal-storage pot
The first wind turbine connected inside coal-storage pot is equipped with, is provided with what coal-storage pot inside coal dust was filtered on first wind turbine
Bag filter；
The bag filter include the filler bin being connected with the first wind turbine, the dust-removal cloth-bag that is equipped with above filler bin and
The powder discharging bin being equipped with below filler bin.
3. a kind of energy-efficient coal dust combustion system according to claim 2, which is characterized in that the heating coal pot is right
After coal particle carries out the heating removal crystallization water, the hot-air of generation is exported from hot air delivery pipe, through the output of powder feeding screw machine
Coal dust carries out blending transportation to combustion chamber, in burning torch ignition, combustion room hot-air and coal dust moment be sufficiently burned；Afterwards,
The high-temperature flue gas of generation is transported in tubular heat exchanger, and the cold wind being transported to combustion fan in tubular heat exchanger is changed
Heat；Cold wind after heat exchange becomes hot-air, conveys third connecting pipe, then inputted back for the first communicating pipe respectively through three-way pipe
Heat coal pot and the combustion chamber of the second communicating pipe, cycling and reutilization.
4. a kind of energy-efficient coal dust combustion system according to claim 1,2 or 3, which is characterized in that filled by coal-grinding
Coal particle after the separation and dedusting put is 180-280 mesh.
A kind of 5. energy-efficient coal dust combustion system according to claim 1, which is characterized in that the primary proportion point
Include the first VERTICAL TUBE from device, the return duct that conveying wind coal is connected with preceding cyclone separator is respectively equipped at the first VERTICAL TUBE both ends
And discharge gate.
A kind of 6. energy-efficient coal dust combustion system according to claim 1, which is characterized in that the preceding cyclonic separation
Device includes conical pipe, is equipped with the wind coal mixing entrance of return duct and is respectively equipped in conical pipe upper and lower ends on conical pipe
The particulate powders outlet connected with coal-storage pot and the bulky grain dust outlet connected with the first feed screw.
A kind of 7. energy-efficient coal dust combustion system according to claim 3, which is characterized in that the rear cyclonic separation
Device be included in tubular heat exchanger be equipped with conveying through heat change after high-temperature flue gas flue gas delivery outlet, in tubular heat exchanger one side
Equipped with the cyclone separation storehouse being connected with flue gas delivery outlet, it is internally provided in cyclone separation storehouse and extends to drawing outside cyclone separation storehouse
Conduit is equipped with the dispatch tube of flue gas after conveying separates, the second wind turbine being equipped on transmission tube end on guiding tube.
8. a kind of energy-efficient coal dust combustion system according to claim 1, which is characterized in that the homogeneous furnace includes
Shell is equipped with interconnected comb, the air inlet being equipped on comb and gas outlet inside the shell；The air inlet is with after
Cyclone separator connects.
A kind of 9. energy-efficient coal dust combustion system according to claim 1, which is characterized in that the pressure devulcanizer
Including the first tank body connected with evaporator and the single layer filter Ceramic Balls being equipped in the first tank body.
A kind of 10. energy-efficient coal dust combustion system according to claim 9, which is characterized in that the wet dedusting
Device includes the second tank body connected with the first tank body and the double medium filtration Ceramic Balls being equipped in the second tank body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721519117.6U CN207438619U (en) | 2017-11-14 | 2017-11-14 | A kind of energy-efficient coal dust combustion system |
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| CN201721519117.6U CN207438619U (en) | 2017-11-14 | 2017-11-14 | A kind of energy-efficient coal dust combustion system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726346A (en) * | 2017-11-14 | 2018-02-23 | 广东焕能科技有限公司 | A kind of energy-efficient coal dust combustion system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107726346A (en) * | 2017-11-14 | 2018-02-23 | 广东焕能科技有限公司 | A kind of energy-efficient coal dust combustion system |
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