CN205932287U - Device is administered to coal conveying system of power plant dust - Google Patents
Device is administered to coal conveying system of power plant dust Download PDFInfo
- Publication number
- CN205932287U CN205932287U CN201620897703.3U CN201620897703U CN205932287U CN 205932287 U CN205932287 U CN 205932287U CN 201620897703 U CN201620897703 U CN 201620897703U CN 205932287 U CN205932287 U CN 205932287U
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- CN
- China
- Prior art keywords
- coal
- deflector chute
- conveyer belt
- dust
- baffle box
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a device is administered to coal conveying system of power plant dust, including first baffle box and coal -conveying belt, coal -conveying belt's one end is located first baffle box, and first baffle box adopts seal structure, and defeated flich one end downriver is equipped with the fine motion inertia force precipitator on the first baffle box, and the coal -conveying belt's outside the first baffle box below is equipped with intermittent type nature atomizer. The utility model discloses based on totally closed baffle box, will be unpowered, multiple dust removal mode organic solidarity such as fine motion power, water under high pressure spraying in a process systems, this system can adapt to fires the dust removal requirement of coal under different damp conditions that the coal particles degree is fine and closely woven and cohesiveness is strong, has advantages such as dust removal effect is good, the energy consumption low, the maintenance volume is little. Behind this project implementation, the on -the -spot dust concentration of coal conveying system reduces to below the 4mgm3, satisfies the requirement of country to job site dust concentration.
Description
Technical field
This utility model is related to Coal Transportation System, more particularly to a kind of Coal Transportation System treating flour dust device.
Background technology
The not effectively dust-proof dust suppression measure substantially in design of the traditional coal handling system in thermal power plant, fire coal is unloading
A large amount of dust can be produced, difficulty of governance is larger, is power plant's dust pollution place the most serious in material, transhipment and screening process.
Dust pollution not only endangers the healthy of operating personnel, and can produce the potential safety hazard of spontaneous combustion of pulverized coal, has a strong impact on power plant
Safe and civilized production.As the leading industry of the national economic development, power industry must walk sustainable development path, in addition closely
Over year, national requirements for environmental protection steps up, and energy-saving demand increasingly strengthens, and the work of coal handling system treating flour dust becomes pendulum at me
In face of important topic.
Utility model content
The purpose of this utility model is, provides a kind of Coal Transportation System treating flour dust device, can effectively reduce
The concentration of the dust that coal handling system produces, has the advantages that good dedusting effect, energy consumption be low, maintenance is little.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that：
A kind of Coal Transportation System treating flour dust device, including the first deflector chute and coal conveyer belt, one end of coal conveyer belt
In the first deflector chute, the first deflector chute adopts sealing structure, on the first deflector chute the one end in conveying direction downstream be provided with micro-
Theisen disintegrator, the lower section of the coal conveyer belt outside the first deflector chute is provided with intermittent sprayer unit.Defeated coal skin outside to deflector chute
Carrying out at non-tight with non-working surface and coal conveyer belt two ends sprays is effect in order to play dedusting first, and, fog
Will not be entrained in the middle of material, the coal-fired combustion stability of impact.The two ends of coal conveyer belt have roller, can roll and trickle down at it
On coal dust, through repeatedly roll can with coal conveyer belt vibration and roller rotate produce airborne dust, spray herein and can play
The effect got twice the result with half the effort.
Also include coal spout and unpowered return duct, coal spout and the first deflector chute are connected, the one of unpowered return duct
End is connected with coal spout, the other end and the first deflector chute, the overall cyclization of coal spout, unpowered return duct and the first deflector chute
Shape is arranged.Fire coal, during higher level's belt head portion drops into subordinate's strap end along coal spout, extrudes coal spout and first
Deflector chute inner space simultaneously produces malleation, inner air release formed swiftly flowing induced air, highest wind velocity up to 15m/s,
Carry coal dust effusion simultaneously and cause airborne dust.Air-flow malleation can be reduced by designing unpowered return duct, reduce wind speed, prevent powder
Dirt flies upward.
It is provided with some dust-break curtains along conveying direction in described first deflector chute, damping weakening effect is risen to remaining induced air.
In one end of coal conveyer belt is enclosed in by the first deflector chute, the lower section of coal conveyer belt is provided with wear-resistant slide plate, defeated coal skin
Band is with described wear-resistant slide plate for relying on.Wear-resistant slide plate one side plays a supportive role, it is possible to increase the sealing property of deflector chute, if
Using roller support coal conveyer belt, material can make coal conveyer belt produce deformation when falling, the sealing of impact deflector chute, by resistance to
Wear smooth plate is not in then this problem.
The both sides of the first deflector chute are provided with anti-overflow skirtboard, lateral plate component and top cover, anti-overflow skirtboard conflict coal conveyer belt work
Face, lateral plate component is connected with anti-overflow skirtboard, and top cover connects the lateral plate component of the first deflector chute both sides.Wear-resistant slide plate, anti-overflow skirtboard,
Lateral plate component and top cover coordinate jointly, make deflector chute form the structure of a sealing, prevent flour dust overflow.
A kind of Coal Transportation System method for treating flour dust, for reducing the concentration of the dust of coal handling system generation, defeated coal measures
System includes deflector chute and coal conveyer belt, and one end of coal conveyer belt is located in deflector chute, including following method：Reduce in deflector chute
Air-flow malleation；Carry out intermittent spraying at the non-tight of the coal conveyer belt non-working surface outside to deflector chute and two ends cylinder；Guide
Groove adopts sealing structure.Carry out spraying first at the non-tight at the coal conveyer belt non-working surface outside to deflector chute and coal conveyer belt two ends
Before this in order to play the effect of dedusting, and, fog will not be entrained in the middle of material, the coal-fired combustion stability of impact.Defeated coal
The two ends of belt have roller, can roll unrestrained coal dust thereon, can be with coal conveyer belt vibration and roller through repeatedly rolling
Cylinder rotates and produces airborne dust, sprays herein and can play a multiplier effect.
Specifically, the described air-flow malleation reducing in deflector chute includes following method：Conveying direction downstream on deflector chute
The micro-power deduster that connects with deflector chute of one end setting, deflector chute is carried out with air-breathing, removes by described micro-power deduster
Dirt.The unpowered dust chamber that deflector chute is connected with coal spout and/or return duct are arranged on deflector chute, described micro power removes
Dirt device is sack cleaner.
In order to save spraying water resource, described to deflector chute outside coal conveyer belt non-working surface and two ends non-tight at enter
The intermittent spraying of row includes following method：Spraying water is made to erupt and evaporation balance, (t1+t2)V1=V2t2；
Deform：
Water spraying time and interval according to following ratio distributing nozzles：
Wherein, V1It is coal conveyer belt non-working surface moisture evaporation speed, V2It is the water discharge rate of nozzle, t1It is that nozzle stops
Working time, t2It is the nozzle operation time.In this patent, the work surface of coal conveyer belt refers to the outer coal conveyer belt of deflector chute and combustion
The surface of coal contact；Non-working surface refers to the surface that coal conveyer belt is not contacted with fire coal, such as below coal conveyer belt.In defeated coal skin
The non-working surface spraying of band will not increase the wetness of fire coal, but the non-working surface being prevented from coal conveyer belt produces dust.
Aforementioned intermittence sprayer unit sets water spraying time and interval in this way.
Spray time and spray intervals time are set using this ratio, on the one hand ensure that coal conveyer belt surface moisture,
Play estimated dust removing effects, on the other hand also will not waste water resource.Reduce the effect that spray rate also can play water saving,
But spray rate reduction will affect spray coverage amasss, and affects dust removing effects.Specifically, in order to save water money further
Source, described spraying water takes from coal handling system waste water circulation containing coal system, the recycling that coal handling system flushing water can be carried out,
Extra water source need not be increased, water-saving result is notable.
Compared with prior art, this utility model is based on totally-enclosed deflector chute, by unpowered, micro power, water under high pressure
Spraying etc. multiple dedusting method organic combinations in a process system, this system can adapt to coal-burning particle degree fine and closely woven and bond
Dust removal requirement under the conditions of different humidity for the strong coal of property, has the advantages that good dedusting effect, energy consumption be low, maintenance is little.Should
After the project implementation, coal handling system scene dust concentration is reduced to 4mg/m3Hereinafter, meet country for working site dust concentration
Requirement.
The reduction of live dust concentration, decreases coal dust in installations and facilities and accumulates, it is to avoid spontaneous combustion of pulverized coal situation occurs, and improves
The safety of working environment.The reduction of live dust concentration, greatly reduces on-site personnel dust suction volume, contributes to dropping
The sickness rate of low anthraco-silicosises, ensures the health of human body of operating personnel.And by the way of unpowered and micro power combine, greatly
Reduce greatly system energy consumption.
Brief description
Fig. 1 is a kind of structural representation of embodiment of the present utility model；
Fig. 2 is a kind of sectional view of embodiment of the first deflector chute.
Reference：1- coal spout, 2- is unpowered return duct, 3- first deflector chute, 4- wear-resistant slide plate, 5- micro power dedusting
Device, 6- intermittence sprayer unit, 7- dust-break curtain, 8- top cover, 9- lateral plate component, the anti-overflow skirtboard of 10-, 11- coal conveyer belt.
With reference to the accompanying drawings and detailed description this utility model is further described.
Specific embodiment
The embodiment 1 of Coal Transportation System treating flour dust device：As depicted in figs. 1 and 2, a kind of electricity realizing embodiment 1
The device of factory's coal handling system method for treating flour dust, including the first deflector chute 3 and coal conveyer belt 11, one end of coal conveyer belt 11 is located at
In first deflector chute 3, the first deflector chute 3 adopts sealing structure, and on the first deflector chute 3, the one end in conveying direction downstream is provided with fine motion
Inertia force precipitator 5, the lower section of the coal conveyer belt 11 outside the first deflector chute 3 is provided with intermittent sprayer unit 6.
Shower nozzle adopts high pressure automatically cleaning spiral nozzle, effectively prevents shower nozzle from blocking, and carries automatic back-flushing filtering device,
Its filtering accuracy is more than 250 mesh, and the pressure loss is less than 0.01MPa, can periodically automatically the filter element of defecator be cleaned automatically, no
Must human intervention.Each shower nozzle injection flow rate is 0.02L/s, and, up to 5～30 microns, atomizing effect is good, injection flow rate is little for atomized particle size.
This set system repeats and utilizes flushing water, the moisture evaporation speed according to belt surface and the belt speed of service, and reasonable set sprays
Mist time and interval, more can greatly save system water.
Also include coal spout 1 and unpowered return duct 2, coal spout 1 is connected with the first deflector chute 3, unpowered return duct 2
One end be connected with coal spout 1, the other end and the first deflector chute 3, coal spout 1, unpowered return duct 2 and the first deflector chute 3
Entirety circularize arrangement.During higher level's belt head portion drops into subordinate's strap end along coal spout, extruding falls fire coal
Coal pipe and the first deflector chute inner space simultaneously produce malleation, and inner air release forms swiftly flowing induced air, highest wind velocity
Up to 15m/s, carry coal dust effusion simultaneously and cause airborne dust.Air-flow malleation can be reduced by designing unpowered return duct, reduce
Wind speed, prevents dust from flying.
It is provided with some dust-break curtains 7 along conveying direction in described first deflector chute 3.First deflector chute 3 is by coal conveyer belt 11
In one end is enclosed in, the lower section of coal conveyer belt 11 is provided with wear-resistant slide plate 4, and coal conveyer belt 11 is with described wear-resistant slide plate 4 for support.The
The both sides of one deflector chute 3 are provided with anti-overflow skirtboard 10, lateral plate component 9 and top cover 8, and anti-overflow skirtboard 10 conflict coal conveyer belt 11 works
Face, lateral plate component 9 is connected with anti-overflow skirtboard 10, and top cover 8 connects the lateral plate component 9 of the first deflector chute 3 both sides.
The invention also discloses a kind of Coal Transportation System method for treating flour dust, for reducing coal handling system generation
The concentration of dust, coal handling system includes deflector chute and coal conveyer belt, and one end of coal conveyer belt is located in deflector chute, including such as lower section
Method：Reduce the air-flow malleation in deflector chute；Enter at the non-tight of the coal conveyer belt non-working surface outside to deflector chute and two ends cylinder
The intermittent spraying of row；Deflector chute adopts sealing structure.Air-flow malleation in described reduction deflector chute includes following method：In guide
The micro-power deduster that connects with deflector chute of one end setting in conveying direction downstream on groove, by described micro-power deduster to leading
Hopper carries out air-breathing, dedusting.The unpowered dust chamber being connected with deflector chute and/or return duct are arranged on deflector chute, described
Micro-power deduster is sack cleaner.
Described to deflector chute outside coal conveyer belt non-working surface and two ends non-tight at carry out intermittent spraying include as
Lower method：
Water spraying time and interval according to following ratio distributing nozzles：V1It is coal conveyer belt non-working surface
Moisture evaporation speed, V2It is the water discharge rate of nozzle, t1It is the nozzle off-air time, t2It is the nozzle operation time.
For belt width 1.4m, belt speed 2.5m/s, temperature is 25 DEG C, under the conditions of humidity 80%, on every 100 silverskin bands
Water evaporation quantity is about 0.37kg/min, and 2 shower nozzles are respectively installed at every belt two ends, and each shower nozzle injection flow rate is 1.2kg/min.
In the present embodiment, coal conveyer belt length is 325 meters, so V1=0.0037kg/min × 325 ≈ 1.2kg/min,
Every 4 shower nozzles installed altogether by belt, so V2=1.2kg/min × 4=4.8kg/min；
t1:t2=3:1, so comparing, with continuous spray pattern, the injection flow rate that about 3/4 can be reduced.
Described spraying water takes from coal handling system waste water circulation containing coal system.The repetition that coal handling system flushing water can be carried out
Using extra water source need not be increased, and water-saving result is notable.
Claims (5)
1. a kind of Coal Transportation System treating flour dust device is it is characterised in that include the first deflector chute (3) and coal conveyer belt
(11), one end of coal conveyer belt (11) is located in the first deflector chute (3), and the first deflector chute (3) adopts sealing structure, the first guide
The one end in the upper conveying direction downstream of groove (3) is provided with micro-power deduster (5), the first deflector chute (3) coal conveyer belt (11) outward
Lower section is provided with intermittent sprayer unit (6).
2. the Coal Transportation System treating flour dust device according to claim 1 is it is characterised in that also include coal spout (1)
With unpowered return duct (2), coal spout (1) is connected with the first deflector chute (3), one end of unpowered return duct (2) and coal breakage
Pipe (1) is connected, the other end and the first deflector chute (3), coal spout (1), unpowered return duct (2) and the first deflector chute (3)
Entirety circularizes arrangement.
3. the Coal Transportation System treating flour dust device according to claim 1 is it is characterised in that described first deflector chute
(3) it is provided with some dust-break curtains (7) along conveying direction in.
4. the Coal Transportation System treating flour dust device according to claim 1 will be it is characterised in that the first deflector chute (3) will
In one end of coal conveyer belt (11) is enclosed in, the lower section of coal conveyer belt (11) is provided with wear-resistant slide plate (4), and coal conveyer belt (11) is with institute
Stating wear-resistant slide plate (4) is to rely on.
5. Coal Transportation System treating flour dust device according to claim 4 is it is characterised in that the first deflector chute (3)
Both sides are provided with anti-overflow skirtboard (10), lateral plate component (9) and top cover (8), anti-overflow skirtboard (10) conflict coal conveyer belt (11) work surface,
Lateral plate component (9) is connected with anti-overflow skirtboard (10), and top cover (8) connects the lateral plate component (9) of the first deflector chute (3) both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620897703.3U CN205932287U (en) | 2016-08-18 | 2016-08-18 | Device is administered to coal conveying system of power plant dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620897703.3U CN205932287U (en) | 2016-08-18 | 2016-08-18 | Device is administered to coal conveying system of power plant dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205932287U true CN205932287U (en) | 2017-02-08 |
Family
ID=57919223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620897703.3U Expired - Fee Related CN205932287U (en) | 2016-08-18 | 2016-08-18 | Device is administered to coal conveying system of power plant dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205932287U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516135A (en) * | 2018-09-13 | 2019-03-26 | 唐山晟浩电力环保科技有限公司 | A kind of conveyer belt dust pelletizing system |
-
2016
- 2016-08-18 CN CN201620897703.3U patent/CN205932287U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516135A (en) * | 2018-09-13 | 2019-03-26 | 唐山晟浩电力环保科技有限公司 | A kind of conveyer belt dust pelletizing system |
| CN109516135B (en) * | 2018-09-13 | 2024-02-27 | 唐山晟浩电力环保科技有限公司 | Dust removing system for conveyer belt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20170818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |