CN209081820U - A kind of feed coal centralized system powder and transportation system - Google Patents
A kind of feed coal centralized system powder and transportation system Download PDFInfo
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- CN209081820U CN209081820U CN201821696938.1U CN201821696938U CN209081820U CN 209081820 U CN209081820 U CN 209081820U CN 201821696938 U CN201821696938 U CN 201821696938U CN 209081820 U CN209081820 U CN 209081820U
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Abstract
The utility model relates to a kind of feed coal centralized system powder and transportation system, solves single set coal dust preparation system and be only capable of being fed to separate unit gasification furnace, the problem of flexibility is poor, high investment.Technical solution includes the more set coal dust preparation systems being arranged in a separate frame and more set coal dust distributing systems, more set coal dust distributing systems share a coal dust pneumatic conveying pipeline in pairs and connect with two to four coal dust bunkers correspondingly with more set coal dust preparation systems；The coal dust preparation system includes sequentially connected run coal bin, Gravimetric Coal Feeders, medium-speed pulverizer and coal collector, the discharge of the coal collector is successively connect with rotary feeder, screw conveyor and coal fines fiber separator, and the coal dust distributing system includes the coal dust surge bunker connecting with coal fines fiber separator and sending cans.The utility model is designed reasonably, utilization rate of equipment and installations is high, is convenient for centralized operation and management, and coal dust conveying and allocation flexibility are high, it is low with operating cost to invest.
Description
Technical field
The utility model relates to a kind of coal dust centralized system is standby and transportation system.
Background technique
Coal gasification has strict demand to the water content and size distribution of coal dust.Block stock coal need to be by milling and doing
Dry processing.Pulverized coal preparation is block stock coal to be milled and is dried obtained water content, size distribution satisfaction gasification work
The coal dust that skill requires.The coal dust bunker that qualified coal dust is transported to stokehold stores for future use.
Currently, coal dust preparation system is mostly correspondingly arranged by coalition framework and gasified boiler system, qualified coal dust passes through defeated
The Stokehole pulverized coal bunker for sending mechanical (such as screw conveyor or embedded scraper transporter) to be delivered to corresponding gasification furnace.In order to guarantee gas
Change that furnace is continuous, stablizes, long-term operation, pulverized coal preparation system need to consider the spare of equipment chain or ability, and separate unit gasification furnace is corresponding
Coal dust preparation system equipment allowance is larger, and there are the wastings of resources.With the development of coal chemical industry the Enlargement Tendency, number is arranged in gasification furnace
Measure more and more, coal dust demand is also increasing.Conventional pulverized coal preparation and transportation system configuration will lead to gasification installation connection
It is excessive to close frame quantity, takes up a large area；Pulverized coal preparation and transportation system stand-by equipment quantity are excessive, and utilization rate is low, investment compared with
It is high；Single pulverized coal preparation series is only capable of being fed to separate unit gasification furnace, and system flexibility is poor.
Summary of the invention
Purpose of the utility model is to solve above-mentioned technical problem, a kind of design is provided rationally, safe and efficient, equipment
Utilization rate is high, can synchronize Xiang Duotai gasification furnace feed, is convenient for centralized operation and management, and coal dust conveying and allocation flexibility are high, throw
Provide the feed coal centralized system powder and transportation system low with operating cost.
Technical solution includes the more set coal dust preparation systems being arranged in a separate frame and covers pulverized coal preparations with more
System correspondingly more covers coal dust distributing system, and more set coal dust distributing systems share a coal dust pneumatic transporting in pairs
Pipeline is sent to connect with two to four coal dust bunkers；The coal dust preparation system include sequentially connected run coal bin, Gravimetric Coal Feeders,
Medium-speed pulverizer and coal collector, the discharge of the coal collector successively with rotary feeder, screw conveyor and
Coal fines fiber separator connection.
The gas vent of the coal collector is successively connect with circulating fan, fuel gas hot-blast stove and medium-speed pulverizer.
The coal dust distributing system includes and the sequentially connected coal dust surge bunker of coal fines fiber separator and sending cans.
Every coal dust pipeline pushes up switching valve by pipeline switching valve door or library and connects two to four coal dust bunkers.
The utility model has the advantages that
The utility model will cover coal dust preparation system and coal dust preparation system concentrated setting in a set of frame more, meet to
Simultaneously, stand-by equipment quantity can be also greatly decreased in the requirement of more gasification furnaces feed, improve utilization rate of equipment and installations, reduce equipment and throw
Money；Coal dust preparation system is arranged apart with gasification furnace, can reduce gasification frame height, saves construction investment, realizes more gasifications
Furnace merges arrangement, is convenient for centralized operation and management.
Coal dust from two or more pulverized coal preparation series can receive using the coal dust bunker of the utility model frame,
Coal pulverizer and gasification furnace can be made more flexible in matching for operation quantity and load, meanwhile, to the supply of the coal dust of gasification furnace
It is more reliable and more stable.
Detailed description of the invention
Fig. 1 is Tthe utility model system figure.
Wherein, 1- coal dust preparation system one, 1.1- run coal bin, 1.2- Gravimetric Coal Feeders, 1.3- medium-speed pulverizer, 1.4- coal
Powder collector, 1.5- circulating fan, 1.6- fuel gas hot-blast stove, 1.7- rotary feeder, 1.8- screw conveyor, 1.9- coal dust are fine
Tie up separator, 2- pulverized coal preparation system two, 3- coal dust preparation system three, 4- coal dust preparation system four, 5- coal dust preparation system five, 6-
Coal dust preparation system six, 11- coal dust surge bunker one, 12- coal dust surge bunker two, 13- coal dust surge bunker three, 14- coal dust surge bunker
Four, 15- coal dust surge bunker five, 16- coal dust surge bunker six, 21- sending cans one, 22- sending cans two, 23- sending cans three, 24- hair
Tank sending four, 25- sending cans five, 26- sending cans six, 31- coal dust pneumatic conveying pipeline one, 32- coal dust pneumatic conveying pipeline two,
33- coal dust pneumatic conveying pipeline three, 41- coal dust bunker one, 42- coal dust bunker two, 43- coal dust bunker three, 44- coal dust bunker
Four.
Specific embodiment
Explanation is further explained to the utility model with reference to the accompanying drawing:
Referring to Fig. 1, shared in the present embodiment six sets of coal dust preparation systems and one-to-one six sets of coal dust distributing systems and
Four coal dust bunkers.Wherein, more set coal dust distributing system share in pairs a coal dust pneumatic conveying pipeline and two to
Four coal dust bunker connections.Wherein, coal dust preparation system 1 is successively connect with coal dust surge bunker 1 and sending cans 1；Coal
Powder preparation system 22 is successively connect with coal dust surge bunker 2 12 and sending cans 2 22；Coal dust preparation system 33 is successively slow with coal dust
It rushes storehouse 3 13 and sending cans 3 23 connects；Coal dust preparation system 44 is successively connect with coal dust surge bunker 4 14 and sending cans 4 24；
Coal dust preparation system 55 is successively connect with coal dust surge bunker 5 15 and sending cans 5 25；Coal dust preparation system 66 successively with coal dust
Surge bunker 6 16 and sending cans 6 26 connect；And sending cans 1 and sending cans 2 22 through coal dust pneumatic conveying pipeline 1,
Pipeline switching valve door or library top switching valve are connect with coal dust bunker 1 and coal dust bunker 2 42 respectively；Sending cans 3 23 and transmission
Tank 4 24 through coal dust pneumatic conveying pipeline 2 32, pipeline switching valve door or library top switching valve respectively with coal dust bunker 1, coal dust
The connection of bunker 2 42, coal dust bunker 3 43 and coal dust bunker 4 44 connect；Sending cans 5 25 and sending cans 6 26 are through coal dust strength
Feed-line 3 33, pipeline switching valve door or library top switching valve are connect with coal dust bunker 3 43 and coal dust bunker 4 44 respectively.
Be illustrated for coal dust preparation system 1 to coal dust preparation system: coal dust preparation system 1 includes being sequentially connected
Run coal bin 1.1, Gravimetric Coal Feeders 1.2, medium-speed pulverizer 1.3 and coal collector 1.4, wherein the coal collector 1.4
Discharge successively connect with rotary feeder 1.7, screw conveyor 1.8 and coal fines fiber separator 1.9, the coal dust
The gas vent of collector 1.4 is successively connect with circulating fan 1.5, fuel gas hot-blast stove 1.6 and medium-speed pulverizer 1.3.
Be using the process flow of above system: the feed coal of release mesh (≤30mm) is stored in run coal bin 1.1, storehouse
The weighed feeder 1.2 of interior feed coal, which is fed into medium-speed pulverizer 1.3, is milled and is dried, and dried medium is combustion gas heat
In wind furnace 1.6 combustion product gases mixed with system circulation gas generate hot inert gas (temperature control at 150~450 DEG C, oxygen is wet
Base content < 8vol%), qualified coal dust is brought to coal collector 1.4 by hot inert gas and is separated and collected, and then passes through
Rotary feeder 1.7, screw conveyor 1.8 and coal fines fiber separator 1.9 are delivered to the storage of coal dust surge bunker 1.Coal dust is received
Storage 1.4 separate after circulating air pressurize through circulating fan 1.5, be largely recycled in fuel gas hot-blast stove 1.6 and with cigarette in furnace
Gas mixing is used as dried medium, is sent into medium-speed pulverizer 1.3 and feed coal (powder) is dried, fraction is put through delivery pipe
It is empty.After the drain tap and inlet valve of sending cans 1 are opened, the coal dust of coal dust surge bunker 1 falling under the effect of gravity
Enter sending cans 1, when sending cans 1 reach high charge level setting value, closes inlet valve and exhaust valve and open charge valve pair
Sending cans 1 carry out pressurising, and system automatically begins to send operation after pressure is raised to setting value, and coal dust passes through coal dust pneumatic conveying
Pipeline 1 is sent respectively to coal dust bunker 1 or coal dust bunker 2 42.When the pressure in sending cans 1 drops to setting value
Afterwards, charge valve is closed, time-delay closing outlet valve opens simultaneously exhaust valve, makes the pressure of sending cans 1 Yu coal dust surge bunker 1
Power reaches balance.Sending cans 1 and the shared coal dust pneumatic conveying pipeline 1 of sending cans 2 22, double tanks are alternately sent.Coal dust is defeated
Send by the way of low pressure dense phase pneumatic conveying, pumped (conveying) medium be heat low nitrogen (temperature control at 80~110 DEG C, pressure
0.7MPag)。
Coal dust from four coal dust preparation systems can receive using coal dust bunker each in the utility model, wherein
Coal dust bunker 1 and coal dust bunker 2 42, which can receive, comes from coal dust preparation system 1, coal dust preparation system 22, pulverized coal preparation
The coal dust of system 33 and coal dust preparation system 44, coal dust bunker 3 43 and the receivable coal dust preparation system three of coal dust bunker 4 44
3, the switching of the coal dust of coal dust preparation system 44, coal dust preparation system 55 and coal dust preparation system 66, coal dust distributing system is logical
The movement of pipeline switching valve is crossed to realize, the stability and reliability of the supply of gasification furnace coal dust has been effectively ensured.
Claims (4)
1. a kind of feed coal centralized system powder and transportation system, which is characterized in that including the more sets being arranged in a separate frame
Coal dust preparation system and with more set coal dust preparation systems correspondingly more covers coal dust distributing systems, it is described to cover coal dust transmission & distribution more
System shares a coal dust pneumatic conveying pipeline in pairs and connect with two to four coal dust bunkers；The coal dust preparation system packet
Include sequentially connected run coal bin, Gravimetric Coal Feeders, medium-speed pulverizer and coal collector, the discharge of the coal collector
Successively it is connect with rotary feeder, screw conveyor and coal fines fiber separator.
2. feed coal centralized system powder as described in claim 1 and transportation system, which is characterized in that the gas of the coal collector
Body outlet is successively connect with circulating fan, fuel gas hot-blast stove and medium-speed pulverizer.
3. feed coal centralized system powder as claimed in claim 1 or 2 and transportation system, which is characterized in that coal dust transmission & distribution system
System includes and the sequentially connected coal dust surge bunker of coal fines fiber separator and sending cans.
4. feed coal centralized system powder as described in claim 1 and transportation system, which is characterized in that every coal dust pipeline passes through pipeline
Switch valve or library top switching valve connect two to four coal dust bunkers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821696938.1U CN209081820U (en) | 2018-10-18 | 2018-10-18 | A kind of feed coal centralized system powder and transportation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821696938.1U CN209081820U (en) | 2018-10-18 | 2018-10-18 | A kind of feed coal centralized system powder and transportation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209081820U true CN209081820U (en) | 2019-07-09 |
Family
ID=67119834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821696938.1U Active CN209081820U (en) | 2018-10-18 | 2018-10-18 | A kind of feed coal centralized system powder and transportation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209081820U (en) |
-
2018
- 2018-10-18 CN CN201821696938.1U patent/CN209081820U/en active Active
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