CN207727037U - A kind of coal dust current stabilization conveying device - Google Patents
A kind of coal dust current stabilization conveying device Download PDFInfo
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- CN207727037U CN207727037U CN201721724987.7U CN201721724987U CN207727037U CN 207727037 U CN207727037 U CN 207727037U CN 201721724987 U CN201721724987 U CN 201721724987U CN 207727037 U CN207727037 U CN 207727037U
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- cone
- coal dust
- feedstock vessel
- coal
- partition board
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Abstract
Be using inert gas include nitrogen and carbon dioxide Dense Phase Pneumatic Conveying dry pulverized coal to pressurized-gasification furnace the utility model discloses a kind of coal dust current stabilization conveying device, stablizes flow velocity to obtain close phase pressurization coal dust；The device includes feedstock vessel, feedstock vessel cone, ventilation cone, partition board, fixture block, feed-line and air distribution plate；In the cone position weld clip block of coal dust feedstock vessel, partition board is clamped, space in tapering is separated into several lower material spaces；Can steadily respectively to two even a plurality of coal burner pulverized coal conveying, avoid because coal dust conveying capacity fluctuation to cause gasify in-furnace temperature it is unstable due to influences normally gasify run and equipment damage, also save cost of investment.
Description
Technical field
The utility model belongs to coal dust conveying technology field, more particularly to a kind of coal dust current stabilization conveying device.
Background technology
The natural resources in China is with " rich coal, oil-poor, few gas " for basic characteristics, this just determines that coal will be in primary energy
Prodigious proportion is accounted in the consumption of source.Compared with petroleum gas, the coal reserves in China is relatively large, and China is also the world
First big coal country.Coal is directly low using not only efficiency, but also causes serious pollution to air, soil and water quality, in order to
It improves the utilization ratio of coal, reduce pollution, risen the research and development for utilizing technology to clean coal both at home and abroad, wherein coal
Gasification is the core technology of coal clean utilization, is the leading technology of IGCC power generation and coal chemical technology.According to coal needed for gasification
Flow regime in gasification furnace of granular size and particle, gasification furnace is generally divided into three classes, i.e., fixed bed, fluid bed are gentle
Fluidized bed gasification technology.Different shape of the entrained flow bed gasification technology to feed is divided into dry pulverized coal and coal water slurry gasification technology, and dry
In coal dust gasification technique, dry pulverized coal two-phase transportation is one of the key technology of dry coal powder airflow bed gasification.The current stabilization of coal dust conveys
It is the premise of dry coal powder airflow bed gasification stable operation.The double-section dry coal powder pressurizing gasifying apparatus of China's independent intellectual property right is answered
With the close phase pressurization conveying technology of dry pulverized coal, using single cone multiple branch circuit top discharge or bore multiple branch circuit bottom discharge structure type more,
Fluidized plate of the pot bottom setting perpendicular to coal dust nozzle is conveyed, can ensure the continuous accurate pulverized coal conveying as required of coal dust.
But it is difficult in actual operation there is also multiple branch circuit while desired value adjusts conveying capacity and has the problem of powder carry interference mutually.
Invention content
The utility model be directed to multiple branch circuit coal dust feed-line singly bore transfer pot equipment in can not meet simultaneously it is branched
The balance and stability of road seam operation, operating status need more to improve to meet the increasing requirement of Industry Control,
And then a kind of coal dust current stabilization conveying device and carrying method are provided, the device and method can uniformly, steadily to gasifying furnace nozzle
Coal dust is supplied, this method has the effect of economical, efficient, safe and easy to operate.
In order to achieve the above object, the technical solution of the utility model is：
A kind of coal dust current stabilization conveying device, including feedstock vessel 1,1 lower part of feedstock vessel are feedstock vessel cone 2, feedstock vessel cone 2
Bottom is communicated with ventilation cone 3, and air distribution plate 7 is provided in ventilation cone 3, and 2 inner wall symmetric position of feedstock vessel cone is welded with multigroup folder
Block 5, every group of fixture block 5 clamp a partition board 4, and space in feedstock vessel cone 2 is separated into several lower material spaces by multiple partition boards 4；It is defeated
It send pipeline 6 to be inserted into from 1 top of feedstock vessel and stretches into feedstock vessel cone 2, the nozzle of feed-line 6 is protected at a distance from air distribution plate 7
It holds within the scope of 50~300mm, Boiler pressure control valve is provided on feed-line 6.
There are free gaps between the fixture block 5 and partition board 4, can produce relative sliding.
The partition board 4 that air distribution plate 7 is closed in the feedstock vessel cone 2 is less than 20mm at a distance from air distribution plate 7.
4 thickness of the partition board is 10-30mm, material Q345.
Utility model is compared to the prior art compared with the utility model has the following advantages that：
1, the coal dust current stabilization conveying device of the utility model not only can guarantee that blanking, discharging were smooth, but also can be defeated by extra quality pipeline
Interacting when sending minimizes.
2, in coal dust transmission process, to the cone position weld clip block of coal dust feedstock vessel, partition board is clamped, it is flat to reach seam
Steady operation.
Description of the drawings
Fig. 1 is the utility model coal dust current stabilization conveying device schematic diagram.
Fig. 2 is baffle arrangement schematic diagram.
Fig. 3 is partition board scheme of installation.
Specific implementation mode
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of coal dust current stabilization conveying device of the utility model, including feedstock vessel 1, feedstock vessel cone 2, ventilation
Cone 3, partition board 4, fixture block 5, feed-line 6 and air distribution plate 7；1 lower part of feedstock vessel is feedstock vessel cone 2, and 2 bottom of feedstock vessel cone connects
It is connected with ventilation cone 3, air distribution plate 7 is provided in ventilation cone 3,2 inner wall symmetric position of feedstock vessel cone is welded with multigroup fixture block 5, often
Group fixture block 5 clamps a partition board 4, and space in feedstock vessel cone 2 is separated into several lower material spaces by multiple partition boards 4；Feed-line 6
It being inserted into and is stretched into feedstock vessel cone 2 from 1 top of feedstock vessel, the nozzle of feed-line 6 is maintained at 50 at a distance from air distribution plate 7~
Within the scope of 300mm, Boiler pressure control valve is provided on feed-line 6.
Fixture block is welded at 2 position of cone of feedstock vessel, as shown in Figure 2；Fixture block 5 clamps partition board 3, as shown in Figure 3；Feedstock vessel
2 space of cone is separated into several lower material spaces, as shown in Figure 2.
As preferred embodiments of the present invention, there are free gaps between the fixture block 5 and partition board 4, can generate
Opposite sliding；Take such design mainly in view of equipment caused by gravity or thermal stress is stretched uneven and causes to be fed
Tank 1 damages, and protection equipment has saved cost of investment.
As preferred embodiments of the present invention, the partition board 4 and cloth of air distribution plate 7 are closed in the feedstock vessel cone 2
The distance of aerofoil 7 is less than 20mm；By this mounting distance, it can utmostly optimize conveying gas-solid ratio, it also can be to a certain extent
Reduce the mutual disturbance between coal dust feed-line.
As preferred embodiments of the present invention, 4 thickness of the partition board is 10-30mm, material Q345.
The carrying method of the utility model coal dust current stabilization conveying device, feedstock vessel 1 store a large amount of coal dusts, in normally conveying feelings
Under condition, according to coal dust amount needed for gasification furnace Load Regulation, opens and made by the inert gas (nitrogen and carbon dioxide) that the external world introduces
For fluidized wind, fluidized wind is entered feedstock vessel cone by the Boiler pressure control valve in conjunction with feed-line 6 and corresponding discharging control valve door
Body 2 and ventilation cone 3, by being fluidized to the coal dust of feedstock vessel 1 after air distribution plate 7, the coal dust being fluidized is made in high-pressure delivery wind
It is sent under to coal burner.
Claims (4)
1. a kind of coal dust current stabilization conveying device, including feedstock vessel (1), it is characterised in that：Feedstock vessel (1) lower part is feedstock vessel cone
(2), feedstock vessel cone (2) bottom is communicated with ventilation cone (3), and air distribution plate (7), feedstock vessel cone (2) are provided in ventilation cone (3)
Inner wall symmetric position is welded with multigroup fixture block (5), and every group of fixture block (5) clamps a partition board (4), and multiple partition boards (4) are by feedstock vessel
Cone (2) interior space is separated into several lower material spaces；Feed-line (6) is inserted into from feedstock vessel (1) top and stretches into feedstock vessel cone
In body (2), the nozzle of feed-line (6) is maintained at a distance from air distribution plate (7) within the scope of 50~300mm, on feed-line (6)
It is provided with Boiler pressure control valve.
2. a kind of coal dust current stabilization conveying device according to claim 1, it is characterised in that：The fixture block (5) and partition board (4)
Between there are free gaps, can produce relative sliding.
3. a kind of coal dust current stabilization conveying device according to claim 1, it is characterised in that：On the feedstock vessel cone (2)
The partition board (4) for closing on air distribution plate (7) is less than 20mm at a distance from air distribution plate (7).
4. a kind of coal dust current stabilization conveying device according to claim 1, it is characterised in that：Partition board (4) thickness is 10-
30mm, material Q345.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721724987.7U CN207727037U (en) | 2017-12-12 | 2017-12-12 | A kind of coal dust current stabilization conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721724987.7U CN207727037U (en) | 2017-12-12 | 2017-12-12 | A kind of coal dust current stabilization conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207727037U true CN207727037U (en) | 2018-08-14 |
Family
ID=63097290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721724987.7U Active CN207727037U (en) | 2017-12-12 | 2017-12-12 | A kind of coal dust current stabilization conveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207727037U (en) |
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2017
- 2017-12-12 CN CN201721724987.7U patent/CN207727037U/en active Active
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