CN203682619U - Coal powder conveying device - Google Patents
Coal powder conveying device Download PDFInfo
- Publication number
- CN203682619U CN203682619U CN201420013957.5U CN201420013957U CN203682619U CN 203682619 U CN203682619 U CN 203682619U CN 201420013957 U CN201420013957 U CN 201420013957U CN 203682619 U CN203682619 U CN 203682619U
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- China
- Prior art keywords
- cylindrical shell
- conveying device
- coal
- end socket
- pulverized coal
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- Expired - Lifetime
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- 239000003245 coal Substances 0.000 title claims abstract description 74
- 239000000843 powder Substances 0.000 title abstract description 12
- 230000002459 sustained effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 238000002309 gasification Methods 0.000 abstract description 6
- 238000005243 fluidization Methods 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 239000002817 coal dust Substances 0.000 description 24
- 239000007789 gas Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005507 spraying Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Abstract
The utility model discloses a coal powder conveying device. The coal powder conveying device comprises a top end socket, a first cylinder, a second cylinder, a third cylinder and an air chamber. At least one coal inlet and at least one coal outlet are formed in the top end socket. The coal outlets are communicated with coal outlet pipes extending into the coal powder conveying device. The top ends of the coal outlet pipes are fixedly connected with the top end socket. The bottom ends of the coal outlet pipes extend to the middle portion of the third cylinder. First air inlets arrayed in multiple layers are formed in the cylinder wall of the second cylinder in the vertical direction. At least one second air inlet is formed in the cylinder wall of the third cylinder and communicated with an annular pipeline inside the third cylinder, the annular pipeline is arranged in the horizontal direction, and a plurality of spray nozzles are arranged on the annular pipeline. The air chamber is composed of an upper fluidization plate, a middle cavity and a bottom end socket, and at least one third air inlet is formed in the bottom end socket. The coal powder conveying device can evenly and stably supply coal powder to a pressurization gasification device.
Description
Technical field
The utility model relates to a kind of closed phase conveyer of powder material, relates in particular to a kind of pulverized coal conveying device.
Background technology
Powder pneumatic conveying technology is a kind of method of utilizing gas energy conveying solid substance particle, has machinery and carries not available preceence, as simple in equipment, flexible arrangement, is easy to gather dust etc.For example, when powder pneumatic conveying technology (Dense Phase Pneumatic Conveying technology) is during for coal dust, there is the advantages such as transport efficiency is high, energy consumption is low, pipe wear is light.
At present, coal dust gasification technology is just playing a part to become more and more important in Filter Tuber For Clean Coal field, and the Dense Phase Pneumatic Conveying technology of coal dust is one of most critical technology wherein.But there are the following problems for the Dense Phase Pneumatic Conveying technology of coal dust: in the unit time, mobile Dust Capacity must be constant, otherwise, easily cause gasification installation to stop, affect long-term operation, even can make the key equipments such as gasification furnace damage, cause heavy losses.
CN1164716C discloses the charging process of coal dust in a kind of coal dust pressurized gasification process, batch can in the middle of coal dust is sent into, with noble gas to middle batch can pressurising, the coupled high-pressure powdered coal storehouse of pressure in the middle of making in batch can is identical, the middle batch can control cock of batch can bottom in the middle of opening, and be connected to the equalizing pipe control cock on the equalizing pipe between middle batch can and high-pressure powdered coal storehouse, fine coal enters high-pressure powdered coal storehouse, then enter mixer through rotatory feeder valve, carry and enter gasification furnace by carrier gas.But the method need to be controlled feeding coal by rotatory feeder valve.This feedway with the mechanical gyro unit such as valve and screw feeder, is unfavorable for that under high pressure operating mode, coal dust continous-stable is carried.
CN2808837Y discloses a kind of pressurization of dry pulverized coal closed phase conveyer of multiple branch circuit discharging, comprise normal pressure pulverized coal storehouse and be attached thereto logical transformation storehouse, the gas access in transformation storehouse is connected with punching press nitrogen pot, the discharge in transformation storehouse is connected with pressurization storehouse, the gas vent in transformation storehouse is connected with filter and pressurization storehouse, the gas access in pressurization storehouse is connected with punching press nitrogen pot, the discharge in pressurization storehouse is connected with powder distributor, the lower end of powder distributor is also connected with pressurized nitrogen pipeline, the outlet of powder distributor is also provided with diverter branch pipeline.But this device need to install mixer additional in its bottom; This mixer, at easy et out of order in real-world operation, affects the long-period stable operation of device.
Therefore, still there is no a kind of pulverized coal conveying device from coal dust to pressurized gasifier that can supply with uniformly and stably at present.
Utility model content
In order to overcome above-mentioned defect, present inventor conducts in-depth research, thereby completes the utility model.
The purpose of this utility model is to provide a kind of pulverized coal conveying device, and it can supply with coal dust to pressurized gasifier uniformly and stably.
The utility model provides a kind of pulverized coal conveying device, and this device comprises top end socket, the first cylindrical shell, the second cylindrical shell, the 3rd cylindrical shell and air chamber; The bottom of described top end socket is connected with the top seal of the first cylindrical shell, and the bottom of the first cylindrical shell is connected with the top seal of the second cylindrical shell, and the bottom of the second cylindrical shell is connected with the top seal of the 3rd cylindrical shell, and the bottom of the 3rd cylindrical shell is connected with air chamber sealing;
On described top end socket, be provided with at least one coal-in port and at least one coal outlet; This coal outlet is connected with the coal output pipe that stretches into this device inside; The top of this coal output pipe and top end socket are affixed, and the bottom of this coal output pipe extends to the middle part of the 3rd cylindrical shell;
On the barrel of the second cylindrical shell, be provided with the first admission port that multilayer is arranged on vertically;
On the barrel of the 3rd cylindrical shell, be provided with at least one second admission port, this second admission port is connected with the circulating line of the 3rd inner barrel, arranges, and be provided with multiple shower nozzles on this circulating line along continuous straight runs on this circulating line;
Described air chamber is made up of top fluidized plate, middle cavity and bottom bulkhead, is provided with at least one the 3rd admission port on this bottom bulkhead.
Described in the utility model being tightly connected is known in the art those, and for example flange connects, and welding, is threaded, and cutting ferrule connects, anulated connection etc.Preferably, of the present utility model being tightly connected as flange connection or welding.
According to pulverized coal conveying device described in the utility model, preferably, the first admission port that multilayer is arranged is at least two-layer; For example two-layer, three layers, four layers or five layers.The quantity of every layer of first admission port can be at least two, is preferably 3-8, more preferably 5-6.Preferably, in the first admission port of arranging in multilayer, the first admission port (being every layer of first admission port) on sustained height is uniformly distributed along the barrel of the second cylindrical shell.Can guarantee like this homogeneity of air-flow in pulverized coal conveying device.
According to pulverized coal conveying device described in the utility model, this circulating line is provided with multiple shower nozzles, for spraying gas.Shower nozzle number of the present utility model can be at least two, is preferably 3-20, more preferably 5-8.Preferably, shower nozzle of the present utility model is evenly distributed on circulating line.As preferably, the nozzle direction of described shower nozzle (spraying the method for air-flow) is consistent, and for example, the nozzle direction of described shower nozzle is all clockwise direction or is all anticlockwise direction.
According to pulverized coal conveying device described in the utility model, described circulating line is annular arrangement pipeline, or the circulating line being formed by multiple arc shape pipelines.The number (N) >=1 of the second admission port on the barrel of the 3rd cylindrical shell.In the time of N=1, can be made as an annular arrangement pipeline; In the time of N=2, can be made as two semicircle circulating lines; In the time of N=3, can be made as three arc shape pipelines.Circulating line of the present utility model is preferably annular arrangement pipeline.
According to pulverized coal conveying device described in the utility model, the second described admission port can be at least two, is preferably 2-6, more preferably 3-5.The second admission port of the present utility model is preferably arranged on sustained height.Preferably, the second admission port of the present utility model is uniformly distributed along the barrel of the second cylindrical shell.Can guarantee like this homogeneity of air-flow in pulverized coal conveying device, to strengthen the fluid effect of coal dust.
According to pulverized coal conveying device described in the utility model, the shape of described top end socket is not particularly limited.As preferably, can be ellipse head, semi-round ball end socket.As more preferably, top of the present utility model end socket is ellipse head.The first cylindrical shell of the present utility model, the second cylindrical shell, the 3rd cylindrical shell are tightly connected successively, form the agent structure of device described in the utility model.The first cylindrical shell of the present utility model can be cylindrical tube, and the second cylindrical shell can be funnel-form the second cylindrical shell, and the 3rd cylindrical shell can be cylindrical tube.Like this, be conducive to improve the fluid effect of coal dust, and supply with uniformly and stably coal dust to pressurized gasifier.
According to pulverized coal conveying device described in the utility model, described coal-in port can be at least two, is preferably 2-6, more preferably 3-5.Coal outlet of the present utility model can be at least two, is preferably 2-6, more preferably 3-5, supplies with coal dust thereby realize multiple branch circuit.
According to pulverized coal conveying device described in the utility model, on described top end socket, be also provided with at least one pressure tap and at least one exhausr port.Optionally, on described top end socket, be also provided with at least one reserved opening, for realizing other functions.
According to pulverized coal conveying device described in the utility model, be provided with material-height exploring mouth in barrel top, the barrel bottom of the first cylindrical shell and/or the barrel bottom of the 3rd cylindrical shell of the first cylindrical shell.Preferably, on the barrel top of the first cylindrical shell (for example, near the position of top end socket), the barrel bottom of the barrel bottom of the first cylindrical shell the position of the second cylindrical shell (for example, near) and the 3rd cylindrical shell the position of air chamber (for example, near) be respectively equipped with material-height exploring mouth.As preferably, the position of material-height exploring mouth on the barrel of the first cylindrical shell can be 9/10 place of the first cylindrical shell whole height, is preferably 19/20 place, more preferably 29/30 place.As preferably, the position of material-height exploring mouth on the barrel of the first cylindrical shell can be 1/5 place of the first cylindrical shell whole height, is preferably 1/10 place, more preferably 1/20 place.As preferably, the position of material-height exploring mouth on the barrel of the 3rd cylindrical shell is 1/5 place of the 3rd cylindrical shell whole height, is preferably 1/10 place, more preferably 1/20 place.
Pulverized coal conveying device of the present utility model adopts multiple admission port, by strength effect, coal dust is disperseed and carries, and avoids the loss of mechanical controling part; Meanwhile, device of the present utility model adopts the mode of top discharge, is conducive to the quantitative conveying of coal dust.Therefore, pulverized coal conveying device of the present utility model can be carried coal dust uniformly and stably to pressurized gasifier.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of pulverized coal conveying device of the present utility model.
Fig. 2 is the second admission port and circulating line schematic diagram.
The specific embodiment
Below with reference to accompanying drawing, the utility model is made to more detailed description, but protection domain of the present utility model is not intended to limit this.
As depicted in figs. 1 and 2, pulverized coal conveying device of the present utility model comprises ellipse head 10, cylindrical the first cylindrical shell 20, funnel-form the second cylindrical shell 30 and cylindrical the 3rd cylindrical shell 40 and air chamber 50.The top of this device is ellipse head 10, ellipse head 10 bottoms and cylindrical the first cylindrical shell 20 are tightly connected, cylindrical the first cylindrical shell 20 bottoms with connect funnel-form the second cylindrical shell 30 and be tightly connected, funnel-form the second cylindrical shell 30 bottoms and cylindrical the 3rd cylindrical shell 40 are tightly connected, and cylindrical the 3rd cylindrical shell 40 bottoms and air chamber 50 are tightly connected.
The outside of the ellipse head 10 of pulverized coal conveying device of the present utility model is provided with two coal-in ports 1, three coal outlets 2, pressure tap 3, exhausr port 6 and reserved opening 5.Top (i.e. 9/10 place of the first cylindrical shell whole height), bottom (1/10 place of the first cylindrical shell whole height) and cylindrical the 3rd cylindrical shell 40 bottoms (1/10 place of the 3rd cylindrical shell whole height) of cylindrical the first cylindrical shell 20 are respectively equipped with first, second, third material-height exploring mouth 41,42,43.Coal-in port 1 (not shown) that is connected with coal storage device by pipeline.One end of coal outlet 2 is connected with the coal output pipe 60 that stretches into this device inside.The other end of coal outlet 2 is connected with pressurized gasifier (not shown) by pipeline, for supplying with uniformly and stably coal dust to pressurized gasifier.The top of coal output pipe 60 and top end socket 10 are affixed, and the bottom of this coal output pipe 60 extends to the middle part of cylindrical the 3rd cylindrical shell 40.
On the barrel of funnel-form second cylindrical shell 30 of pulverized coal conveying device of the present utility model, be vertically provided with three layer of first admission port 7.This first admission port 7 is fluidized gas entrance.The first admission port 7 of sustained height is 6 (not shown)s, and along being evenly arranged on the barrel of funnel-form the second cylindrical shell 30.
On cylindrical the 3rd cylindrical shell 40 of pulverized coal conveying device of the present utility model, be provided with two the second admission ports 8, above-mentioned the second admission port 8 is connected with the annular arrangement pipeline 14 of cylindrical the 3rd cylindrical shell 40 inside.This annular arrangement pipeline 14 is provided with 8 shower nozzles 15, for spraying gas.The nozzle direction (spraying the method for air-flow) of described shower nozzle 15 is consistent, and for example, the nozzle direction of described shower nozzle 15 is all anticlockwise direction (as Fig. 2).Above-mentioned shower nozzle 15 allow gas by and coal dust can not pass through, this be known in the art those, repeat no more here.
In pulverized coal conveying device of the present utility model, air chamber 50 is made up of top fluidized plate 11, middle cavity 13 and bottom bulkhead 12.Top fluidized plate 11 only allow gas by and coal dust can not pass through, this be known in the art those, repeat no more here.On bottom bulkhead 12, be provided with the 3rd admission port 9.
Add coal dust in this pulverized coal conveying device time, in the time that material level reaches the first material-height exploring mouth 41 of cylindrical the first cylindrical shell 20, stop adding coal dust to this feed arrangement; When material level is during lower than the second material-height exploring mouth 42 of cylindrical the first cylindrical shell 20, should add coal dust to this device in time.In whole coal dust course of conveying, the second admission port 8 and the 3rd admission port 9 remain open mode, the first admission port 7 tunes up or turns down according to the size of operating mode load, and exhausr port 6 keeps closed condition conventionally, only just opens during higher than setting pressure in this device internal pressure.
Claims (10)
1. a pulverized coal conveying device, this device comprises top end socket, the first cylindrical shell, the second cylindrical shell, the 3rd cylindrical shell and air chamber, it is characterized in that:
The bottom of described top end socket is connected with the top seal of the first cylindrical shell, and the bottom of the first cylindrical shell is connected with the top seal of the second cylindrical shell, and the bottom of the second cylindrical shell is connected with the top seal of the 3rd cylindrical shell, and the bottom of the 3rd cylindrical shell is connected with air chamber sealing;
On described top end socket, be provided with at least one coal-in port and at least one coal outlet; This coal outlet is connected with the coal output pipe that stretches into this device inside; The top of this coal output pipe and described top end socket are affixed, and the bottom of this coal output pipe extends to the middle part of the 3rd cylindrical shell;
On the barrel of the second cylindrical shell, be provided with the first admission port that multilayer is arranged on vertically;
On the barrel of the 3rd cylindrical shell, be provided with at least one second admission port, this second admission port is connected with the circulating line of the 3rd inner barrel, arranges, and be provided with multiple shower nozzles on this circulating line along continuous straight runs on this circulating line;
Described air chamber is made up of top fluidized plate, middle cavity and bottom bulkhead, is provided with at least one the 3rd admission port on this bottom bulkhead.
2. pulverized coal conveying device according to claim 1, is characterized in that, in the first admission port of arranging in multilayer, the first admission port on sustained height is uniformly distributed along the barrel of the second cylindrical shell.
3. pulverized coal conveying device according to claim 1, is characterized in that, the nozzle direction of described shower nozzle is all clockwise direction or is all anticlockwise direction.
4. pulverized coal conveying device according to claim 1, is characterized in that, described circulating line is annular arrangement pipeline.
5. pulverized coal conveying device according to claim 1, is characterized in that, the second described admission port is at least two.
6. pulverized coal conveying device according to claim 1, is characterized in that, described top end socket is ellipse head, and the first cylindrical shell is cylindrical tube, and the second cylindrical shell is funnel-form cylindrical shell, and the 3rd cylindrical shell is cylindrical tube.
7. pulverized coal conveying device according to claim 1, is characterized in that, described coal-in port is at least two; Described coal outlet is at least two.
8. pulverized coal conveying device according to claim 7, is characterized in that, described coal outlet is 3-5.
9. pulverized coal conveying device according to claim 1, is characterized in that, on described top end socket, is also provided with pressure tap and exhausr port.
10. pulverized coal conveying device according to claim 1, is characterized in that, is respectively equipped with material-height exploring mouth in barrel top, the barrel bottom of the first cylindrical shell and the barrel bottom of the 3rd cylindrical shell of the first cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013957.5U CN203682619U (en) | 2014-01-09 | 2014-01-09 | Coal powder conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013957.5U CN203682619U (en) | 2014-01-09 | 2014-01-09 | Coal powder conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203682619U true CN203682619U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420013957.5U Expired - Lifetime CN203682619U (en) | 2014-01-09 | 2014-01-09 | Coal powder conveying device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203682619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446459A (en) * | 2021-08-11 | 2021-09-28 | 河北西柏坡发电有限责任公司 | Wear-proof device for pulverized coal pipeline |
-
2014
- 2014-01-09 CN CN201420013957.5U patent/CN203682619U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446459A (en) * | 2021-08-11 | 2021-09-28 | 河北西柏坡发电有限责任公司 | Wear-proof device for pulverized coal pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |