CN103789044B - Coal powder conveying device - Google Patents
Coal powder conveying device Download PDFInfo
- Publication number
- CN103789044B CN103789044B CN201410030708.1A CN201410030708A CN103789044B CN 103789044 B CN103789044 B CN 103789044B CN 201410030708 A CN201410030708 A CN 201410030708A CN 103789044 B CN103789044 B CN 103789044B
- Authority
- CN
- China
- Prior art keywords
- feed hopper
- pipeline
- coal
- pressure
- hopper
- Prior art date
- 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.)
- Active
Links
- 239000003245 coal Substances 0.000 title claims abstract description 84
- 239000000843 powder Substances 0.000 title abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 79
- 239000012159 carrier gas Substances 0.000 claims abstract description 23
- 239000002817 coal dust Substances 0.000 claims description 65
- 239000000463 material Substances 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000011067 equilibration Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000002309 gasification Methods 0.000 abstract description 12
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000005243 fluidization Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000012791 sliding layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Abstract
The invention relates to a coal powder conveying device which comprises a coal grinder, wherein a raw coal inlet is formed in the coal grinder; an outlet of the coal grinder is connected with an inlet of a coal powder filter; an outlet positioned in the lower side of the coal powder filter is connected with a spiral feeder, a normal pressure cabin and a lock bucket through pipelines in sequence from top to bottom; an outlet pipeline of the lock bucket is communicated with a carrier gas pipeline and is connected with an inlet of a feeding cabin above the coal powder filter through the carrier gas pipeline; an outlet in the bottom of the feeding cabin is connected with a mechanical feeding device below the feeding cabin; an outlet positioned in the lower side of the mechanical feeding device is connected with a gas coning part and a burning nozzle of a gasification furnace through pipelines in sequence from top to bottom, and coal powder is sprayed into the gasification furnace through the burning nozzle; the burning nozzle of the gasification furnace is lower than the feeding cabin, and the lock bucket is arranged below the burning nozzle of the gasification furnace. The coal powder conveying device has the characteristics of stability in coal powder conveying, accuracy in metering, energy conservation, consumption reduction and the like, and is capable of reducing carrier gas entering the furnace.
Description
Technical field
The present invention relates to the e Foerderanlage in a kind of coal chemical technology, particularly about a kind of pulverized coal conveying device be applied in air flow bed coal dust gasification.
Background technology
Gasification is the core technology of Coal Clean efficiency utilization, is also the tap of the process industrials such as Coal Chemical Industry, integrated gasification combined cycle for power generation, direct reduction iron making.It is wide that coal dust gasification has coal adaptability, effective gas composition is high, than coal consumption and advantage lower etc. than oxygen consumption, be the important directions of current entrained flow gasification development, continuously, coal dust supply technology that is stable, controllable precise is then gordian technique in breeze airflow bed gasification technology.The existing e Foerderanlage being applied to air flow bed coal dust gasification mainly contains two kinds of modes: one take Shell as representative; Another kind take GSP as representative.These two kinds of pulverized coal conveying devices all adopt lock hopper technology, namely by lock hopper, coal dust are delivered to feed hopper from normal pressure storehouse, and coal dust in feed hopper after fluidisation, then adopts carrier gas (N
2or CO
2) coal dust is delivered to gasifier nozzle by the mode of two-phase transportation.Both are different unlike the discharge method of feed hopper, and namely Shell adopts the form from feed hopper bottom discharge, and GSP adopts from feed hopper top discharge.Two-phase transportation is wider in air flow bed coal dust delivery application at present, technology relative maturity, its conveying gas speed is between 8 ~ 15m/s, coal dust distributes and uneven in pipeline, but in obvious laminar flow, upper strata is suspension fluid layer, and lower floor is the sliding layer of particle swarm along tube wall, and conveying solid and gas mass ratio is generally between 10 ~ 100kg/kg.Shell and GSP coal powder conveying system is all the feed hopper modes by two-phase transportation from being positioned at low level, directly be delivered to the vapourizing furnace being positioned at high level, whole coal dust course of conveying adopts complicated sequence logical control works fine, therefore in coal dust course of conveying coal dust distribution homogeneity and stability requirement fine, for guaranteeing the steady running of whole system, comparatively responsive to coal dust conveying solid-gas ratio.If solid-gas ratio is lower, then energy consumption is high, less economical, and pipe wear is serious; If solid-gas ratio exceedes two-phase transportation solid-gas ratio scope, then carry instability, flow rate fluctuation is violent.But the pulverized coal conveying device of existing employing two-phase transportation mode still comes with some shortcomings: 1, coal dust conveying is unstable, fluctuation is comparatively large, affects vapourizing furnace steady running.2, coal powder metering tolerance range lower and be difficult to control.3, delivery of carrier gas usage quantity is comparatively large, and solid-gas ratio is difficult to improve, and because the carrier gas of pulverized coal conveying all enters in vapourizing furnace, therefore finally affects vapourizing furnace aerogenesis quality.4, appliance arrangement is many, and especially Detection & Controling equipment is many, have employed complicated sequential control, and regulating loop and technique interlocking, whole e Foerderanlage robustness is poor.5, existing pulverized coal conveying device, is difficult to break through more than 4MPa transfer pressure.6, existing pulverized coal conveying device, is carried to high-order vapourizing furnace by the feed hopper of low level, therefore increases conveying difficulty.7, when lock hopper is fed in raw material to feed hopper, be subject to lock hopper coal dust gravitational thrusts because breeze material position is instantaneous, " coal dust static pressure difference " increases severely, and the instantaneous powder fluidized having a strong impact on feed hopper gas coning of meeting, feeding coal reduces sharply, the big ups and downs of vapourizing furnace pressure.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of pulverized coal conveying device, this device effectively can improve the stability of as-fired coal powder conveying and the accuracy of metering, and effectively solves into problems such as stove carrier gas are large.
For achieving the above object, the present invention takes following technical scheme: a kind of pulverized coal conveying device, is characterized in that: it comprises the burner in coal pulverizer, coal fine filter, screw feeder, normal pressure storehouse, lock hopper, feed hopper, mechanical feeding device, gas coning, vapourizing furnace and vapourizing furnace; Described coal pulverizer is provided with raw coal entrance, and the outlet of described coal pulverizer connects described coal fine filter entrance by pipeline; Be positioned at below described coal fine filter, described coal fine filter outlet connects described screw feeder, normal pressure storehouse and lock hopper from top to bottom by the road successively; Described lock hopper export pipeline is communicated with the gas-carrier pipeline for inputting carrier gas transfer coal dust, connects the described feed hopper import be positioned at above described vapourizing furnace burner through described gas-carrier pipeline; Described feed hopper outlet at bottom connects described mechanical feeding device, and described mechanical feeding device is positioned at below described feed hopper; Be positioned at below described mechanical feeding device, described mechanical feeding device outlet connects the burner of described gas coning and vapourizing furnace by the road from top to bottom successively, and coal dust sprays through described burner and enters described vapourizing furnace; The burner position of described vapourizing furnace is lower than the position of described feed hopper, and described normal pressure storehouse horizontal installation position is higher than described lock hopper, and described feed hopper horizontal installation position is higher than described lock hopper, and described lock hopper is positioned at below described vapourizing furnace burner.
Described mechanical feeding device adopts rotary pocket feeder or screw feeder; During described mechanical feeding device employing screw feeder, described screw feeder one end is placed in described feed hopper, and the other end connects described gas coning.
Described feed hopper and mechanical feeding device and described gas coning are arranged to integral structure, and it is inner that described feed hopper bottom is included in described gas coning, and it is inner that described mechanical feeding device is all included in described gas coning, and be positioned at described gas coning internal upper part; And described mechanical feeding device one end connects described feed hopper, the other end is positioned at described gas coning.
Described gas coning adopts metal sintering mode to make sandwich structure, described gas coning top is also connected with vapor pipe, and is provided with in described gas coning for too much coal dust is back to the equilibration tube of described feed hopper through described vapor pipe with described feed hopper equilibrium pressure and is used for detecting breeze material position in described gas coning and whether exceeds the coal dust liquid level detection device of predetermined material level scope.
Pipeline on pipeline between described normal pressure storehouse and described lock hopper, on the pipeline of described lock hopper exit and between described gas-carrier pipeline and described feed hopper is provided with coal dust control valve; Between described normal pressure storehouse and described lock hopper, be also connected with pressure equilibrium pipeline, described pressure equilibrium pipeline is provided with pressure-balanced valve; Described lock hopper is also provided with pressure relief pipe and pressurising pipeline.
Be delivered in described feed hopper for the carrier gas of pulverized coal conveying in the mode of plug flow or Dense Phase Pneumatic Conveying in described gas-carrier pipeline; Be provided with taper flow gasifying device bottom described feed hopper, and described feed hopper outlet at bottom is conical outlet, this conical outlet is more than one, and conical outlet described in each is correspondingly provided with a described mechanical feeding device; Also be provided with pressure relief pipe, pressurising pipeline and pressure-balanced valve in described feed hopper, the breeze material position in described feed hopper and pressure must maintain definite value and pressure higher than the pressure in described vapourizing furnace.
Described gas coning adopts from high to low feeding style downwards to gasifier nozzle feeding.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the technical solution used in the present invention overcomes the deficiency of existing pulverized coal conveying device, solve the conveying of entrained flow gasification as-fired coal powder unstable, metering is not high with control accuracy, enter the problems such as stove carrier gas is large, finally make coal powder conveying system meet gasifier operation requirement.2, the present invention is owing to being delivered to the feed hopper be positioned at above vapourizing furnace from lock hopper by coal dust in the mode of plug flow for the carrier gas of pulverized coal conveying in gas-carrier pipeline, and solid-gas ratio is higher, and carrier gas usage quantity is less, energy-saving and cost-reducing.3, the present invention due to coal dust in feed hopper with the mode blanking of gravity, then control feed by mechanical feeding device, accurate control and the metering of coal dust can be realized.Comparatively vapourizing furnace is low for the unloading position of 4, existing coal powder conveying system feed hopper, because feed hopper is in higher position compared with vapourizing furnace in the technical solution used in the present invention, therefore to vapourizing furnace automatic powder feeding system by existing low level to high-order powder feeding, change into high-order to low level powder feeding.Because feed hopper internal pressure is constant, the abundant fluidisation of coal dust, in conjunction with Mechanical course feed, can realize continuously and stably feeding, and can effectively reduce the load volume entered in vapourizing furnace.5, the present invention is due to the impact of " material level static pressure difference " when the material level of gas coning no longer feeds in raw material by lock hopper, and therefore fluidisation is more abundant, and feed is more stable.The present invention can extensively apply in coal chemical technology.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the invention provides a kind of pulverized coal conveying device, in this device, coal dust mainly adopts the mode by mechanical feed, and air conveying mode is auxiliary feeding vapourizing furnace.The present invention includes the burner 10 in coal pulverizer 1, coal fine filter 2, screw feeder 3, normal pressure storehouse 4, lock hopper 5, feed hopper 6, mechanical feeding device 7, gas coning 8, vapourizing furnace 9 and vapourizing furnace 9.Coal pulverizer 1 is provided with raw coal entrance 11, and coal pulverizer 1 exports by pipeline connection coal fine filter 2 entrance.Be positioned at below coal fine filter 2, coal fine filter 2 exports and is connected with screw feeder 3, normal pressure storehouse 4 and lock hopper 5 by the road from top to bottom in turn, and screw feeder 3 belongs to mechanical feeding device.Lock hopper 5 export pipeline is communicated with the gas-carrier pipeline 12 for inputting carrier gas transfer coal dust, connects feed hopper 6 import be positioned at above vapourizing furnace 9 burner 10 through gas-carrier pipeline 12.Feed hopper 6 outlet at bottom connects mechanical feeding device 7, and mechanical feeding device 7 is positioned at below feed hopper 6; Be positioned at below mechanical feeding device 7, mechanical feeding device 7 exports the burner 10 connected successively by the road in gas coning 8 and vapourizing furnace 9 from top to bottom, and coal dust sprays through burner 10 and enters vapourizing furnace 9.Wherein, the position of burner 10 is lower than the position of feed hopper 6, and normal pressure storehouse 4 horizontal installation position is higher than lock hopper 5, and feed hopper 6 horizontal installation position is higher than lock hopper 5, and lock hopper 5 is positioned at below vapourizing furnace 9 burner 10.
In above-described embodiment, mechanical feeding device 7 can adopt other mechanism such as rotary pocket feeder or screw feeder.When mechanical feeding device 7 adopts screw feeder, screw feeder one end is placed in feed hopper 6, the other end connects gas coning 8, coal dust in feed hopper 6 is sent into the gas coning 8 be positioned at below screw feeder by screw feeder continuously, and the coal dust amount entered in gas coning 8 accurately can be controlled the flow of coal dust by screw feeder.After entering the powder fluidized in gas coning 8, under the acting in conjunction of pressure difference and coal dust self gravitation, adopt a small amount of carrier gas to send in the burner 10 of vapourizing furnace 9, coal dust and vaporized chemical are sprayed by burner 10 and enter vapourizing furnace.
In the various embodiments described above, feed hopper 6 and mechanical feeding device 7 also can be arranged to integral structure with gas coning 8, its concrete structure is: it is inner that feed hopper 6 bottom is included in gas coning 8, and it is inner that mechanical feeding device 7 is all included in gas coning 8, and be positioned at gas coning 8 internal upper part; And mechanical feeding device 7 one end connects feed hopper 6, the other end is positioned at gas coning 8.During work, coal dust in feed hopper 6 falls in gas coning 8 by the type of transmission such as mechanical overturn or rotation by machinery feeding device 7, coal dust in gas coning 8 after abundant fluidisation under the acting in conjunction of pressure difference and gravity, adopt a small amount of carrier gas to send in gasifier nozzle, coal dust and vaporized chemical are sprayed by burner 10 and enter vapourizing furnace 9.
In the various embodiments described above, gas coning 8 adopts from high to low feeding style downwards to burner 10 feeding style in vapourizing furnace 9.Gas coning 8 adopts metal sintering mode to make sandwich structure, is full of fluidized wind in this interlayer, for the coal dust in abundant fluidisation gas coning 8.Gas coning 8 top is also connected with vapor pipe 13, and in gas coning 8, be provided with equilibration tube and coal dust liquid level detection device (not shown), and equilibration tube is used for feed hopper 6 equilibrium pressure and too much coal dust is back to feed hopper 6 through vapor pipe 13; Whether coal dust liquid level detection device exceeds predetermined material level scope for detecting breeze material position in gas coning 8, if during the breeze material position higher limit that the breeze material position in gas coning 8 presets higher than gas coning 8, reduce the pulverized coal flow of mechanical feeding device 7, be back to feed hopper 6 by after unnecessary powder fluidized from the vapor pipe 13 at gas coning 8 top; If when the breeze material position in gas coning 8 requires bottom level limit lower than the breeze material position that gas coning 8 presets, then increase the feeding coal of mechanical feeding device 7 coal dust, the breeze material position in gas coning 8 is remained on and subscribes within the scope of material level.
In the various embodiments described above, the pipeline on the pipeline between normal pressure storehouse 4 and lock hopper 5, on the pipeline of lock hopper 5 exit and between gas-carrier pipeline 12 and feed hopper 6 is provided with coal dust control valve 14.Between normal pressure storehouse 4 and lock hopper 5, be also connected with the pressure equilibrium pipeline (not shown) for equilibrium pressure, pressure equilibrium pipeline is provided with pressure-balanced valve.Lock hopper 5 is also provided with pressure relief pipe and pressurising pipeline.
In the various embodiments described above, be delivered in feed hopper 6 for the carrier gas of pulverized coal conveying in the mode of plug flow or Dense Phase Pneumatic Conveying in gas-carrier pipeline 12, this carrier gas can adopt N
2, CO
2or other rare gas elementes, be filled with the unnecessary gas of feed hopper 6 and released by the discharge outlet of feed hopper 6, keep feed hopper constant pressure (not shown).
In the various embodiments described above, taper flow gasifying device (not shown) is provided with bottom feed hopper 6, and feed hopper 6 outlet at bottom is conical outlet, this conical outlet can be one and also can arrange multiple as required, each conical outlet is correspondingly provided with a mechanical feeding device 7, falls in the mechanical feeding device 7 below feed hopper 6 after powder fluidized through gravity blanking.Be provided with pressure relief pipe, pressurising pipeline and pressure-balanced valve in feed hopper 6, the breeze material position in feed hopper 6 and pressure must maintain definite value and pressure higher than the pressure in vapourizing furnace 9.
In the various embodiments described above, burner 10 and vapourizing furnace 9 all adopt mature equipment of the prior art, are comparatively maturation process, just repeat no more at this.
In sum, the present invention operationally, raw coal enters through raw coal entrance 11 granularity requirements being milled in coal pulverizer 1 and presetting, afterwards coal dust by selection by winnowing, after drying through wind model to coal fine filter 2 inner filtration, the coal dust after filtration falls into the screw feeder 3 be positioned at below coal fine filter 2.Coal dust is sent into lock hopper 5 through normal pressure storehouse 4 by screw feeder 3, and the coal dust in lock hopper 5 is delivered to the feed hopper 6 in vapourizing furnace 9 above burner 10 by the delivery of carrier gas in gas-carrier pipeline 12.The present invention and existing coal powder conveying system mode of movement unlike, coal dust to be directly delivered in vapourizing furnace 9 in burner 10 by the feed hopper 6 below burner 10 in vapourizing furnace 9 by the present invention, but coal dust is first delivered to by the lock hopper 5 be positioned at below vapourizing furnace 9 burner 10 feed hopper 6 be positioned at above vapourizing furnace 9 burner 10, coal dust is transferred to (being the below that gas coning 8 is directly installed on feed hopper 6 in existing coal powder conveying system mode of movement) in gas coning 8 by the mechanical feeding device 7 again bottom feed hopper 6, finally by gas coning 8 by a small amount of carrier gas by after powder fluidized directly in the burner 10 being delivered in vapourizing furnace 9 from the top down.The stability of therefore coal dust carry from lock hopper 5 to feed hopper 6 this section of conveying flow process and uniformity requirement relatively low, the higher plug flow of conveying solid-gas ratio can be adopted to carry.Meanwhile, due to being indirectly separated of gas coning 8 and feed hopper 6, the surging force impact that gas coning 8 is no longer stressed on powder fluidized and lock hopper 5 is reinforced, conveying will be more stable, can also run under the operating mode higher than existing transfer pressure.
The mode of operation of normal pressure storehouse 4, lock hopper 5 and feed hopper 6 is: normal pressure storehouse 4 adds quantitative coal dust to lock hopper 5, when coal dust in lock hopper 5 reaches predetermined height, close the coal dust control valve 14 between normal pressure storehouse 4 and lock hopper 5, backward lock hopper 5 in pressurising, if when the pressure of lock hopper 5 is increased to predetermined pressure, open the coal dust control valve 14 on the pipeline of lock hopper 5 exit, adopt the mode of plug flow to be delivered in feed hopper 6 by the carrier gas in gas-carrier pipeline 12 coal dust in lock hopper 5.After the coal dust conveying in lock hopper 5, close lock hopper 5 exit and the coal dust control valve 14 between gas-carrier pipeline 12 and feed hopper 6, then lock hopper 5 is carried out pressure release to atmospheric pressure state, open the coal dust control valve 14 between normal pressure storehouse 4 and lock hopper 5 afterwards, coal dust is transmitted to lock hopper 5, so repeatedly by normal pressure storehouse 4.
In the present invention, unless otherwise explicitly bright or restriction, " top " or " below " of indication of the present invention, if vapourizing furnace is in " below " of feed hopper, feed hopper can be comprised directly over vapourizing furnace and oblique upper, or only represent that the level height of feed hopper is higher than vapourizing furnace.Similar, if gas coning is in " below " of feed hopper, gas coning immediately below feed hopper and tiltedly below can be comprised, or only represent that the level height of gas coning is lower than feed hopper.The present invention also includes detecting instrument (as velometer, densometer etc.), pressurising pressure relief pipe, valve etc., does not all draw in the accompanying drawings, but does not affect and understand the present invention.The various embodiments described above are only for illustration of the present invention; the connection of each parts and structure all can change to some extent; on the basis of technical solution of the present invention; all improvement of carrying out the connection of individual part and structure according to the principle of the invention and equivalents, all should not get rid of outside protection scope of the present invention.
Claims (10)
1. a pulverized coal conveying device, is characterized in that: it comprises the burner in coal pulverizer, coal fine filter, screw feeder, normal pressure storehouse, lock hopper, feed hopper, mechanical feeding device, gas coning, vapourizing furnace and vapourizing furnace; Described coal pulverizer is provided with raw coal entrance, and the outlet of described coal pulverizer connects described coal fine filter entrance by pipeline; Be positioned at below described coal fine filter, described coal fine filter outlet connects described screw feeder, normal pressure storehouse and lock hopper from top to bottom by the road successively; Described lock hopper export pipeline is communicated with the gas-carrier pipeline for inputting carrier gas transfer coal dust, connects the described feed hopper import be positioned at above described vapourizing furnace burner through described gas-carrier pipeline; Described feed hopper outlet at bottom connects described mechanical feeding device, and described mechanical feeding device is positioned at below described feed hopper; Be positioned at below described mechanical feeding device, described mechanical feeding device outlet connects the burner of described gas coning and vapourizing furnace by the road from top to bottom successively, and coal dust sprays through described burner and enters described vapourizing furnace; The burner position of described vapourizing furnace is lower than the position of described feed hopper, and described normal pressure storehouse horizontal installation position is higher than described lock hopper, and described feed hopper horizontal installation position is higher than described lock hopper, and described lock hopper is positioned at below described vapourizing furnace burner.
2. a kind of pulverized coal conveying device as claimed in claim 1, is characterized in that: described mechanical feeding device adopts rotary pocket feeder or screw feeder; During described mechanical feeding device employing screw feeder, described screw feeder one end is placed in described feed hopper, and the other end connects described gas coning.
3. a kind of pulverized coal conveying device as claimed in claim 1, it is characterized in that: described feed hopper and mechanical feeding device and described gas coning are arranged to integral structure, it is inner that described feed hopper bottom is included in described gas coning, it is inner that described mechanical feeding device is all included in described gas coning, and be positioned at described gas coning internal upper part; And described mechanical feeding device one end connects described feed hopper, the other end is positioned at described gas coning.
4. a kind of pulverized coal conveying device as claimed in claim 2, it is characterized in that: described feed hopper and mechanical feeding device and described gas coning are arranged to integral structure, it is inner that described feed hopper bottom is included in described gas coning, it is inner that described mechanical feeding device is all included in described gas coning, and be positioned at described gas coning internal upper part; And described mechanical feeding device one end connects described feed hopper, the other end is positioned at described gas coning.
5. a kind of pulverized coal conveying device as claimed in claim 1 or 2 or 3 or 4, it is characterized in that: described gas coning adopts metal sintering mode to make sandwich structure, described gas coning top is also connected with vapor pipe, and is provided with in described gas coning for too much coal dust is back to the equilibration tube of described feed hopper through described vapor pipe with described feed hopper equilibrium pressure and is used for detecting breeze material position in described gas coning and whether exceeds the coal dust liquid level detection device of predetermined material level scope.
6. a kind of pulverized coal conveying device as claimed in claim 1 or 2 or 3 or 4, is characterized in that: the pipeline on the pipeline between described normal pressure storehouse and described lock hopper, on the pipeline of described lock hopper exit and between described gas-carrier pipeline and described feed hopper is provided with coal dust control valve; Between described normal pressure storehouse and described lock hopper, be also connected with pressure equilibrium pipeline, described pressure equilibrium pipeline is provided with pressure-balanced valve; Described lock hopper is also provided with pressure relief pipe and pressurising pipeline.
7. a kind of pulverized coal conveying device as claimed in claim 5, is characterized in that: the pipeline on the pipeline between described normal pressure storehouse and described lock hopper, on the pipeline of described lock hopper exit and between described gas-carrier pipeline and described feed hopper is provided with coal dust control valve; Between described normal pressure storehouse and described lock hopper, be also connected with pressure equilibrium pipeline, described pressure equilibrium pipeline is provided with pressure-balanced valve; Described lock hopper is also provided with pressure relief pipe and pressurising pipeline.
8. a kind of pulverized coal conveying device as described in claim 1 or 2 or 3 or 4 or 7, is characterized in that: be delivered in described feed hopper for the carrier gas of pulverized coal conveying in the mode of plug flow or Dense Phase Pneumatic Conveying in described gas-carrier pipeline; Be provided with taper flow gasifying device bottom described feed hopper, and described feed hopper outlet at bottom is conical outlet, this conical outlet is more than one, and conical outlet described in each is correspondingly provided with a described mechanical feeding device; Also be provided with pressure relief pipe, pressurising pipeline and pressure-balanced valve in described feed hopper, the breeze material position in described feed hopper and pressure must maintain definite value and pressure higher than the pressure in described vapourizing furnace.
9. a kind of pulverized coal conveying device as claimed in claim 5, is characterized in that: be delivered in described feed hopper for the carrier gas of pulverized coal conveying in the mode of plug flow or Dense Phase Pneumatic Conveying in described gas-carrier pipeline; Be provided with taper flow gasifying device bottom described feed hopper, and described feed hopper outlet at bottom is conical outlet, this conical outlet is more than one, and conical outlet described in each is correspondingly provided with a described mechanical feeding device; Also be provided with pressure relief pipe, pressurising pipeline and pressure-balanced valve in described feed hopper, the breeze material position in described feed hopper and pressure must maintain definite value and pressure higher than the pressure in described vapourizing furnace.
10. as Claims 1 to 4,7, a kind of pulverized coal conveying device as described in 9 any one, it is characterized in that: described gas coning adopts from high to low feeding style downwards to gasifier nozzle feeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410030708.1A CN103789044B (en) | 2014-01-22 | 2014-01-22 | Coal powder conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410030708.1A CN103789044B (en) | 2014-01-22 | 2014-01-22 | Coal powder conveying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103789044A CN103789044A (en) | 2014-05-14 |
| CN103789044B true CN103789044B (en) | 2015-07-15 |
Family
ID=50665108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410030708.1A Active CN103789044B (en) | 2014-01-22 | 2014-01-22 | Coal powder conveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103789044B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3059572A1 (en) * | 2016-12-06 | 2018-06-08 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | POWDER FEEDING SYSTEM FROM PELLETS, METHOD AND INSTALLATION FOR CARBON-LOAD GASIFICATION IN A COIL-FLOW REACTOR (RFE) USING SUCH A SYSTEM |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104560207B (en) * | 2014-12-09 | 2017-01-18 | 煤炭科学技术研究院有限公司 | Gasification device of coal derived industrial gas |
| CN114772215B (en) * | 2022-05-11 | 2024-01-12 | 马鞍山钢铁股份有限公司 | Pneumatic sand adding system and sand adding method for electric furnace |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0190094A1 (en) * | 1985-01-30 | 1986-08-06 | Mitsubishi Jukogyo Kabushiki Kaisha | Coal gasification composite power generator |
| CN2808837Y (en) * | 2005-07-11 | 2006-08-23 | 西安热工研究院有限公司 | Dry pulverized coal pressurized dense-phase conveying device having multiple discharging port |
| CN101927902A (en) * | 2010-08-13 | 2010-12-29 | 神华集团有限责任公司 | Device and method for fluidizing and conveying powder in conic section of powder storage bin |
| CN201890631U (en) * | 2010-08-13 | 2011-07-06 | 神华集团有限责任公司 | Device for fluidizing and conveying powder at tapered segment of powder warehouse |
| CN102180357A (en) * | 2011-05-04 | 2011-09-14 | 福建龙净环保股份有限公司 | Pneumatic conveying system and method for powder material with low air retention ability |
| CN102465041A (en) * | 2010-11-02 | 2012-05-23 | 通用电气公司 | Solid powder material treatment system and method thereof |
| CN102604680A (en) * | 2012-03-21 | 2012-07-25 | 清华大学 | Pulverized coal feeder |
| CN103113924A (en) * | 2013-01-23 | 2013-05-22 | 中国五环工程有限公司 | Process and system for synthesizing gas to convey gasified powdered coal |
| CN103144965A (en) * | 2013-03-12 | 2013-06-12 | 上海题桥能源科技发展有限公司 | Powdered coal pneumatic conveying system and powdered coal pneumatic conveying method |
| CN203700296U (en) * | 2014-01-22 | 2014-07-09 | 煤炭科学研究总院 | Pulverized coal conveyer |
-
2014
- 2014-01-22 CN CN201410030708.1A patent/CN103789044B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0190094A1 (en) * | 1985-01-30 | 1986-08-06 | Mitsubishi Jukogyo Kabushiki Kaisha | Coal gasification composite power generator |
| CN2808837Y (en) * | 2005-07-11 | 2006-08-23 | 西安热工研究院有限公司 | Dry pulverized coal pressurized dense-phase conveying device having multiple discharging port |
| CN101927902A (en) * | 2010-08-13 | 2010-12-29 | 神华集团有限责任公司 | Device and method for fluidizing and conveying powder in conic section of powder storage bin |
| CN201890631U (en) * | 2010-08-13 | 2011-07-06 | 神华集团有限责任公司 | Device for fluidizing and conveying powder at tapered segment of powder warehouse |
| CN102465041A (en) * | 2010-11-02 | 2012-05-23 | 通用电气公司 | Solid powder material treatment system and method thereof |
| CN102180357A (en) * | 2011-05-04 | 2011-09-14 | 福建龙净环保股份有限公司 | Pneumatic conveying system and method for powder material with low air retention ability |
| CN102604680A (en) * | 2012-03-21 | 2012-07-25 | 清华大学 | Pulverized coal feeder |
| CN103113924A (en) * | 2013-01-23 | 2013-05-22 | 中国五环工程有限公司 | Process and system for synthesizing gas to convey gasified powdered coal |
| CN103144965A (en) * | 2013-03-12 | 2013-06-12 | 上海题桥能源科技发展有限公司 | Powdered coal pneumatic conveying system and powdered coal pneumatic conveying method |
| CN203700296U (en) * | 2014-01-22 | 2014-07-09 | 煤炭科学研究总院 | Pulverized coal conveyer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3059572A1 (en) * | 2016-12-06 | 2018-06-08 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | POWDER FEEDING SYSTEM FROM PELLETS, METHOD AND INSTALLATION FOR CARBON-LOAD GASIFICATION IN A COIL-FLOW REACTOR (RFE) USING SUCH A SYSTEM |
| EP3333244A1 (en) * | 2016-12-06 | 2018-06-13 | Commissariat à l'Energie Atomique et aux Energies Alternatives | System for supplying powder from granules, method and facility for the gasification of a feedstock of carbon material in a fluidized bed reactor (fbr) using such a system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103789044A (en) | 2014-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103113925B (en) | Powdered coal pressure dense-phase conveying device and method of dry coal dust pressure gasification | |
| CN100450901C (en) | Dry coal pressure closed phase conveyer with several discharge branches | |
| CN103146435B (en) | High-moisture coal pulverizing, drying and conveying apparatus and method thereof | |
| CN103789044B (en) | Coal powder conveying device | |
| CN2808837Y (en) | Dry pulverized coal pressurized dense-phase conveying device having multiple discharging port | |
| CN106185368B (en) | A kind of coal dust feeding device | |
| CN104773509A (en) | System and method for conveying fluidized parallel storehouse pumps | |
| CN209128384U (en) | A kind of preparation system being interrupted grain size distribution high-concentration coal-water slurry | |
| CN203229496U (en) | Milled coal drying and conveying device applicable to high-moisture-content coal | |
| CN205151192U (en) | High densification looks pneumatic conveyor of forced lubrication formula | |
| CN105347040A (en) | Pressure feed type high-pressure dense-phase pneumatic conveying device and pneumatic conveying method | |
| CN201688428U (en) | Boiler pulverized coal conveyer system | |
| CN105253631A (en) | Powder pressurized conveying device | |
| CN206881826U (en) | Improve the medium-speed pulverizer unit pulverized-coal system contributed with quality of pc | |
| CN201000078Y (en) | Gas/solid liquid equipartition device | |
| CN203700296U (en) | Pulverized coal conveyer | |
| CN103216825B (en) | Use the High-density Circulating Fluidized Beds circular arc U valve material returning device of category-B particle | |
| CN201411183Y (en) | Injection tank fluidized device | |
| CN200940041Y (en) | Powder pressing and concentrated phase conveyer with multiple discharging | |
| CN108795503A (en) | Pressurization of dry pulverized coal dense-phase transporting system and method | |
| CN203144352U (en) | Pulverized coal pressurizing dense phase conveying device for pressurizing and gasifying pulverized coal | |
| CN201395579Y (en) | Material feeding tank capable of synchronously providing coal to a plurality of gasification furnaces | |
| CN107285040B (en) | A kind of regulation method of powder quality flow | |
| CN201161834Y (en) | Concentrated phase multipath fluidization blowing tank | |
| CN204549457U (en) | Fluidization storehouse in parallel transport pump system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA COAL RESEARCH INSTITUTE CO., LTD. Free format text: FORMER OWNER: COAL GENERAL ACADEMY Effective date: 20140623 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20140623 Address after: 100013 Chaoyang District, Hepingli Youth Ditch Road, No. 5, No. Applicant after: CCTEG CHINA COAL Research Institute Address before: 100013 Chaoyang District, Hepingli Youth Ditch Road, No. 5, No. Applicant before: CHINA COAL Research Institute |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170209 Address after: Beijing Caiyu Economic Development Zone 102606 Beijing city Daxing District Long Yu Caiyu Town Street No. 5 Patentee after: CHINA COAL RESEARCH INSTITUTE (CCRI) ENERGY SAVING TECHNOLOGY CO.,LTD. Address before: 100013 Chaoyang District, Hepingli Youth Ditch Road, No. 5, No. Patentee before: CCTEG CHINA COAL Research Institute |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102606 No.5, Yulong Street, Caiyu Economic Development Zone, Caiyu Town, Daxing District, Beijing Patentee after: Beijing Tiandi Sunac Technology Co.,Ltd. Address before: 102606 No.5, Yulong Street, Caiyu Economic Development Zone, Caiyu Town, Daxing District, Beijing Patentee before: CHINA COAL RESEARCH INSTITUTE (CCRI) ENERGY SAVING TECHNOLOGY CO.,LTD. |