CN207002652U - A kind of online sanding device of high circulation multiplying power fluidized-bed gasification furnace - Google Patents
A kind of online sanding device of high circulation multiplying power fluidized-bed gasification furnace Download PDFInfo
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- CN207002652U CN207002652U CN201720940737.0U CN201720940737U CN207002652U CN 207002652 U CN207002652 U CN 207002652U CN 201720940737 U CN201720940737 U CN 201720940737U CN 207002652 U CN207002652 U CN 207002652U
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- gasification furnace
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- bed gasification
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Abstract
A kind of online sanding device of high circulation multiplying power fluidized-bed gasification furnace, belongs to coal chemical technology, it is characterised in that：Including the sack cleaner, sand tank plus silo and transmitter being sequentially communicated；The top of sand tank sets sack cleaner, and bottom is provided with loosening device；Cloth bag blowback device and loosening device are connected with low-pressure gas source；Add the top of silo that Quick-pressing device is set, bottom is provided with Fluidizer；Quick-pressing device and Fluidizer are connected with high-pressure air source；Balancer is set between the top of sand tank and the top for adding silo.Sand in gas pair plus silo is adjusted by Fluidizer to purge, and can effectively prevent that sand from building bridge or wall built-up causes blanking not smooth；Conveying gas is adjusted by controllable pressure transmitter, realizes and adds sand controllable-rate；Apparatus system operation flexibility ratio is high, and sand particle size range is wide, has remarkable result in terms of high circulation multiplying power fluidized-bed gasification furnace startup procedure stabilization is ensured, reduce driving cost.
Description
Technical field
The utility model belongs to coal chemical technology, more particularly to a kind of high circulation multiplying power fluidized-bed gasification furnace adds sand to fill online
Put.
Background technology
China possesses abundant coal resources, in China's energy-consuming and production, coal as the leading energy, accounting compared with
It is high.Exemplified by 2015, annual 39.6 hundred million tons of consumption of coal, the 50.6% of world's consumption of coal total amount is accounted for, China's energy is accounted for and disappears
Take the 64% of total amount.The explored lignite reserves in China accounts for the 13% of national coal reserves up to 129,100,000,000 tons.But due to lignite
Moisture is high, calorific value is relatively low and heat endurance is poor, unsuitable long-distance transportation, has again directly as extensive gasified raw material
Significant limitations, some areas power fuel is only used as at present, rate of exploitation is relatively low, only accounts for the 4-5% of national coal production at present.
But with the rapid development of Chinese national economy, the high-quality coal of high heating value is largely utilized, thus lignite deep processing for
Ensure that national energy supply has very important significance.
Brown coal hydrogasification technology is the guiding of the high-new cleaning coal utilization technology such as coal chemical industry synthesis, coal liquefaction, IGCC technologies
Technology.But at present both at home and abroad lignite by the use of Main Means be still direct fuel as power station, Industrial Boiler, added value is not
It is high；Separately there is small part lignite to be changed into bituminous coal, moulded coal or semicoke by upgrading, but also need to crush, could gasify after slurrying, it is overall
On the unfavorable factors such as process route is long, investment is big be present.In a word, due to lignite is converted into conjunction there presently does not exist one kind
Into the maturation process of gas, cleaning, the high value added utilization of lignite significantly limit.
High circulation multiplying power fluidized-bed gasification furnace can effectively solve the problem that the technical bottleneck of brown coal hydrogasification, make efficiency of carbon con version up to 99%
More than, it can really realize that the high-efficiency cleaning of lignite utilizes.But high circulation multiplying power fluidized gasification furnace apparatus drive initial stage, first
Need nitrogen to establish the ciculation fluidized state of sand in gasification furnace, then pass through the high temperature cigarette caused by heating furnace burning diesel oil that goes into operation
Gasification furnace is gradually warming up to about 650 DEG C by gas, is then being gasified by diesel oil spray gun toward diesel oil is sprayed into gasification furnace by diesel oil
Burning in stove is continuously heating to about 950 DEG C, then starts gradually to be transferred to normal operation toward gasification furnace input coal dust, gasification furnace.
Due to being refractory lining material in circle fluidized-bed gasification furnace, refractory liner heating rate is usually required that no more than 50 DEG C/h.Cause
This circle fluidized-bed gasification furnace is driven, and the time is very long, and sand is operated in gasification furnace with very high circulating ratio, constantly mill
Damage, makes sand particle diameter constantly attenuate, and causes sand in gasification furnace to reduce, causes gasification furnace poor fluidization, can not finally meet to throw
Coal condition, add sand after need to stopping again, add driving cost.
The content of the invention
The purpose of this utility model is solve the sand loss that high circulation multiplying power fluidized-bed gasification furnace startup procedure occurs
The defects of causing to fluidize disorder, there is provided a kind of to realize that high circulation multiplying power fluidized-bed gasification furnace adds the device of sand online.
The online sanding device of high circulation multiplying power fluidized-bed gasification furnace described in the utility model, including the cloth bag being sequentially communicated
Deduster, sand tank plus silo and transmitter；The port of export of the transmitter through pipeline respectively with high circulation multiplying power fluid bed gas
Change stove with high-pressure air source to be connected；The top of the sand tank sets sack cleaner, and bottom is provided with loosening device；The cloth bag
Blowback device and loosening device are connected with low-pressure gas source；Described plus silo top sets Quick-pressing device, and bottom is provided with stream
Change device；The Quick-pressing device and Fluidizer are connected with high-pressure air source；At the top of the sand tank and the top for adding silo
Balancer is provided between portion.Pair friendship voltage control for adding silo can be realized by Quick-pressing device and balancer, make to add silo
The online plus sand being applicable under high circulation multiplying power fluidized-bed gasification furnace different pressures.
The online sanding device of high circulation multiplying power fluidized-bed gasification furnace described in the utility model, the sand tank is with adding silo
Between be provided with sand tank stop valve；It is described plus wear-resisting moushroom valve is provided between silo and transmitter, can control sediment transport speed and
The gas velocity of sediment transport pipeline.
The online sanding device of high circulation multiplying power fluidized-bed gasification furnace described in the utility model, the transmitter is can pressure control
Transmitter, you can carry out adding sand online under the operating mode of gasification furnace different operating pressure, the control pair add sand speed can be realized again.
The online sanding device of high circulation multiplying power fluidized-bed gasification furnace described in the utility model, the low-pressure gas source and high pressure
Source of the gas includes nitrogen or carbon dioxide or nitrogen and carbon dioxide mix gas.
The online sanding device of high circulation multiplying power fluidized-bed gasification furnace described in the utility model, the loosening device are provided with 1-
5；When setting quantity to be more than 1, the loosening device is in be arranged in parallel.
The online sanding device of high circulation multiplying power fluidized-bed gasification furnace described in the utility model, the Quick-pressing device are set
There are 2-4, the Quick-pressing device is in be arranged in parallel.
The online sanding device of high circulation multiplying power fluidized-bed gasification furnace described in the utility model, the Fluidizer are provided with 2-
10, the Fluidizer is in be arranged in parallel.
The sand grain of quartz sand added by the online sanding device of high circulation multiplying power fluidized-bed gasification furnace described in the utility model
Footpath scope is 20-220 microns or 220-850 microns, and described plus silo operating pressure scope is normal pressure -4MPa.
The online sanding device of high circulation multiplying power fluidized-bed gasification furnace described in the utility model, gas is adjusted by Fluidizer
Pair plus silo in sand carry out purging continuously or discontinuously, can effectively prevent that sand from building bridge or wall built-up causes blanking not smooth；Pass through
Quick-pressing device and balancer can realize plus the alternation press operation of silo, meets that high circulation multiplying power fluidized-bed gasification furnace adds sand online
Requirement；Conveying gas is adjusted by controllable pressure transmitter, realizes and adds sand controllable-rate；Apparatus system operation is flexible
Degree is high, and sand particle size range is wide, in terms of high circulation multiplying power fluidized-bed gasification furnace startup procedure stabilization is ensured, reduce driving cost
There is remarkable result.
Brief description of the drawings
Fig. 1 is device overall structure diagram of the present utility model
Wherein, 1- sand tanks, 2- add silo, 3- gasification furnaces, 4- cloth bags blowback device, 5- loosening devices, 6- Quick-pressings device, 7-
Fluidizer, 8- transmitters, the wear-resisting moushroom valves of 9-, 10- sand tanks stop valve, 11- balancers, 12- sack cleaners, 13- stop valves,
14- low-pressure gas sources, 15- high-pressure air sources.
Embodiment
Below in conjunction with the accompanying drawings and embodiment adds sand dress to high circulation multiplying power fluidized-bed gasification furnace 3 described in the utility model online
Put and be described in detail.
Such as Fig. 1,3 online sanding device of high circulation multiplying power fluidized-bed gasification furnace described in the utility model includes what is be sequentially communicated
Sack cleaner 12, sand tank 1 plus silo 2 and transmitter 8；The port of export of the transmitter 8 through pipeline respectively with high circulation times
Rate fluidized-bed gasification furnace 3 is connected with high-pressure air source 15；The top of the sand tank 1 sets sack cleaner 12, and bottom is set
There is loosening device 5；The cloth bag blowback device 4 and loosening device 5 are connected with low-pressure gas source 14；Described plus silo 2 top is set
Quick-pressing device 6, bottom are provided with Fluidizer 7；The Quick-pressing device 6 and Fluidizer 7 are connected with high-pressure air source 15；
The top of the sand tank 1 and add silo 2 top between be provided with balancer 11, for adjust sand tank 1 with plus silo 2 it
Between pressure difference, it is ensured that quartz sand stable output in sand tank 1.The quartz sand outlet of transmitter 8 is through the pipe provided with stop valve 13
Line is connected with the quartz sand entrance of high rate cyclic fluidized gasification stove 3.It is described plus be provided between silo 2 and transmitter 8 it is wear-resisting
Moushroom valve 9, it can control sediment transport speed and the gas velocity of sediment transport pipeline.The outlet line of low-pressure gas source 14 is divided into two-way, is respectively:First
Road is connected by cloth bag blowback device 4 with the upper end blowback air entrance of sack cleaner 12, and the purpose is to in sack cleaner 12
Cloth bag filter core carries out indirect gas flow purging, prevents fine sand in cloth bag filter core wall built-up, blocks；Second tunnel passes through loosening device 5 and storage sand
The lower end fluidized gas entrance of tank 1 is connected, and the purpose is to carry out indirect or continuous flow to quartz sand in sand tank 1 to purge, prevents
Quartz sand bridge formation, wall built-up in sand tank 1.The outlet line of high-pressure air source 15 is divided into three tunnels, is respectively：The first via is by quickly adding
The pressurization inlet of upper end of the depressor 6 with adding silo 2 is connected, and the purpose is to pair to add the Quick-pressing of silo 2, improves the pressure for adding silo 2
Power；By Fluidizer 7 with adding the lower end fluidized gas entrance of silo 2 to be connected, the purpose is to pair to add quartz sand in silo 2 to enter on the second tunnel
In the ranks connect or continuous flow purges, prevent from adding quartz sand bridge formation, wall built-up in silo 2；3rd tunnel is connected with the entrance of transmitter 8, its
Mesh is the continuous effect for providing delivery air.Quartz sand is thoroughly mixed in transmitter 8 with pressurized delivered gas, and is sent through pressure control
The entrainment of device 8 is delivered to high rate cyclic fluidized-bed gasification furnace 3.
The quantity of loosening device 5 described in the utility model is arranged to 4 and is arranged in parallel, and uniformly cloth comes the tank of sand tank 1
Body bottom；The quantity of Quick-pressing device 6 is arranged to 4 and is arranged in parallel and uniformly cloth comes plus the tank body top of silo 2；Fluidized gas
Quantity is arranged to 5 and is arranged in parallel, and uniform cloth comes plus the tank body lower part of silo 2, to ensure the unobstructed and quartz sand of device
Dynamic stability；According to specifically used environment, can according to different chemical industry purposes, convey source of the gas include nitrogen or carbon dioxide or
The gaseous mixture of nitrogen and carbon dioxide.By adjusting the component of conveying gas, the economic performance of conveying gas can be realized.Conveying gas leads to
Cross transmitter 8 to mix with quartz sand, the effect of continuous-stable conveying quartz sand can be reached.
During device normal operation, quartz sand enters through sand tank 1 plus silo 2, adds the quartz sand amount in silo 2 according to transmission
The switch of tank bearing capacity information control sand tank stop valve 10, complete quartz sand discontinuity in 1 pair of sand tank plus silo 2 and add；
The moment of balancer 11 detects sand tank 1 and adds the pressure difference between silo 2, is added with ensureing that the quartz sand in sand tank 1 smoothly enters
Silo 2；Add the operating pressure of silo 2 higher 0.3MPa-0.8Mpa than the operating pressure of high rate cyclic fluidized-bed gasification furnace 3, with true
Protect and add the quartz sand in silo 2 to pass through 8 unobstructed output of transmitter；High-pressure air source 15 is adding the tank body of silo 2 by Fluidizer all the way
Bottom mixes with quartz sand, fluidizes and boosting quartz sand, make it is continuous, even into transmitter 8；Meanwhile high-pressure air source all the way
15 are sufficiently mixed after the regulation of transmitter 8 with the quartz sand in transmitter 8, and quartz sand is delivered into high magnification by strength and followed
Ring fluidized-bed gasification furnace 3.When add in silo 2 quartz sand to occur to build bridge, wall built-up when, add in silo 2 quartz sand blanking slowly or nothing
Blanking, the high-pressure air source 15 that Fluidizer 7 is adjusted according to system feedback in pipeline enters plus the entrance of 2 Fluidizer of silo 7, and by fast
Fast 6 pairs of pressurizer adds the rapid pressurization blowback of quartz sand progress in silo 2 to sweep.Upset the order of bridge formation, while make caking wall built-up
Quartz sand free dropping under the pressure of purge gass, it is in loose condition (of surface) again to make quartz sand.According to actual use situation, can set
Quartz sand is purged in real time in the timing pair of Fluidizer 7 plus silo 2, to avoid adding the generation of quartz sand abnormal conditions in silo 2.
Claims (7)
- A kind of 1. online sanding device of high circulation multiplying power fluidized-bed gasification furnace, it is characterised in that：Cloth bag including being sequentially communicated removes Dirt device（12）, sand tank（1）Plus silo（2）And transmitter（8）；The transmitter（8）The port of export through pipeline respectively with Gao Xun Ring multiplying power fluidized-bed gasification furnace（3）And high-pressure air source（15）It is connected；The sand tank（1）Top set sack cleaner （12）, bottom is provided with loosening device（5）；The cloth bag blowback device（4）And loosening device（5）And low-pressure gas source（14）It is connected； Described plus silo（2）Top set Quick-pressing device（6）, bottom is provided with Fluidizer（7）；The Quick-pressing device（6）With Fluidizer（7）And high-pressure air source（15）It is connected；In the sand tank（1）Top with plus silo（2）Top between set It is equipped with balancer（11）.
- 2. the online sanding device of high circulation multiplying power fluidized-bed gasification furnace according to claim 1, it is characterised in that：The storage Silo（1）With adding silo（2）Between be provided with sand tank stop valve（10）；Described plus silo（2）With transmitter（8）Between set There is wear-resisting moushroom valve（9）.
- 3. the online sanding device of high circulation multiplying power fluidized-bed gasification furnace according to claim 2, it is characterised in that：The hair Send device（8）For controllable pressure transmitter（8）.
- 4. the online sanding device of high circulation multiplying power fluidized-bed gasification furnace according to claim 3, it is characterised in that：It is described low Pressurized air source（14）And high-pressure air source（15）Including nitrogen or carbon dioxide or nitrogen and carbon dioxide mix gas.
- 5. the online sanding device of high circulation multiplying power fluidized-bed gasification furnace according to claim 4, it is characterised in that：The pine Dynamic device（5）It is provided with 1-5；When setting quantity to be more than 1, the loosening device（5）In being arranged in parallel.
- 6. the online sanding device of high circulation multiplying power fluidized-bed gasification furnace according to claim 5, it is characterised in that：It is described fast Fast pressurizer（6）2-4 are provided with, the Quick-pressing device（6）In being arranged in parallel.
- 7. the online sanding device of high circulation multiplying power fluidized-bed gasification furnace according to claim 6, it is characterised in that：The stream Change device（7）2-10 are provided with, the Fluidizer（7）In being arranged in parallel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720940737.0U CN207002652U (en) | 2017-07-31 | 2017-07-31 | A kind of online sanding device of high circulation multiplying power fluidized-bed gasification furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720940737.0U CN207002652U (en) | 2017-07-31 | 2017-07-31 | A kind of online sanding device of high circulation multiplying power fluidized-bed gasification furnace |
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| CN207002652U true CN207002652U (en) | 2018-02-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189823A (en) * | 2017-07-31 | 2017-09-22 | 陕西延长石油（集团）有限责任公司 | A kind of online sanding device of high circulation multiplying power fluidized-bed gasification furnace and sand adding method |
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2017
- 2017-07-31 CN CN201720940737.0U patent/CN207002652U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189823A (en) * | 2017-07-31 | 2017-09-22 | 陕西延长石油（集团）有限责任公司 | A kind of online sanding device of high circulation multiplying power fluidized-bed gasification furnace and sand adding method |
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