CN108394726A

CN108394726A - With the self-produced purified gas of deduster fluidize the method and system of defeated ash

Info

Publication number: CN108394726A
Application number: CN201810391234.1A
Authority: CN
Inventors: 陈琛; 蒋彪; 张卫东; 訚浩; 董艳苹
Original assignee: Zhongye Jingcheng Engineering Technology Co Ltd
Current assignee: MCC Capital Engineering and Research Incorporation Ltd; Zhongye Jingcheng Engineering Technology Co Ltd
Priority date: 2018-04-27
Filing date: 2018-04-27
Publication date: 2018-08-14

Abstract

A kind of method and system with the self-produced purified gas of deduster fluidize defeated ash of the present invention, including：Multiple dedusters, the half purified gas manifold between each deduster and purified gas manifold, deduster air inlet is connected with half purified gas manifold, deduster gas outlet is connected with purified gas manifold, deduster upper end is connected with defeated ash gas supply tube inlet, deduster lower end is equipped with the ash bucket for wearing ash discharge conduit, and ash discharge conduit outlet is connected with defeated grey air supply pipe；Fluidizer below ash discharge conduit is fixedly arranged on ash bucket lower end, and Fluidizer lower inlet is connected by fluidizing air supply pipe with purified gas manifold, and Fluidizer upper end outlet can be connected to ash bucket；Nitrogen big gun, including nitrogen gas tank and multiple injection pipes, multiple injection pipes are arranged in Fluidizer, and injection tube inlet is connected with nitrogen gas tank, and injection pipe outlet is pierced by Fluidizer and sets torrent injector.The present invention is exported the ash content concentrated phase after fluidisation to ash cellar by ash fluidization, and by purified gas with through the purified purified gas of deduster, and conveying is reliable, at low cost.

Description

With the self-produced purified gas of deduster fluidize the method and system of defeated ash

Technical field

The present invention relates to the defeated grey field of engineering technology of blast furnace, specifically a kind of defeated grey method and system of blast furnace ash fluidisation, more Specifically a kind of method and system for the self-produced purified gas of deduster fluidize defeated ash.

Background technology

In current blast furnace engineering construction project, blast furnace gas bag-type dust removing system is the dedusting for being listed in blast furnace system System is used to handle half purified gas of blast furnace of furnace roof extraction, to reach the dustiness requirement of subsequent technique needs, the stove of blast furnace It is an auxiliary system of the feeding batch can subsystem of blast furnace system that liftout tank, which presses gas recovery system, is used to filter batch can In coal gas, that is, collect pressure coal gas when feeding to batch can, be then dusted recycling.Currently, blast furnace gas cloth bag dedusting It includes mainly mechanical ash conveying and Pneumatic ash conveying that system and furnace roof batch can, which press the defeated grey mode of gas recovery system,.Mechanical ash conveying is In a manner of defeated ash by scrapper conveyor, bucket elevator etc. for core.Pneumatic ash conveying can be divided into dilute phase pneumatic according to the ratio of carrier gas and ash content Defeated ash and concentrated phase Pneumatic ash conveying.

Mechanical ash conveying device in the prior art is as shown in Figure 1, the ash content of each deduster 100 is fallen into through intermediate ash bucket 101 102 surface of scrapper conveyor, scrapper conveyor 102 are delivered to 103 bottom of bucket elevator, and bucket elevator 103 is promoted to eminence again, makes ash content free skating It falls into big ash cellar 104, due to the power and length limitation of scrapper conveyor 102 and bucket elevator 103, is only applicable to short distance, small The defeated ash of scale, and it belongs to open defeated grey structure, and scrapper conveyor 102 is difficult to make sealing, is likely to result in staff Anthracemia builds height height, and civil engineering costs is big, complicated in mechanical structure, and maintenance cost is high.

Compared to mechanical ash conveying, Pneumatic ash conveying belongs to closed defeated ash, meets clear production, safe transport requirement, structure Simply, reliability is high, easy to maintain, has been increasingly becoming the main way of defeated ash.Wherein, the feature of the defeated ash of dilute phase pneumatic is object Material is evenly distributed in the air-flow of pipeline, and concentration is low, and speed is fast, is the schematic diagram of the defeated ash of dilute phase pneumatic, energy as shown in Figure 2 The drawbacks of avoiding mechanical ash conveying, but it needs a large amount of carrier gas, operating cost is higher, and its flow velocity is fast, is rushed to inner wall of the pipe Brush wear is big, needs to configure ceramic tube or wear-resistant pipe, and construction investment is costly.

The characteristics of concentrated phase Pneumatic ash conveying is that material is full of one section of pipeline, forms hitching post shape, flowing velocity is low, to pipe wear Small, the pressure difference by tying down both sides is conveyed, and as shown in Figure 3 is the principle schematic of concentrated phase Pneumatic ash conveying, which obviate The drawback of mechanical ash conveying and the defeated ash of dilute phase pneumatic.Fig. 4 shows cone pump concentrated phase pneumatic ash conveying plant in the prior art, respectively removes Ash content in dirt device 200 falls into corresponding cone pump 202 through unloading valve, and the opening of nitrogen gate valve 201 is put into nitrogen, and ash content is in nitrogen Impulse force under enter ash pipeline 203, and input in big ash cellar 204.But because adsorbing coal gas in blast furnace ash, compression cannot be used empty Gas is as carrier gas, and cone pump concentrated phase pneumatic ash conveying plant employs nitrogen as carrier gas, costly, and nitrogen temperature is low, defeated It can cool down to blast furnace ash during sending, cause the mechanical water in blast furnace ash to analyze, ash content is caused to block, although it is compared to machine The construction height of the defeated ash of tool and the defeated ash of dilute phase pneumatic is low, but integrated steel-structure is still very high, and civil engineering costs is big.

Invention content

The purpose of the present invention is to provide a kind of system for carrying out fluidizing defeated ash with the self-produced purified gas of deduster, can utilize Through the purified purified gas of deduster by ash fluidization, and the ash content concentrated phase after fluidisation is exported to ash cellar by purified gas, it is defeated It send reliably, it is at low cost.

It is a further object of the present invention to provide a kind of methods for carrying out fluidizing defeated ash with the self-produced purified gas of deduster, can profit The ash content concentrated phase after fluidisation is exported to ash cellar by ash fluidization, and by purified gas with through the purified purified gas of deduster, Conveying is reliable, at low cost.

Following technical proposal can be used to realize in the above-mentioned purpose of the present invention：

The present invention provides a kind of system for carrying out fluidizing defeated ash with the self-produced purified gas of deduster comprising：Multiple dedusters, Half purified gas manifold and purified gas manifold is equipped between multiple dedusters, the air inlet of the deduster side wall lower ends passes through Half clean coal gas branch pipe is connected with the half purified gas manifold, the gas outlet of the deduster sidewall upper by clean coal gas branch pipe with The purified gas manifold is connected, and the upper end of the deduster is connected with the entrance of defeated grey air supply pipe, and the lower end of the deduster is set There are ash bucket, the side wall of the ash bucket to wear ash discharge conduit, the outlet of the ash discharge conduit is connected with defeated grey air supply pipe；Fluidizer, It is fixedly arranged on the lower end of the ash bucket, and the Fluidizer is located at the lower section of the entrance of the ash discharge conduit, under the Fluidizer End entrance is connected by fluidizing air supply pipe with the purified gas manifold, and the upper end outlet of the Fluidizer can connect with the ash bucket It is logical；Nitrogen big gun comprising nitrogen gas tank and multiple injection pipes, multiple injection pipes it is circumferentially spaced be arranged in the fluidisation Device, the entrance of the injection pipe are connected with the nitrogen gas tank, and the outlet of the injection pipe is pierced by the Fluidizer and torrent are arranged Injector.

In a preferred embodiment, the entrance of the ash discharge conduit be equipped with ash-collecting cover, the outlet of the ash discharge conduit with The defeated grey air supply pipe is connected so that scheduled angle is inclined, and the outlet of the defeated grey air supply pipe passes through defeated ash supervisor and ash cellar phase Even, the ash content for entering the defeated grey air supply pipe through the ash discharge conduit from the ash bucket can be in the clean coal in the defeated grey air supply pipe Under gas effect the ash cellar is imported through the defeated ash supervisor.

In a preferred embodiment, the Fluidizer includes ontology and splitter column, the sealing that the splitter column can be dismantled Set on the lower section of the ontology, it is described fluidisation air supply pipe outlet end stretch into the splitter column, through the fluidisation air supply pipe into The ash bucket can be entered by the ontology by entering the purified gas in the splitter column.

In a preferred embodiment, upper flange is equipped at the lower ending opening of the ontology, the upper end of the splitter column is opened Lower flange is equipped at mouthful, the ontology is connected with the splitter column by the upper flange and lower flange sealing.

In a preferred embodiment, what the outlet end of the fluidisation air supply pipe radially outward dissipated is equipped with multiple affluent-dividings Change pipe, the outlet end of multiple branches fluidisation pipes is circumferentially arranged at equal intervals, the outlet end of the fluidisation air supply pipe and described The outlet end of branch's fluidisation pipe is equipped with fluidisation nozzle.

In a preferred embodiment, the lid of the upper end sealing of the ontology of the Fluidizer sets fluidized disk, the fluidized disk Including disk body and multiple warp-wises fluidisation pipe, the disk body is equipped with multiple warp-wise slots, and each warp-wise slot interior sealing is embedded One warp-wise fluidisation pipe, the lower wall for protruding the warp-wise fluidisation pipe of the disk body lower surface are equipped with multiple air inlet ducts, Protrude the upper side wall interval of the warp-wise fluidisation pipe of the disk body upper surface is equipped with multiple ventholes.

In a preferred embodiment, fixed multiple broadwises fluidize endless tube, multiple broadwise fluidisations on the fluidized disk Endless tube is with one heart and spaced radial is arranged, and the broadwise fluidisation endless tube sealing is arranged in each warp-wise fluidisation pipe, is located at described The lower wall that warp-wise fluidizes the broadwise fluidisation endless tube in pipe is equipped with air admission hole, the latitude being located at outside warp-wise fluidisation pipe It is equipped with multiple gas vents to the upper side wall interval of fluidisation endless tube.

In a preferred embodiment, the upper end of the ontology of the Fluidizer is equipped with packing plate, and the packing plate is equipped with Multiple trepannings, what the trepanning interior energy moved up and down wears float valve.

In a preferred embodiment, the float valve includes bonnet and valve seat, is arranged between the valve seat and the bonnet Valve rod, sheathed spring on the valve rod, the valve seat, the spring are respectively positioned in the ontology, and the bonnet is located at described The tapping for being covered on the ontology that is external and can sealing.

In a preferred embodiment, the lower end of the bonnet is circumferentially arranged with sealing inclined-plane, the trepanning of the packing plate With peripheral wall is tilted, the sealing inclined-plane of the bonnet can be bonded with what the inclination peripheral wall of the trepanning sealed.

In a preferred embodiment, circumferentially spaced in the sealing inclined-plane of the bonnet to crack equipped with multiple, it is described to open Triangle at an acute angle is stitched, in the state that the sealing inclined-plane of the bonnet is not bonded completely with the inclination peripheral wall of the trepanning, institute This physical efficiency is stated by described crack to be connected with the ash bucket.

In a preferred embodiment, the torrent injector includes outer tube and inner tube, what said inner tube can move up and down It is arranged in the outer tube, projection the first upper inner ring plate and the second upper inner ring plate at the upper end interval of the outer tube wall are described The lower end projection slower inner ring plate of outer tube wall, the middle part of said inner tube, which is equipped with, inside contracts aditus laryngis, and said inner tube inside contracts the upper of aditus laryngis The lower end evagination for inside contracting aditus laryngis of outer ring plate in the outer projection in end, said inner tube sets outer ring plate, and the upper outer ring plate is located at described Between first upper inner ring plate and the second upper inner ring plate, and between having between the upper outer ring plate and the inner wall of the outer tube Gap, the lower outer ring plate are located at the lower section of the slower inner ring plate, and have between the lower outer ring plate and the inner wall of the outer tube Gap.

In a preferred embodiment, it is described in the state that the pressure of the nitrogen in the injection pipe reaches calibration value The slower inner ring plate for being connected to the outer tube of the lower outer ring plate sealing of inner tube, the upper outer ring plate sealing of said inner tube are connected to institute State the first upper inner ring plate of outer tube.

In a preferred embodiment, the half clean coal gas branch pipe is equipped with half purified gas manifold valve, the purified gas branch Pipe is equipped with purified gas manifold valve, and the upper end of the ash bucket is counted equipped with upper limit ash position, and the lower end of the ash bucket is equipped with lower limit ash position Meter, for lower limit ash position meter positioned at the top of the entrance of the ash discharge conduit, the ash discharge conduit is equipped with ash output valve, described defeated Grey air supply pipe is equipped with defeated grey steam supply valve, and the fluidisation air supply pipe is equipped with fluidisation steam supply valve, the half purified gas manifold valve, institute State purified gas manifold valve, upper limit ash position meter, lower limit ash position meter, the ash output valve, the defeated grey steam supply valve and described Fluidize steam supply valve with industry control mechatronics.

The present invention also provides a kind of methods for carrying out fluidizing defeated ash with the self-produced purified gas of deduster, wherein described to use dedusting The method that the self-produced purified gas of device carries out fluidizing defeated ash is carried out fluidizing defeated ash with the self-produced purified gas of deduster using as described above System, the method for carrying out fluidizing defeated ash with the self-produced purified gas of deduster include the following steps：Step a starts nitrogen big gun, makes Nitrogen in nitrogen gas tank enters torrent injector through injection pipe, by the torrent injector by the ash content in the ash bucket of deduster It breaks up and forms a cavity；Purified gas in step b, purified gas manifold enters through fluidizing air supply pipe in Fluidizer, into described Purified gas in Fluidizer enters back into the ash bucket and fills the cavity, and it is in fluidized suspension shape to make the ash content at the empty edge State；Step c enters defeated grey air supply pipe in the ash content of fluidized suspension state through ash discharge conduit, and enters in Self-duster described defeated Under purified gas effect in grey air supply pipe ash cellar is imported through defeated ash supervisor.

In a preferred embodiment, further include step a1 before the step a, close half on half clean coal gas branch pipe Purified gas manifold valve in purified gas manifold valve and clean coal gas branch pipe opens the defeated grey steam supply valve on the defeated grey air supply pipe and institute The supravasal ash output valve of ash discharge is stated, the purified gas in the deduster is diffused, until the pressure drop in the deduster Down to the first setup pressure value.

In a preferred embodiment, pass through the upper limit ash position meter and the lower limit ash position meter detection ash bucket on the ash bucket Interior grey position executes step a1 when alarm is counted in the upper limit ash position of the deduster, and report is counted in the lower limit ash position of the deduster When alert, the supravasal ash output valve of the ash discharge, the fluidisation steam supply valve on the fluidisation air supply pipe and the defeated ash are closed successively and is supplied Defeated grey steam supply valve on tracheae.

In a preferred embodiment, further include step d, the pressure drop in the deduster after the step c When down to the second setup pressure value, the half purified gas manifold valve and the purified gas manifold valve are opened, until the deduster Interior pressure rises to first setup pressure value.

In a preferred embodiment, in the step b, the clean coal of the float valve of the Fluidizer in the Fluidizer It is moved up in opened condition under the pressure of gas, the spring of the float valve is compressed, the bonnet of the float valve and the fluidisation Trepanning on the packing plate of the ontology of device is separated, and the purified gas in the Fluidizer enters the ash bucket by the float valve.

In a preferred embodiment, in the step b, the purified gas in the Fluidizer fluidizes pipe by warp-wise After air inlet duct enters in warp-wise fluidisation pipe, the venthole that a part of purified gas fluidizes pipe by the warp-wise enters the ash Bucket, the air admission hole that another part purified gas fluidizes endless tube by broadwise enter in broadwise fluidisation endless tube, and through the broadwise The gas vent for fluidizing endless tube enters the ash bucket.

The characteristics of present invention carries out fluidizing the method and system of defeated ash with the self-produced purified gas of deduster and advantage are：

1, the block clearing gas (high pressure nitrogen) that the present invention is sprayed by nitrogen big gun and torrent injector will be in dust collector ash hopper Ash content break up, while by purified gas manifold and fluidisation air supply pipe to Fluidizer provide fluidizing gas, sprayed by Fluidizer Fluidizing gas (purified gas of high pressure) so that the ash content in ash bucket is kept fluidized suspension state and can be through ash discharge conduit into defeated ash Air supply pipe provides defeated ash gas to defeated grey air supply pipe by deduster, and will enter defeated ash by defeated ash gas (purified gas) and supply The endotracheal ash delivery in fluidized suspension state to it is defeated ash supervisor, to import in ash cellar, the present invention realize fluidization technique with The defeated ash of concentrated phase is realized in the coupling of defeated gray technology, ensures that defeated ash is more smooth, can effectively be solved a wide range of continuity ash content blocking and be asked Topic, avoids ash-deposition from blocking, meanwhile, the present invention is using the high temperature purified gas of self-dedusting device purification to deposition in deduster Ash content in the ash bucket of lower end carries out fluidisation and Condensed transportation, and moisture is precipitated when cryogenic gas being avoided to convey and ash content is caused to block, Defeated grey gas consumption is saved, operating cost is reduced, reliability is high.

2, the ontology of Fluidizer is connected by the present invention with the sealing that splitter column can be dismantled, and is easily installed and repairs, by dividing The setting for flowing the fluidized disk or float valve on device ontology, makes fluidizing gas (purified gas) that can be uniformly entered by fluidized disk or float valve In ash bucket, promotes ash content in fluidizing gas (purified gas) effect low suspension fluidisation, create conditions for Condensed transportation.

3, the cooperation of each ring flat-plate of the inner tube and outer tube of the invention by torrent injector, to reach in injection overpressure When calibration value, block clearing gas only enters inner tube, and is accelerated by the Inner contracting aditus laryngis of inner tube, realizes the increasing of the accumulation of energy of block clearing gas Add, improve the flow velocity and pressure of block clearing gas, is blocked with being removed using the energy of high pressure nitrogen, good blocking cleaning effect.

Description of the drawings

The following drawings is only intended in doing schematical explanation and illustration to the present invention, not to limit the present invention model It encloses.

Fig. 1 is the structural schematic diagram of mechanical ash conveying device in the prior art.

Fig. 2 is the principle schematic of the defeated ash of dilute phase pneumatic in the prior art.

Fig. 3 is the principle schematic of concentrated phase Pneumatic ash conveying in the prior art.

Fig. 4 is the structural schematic diagram of cone pump concentrated phase pneumatic ash conveying plant in the prior art.

Fig. 5 is the side structure schematic view for the system that the present invention with the self-produced purified gas of deduster fluidize defeated ash.

Fig. 6 is a main structure diagram of the system that the present invention with the self-produced purified gas of deduster fluidize defeated ash.

Fig. 7 is another main structure diagram for the system that the present invention with the self-produced purified gas of deduster fluidize defeated ash.

Fig. 8 is the first embodiment of the Fluidizer for the system that the present invention with the self-produced purified gas of deduster fluidize defeated ash Main structure diagram.

Fig. 9 is the first embodiment of the Fluidizer for the system that the present invention with the self-produced purified gas of deduster fluidize defeated ash Overlooking structure diagram.

Figure 10 is the first embodiment of the Fluidizer for the system that the present invention with the self-produced purified gas of deduster fluidize defeated ash Float valve a schematic diagram.

Figure 11 is the first embodiment of the Fluidizer for the system that the present invention with the self-produced purified gas of deduster fluidize defeated ash Float valve another schematic diagram.

Figure 12 is the second embodiment of the Fluidizer for the system that the present invention with the self-produced purified gas of deduster fluidize defeated ash Main structure diagram.

Figure 13 is structural schematic diagrams of the A-A in Figure 12 to cutting line.

Figure 14 is the structural schematic diagram of the B-B direction cutting line in Figure 12.

Figure 15 is structural schematic diagrams of the C-C in Figure 13 to cutting line.

Figure 16 is that the front view structure of the nitrogen big gun for the system that the present invention with the self-produced purified gas of deduster fluidize defeated ash is shown It is intended to.

Figure 17 is a structure of the torrent injector for the system that the present invention with the self-produced purified gas of deduster fluidize defeated ash Schematic diagram.

Figure 18 is another knot of the torrent injector for the system that the present invention with the self-produced purified gas of deduster fluidize defeated ash Structure schematic diagram.

Figure 19 is the degree of contrast figure of the deduster of the deduster of the present invention and the mechanical ash conveying device of the prior art.

Figure 20 is the height of the deduster of the deduster of the present invention and the cone pump concentrated phase pneumatic ash conveying plant of the prior art Comparison diagram.

Drawing reference numeral explanation：

The prior art

100, deduster；101, intermediate ash bucket；102, scrapper conveyor；103, bucket elevator；104, big ash cellar；

200, deduster；201, nitrogen gate valve；202, cone pump；203, ash pipeline；204, big ash cellar；

The present invention

1, deduster；11, ash bucket；12, ash discharge conduit；121, ash-collecting cover；122, ash output valve；13, defeated grey air supply pipe；14、 Defeated ash steam supply valve；15, defeated ash supervisor；16, diffusion valve；17, ash cellar；

2, Fluidizer；21, ontology；211, plate is insulated；212, trepanning；213, peripheral wall is tilted；22, splitter column；23, float valve； 231, valve seat；232, bonnet；233, guide cylinder；234, valve rod；235, spring；236, it cracks；23 ＇, fluidized disk；231 ＇, disk body； 232 ＇, warp-wise fluidisation pipe；2321 ＇, air inlet duct；2322 ＇, venthole；233 ＇, broadwise fluidize endless tube；2331 ＇, air admission hole； 2332 ＇, gas vent；24, upper flange；25, lower flange；26, air supply pipe is fluidized；27, steam supply valve is fluidized；28, branch's fluidisation pipe； 29, nozzle is fluidized；

3, nitrogen big gun；31, nitrogen gas tank；32, injection pipe；321, normally closed drain valve；33, branch pipe is sprayed；331, normally open valve； 332, impulse electromagnetic valve；

4, torrent injector；41, outer tube；411, the first upper inner ring plate；412, the second upper inner ring plate；413, slower inner ring plate； 42, inner tube；421, aditus laryngis is inside contracted；422, upper outer ring plate；423, lower outer ring plate；

5, half purified gas manifold；6, half clean coal gas branch pipe；61, half purified gas manifold valve；

7, purified gas manifold；8, clean coal gas branch pipe；81, purified gas manifold valve；

α, upper angle；β, lower angle；γ, angle；H, upper limit ash position is counted；L, lower limit ash position is counted；P, pressure detecting meter；HD1、 Difference in height；HD2, difference in height.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

In addition to non-individual defines the direction pointed out, the directions such as up, down, left, right, before and after being referred to herein are The directions such as the up, down, left, right, before and after being subject in Fig. 6 shown in the present invention, illustrate in this together.

Embodiment one

As shown in Fig. 5 to Figure 18, the present invention provides a kind of system for carrying out fluidizing defeated ash with the self-produced purified gas of deduster, Including multiple dedusters 1, half purified gas manifold 5 and purified gas manifold 7, the deduster 1 are equipped between multiple dedusters 1 The air inlet of side wall lower ends is connected by half clean coal gas branch pipe 6 with the half purified gas manifold 5,1 sidewall upper of the deduster Gas outlet be connected with the purified gas manifold 7 by clean coal gas branch pipe 8, the upper end of the deduster 1 and defeated grey air supply pipe 13 Entrance be connected, the lower end of the deduster 1 is equipped with ash bucket 11, and the side wall of the ash bucket 11 wears ash discharge conduit 12, it is described go out The outlet of grey conduit 12 is connected with defeated grey air supply pipe 13；Fluidizer 2 is fixedly arranged on the lower end of the ash bucket 11, the Fluidizer 2 Positioned at the lower section of the entrance of the ash discharge conduit 12, the lower inlet of the Fluidizer 2 by fluidize air supply pipe 26 with it is described net Gas main 7 is connected, and the upper end outlet of the Fluidizer 2 can be connected to the ash bucket 11；Nitrogen big gun 3 comprising nitrogen gas tank 31 With multiple injection pipes 32, multiple injection pipes 32 it is circumferentially spaced be arranged in the Fluidizer 2, the injection pipe 32 enters Mouth is connected with the nitrogen gas tank 31, and the outlet of the injection pipe 32 is pierced by the Fluidizer 2 and torrent injector 4 is arranged.

Specifically, as shown in Figures 5 to 7, deduster 1 is substantially cylindrical in shape, and it is interior that there is filter core, for filtering half purified gas In ash content, deduster 1 is the deduster of the deduster that goes out into side of side, certain deduster 1 or side into ejection, internal tool Body structure is known in the art, and multiple dedusters 1 can be in that a row is arranged, then half purified gas manifold 5 and purified gas manifold 7 In the side of the row deduster 1, multiple dedusters 1 can be arranged at two rows, then half purified gas manifold 5 and purified gas manifold 7 Between the two rows deduster 1, multiple dedusters 1 also can be in multiple rows of setting, wherein the multiple dedusters 1 often arranged are laterally spaced Setting, when multiple dedusters 1 are two row or multi-row, the front and back one-to-one correspondence of the deduster 1 respectively arranged, per adjacent two rows of dedustings Half purified gas manifold 5 and purified gas manifold 7 is arranged in space between device 1, and purified gas manifold 7 is located at half purified gas manifold's 5 Top sets pipeline in order to connect, and what half purified gas from half purified gas manifold 5 can shunt enters through fifty-fifty clean coal gas branch pipe 6 In each deduster 1, and after purification, self-cleaning branch gas tube 8 imports the purified gas that purified gas manifold 7 forms high pressure, i.e. deduster 1 The space of inner filter core lower part is half purified gas, and the space on filter core top is purified gas, and content below will be with two rows of dedusters 1 Example illustrates, and certainly, multiple dedusters 1 can also be arranged in irregular interval, is not limited, is set on deduster 1 herein The pressure detecting meter P of its interior pressure can be detected by having, and the ash bucket 11 of 1 lower end of deduster is substantially in inverted cone-shaped, for storing temporarily Ash content, the ash discharge conduit 12 of 11 side wall of ash bucket are used to the ash content in ash bucket 11 being expelled in defeated grey air supply pipe 13, pass through defeated ash Defeated ash gas (purified gas in deduster 1 enters defeated grey air supply pipe 13 through end opening thereon) in air supply pipe 13, makes defeated ash supply Ash content in tracheae 13 can be exported in a manner of the defeated ash of concentrated phase；Fluidizer 2 substantially be in fall Pagoda-shaped, fluidisation 26 one end of air supply pipe with Purified gas manifold 7 is connected, and one end is stretched into Fluidizer 2, to supply purified gas into Fluidizer 2, using with certain clean coal Gas fluidizes ash content ash content in ash bucket 11, avoids fluidizing gas temperature is too low moisture is caused to be precipitated and ash content is caused to block； Nitrogen big gun 3 is as fluidisation starter, to open the high pressure nitrogen of release temporarily by nitrogen gas tank 31, through injection pipe 32 and torrent Injector 4 is broken up ash content with the ash content deposited in high pressure and high speed impact ash bucket 11, is conducive to follow-up ash content in fluidizing gas Fluidisation under effect.

Further, as shown in figure 5, the entrance of the ash discharge conduit 12 is equipped with ash-collecting cover 121, the ash discharge conduit 12 Outlet is connected with the defeated grey air supply pipe 13 with scheduled angle is inclined, and the outlet of the defeated grey air supply pipe 13 is main by defeated ash Pipe 15 is connected with ash cellar 17, and the ash content for entering the defeated grey air supply pipe 13 through the ash discharge conduit 12 from the ash bucket 11 can be in institute It states and imports the ash cellar 17 through the defeated ash supervisor 15 under the purified gas effect in defeated grey air supply pipe 13, realize the output of ash content, Specifically, ash-collecting cover 121 is substantially in toroidal, the ash content that the setting of ash-collecting cover 121 is conducive in ash bucket 11 enters ash discharge conduit 12, ash discharge conduit 12 is bottom-up to be obliquely installed, i.e., ash discharge conduit 12 be located at one end in ash bucket 11 less than ash discharge conduit 12 with The connected one end of defeated ash air supply pipe 13, it is in angle, the setting of the angle to make ash discharge conduit 12 and the horizontal segment of defeated grey air supply pipe 13 Conducive to the conveying of ash content.

Further, as shown in Fig. 5, Fig. 8 and Figure 12, the Fluidizer 2 includes ontology 21 and splitter column 22, the shunting The sealing that tower 22 can be dismantled stretches into the splitter column 22 set on the lower section of the ontology 21, the outlet end of the fluidisation air supply pipe 26 Interior, the purified gas entered in the splitter column 22 through the fluidisation air supply pipe 26 can enter the ash bucket by the ontology 21 11, specifically, the ontology 21 of Fluidizer 2 is substantially cylindrical in shape, splitter column 22 is substantially in that semiellipse is spherical, and the upper end of splitter column 22 is opened Mouth is opposite with the lower ending opening of ontology 21 and what can be sealed connects, and the splitter column 22 is stretched into the outlet end of fluidisation air supply pipe 26 It is interior, make fluidizing gas (purified gas) that can first assemble in splitter column 22 and be uniformly distributed, conducive to ash bucket 11 is uniformly entered.

Further, as shown in figures 12 and 14, what the outlet end of the fluidisation air supply pipe 26 radially outward dissipated is equipped with Multiple branches fluidize pipe 28, and the outlet end of multiple branch's fluidisation pipes 28 is circumferentially arranged at equal intervals, the fluidisation air supply pipe 26 outlet end and the outlet end of branch fluidisation pipe 28 are equipped with fluidisation nozzle 29, specifically, fluidisation air supply pipe 26 goes out The fluidisation nozzle 29 at mouth end and the fluidisation nozzle 29 of the outlet end of each branch fluidisation pipe 28 substantially form pistil shape, multiple affluent-dividings The setting for changing pipe 28, the fluidizing gas convenient for entering splitter column 22 through fluidizing air supply pipe 26 are uniformly distributed in splitter column 22, Ash bucket 11 is uniformly ascended into conducive to fluidizing gas.

Further, as shown in figs. 8 and 12, upper flange 24, the shunting are equipped at the lower ending opening of the ontology 21 Be equipped with lower flange 25 at the upper end opening of tower 22, the ontology 21 and the splitter column 22 by the upper flange 24 and it is described under The sealing of flange 25 is connected, wherein the diameter of upper flange 24 is more than the lower end of the diameter and ontology 21 of the upper end opening of splitter column 22 The diameter of opening, circumferentially equally spaced multiple bolt apertures of setting on the periphery of upper flange 24, on the periphery of lower flange 25 also edge The circumferential equally spaced multiple bolt apertures of setting, the bolt apertures of upper flange 24 are corresponded with the bolt apertures of lower flange 25, and are passed through The connectors such as bolt realize connection, wherein sealing ring can also be arranged between upper flange 24 and lower flange 25, to ensure the close of the two Envelope connection.

As shown in Figure 12 to Figure 15, in one embodiment, the lid of the upper end sealing of the ontology 21 of the Fluidizer 2 sets fluidisation 23 ＇ of disk, 23 ＇ of the fluidized disk include that 231 ＇ of disk body and multiple warp-wises fluidisation 232 ＇ of pipe, 231 ＇ of the disk body are equipped with multiple warps To slot, each warp-wise slot interior sealing is embedded warp-wise fluidisation 232 ＇ of pipe, protrudes 231 lower surfaces ＇ of the disk body The lower wall of warp-wise fluidisation pipe 232 ＇ be equipped with 2321 ＇ of multiple air inlet ducts, protrude the described of 231 upper surfaces ＇ of the disk body The upper side wall interval of 232 ＇ of warp-wise fluidisation pipe is equipped with 2322 ＇ of multiple ventholes, specifically, fluidized disk 23 ＇ sealings are covered on The upper end of ontology 21, the purified gas in Fluidizer 2 can enter ash bucket 11 by 23 ＇ of fluidized disk, and 231 ＇ of disk body of 23 ＇ of fluidized disk is used Separate Fluidizer 2 and ash bucket 11, rounded tabular, multiple warp-wise slots on 231 ＇ of disk body are in the center phase of 231 ＇ of disk body It hands over, and 231 ＇ even partitions of disk body are made it be divided into multiple sector regions, it is in pipe that warp-wise, which fluidizes 232 ＇ of pipe, by multiple warp-wise slots Shape, and along the warp-wise slot that the radial direction of 231 ＇ of disk body is embedded at 231 ＇ of disk body, warp-wise fluidisation 232 ＇ of pipe after being embedded protrudes from disk The upper and lower surface of 231 ＇ of body, and under the arc surfaced of 231 lower surfaces ＇ of protrusion disk body (namely in Fluidizer 2) Side wall is arranged 2321 ＇ of air inlet duct of multiple bar shapeds, ensures sufficient air inlet, 231 upper surfaces ＇ of protrusion disk body (namely it is located at ash bucket 11 It is interior) the upper side wall of arc surfaced multiple 2322 ＇ of venthole are set, 2322 ＇ of multiple ventholes can fluidize the axis of 232 ＇ of pipe along warp-wise To being uniformly arranged at equal intervals, ensure the uniform outlet in each region to ash bucket 11, preferably, warp-wise fluidisation 232 ＇ of pipe can be embedded at Sealing welding after in warp-wise slot is avoided from installation gap gas leakage, and each warp-wise fluidizes 232 ＇ of pipe in the center phase interpenetrating of 231 ＇ of disk body It inserts, and encapsulation process is done in junction, avoids gas leakage, it is preferred that four or six warp-wise slots are set on 231 ＇ of disk body, it is corresponding , it is four or six that warp-wise, which fluidizes 232 ＇ of pipe,.

In this embodiment, further, as shown in Figure 13 and Figure 15, fixed multiple zonal flows on 23 ＇ of the fluidized disk Change 233 ＇ of endless tube, 233 ＇ of multiple broadwise fluidisation endless tubes is with one heart and spaced radial is arranged, and 233 ＇ of the broadwise fluidisation endless tube is close Envelope is arranged in each warp-wise fluidisation 232 ＇ of pipe, 233 ＇ of broadwise fluidisation endless tube being located in 232 ＇ of warp-wise fluidisation pipe Lower wall be equipped with 2331 ＇ of air admission hole, be located at the upside of 233 ＇ of broadwise fluidisation endless tube outside warp-wise fluidisation pipe 232 ＇ Wall interval is equipped with 2332 ＇ of multiple gas vents, specifically, the radial section of 233 ＇ of broadwise fluidisation endless tube is generally round, each Broadwise fluidizes 233 ＇ of endless tube along the surface of 231 ＇ of disk body is rounded or polygon setting, and each broadwise fluidizes 233 ＇ of endless tube along disk body The radial direction of 231 ＇ is fixedly arranged on 231 upper surfaces ＇ of disk body at equal intervals, and each broadwise fluidisation 233 ＇ of endless tube is arranged in each warp-wise fluidisation pipe 232 ＇, and in the part being arranged in 232 ＇ of warp-wise fluidisation pipe, realize air inlet by the way that 2331 ＇ of air admission hole is arranged, and each in being pierced by Warp-wise fluidizes the part of 232 ＇ of pipe, and equally spaced multiple 2332 ＇ of gas vent of setting of axial direction of 233 ＇ of endless tube are fluidized along broadwise, In, each warp-wise fluidisation 232 ＇ of pipe and 233 ＇ of each broadwise fluidisation endless tube are in staggeredly spider reticulation, with by it is equally distributed it is multiple go out 2322 ＇ of stomata and 2332 ＇ of gas vent are discharged into fluidizing gas to each region of ash bucket 11, ensure uniformly to go out to each region of ash bucket 11 Gas makes the bottom of ash bucket 11 form air cushion layer, to balance the gravity of ash content, enhances ash content mobility, greatly reinforces ash content fluidised form The effect of change enters ash discharge conduit 12 conducive to the ash content of fluidized state.

In this embodiment, the inside nominal diameter of 232 ＇ of the warp-wise fluidisation pipe is more than the public affairs of 233 ＇ of broadwise fluidisation endless tube Claim latus rectum, the part that broadwise fluidisation 233 ＇ of endless tube is arranged in 232 ＇ of warp-wise fluidisation pipe is enable to be fully located at 232 ＇ of warp-wise fluidisation pipe It is interior, it is transmitted in 233 ＇ of broadwise fluidisation endless tube conducive to by the fluidizing gas in 232 ＇ of warp-wise fluidisation pipe, the warp-wise fluidisation pipe The width of warp-wise slot of the inside nominal diameter of 232 ＇ more than 231 ＇ of the disk body enables warp-wise fluidisation 232 ＇ of pipe to be embedded at 231 ＇ of disk body Warp-wise slot in, and realize that sealing between the two is connected by welding, and warp-wise fluidisation 232 ＇ of pipe can be made to protrude from disk body The lower surface of 231 ＇ of upper surface and disk body of 231 ＇ is conducive to setting 2321 ＇ of air inlet duct and 2322 ＇ of venthole, wherein 231 ＇ of disk body It is made of the Q235B steel plates of 6mm of thickness, the width of the warp-wise slot on 231 ＇ of disk body is 40mm, and warp-wise fluidizes the public affairs of 232 ＇ of pipe Latus rectum is referred to as 80mm, and the width that warp-wise fluidizes 2321 ＇ of air inlet duct on 232 ＇ of pipe is 20mm, and warp-wise fluidizes the outlet on 232 ＇ of pipe A diameter of 20mm of 2322 ＇ of hole, the inside nominal diameter that broadwise fluidizes 233 ＇ of endless tube are 50mm, and broadwise fluidizes the air admission hole of 233 ＇ of endless tube A diameter of 50mm of 2331 ＇, broadwise fluidize a diameter of 20mm of 2332 ＇ of gas vent of 233 ＇ of endless tube, and warp-wise fluidisation 232 ＇ of pipe is set The hole for broadwise fluidisation 233 ＇ of the endless tube a diameter of 57mm worn is set, and sealing welding is done after broadwise fluidisation 233 ＇ of endless tube is worn Processing also can be set as that other are suitably sized, and this is not restricted according to actual needs certainly.

As shown in Figs. 8 to 11, in another embodiment, the upper end of the ontology 21 of the Fluidizer 2 is equipped with packing plate 211, the packing plate 211 is equipped with multiple trepannings 212, and what 212 interior energy of the trepanning moved up and down wears float valve 23, specifically , 211 generally round tablet of plate is insulated, the multiple trepannings 212 insulated on plate 211 are uniformly distributed on packing plate 211, or In regularity distribution (such as matrix distribution, annular spread etc.), so that the fluidizing gas in splitter column 22 can uniformly enter In ash bucket 11, float valve 23 can be opened and closed trepanning 212, so that the purified gas in Fluidizer 2 is entered ash bucket 11 by float valve 23, realize stream Change the connection and closing of device 2 and ash bucket 11.

In this embodiment, further, as shown in Figure 10 and Figure 11, the float valve 23 includes bonnet 232 and valve seat 231, valve rod 234 is set between the valve seat 231 and the bonnet 232, sheathed spring 235 on the valve rod 234, the valve seat 231, the spring 235 is respectively positioned in the ontology 21, and the bonnet 232 is located at outside the ontology 21 and what can be sealed is covered on At the trepanning 212 of the ontology 21, specifically, the 231 generally planar shape of valve seat of float valve 23, in favor of bearing fluidizing gas Pressure, valve rod 234 are in substantially rod-shaped, and spring 235 is sheathed on valve rod 234 and can be compressed along valve rod 234, and bonnet 232 is substantially Hemispherical lid is set to energy sealing cover at trepanning 212, and the diameter of valve seat 231 is more than the diameter of trepanning 212, spring 235 Outer diameter is more than the diameter of trepanning 212, when the pressure for the fluidizing gas that valve seat 231 is subject to is more than the elastic force of spring 235 itself, Spring 235 is compressed between valve seat 231 and the lower surface of packing plate 211, and the trepanning 212 of bonnet 232 and packing plate 211 divides From, make fluidizing gas (purified gas) that can enter in ash bucket 11 through the space between bonnet 232 and trepanning 212, and pass through control stream Change the air pressure in device 2, controls the aperture of bonnet 232.

Preferably, as shown in figure 11, insulating the lower surface projection guide cylinder 233 of plate 211, valve seat 231, valve rod 234 and bullet Spring 235 is respectively positioned in guide cylinder 233, when valve seat 231 is moved up or is moved down, peripheral wall of the valve seat 231 along guide cylinder 233 It moves up and down, spring 235 compresses or restores up and down along the peripheral wall of guide cylinder 233, by guide cylinder 233, to ensure 23 edge of float valve Track movement above and below vertical, avoids deviating, makes float valve that can only move and cannot generate in the horizontal direction in the vertical direction Displacement ensures leakproofness and fluid effect.

In this embodiment, further, as shown in figure 11, the lower end of the bonnet 232 is circumferentially arranged with sealing inclined-plane, The trepanning 212 of the packing plate 211, which has, tilts peripheral wall 213, and the sealing inclined-plane of the bonnet 232 can be with the trepanning 212 The fitting that peripheral wall 213 seals is tilted, specifically, the sealing inclined-plane for the setting circumferential direction that the lower periphery of bonnet 232 tilts down, packing Outside expanding setting ensures the valve of float valve 23 to form its circumferential inclination peripheral wall 213 from bottom to top for the trepanning 212 of plate 211 Cap 232 can match with the trepanning 212 of packing plate 211.Further, the angle γ for tilting peripheral wall 213 and horizontal plane Less than 60 degree namely the angle of the sealing inclined-plane and horizontal plane is less than 60 degree, that is, tilts the angle γ of peripheral wall 213 and horizontal plane Equal to the angle of sealing inclined-plane and horizontal plane, preferably, the angle is 48 degree, the setting of the angle can guarantee ash content in gravity feelings It is not fallen off under condition.

In this embodiment, further, as shown in figure 11, circumferentially spaced in the sealing inclined-plane of the bonnet 232 to set Have it is multiple crack 236,236 triangles at an acute angle that crack, in sealing inclined-plane and the trepanning 212 of the bonnet 232 Peripheral wall 213 is tilted completely in the state of fitting, the ontology 21 can pass through described in crack and 236 be connected with the ash bucket 11, In the state that the sealing inclined-plane of the bonnet 232 is bonded completely with the inclination peripheral wall 213 of the trepanning 212, the ontology 21 It is isolated with the ash bucket 11, that is, cracking 236 can not be connected to ontology 21 and ash bucket 11, as bonnet 232 is gradually covered on trepanning On 212, cracking 236 can gradually be enclosed, until be covered on completely in trepanning 212, crack 236 is sealed completely, 236 use of cracking In purging the ash content in sealing inclined-plane before bonnet 232 is completely sealed in trepanning 212, bonnet 232 is not complete with trepanning 212 Before hermetically sealed, the fluidizing gas (purified gas) in ontology 21 can ensure sealing inclined-plane cleaning by cracking 236 into ash bucket 11 It is dustless, and then ensure leakproofness, sealing is reliable and stable.

Further, as shown in Figure 16 to Figure 18, the torrent injector 4 includes outer tube 41 and inner tube 42, said inner tube 42 can move up and down be arranged in the outer tube 41, projection the first upper inner ring plate at the upper end interval of 41 inner wall of the outer tube 411 and the second upper inner ring plate 412, the lower end projection slower inner ring plate 413 of 41 inner wall of the outer tube, the middle part of said inner tube 42 is equipped with Inside contract aditus laryngis 421, outer ring plate 422, said inner tube 42 inside contract larynx in projection outside the upper end for inside contracting aditus laryngis 421 of said inner tube 42 The lower end evagination of mouth 421 sets outer ring plate 423, and the upper outer ring plate 422 is located at the first upper inner ring plate 411 and described second Between upper inner ring plate 412, and there is gap, the lower outer ring plate between the upper outer ring plate 422 and the inner wall of the outer tube 41 423 are located at the lower section of the slower inner ring plate 413, and have gap between the lower outer ring plate 423 and the inner wall of the outer tube 41, (value of statistical indicant herein that can impact in ash bucket enough when not reaching calibration value with the air pressure of the high pressure nitrogen in injection pipe 32 Ash content be advisable), the nitrogen in injection pipe 32 can be divided into two branches, and the first branch, which enters inner tube 42 and is discharged, sprays into ash bucket 11, With impact accumulation ash content, the second branch successively through between lower outer ring plate 423 and outer tube 41 gap, slower inner ring plate 413 with it is interior Gap between gap, inner tube 42 between pipe 42 and the gap between outer tube 41, the second upper inner ring plate 412 and inner tube 42, on The gap heel row out ash bucket 11 between gap and the first upper inner ring plate 411 and inner tube 42 between outer ring plate 422 and outer tube 41, In, the aditus laryngis 421 that inside contracts of inner tube 42 is radially-inwardly to be recessed, the inclined wall for inside contracting the lower section of aditus laryngis 421 of inner tube 42 with The lower angle β of vertical plane is less than the upper angle α of the inclined wall and vertical plane for inside contracting 421 top of aditus laryngis of inner tube 42, in favor of Effect is broken up in rapid ejection of the high pressure nitrogen after inside contracting 421 compression acceleration of aditus laryngis, guarantee, i.e. inner tube 42 is that first necking down is expanded again Neck, in necking down, flow velocity improves air-flow, and potential energy is kinetic energy, and for air-flow when expanding neck, kinetic energy is converted into potential energy, forms shock wave Face, the shock surface possess the potential energy that member is higher than stream pressure, can easily push the ash content being blocked in above torrent injector open, be Fluidisation creates conditions.

Further, as shown in figure 18, in the state that the pressure of the nitrogen in the injection pipe 32 reaches calibration value, The slower inner ring plate 413 for being connected to the outer tube 41 that the lower outer ring plate 423 of said inner tube 42 seals, the upper outer shroud of said inner tube 42 The the first upper inner ring plate 411 for being connected to the outer tube 41 that plate 422 seals, makes the nitrogen in injection pipe 32 can only be by first The inner tube 42 on road is simultaneously discharged, and cannot be introduced into the second branch, ensures that nitrogen fully enters in inner tube 42 and accelerates, ensures that nitrogen accelerates Effect and effect is broken up to ash content in the ash bucket 11.The present invention is by the special construction of torrent injector 4 to flowing in the inner The flowing of high pressure nitrogen is constrained, and using inside contract aditus laryngis 421 structure and inner tube 42 in moved up in outer tube 41 with change stream Road constrains stream of nitrogen gas, converts the kinetic energy that a part for high pressure nitrogen can not be used for that ash content is pushed to block to pressure potential, and To nitrogen supercharging, increase block clearing gas energy, improves block clearing effect.

Further, as shown in figure 5, the half clean coal gas branch pipe 6 is equipped with half purified gas manifold valve 61, the purified gas Branch pipe 8 is equipped with purified gas manifold valve 81, and for starting or closing gas purification work, the upper end of the ash bucket 11 is equipped with the upper limit H is counted in grey position, and the lower end of the ash bucket 11 is equipped with lower limit ash position and counts L, and lower limit ash position meter L is located at entering for the ash discharge conduit 12 The top (preferably, at the top 500mm for the entrance that lower limit ash position meter L is located at ash discharge conduit 12) of mouth, in time to ash bucket 11 Interior grey position early warning avoids grey position from dropping to the lower section of lower limit ash position meter L, and fluidizing gas (purified gas) is caused to be directly entered ash (it is technology known in the state of the art, such as radio frequency admittance instrument, pressure sensing that wherein L is counted in upper limit ash position meter H and lower limit ash position to bucket 11 Device etc.), and ensure that the entrance of ash discharge conduit 12 is always positioned in ash content, the ash discharge conduit 12 is equipped with ash output valve 122, described Defeated ash air supply pipe 13 is equipped with defeated grey steam supply valve 14, and the fluidisation air supply pipe 26 is equipped with fluidisation steam supply valve 27, half clean coal Gas branch pipe valve 61, the purified gas manifold valve 81, the upper limit ash position meter H, the lower limit ash position meter L, the ash output valve 122, The defeated grey steam supply valve 14 and the fluidisation steam supply valve 27 are led to industry control mechatronics with realizing that the information of each valve is fed back It crosses industrial personal computer and realizes chain control, such as when the ash amount in ash bucket 11 is more than upper limit set value, H is counted by signal in upper limit ash position Industrial personal computer is fed back, half purified gas manifold valve 61 is opened in industrial personal computer control, purified gas manifold valve 81 is closed, to cut off gas purification pipe Road, while chain control ash output valve 122 and defeated grey steam supply valve 14 are opened, and can be drained by deduster 1 in defeated grey air supply pipe 13 Purified gas, so that a small amount of ash content is inhaled into defeated grey air supply pipe 13 under negative pressure gas flow effect and is pulled away into defeated ash Supervisor 15 opens the defeated grey pattern (i.e. the defeated ash of dilute phase) of injection, and can diffuse and be depressured for the emptying of deduster 1, to wait for its internal pressure After power meets the pressure of the defeated ash of concentrated phase, then chain control impulse electromagnetic valve 332 is opened, and provides block clearing gas, and in pulse electricity After magnet valve 332 is opened 0.1 second, chain unlatchings fluidizes steam supply valve 27, with from purified gas manifold 7 through fluidisation air supply pipe 26 to Fluidizer The purified gas that high pressure is provided in 2, is used for the fluidisation of ash content, wherein industrial personal computer is technology well known in the prior art, is not done herein Limitation.

Further, as shown in figure 16, the injection pipe 32 is equipped with normally closed drain valve 321, on the injection pipe 32 simultaneously Connection is equipped at least two injection branch pipes 33, and a normally open valve 331 and a pulse are respectively provided on each injection branch pipe 33 Solenoid valve 332, each interior latus rectum for spraying the impulse electromagnetic valve 332 on branch pipe 33 is unequal, specifically, normally closed draining Valve 321 is used to that ponding in injection pipe 32 to be discharged, and normally closed drain valve 321 is in off state under normal condition, when needing draining It is then turned on, certainly, also can be as needed, a normally closed drain valve is respectively set on each injection branch pipe 33, normally open valve 331 is normal State, which is in an open state, is needing the when of overhauling a certain injection branch pipe 33 to turn off, and impulse electromagnetic valve 332 is to close in normal condition State is opened in the open signal for receiving industrial personal computer and provides block clearing gas again, by the way that the pulse on each injection branch pipe 33 is electric The interior latus rectum of magnet valve 332 is set as unequal, can provide the supply of the high pressure nitrogen needed for various working, normally closed drain valve 321, The concrete structure of normally open valve 331 and impulse electromagnetic valve 332 is structure well known in the prior art, and this will not be repeated here, one In preferred embodiment, injection branch pipe 33 is two, and the impulse electromagnetic valve 332 on an injection branch pipe 33 is two cun of impulse electromagnetic valves, Impulse electromagnetic valve 332 on another injection branch pipe 33 is three cun of impulse electromagnetic valves, and is selected according to different operating modes by industrial personal computer Property control open and close.Further, the nitrogen gas tank 31 of nitrogen big gun 3 is substantially cylindrical in shape, and outlet end is connected with each injection pipe 32, Its outlet end can also be equipped with pressure sensor, temperature sensor for detecting, showing and fed back to industrial personal computer (or controller) And flow sensor.

The present invention's carries out the system for fluidizing defeated ash with the self-produced purified gas of deduster, and block clearing gas is provided by nitrogen big gun 3 (high pressure nitrogen) utilizes the impulse electromagnetic valve 332 of nitrogen big gun 3 to open moment, and abrupt release is in the nitrogen gas tank 31 of nitrogen big gun High pressure nitrogen, hence for it is defeated ash block or unload ash block carry out block clearing, by torrent injector 4 to block clearing gas accelerate It is ejected in ash bucket 11, the ash content in ash bucket 11 is broken up, meanwhile, deduster 1 enters the high temperature of purified gas manifold 7 after purifying High pressure purified gas, enter Fluidizer 2 through fluidizing air supply pipe 26, fluidizing gas be provided, so that ash content in ash bucket 11 is kept Fluidized suspension state, by ash discharge conduit 12 by the ash delivery of fluidized suspension state to defeated grey air supply pipe 13, and by removing certainly Ash content Condensed transportation to defeated ash is responsible for 15 by the purified gas that 1 top of dirt device enters defeated grey air supply pipe 13, as pressure in deduster 1 is big The pressure needed for the defeated ash of concentrated phase (is more than the first setup pressure value, which is known to the defeated gray technology of existing concentrated phase), can be advanced Row emptying is diffused (by opening defeated grey steam supply valve 14, or the diffusion valve 16 by 1 top of deduster), such as 1 internal pressure of deduster Power is less than pressure needed for the defeated ash of concentrated phase (being less than the second setup pressure value, which is known to the defeated gray technology of existing concentrated phase), can Half purified gas manifold valve 61 and purified gas manifold valve 81 are opened, pressure is supplemented in purifying course of gas.The present invention realizes stream The coupling of change technology and the defeated gray technology of concentrated phase, fluid effect is high, and defeated ash is more smooth, and it is stifled effectively to solve a wide range of continuity ash content Plug problem, avoids ash-deposition from blocking, and saves defeated grey gas consumption, construction investment is few, and operating cost is low, and maintenance cost is few.Such as Fig. 7 Shown, only Fluidizer and nitrogen big gun is arranged in the ash bucket lower end of deduster 1 in the present invention, can shorten height of the deduster 1 apart from ground Degree, height much smaller than the deduster in Fig. 6 apart from ground of height of the deduster 1 apart from ground in especially Fig. 7 and existing Height of the deduster apart from ground in technology Fig. 4 reduces the height of integrated steel-structure, reduces civil engineering costs, civil engineering steel structure The investment of frame can at least reduce 25%, and height of the deduster 1 apart from ground in the present invention especially shown in Fig. 7 is much smaller than Height of the deduster 100 of mechanical ash conveying device in the prior art shown in Fig. 1 apart from ground, forms therebetween difference in height HD1 (as shown in figure 19), and height of the deduster 1 apart from ground in the present invention shown in Fig. 7 is less than the existing skill shown in Fig. 4 Height of the deduster 200 of cone pump concentrated phase pneumatic ash conveying plant in art apart from ground forms therebetween height difference H D2 (as shown in figure 20), the height of deduster 1 of the invention apart from ground can at least reduce by 25% or even energy compared to the prior art Reach 33.3%, and with the increase of deduster number, the expense of saving is more.

Embodiment two

The present invention also provides a kind of methods for carrying out fluidizing defeated ash with the self-produced purified gas of deduster, wherein described to use dedusting The method that the self-produced purified gas of device carries out fluidizing defeated ash is carried out fluidizing defeated ash with the self-produced purified gas of deduster using as described above System, structure, operation principle and the effect and embodiment of the system for the self-produced purified gas of deduster fluidize defeated ash One all same, details are not described herein, and the method for carrying out fluidizing defeated ash with the self-produced purified gas of deduster includes the following steps：

Step a starts nitrogen big gun 3, so that the nitrogen in nitrogen gas tank 31 is entered torrent injector 4 through injection pipe 32, passes through institute It states torrent injector 4 and the ash content in the ash bucket 11 of deduster 1 is broken up to and formed a cavity, provide safeguard for fluidisation work；

Purified gas in step b, purified gas manifold 7 enters through fluidizing air supply pipe 26 in Fluidizer 2, into the Fluidizer Purified gas in 2 enters the ash bucket 11 and fills the cavity, and it is in fluidized suspension state to make the ash content at the empty edge, is The defeated ash of concentrated phase creates conditions；

Step c enters defeated grey air supply pipe 13 in the ash content of fluidized suspension state through ash discharge conduit 12, and in Self-duster 1 15 are responsible for through defeated ash import ash cellar 17 under into the purified gas effect in the defeated grey air supply pipe 13.

Further, in the step a, when the pressure for entering the nitrogen in the injection pipe 32 reaches calibration value, The inner tube 42 of the torrent injector 4 moves up under the pressure effect of nitrogen, under the inner tube 42 of the torrent injector 4 Outer ring plate 423 seal the outer tube 41 for being connected to the torrent injector 4 slower inner ring plate 413, the torrent injector 4 it is interior First upper inner ring plate 411 of the outer tube 41 for being connected to the torrent injector 4 that the upper outer ring plate 422 of pipe 42 seals, the spray The nitrogen penetrated in pipe 32 sprays into the ash bucket 11 through inside contracting after aditus laryngis 421 accelerates for the inner tube 42 of the torrent injector 4, with logical It crosses torrent injector 4 to again speed up the high pressure nitrogen for entering inner tube 42, realizes the accumulation of energy to high pressure nitrogen, ensure high pressure nitrogen Into the speed and impact dynamics of ash bucket 11, it is ensured that break up the ash content in ash bucket 11, realize block clearing, be subsequent fluidisation work with Defeated ash work provides safeguard.

Further, further include step a1 before the step a, close half purified gas branch on half clean coal gas branch pipe 6 Purified gas manifold valve 81 on pipe valve 61 and clean coal gas branch pipe 8 opens 14 He of defeated grey steam supply valve on the defeated grey air supply pipe 13 Ash output valve 122 on the ash discharge conduit 12, diffuses the purified gas in the deduster 1, until in the deduster 1 Pressure reduction to the first setup pressure value, to meet pressure needed for the defeated ash of concentrated phase, otherwise pressure is too big, and it is defeated to cannot achieve concentrated phase Ash, while to accelerate to diffuse speed, can also synchronize the diffusion valve 16 for opening 1 top of deduster, wait for that pressure reaches the first setting pressure After force value, diffusion valve 16 is closed, during which, a small amount of ash content in ash bucket 11 can also drain into defeated grey air supply pipe 13 in deduster 1 Interior purified gas effect is lower and is inhaled into defeated grey air supply pipe 13, and enters defeated ash under purified gas effect and be responsible for 15, that is, opens The defeated grey pattern (i.e. the defeated ash of dilute phase) of injection, wherein pressure in deduster 1 by the pressure detecting meter P on deduster 1 into Row detection.

Further, H is counted by the upper limit ash position on the ash bucket 11 and lower limit ash position is counted L and detected in the ash bucket 11 Grey position executes step a1 in the upper limit ash position of the deduster 1 when meter H alarms, in the lower limit ash position of the deduster 1 meter L reports When alert, the ash output valve 122 on the ash discharge conduit 12, the fluidisation steam supply valve 27 on the fluidisation air supply pipe 26 and institute are closed successively The defeated grey steam supply valve 14 on defeated grey air supply pipe 13 is stated, ensures that ash content conveys completely, avoids closing too early because of defeated grey steam supply valve 14, and Cause ash-deposition in defeated ash supervisor 15.

Further, further include step d after the step c, when the pressure reduction in the deduster 1 to second is set When level pressure force value, the half purified gas manifold valve 61 and the purified gas manifold valve 81 are opened, until the pressure in the deduster 1 Power rises to first setup pressure value, and the pressure to meet the defeated ash of concentrated phase is adjusted, wherein the first setup pressure value and second Setup pressure value is measured by pressure detecting meter P.

Further, in the step b, the pressure of the purified gas of the float valve 23 of the Fluidizer 2 in the Fluidizer 2 Moved up in opened condition under power, the spring 235 of the float valve 23 is compressed, the bonnet 232 of the float valve 23 with it is described Trepanning 212 on the packing plate 211 of the ontology 21 of Fluidizer 2 is separated, and the purified gas in the Fluidizer 2 passes through the float valve 23 enter the ash bucket 11, make the ash content in ash bucket 11 under purified gas effect, keep fluidized suspension state, are the defeated ash wound of concentrated phase Make condition.

Further, in the step b, the purified gas in the Fluidizer 2 fluidizes the air inlet of 232 ＇ of pipe by warp-wise After 2321 ＇ of slot enters in 232 ＇ of warp-wise fluidisation pipe, a part of purified gas fluidizes the venthole of 232 ＇ of pipe by the warp-wise 2322 ＇ enter the ash bucket 11, and 2331 ＇ of air admission hole that another part purified gas fluidizes 233 ＇ of endless tube by broadwise enters the latitude Into fluidisation 233 ＇ of endless tube, and 2332 ＇ of gas vent through 233 ＇ of broadwise fluidisation endless tube enters the ash bucket 11, with by each Warp-wise fluidizes the staggeredly spider reticulation that 232 ＇ of pipe and each broadwise fluidisation endless tube 233 ＇ are presented, realize by it is equally distributed it is multiple go out 2322 ＇ of stomata and 2332 ＇ of gas vent is discharged into purified gas to each region of ash bucket 11 and carries out fluidisation ash content.

In step c, circulates in defeated ash air supply pipe 13 and carry out the purified gas of Self-duster 1, ash output valve 122 is in open shape State after the ash fluidization in ash bucket 11, forms low-voltage space, the ash content of fluidized suspension state exists in front of the entrance of ash discharge conduit 12 Enter ash discharge conduit 12 under itself positive pressure and enter defeated grey air supply pipe 13, the purified gas in defeated ash air supply pipe 13 is as concentrated phase The embolism column pressure source of defeated ash and push fluidisation state ash content complete conveying.

The present invention with the self-produced purified gas of deduster fluidize method and system (the i.e. defeated grey method of blast furnace ash fluidisation of defeated ash And system), the grey position in the ash bucket 11 of H and lower limit ash position meter L detection dedusters 1 is counted by upper limit ash position, passes through 3 He of nitrogen big gun The block clearing gas (high pressure nitrogen) that torrent injector 4 sprays breaks up the ash content in 1 ash bucket 11 of deduster, is purified with deduster 1 Enter the purified gas of purified gas manifold 7 afterwards as fluidizing gas, so that it is entered in Fluidizer through fluidizing air supply pipe 26, pass through fluidisation Device 2 is ejected to ash bucket 11, and the ash content in ash bucket 11 is made to keep fluidized suspension state, and can enter defeated ash through ash discharge conduit 12 and supply Pipe 13, while entering defeated grey air supply pipe 13 using the purified gas in deduster 1 as defeated ash gas, defeated grey air supply pipe 13 will be entered The interior ash delivery in fluidized suspension state is to defeated ash supervisor 15, and to import in ash cellar 17, the present invention realizes fluidization technique With the coupling of defeated gray technology, the defeated ash of concentrated phase is realized, ensure that defeated ash is more smooth, can effectively solve continuity ash content blockage problem, keep away Exempt from ash-deposition blocking, saves defeated grey gas consumption, reduce operating cost, reliability is high.In addition, that present invention can apply to batch cans is equal It presses the coupled system (i.e. I-CHEN) of coal-gas recovering and blast furnace gas dry dust removal and forms batch can and press coal-gas recovering and blast furnace Defeated grey coupled system (the i.e. Fluidized conveying Coupling system in of fluidisation of coal gas dry dust removal Hybrid of Equalizing gas recovery and Networks of blast furnace gas Dedusters, abbreviation F-CHEN), such as furnace top even pressure coal-gas recovering device can be applied the present invention to, and utilize blast-furnace gas dry The purified purified gas of formula dust-extraction unit makes to realize the defeated ash of fluidisation at its cinder-discharging port as fluidizing gas and defeated ash gas, or Applied to blast furnace gas dry dust removal apparatus, for the defeated ash of big ash cellar.

The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, has in any technical field Usual skill, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make it is a little The equivalent embodiment of equivalent variations is changed or is modified to, as long as being the content without departing from technical solution of the present invention, according to the present invention Technical spirit to any simple modification, equivalent change and modification made by above example, still fall within the technology of the present invention side In the range of case.

Claims

1. a kind of system for carrying out fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that described self-produced net with deduster The system that coal gas carries out fluidizing defeated ash includes：

Multiple dedusters are equipped with half purified gas manifold and purified gas manifold, the deduster side wall between multiple dedusters The air inlet of lower end is connected by half clean coal gas branch pipe with the half purified gas manifold, the gas outlet of the deduster sidewall upper It is connected with the purified gas manifold by clean coal gas branch pipe, the upper end of the deduster is connected with the entrance of defeated grey air supply pipe, institute The lower end for stating deduster is equipped with ash bucket, and the side wall of the ash bucket wears ash discharge conduit, and the outlet of the ash discharge conduit is supplied with defeated ash Tracheae is connected；

Fluidizer is fixedly arranged on the lower end of the ash bucket, and the Fluidizer is located at the lower section of the entrance of the ash discharge conduit, described The lower inlet of Fluidizer is connected by fluidizing air supply pipe with the purified gas manifold, and the upper end outlet of the Fluidizer can be with institute State ash bucket connection；

Nitrogen big gun comprising nitrogen gas tank and multiple injection pipes, multiple injection pipes it is circumferentially spaced be arranged in the fluidisation Device, the entrance of the injection pipe are connected with the nitrogen gas tank, and the outlet of the injection pipe is pierced by the Fluidizer and torrent are arranged Injector.

2. according to claim 1 carry out the system for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that described The entrance of ash discharge conduit is equipped with ash-collecting cover, and the outlet of the ash discharge conduit and the defeated grey air supply pipe are inclined with scheduled angle It is connected, the outlet of the defeated grey air supply pipe is connected by defeated ash supervisor with ash cellar, is entered from the ash bucket through the ash discharge conduit The ash content of the defeated ash air supply pipe can be under the purified gas effect in the defeated grey air supply pipe through described in the defeated ash supervisor remittance Ash cellar.

3. according to claim 1 carry out the system for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that described Fluidizer includes ontology and splitter column, and the sealing that the splitter column can be dismantled is set on the lower section of the ontology, the fluidisation gas supply The outlet end of pipe is stretched into the splitter column, and the purified gas entered in the splitter column through the fluidisation air supply pipe can be by described Ontology enters the ash bucket.

4. according to claim 3 carry out the system for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that described Be equipped with upper flange at the lower ending opening of ontology, be equipped with lower flange at the upper end opening of the splitter column, the ontology with described point Stream tower is connected by the upper flange with lower flange sealing.

5. according to claim 3 carry out the system for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that described What the outlet end of fluidisation air supply pipe radially outward dissipated is equipped with multiple branches fluidisation pipe, the outlet end of multiple branch's fluidisation pipes Circumferentially it is arranged at equal intervals, the outlet end of the fluidisation air supply pipe and the outlet end of branch fluidisation pipe are equipped with fluidisation spray Head.

6. according to claim 3 carry out the system for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that described The lid of the upper end sealing of the ontology of Fluidizer sets fluidized disk, and the fluidized disk includes disk body and multiple warp-wises fluidisation pipe, the disk Body is equipped with multiple warp-wise slots, and each warp-wise slot interior sealing is embedded a warp-wise fluidisation pipe, protrudes the disk body The lower wall of the warp-wise fluidisation pipe of lower surface is equipped with multiple air inlet ducts, protrudes the warp-wise fluidisation of the disk body upper surface The upper side wall interval of pipe is equipped with multiple ventholes.

7. according to claim 6 carry out the system for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that described Fixed multiple broadwises fluidize endless tube on fluidized disk, and multiple broadwise fluidisation endless tubes are with one heart and spaced radial is arranged, the broadwise Fluidisation endless tube sealing is arranged in each warp-wise fluidisation pipe, is located at the broadwise fluidisation endless tube in warp-wise fluidisation pipe Lower wall is equipped with air admission hole, and it is multiple to be located at being equipped with for the upper side wall interval of the broadwise fluidisation endless tube outside warp-wise fluidisation pipe Gas vent.

8. according to claim 3 carry out the system for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that described The upper end of the ontology of Fluidizer is equipped with packing plate, and the packing plate is equipped with multiple trepannings, what the trepanning interior energy moved up and down Wear float valve.

9. according to claim 8 carry out the system for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that described Float valve includes bonnet and valve seat, is arranged valve rod between the valve seat and the bonnet, sheathed spring on the valve rod, the valve Seat, the spring are respectively positioned in the ontology, and the bonnet is located at that described external and what can be sealed is covered on the ontology Tapping.

10. according to claim 9 carry out the system for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that institute The lower end of bonnet is stated circumferentially arranged with sealing inclined-plane, the trepanning of the packing plate, which has, tilts peripheral wall, the sealing inclined of the bonnet Face can be bonded with what the inclination peripheral wall of the trepanning sealed.

11. according to claim 10 carry out the system for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that institute State in the sealing inclined-plane of bonnet it is circumferentially spaced be equipped with it is multiple crack, the triangle at an acute angle that cracks, in the close of the bonnet In the state that envelope inclined-plane is not bonded completely with the inclination peripheral wall of the trepanning, described physical efficiency is cracked and the ash bucket by described It is connected.

12. according to claim 1 carry out the system for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that institute It includes outer tube and inner tube to state torrent injector, and what said inner tube can move up and down is arranged in the outer tube, the outer tube wall Upper end interval projection the first upper inner ring plate and the second upper inner ring plate, the lower end projection slower inner ring plate of the outer tube wall, institute The middle part for stating inner tube is equipped with and inside contracts aditus laryngis, and said inner tube inside contracts outside the upper end of aditus laryngis outer ring plate in projection, said inner tube it is interior The lower end evagination of contracting aditus laryngis sets outer ring plate, and the upper outer ring plate is located at the first upper inner ring plate and the second upper inner ring plate Between, and there is gap between the upper outer ring plate and the inner wall of the outer tube, the lower outer ring plate is located at the slower inner ring plate Lower section, and between the lower outer ring plate and the inner wall of the outer tube have gap.

13. according to claim 12 carry out the system for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that In the state that the pressure of nitrogen in the injection pipe reaches calibration value, being connected to for the lower outer ring plate sealing of said inner tube is described The slower inner ring plate of outer tube, the first upper inner ring plate for being connected to the outer tube of the upper outer ring plate sealing of said inner tube.

14. according to claim 1 carry out the system for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that institute It states half clean coal gas branch pipe and is equipped with half purified gas manifold valve, the clean coal gas branch pipe is equipped with purified gas manifold valve, the ash bucket Upper end counted equipped with upper limit ash position, the lower end of the ash bucket is equipped with lower limit ash position and counts, and lower limit ash position meter is positioned at the ash discharge The top of the entrance of conduit, the ash discharge conduit are equipped with ash output valve, and the defeated grey air supply pipe is equipped with defeated grey steam supply valve, described It fluidizes air supply pipe and is equipped with fluidisation steam supply valve, the half purified gas manifold valve, the purified gas manifold valve, upper limit ash position Meter, lower limit ash position meter, the ash output valve, the defeated grey steam supply valve and the fluidisation steam supply valve with industry control mechatronics.

15. a kind of method for carrying out fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that described self-produced net with deduster The method that coal gas carries out fluidizing defeated ash, which is used, to be carried out as described in any one of claim 1 to 14 with the self-produced purified gas of deduster The system for fluidizing defeated ash, the method for carrying out fluidizing defeated ash with the self-produced purified gas of deduster include the following steps：

Step a starts nitrogen big gun, so that the nitrogen in nitrogen gas tank is entered torrent injector through injection pipe, sprayed by the torrent Ash content in the ash bucket of deduster is broken up and forms a cavity by device；

Purified gas in step b, purified gas manifold enters through fluidizing air supply pipe in Fluidizer, the clean coal into the Fluidizer Gas enters the ash bucket and fills the cavity, and it is in fluidized suspension state to make the ash content at the empty edge；

Step c enters defeated grey air supply pipe in the ash content of fluidized suspension state through ash discharge conduit, and enters in Self-duster described defeated Under purified gas effect in grey air supply pipe ash cellar is imported through defeated ash supervisor.

16. according to claim 15 carry out the method for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that Further include step a1 before the step a, closes in half purified gas manifold valve and clean coal gas branch pipe on half clean coal gas branch pipe Purified gas manifold valve opens defeated grey steam supply valve and the supravasal ash output valve of the ash discharge on the defeated grey air supply pipe, to described Purified gas in deduster is diffused, up to the pressure reduction in the deduster to the first setup pressure value.

17. according to claim 16 carry out the method for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that logical The grey position in the meter of the upper limit ash position on the ash bucket and the lower limit ash position meter detection ash bucket is crossed, in the upper limit ash of the deduster When the meter alarm of position, step a1 is executed, when alarm is counted in the lower limit ash position of the deduster, it is supravasal to close the ash discharge successively Ash output valve, the fluidisation steam supply valve on the fluidisation air supply pipe and the defeated grey steam supply valve on the defeated grey air supply pipe.

18. according to claim 16 carry out the method for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that Further include step d after the step c, when the pressure reduction in the deduster to the second setup pressure value, described in opening Half purified gas manifold valve and the purified gas manifold valve, until the pressure in the deduster rises to the first setting pressure Value.

19. according to claim 15 carry out the method for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that In the step b, is moved up under the pressure of the purified gas of the float valve of the Fluidizer in the Fluidizer and be in open shape The spring of state, the float valve is compressed, the bonnet of the float valve and the trepanning phase point on the packing plate of the ontology of the Fluidizer From the purified gas in the Fluidizer enters the ash bucket by the float valve.

20. according to claim 15 carry out the method for fluidizing defeated ash with the self-produced purified gas of deduster, which is characterized in that In the step b, after the purified gas in the Fluidizer is entered by the air inlet duct of warp-wise fluidisation pipe in warp-wise fluidisation pipe, The venthole that a part of purified gas fluidizes pipe by the warp-wise enters the ash bucket, and another part purified gas is fluidized by broadwise The air admission hole of endless tube enters in broadwise fluidisation endless tube, and the gas vent through broadwise fluidisation endless tube enters the ash bucket.