CN108820604A

CN108820604A - Spider-web type anti-blocking fluidization ash conveying method and system for dust remover

Info

Publication number: CN108820604A
Application number: CN201810390993.6A
Authority: CN
Inventors: 陈琛; 蒋彪; 王飞; 訚浩; 董艳苹
Original assignee: Capital Engineering & Research Inc Ltd
Current assignee: Capital Engineering & Research Inc Ltd
Priority date: 2018-04-27
Filing date: 2018-04-27
Publication date: 2018-11-16
Anticipated expiration: 2038-04-27
Also published as: CN108820604B

Abstract

The invention provides a spider-web type anti-blocking fluidization ash conveying method and system for a dust remover, which comprises the following steps: the lower end of the dust remover is provided with an ash hopper, the side wall of the ash hopper is penetrated with an ash outlet guide pipe, and the outlet of the ash outlet guide pipe is connected with an ash conveying and supplying pipe; the fluidization device is fixedly arranged at the lower end of the ash bucket and positioned below the inlet of the ash discharge guide pipe, the inlet at the lower end of the fluidization device is connected with the fluidization air supply pipe, the upper end of the fluidization device is provided with a fluidization disc, and the fluidization device is communicated with the ash bucket through the fluidization disc. The invention can realize dense-phase pneumatic ash conveying by combining fluidization and ash conveying, solves the problem of continuous blockage of ash, and has reliable ash conveying and low cost.

Description

The defeated grey method and system of the anti-blocking fluidisation of spider net type for deduster

Technical field

The present invention relates to the defeated grey field of engineering technology of blast furnace, the anti-blocking fluidisation of specifically a kind of spider net type for deduster is defeated Grey method and system.

Background technique

Blast furnace gas bag-type dust removing system is the dust pelletizing system for being listed in blast furnace system, is used to handle the height of furnace roof extraction Half purified gas of furnace, to reach the dustiness requirement of subsequent technique needs.Blast furnace gas bag-type dust removing system includes two and nonstandard sets It is standby, i.e. blast furnace gas cloth bag dedusting device (Bag Filter Chamber, abbreviation BFC are pressure vessel) and big ash cellar (Big Dust Bin, abbreviation BDB are vessels not under pressure), blast furnace gas cloth bag dedusting device (BFC) therein is a kind of high manufacture mark Quasi-, the stronger pressure vessel of versatility, and existing blast furnace gas cloth bag dedusting device (BFC) can quilts after facing blast furnace reformation Directly scrap iron smelting is sent in dismantling, and after facing BF expansion, the blast furnace gas cloth bag dedusting device (BFC) of small dimension then also faces It eliminates, results in waste of resources, and big ash cellar (BDB) is a kind of in shape close to the storage ash of blast furnace gas cloth bag dedusting device (BFC) Equipment.

It is the auxiliary system of the feeding batch can subsystem of blast furnace system that the furnace roof batch can of blast furnace, which presses gas recovery system, System is used to filter the coal gas in batch can, that is, collects pressure coal gas when charging to batch can, be then dusted recycling.In the past Furnace roof batch can press gas recovery system to use cyclone dust collectors and gravitational precipitator as cleaner, present furnace roof batch can The bag filter of pressure gas recovery system use " class BFC " form, such as builds again, and the construction period is long, at high cost.

Pneumatic conveying can be divided into dilute phase pneumatic conveying and thick and thin phase burner according to the ratio of solid particle and gas.Dilute phase The characteristics of pneumatic conveying is that material is evenly distributed in the air-flow of pipeline, and concentration is low, and speed is fast, is dilute phase gas as shown in Figure 1 The schematic diagram of power conveying, but it needs a large amount of carrier gas, operating cost is higher, and its flow velocity is fast, washes away mill to inner wall of the pipe Damage is big, needs to configure ceramic tube or wear-resistant pipe, construction investment is costly.The characteristics of thick and thin phase burner is material full of one section of pipe Road forms hitching post shape, and flowing velocity is low, small to pipe wear, is conveyed by the pressure difference of hitching post two sides, as shown in Figure 2 For the schematic diagram of thick and thin phase burner, the drawbacks of which obviate dilute phase pneumatic conveyings.

In current blast furnace engineering construction project, it and is using high pressure mostly that deduster, which is directly to unload ash by outlet, Nitrogen, which directly purges, carries out defeated ash, but its generation is the defeated grey phenomenon of dilute phase, needs a large amount of purge gas, and operating cost is high, And under stopping state, defeated ash cannot achieve, to avoid blocking, will use vibrator block clearing, but (i.e. stifled for continuity blocking There are blocking without stop, heap density is big for the middle section of plug), vibrator can generate the phenomenon for the more beating the more solid, instead can Cause more serious blocking.

Summary of the invention

A purpose of the invention is to provide a kind of anti-blocking fluidisation ash-transmission system of the spider net type for deduster, can pass through stream Change the mode combined with defeated ash, realize concentrated phase Pneumatic ash conveying, solves the continuity blocking of ash content, defeated ash is reliable, at low cost.

It is a further object of the present invention to provide a kind of defeated grey methods of the anti-blocking fluidisation of spider net type for deduster, can pass through The mode combined with defeated ash is fluidized, realizes concentrated phase Pneumatic ash conveying, solves the continuity blocking of ash content, defeated ash is reliable, at low cost.

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

The present invention provides a kind of anti-blocking fluidisation ash-transmission system of the spider net type for deduster comprising：Deduster, lower end Equipped with ash bucket, the side wall of the ash bucket wears ash discharge conduit, and the outlet of the ash discharge conduit is connected with defeated grey air supply pipe；Fluidisation Device 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, the Fluidizer Lower inlet is connected with fluidisation air supply pipe, and the upper end of the Fluidizer is equipped with fluidized disk, and the Fluidizer passes through the fluidized disk It is connected to the ash bucket.

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.

In a preferred embodiment, the outlet of the defeated grey air supply pipe is connected by defeated ash supervisor with ash cellar, described in The ash content that ash bucket enters the defeated grey air supply pipe through the ash discharge conduit can be acted in the defeated ash gas in the defeated grey air supply pipe It is lower to import the ash cellar 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, the lid of the upper end sealing of the ontology sets the fluidized disk, the outlet end of the fluidisation air supply pipe It protrudes into the splitter column, the fluidizing gas entered in the splitter column through the fluidisation air supply pipe can enter through the fluidized disk The ash bucket.

In a preferred embodiment, the fluidized disk includes disk body and multiple meridional flow pipes, and the disk body is equipped with It is multiple through to slot, it is each it is described be embedded the meridional flow pipe through what is sealed into slot, protrude the disk body lower surface The lower wall of the meridional flow pipe is equipped with multiple air inlet ducts, protrudes the upside of the meridional flow pipe of the disk body upper surface Wall interval 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 meridional flow pipe, is located at described The lower wall of broadwise fluidisation endless tube in meridional flow pipe is equipped with air inlet, the latitude outside the meridional flow pipe Multiple gas vents are equipped with to the upper side wall interval of fluidisation endless tube.

In a preferred embodiment, the inside nominal diameter of the meridional flow pipe is greater than the nominal of broadwise fluidisation endless tube Latus rectum, the inside nominal diameter of the meridional flow pipe is greater than the disk body through the width to slot.

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 branch's fluidisation pipes is circumferentially arranged at equal intervals, the outlet end of the fluidisation air supply pipe and each institute The outlet end for stating branch's fluidisation pipe is equipped with fluidisation spray head.

In a preferred embodiment, the anti-blocking fluidisation ash-transmission system of the spider net type for deduster further includes nitrogen Big gun, the nitrogen big gun include nitrogen gas tank and multiple injection pipes, multiple injection pipes it is circumferentially spaced be arranged in the fluidisation The entrance of device, the injection pipe is connected with nitrogen gas tank, and the outlet of the injection pipe is pierced by the Fluidizer and torrent injection is arranged Device.

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 Outer ring plate in outer projection is held, the lower end evagination for inside contracting aditus laryngis of 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 is located at the lower section of the slower inner ring plate, and has 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, what the side wall of the deduster was spaced from top to bottom is equipped with upper limit ash position meter and lower limit Grey position meter, lower limit ash position meter are located at the top of the entrance of the ash discharge conduit, and the ash discharge conduit is equipped with ash output valve, institute It states defeated grey air supply pipe and is equipped with defeated grey steam supply valve, the fluidisation air supply pipe is equipped with fluidisation steam supply valve, upper limit ash position meter, institute State 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.

In a preferred embodiment, the side wall of the deduster is equipped with multiple into grey conduit, the upper end of the ash bucket and Middle part is equipped with reinforcing rib.

In a preferred embodiment, the lower end of the side wall of the deduster is equipped with air inlet, the side wall of the deduster Upper end be equipped with gas outlet, correspond in the deduster at the air inlet equipped with helical form deflector, in the deflector Portion extends axially upward setting guide shell, and the guide shell passes through the packing plate in the deduster, the top of the packing plate Interval is equipped with multiple baffle plates.

In a preferred embodiment, the defeated ash gas in the defeated grey air supply pipe is purified gas, the fluidisation air supply pipe Interior fluidizing gas is purified gas.

The present invention also provides a kind of defeated grey methods of the anti-blocking fluidisation of spider net type for deduster, wherein described to be used for dedusting The defeated grey method of the anti-blocking fluidisation of the spider net type of device is using the anti-blocking fluidisation ash-transmission system of spider net type for being used for deduster as described above, institute It states and includes the following steps for the defeated grey method of the anti-blocking fluidisation of spider net type of deduster：Step a opens the fluidisation on fluidisation air supply pipe Steam supply valve, fluidizing gas enter in Fluidizer and enter ash bucket through fluidized disk, make the ash content in ash bucket in fluidized suspension state；Step Rapid b enters defeated grey air supply pipe, and the defeated grey gas in the defeated grey air supply pipe through ash discharge conduit in the ash content of fluidized suspension state Ash cellar is imported through defeated ash supervisor under body effect.

In a preferred embodiment, in the step a, the fluidizing gas in the Fluidizer passes through meridional flow pipe Air inlet duct enter the meridional flow pipe in after, a part of fluidizing gas enters institute by the venthole of the meridional flow pipe Ash bucket is stated, another part fluidizing gas enters the broadwise by the air inlet that broadwise fluidizes endless tube and fluidizes in endless tube, and through institute The gas vent for stating broadwise fluidisation endless tube enters the ash bucket.

In a preferred embodiment, further include step a1 before the step a, start nitrogen big gun, make in nitrogen gas tank Nitrogen enter torrent injector through injection pipe, the ash content in the ash bucket of deduster is broken up by the torrent injector.

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

In a preferred embodiment, in the step a1, when the pressure of the nitrogen entered in the injection pipe reaches When calibration value, the inner tube of the torrent injector moves up under the pressure effect of nitrogen, the inner tube of the torrent injector Lower outer ring plate sealing the outer tube for being connected to the torrent injector slower inner ring plate, the inner tube of the torrent injector it is upper First upper inner ring plate of the outer tube for being connected to the torrent injector of outer ring plate sealing, described in the nitrogen warp in the injection pipe Inside contracting after aditus laryngis accelerates for the inner tube of torrent injector sprays into the ash bucket.

The present invention is used for spider net type anti-blocking the characteristics of fluidizing defeated grey method and system of deduster and advantage is：

1, the present invention will be in dust collector ash hopper by the block clearing gas (high pressure nitrogen) that nitrogen big gun and torrent injector spray Ash content break up, while by Fluidizer spray fluidizing gas make the ash content in ash bucket keep fluidized suspension state and can through out Grey conduit enters defeated grey air supply pipe, and will be defeated into the ash content in fluidized suspension state in defeated grey air supply pipe by defeated ash gas It send to defeated ash supervisor, to import in ash cellar, the present invention realizes the coupling of fluidization technique and defeated gray technology, realizes the defeated ash of concentrated phase, protects It is more smooth to demonstrate,prove defeated ash, can effectively solve a wide range of continuity ash content blockage problem, ash-deposition is avoided to block, saves defeated ash gas Amount reduces operating cost, high reliablity.

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 on device ontology, enables fluidizing gas to enter in ash bucket by fluidized disk, promotes ash content in fluidizing gas Lower suspension fluidization is acted on, while by each meridional flow pipe and each broadwise fluidisation endless tube on fluidized disk, keeping fluidizing gas uniform By fluidized disk, structure is simple, at low cost.

3, the present invention passes through the cooperation of the inner tube of torrent injector and each ring flat-plate of outer tube, 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, to remove blocking, good blocking cleaning effect using the energy of high pressure nitrogen.

4, deduster of the invention can be transformed according to purification gas and the grey needs of storage by blast furnace gas cloth bag dedusting device At targetedly to press deduster applied to ash cellar or batch can, the solution bag filter of blast furnace gases on the verge of being replaced because of transformation is removed Dirt device reduces repeated construction cost, saves resource.

Detailed description of the invention

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

Fig. 1 is the schematic diagram of dilute phase pneumatic conveying in the prior art.

Fig. 2 is the schematic diagram of thick and thin phase burner in the prior art.

Fig. 3 is the structural schematic diagram of blast furnace gas cloth bag dedusting device in the prior art；

Fig. 4 is a structural representation of the present invention for the first embodiment of the anti-blocking fluidisation ash-transmission system of spider net type of deduster Figure；

Fig. 5 is that another structure of the present invention for the first embodiment of the anti-blocking fluidisation ash-transmission system of spider net type of deduster is shown It is intended to；

Fig. 6 is a structural representation of the present invention for the second embodiment of the anti-blocking fluidisation ash-transmission system of spider net type of deduster Figure；

Fig. 7 is that another structure of the present invention for the second embodiment of the anti-blocking fluidisation ash-transmission system of spider net type of deduster is shown It is intended to；

Fig. 8 is a structural representation of the present invention for the 3rd embodiment of the anti-blocking fluidisation ash-transmission system of spider net type of deduster Figure；

Fig. 9 is that another structure of the present invention for the 3rd embodiment of the anti-blocking fluidisation ash-transmission system of spider net type of deduster is shown It is intended to；

Figure 10 is front view structure signal of the present invention for the Fluidizer of the anti-blocking fluidisation ash-transmission system of spider net type of deduster Figure；

Figure 11 is structural schematic diagram of the A-A in Figure 10 to cutting line；

Figure 12 is the structural schematic diagram of the B-B direction cutting line in Figure 10；

Figure 13 is structural schematic diagram of the C-C in Figure 11 to cutting line；

Figure 14 is front view structure signal of the present invention for the nitrogen big gun of the anti-blocking fluidisation ash-transmission system of spider net type of deduster Figure；

Figure 15 is that a structure of the present invention for the torrent injector of the anti-blocking fluidisation ash-transmission system of spider net type of deduster is shown It is intended to.

Figure 16 is another structure of the present invention for the torrent injector of the anti-blocking fluidisation ash-transmission system of spider net type of deduster Schematic diagram.

Drawing reference numeral explanation：

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；131, Defeated ash steam supply valve；14, defeated ash supervisor；15, into grey conduit；16, reinforcing rib；17, deflector；18, plate is insulated；19, baffle plate；

2, Fluidizer；21, ontology；22, splitter column；23, fluidized disk；231, disk body；232, meridional flow pipe；2321, into Air drain；2322, venthole；233, broadwise fluidizes endless tube；2331, air inlet；2332, gas vent；24, upper flange；25, laxative remedy It is blue；26, air supply pipe is fluidized；27, steam supply valve is fluidized；28, branch's fluidisation pipe；29, spray head 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；

α, upper angle；β, lower angle；H1, upper limit ash position meter；H2, high-order grey position meter；L1, lower limit ash position meter；L2, low level ash Position meter；P1, pressure detecting meter；P2, pressure detecting meter；P3, pressure detecting meter；P4, pressure detecting meter.

The prior art

9, blast furnace gas cloth bag dedusting device；91, import；92, it exports；93, lattice board；94, filter bag.

Specific embodiment

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 description, 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 upper and lower, left and right being referred to herein are with this hair Subject to the directions such as the upper and lower, left and right in Fig. 4 shown in bright, illustrate in this together.

Embodiment one

As shown in Fig. 4 to Figure 16, the present invention provides a kind of anti-blocking fluidisation ash-transmission system of the spider net type for deduster, packet It includes：Deduster 1, lower end are equipped with ash bucket 11, and the side wall of the ash bucket 11 wears ash discharge conduit 12, and the ash discharge conduit 12 goes out Mouth is connected with defeated grey air supply pipe 13；Fluidizer 2, is fixedly arranged on the lower end of the ash bucket 11, and the Fluidizer 2 is located at the ash discharge The lower inlet of the lower section of the entrance of conduit 12, the Fluidizer 2 is connected with fluidisation air supply pipe 26, the upper end of the Fluidizer 2 Equipped with fluidized disk 23, the Fluidizer 2 is connected to by the fluidized disk 23 with the ash bucket 11.

Specifically, deduster 1 is substantially cylindrical in shape, and it is interior that there is filter core, for filtering the ash in raw coke oven gas or half purified gas Point, it can be used directly as big ash storage ash, the deduster that also can be used as each equipment of blast furnace uses, the ash bucket of 1 lower end of deduster 11 be substantially in inverted cone-shaped, and for temporarily storing ash content, the ash discharge conduit 12 of 11 side wall of ash bucket is used for the ash content in ash bucket 11 It is expelled in defeated grey air supply pipe 13, by the defeated ash gas in defeated grey air supply pipe 13, makes the ash content in defeated grey air supply pipe 13 with dense Mutually defeated ash mode is exported；For Fluidizer 2 substantially in Pagoda-shaped, fluidisation 26 self-fluidized type device of air supply pipe, 2 lower inlet protrudes into fluidisation In device 2, to supply fluidizing gas into Fluidizer 2, and it can be expelled in ash bucket 11 by fluidized disk 23, to realize to ash bucket 11 The fluidisation of interior ash content.

Further, as shown in figure 4, 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, 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, and ash discharge conduit 12 is bottom-up to be obliquely installed, i.e., Ash discharge conduit 12 is located at one end in ash bucket 11 lower than one end that ash discharge conduit 12 is connected with defeated grey air supply pipe 13, makes ash discharge conduit 12 and the horizontal segment of defeated grey air supply pipe 13 are in angle, and the setting of the angle is conducive to the conveying of ash content.

Further, as shown in figure 4, the outlet of the defeated grey air supply pipe 13 is connected by defeated ash supervisor 14 with ash cellar, 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 the defeated grey air supply pipe 13 The effect of defeated ash gas under through the defeated ash supervisor 14 import the ash cellars, realize the output of ash content.Preferably, the defeated ash supplies Defeated ash gas in tracheae 13 is purified gas, such as directly passes through the purified gas after 1 purification of deduster as defeated ash gas, Certainly nitrogen can also be used, such as certainly, other gases can also be used by the nitrogen that nitrogen gas tank provides as defeated ash gas As defeated ash gas, herein with no restrictions.

Further, as shown in Fig. 4 to Figure 13, the Fluidizer 2 includes ontology 21 and splitter column 22, the splitter column 22 The sealing that can be dismantled is set to the lower section of the ontology 21, and the lid of the upper end sealing of the ontology 21 sets the fluidized disk 23, described The outlet end of fluidisation air supply pipe 26 is protruded into the splitter column 22, is entered in the splitter column 22 through the fluidisation air supply pipe 26 Fluidizing gas can enter the ash bucket 11 through the fluidized disk 23, specifically, the ontology 21 of Fluidizer 2 is substantially cylindrical in shape, shunt Tower 22 is substantially spherical in semiellipse, and the upper end opening of splitter column 22 is opposite with the lower ending opening of ontology 21 and what can be sealed connects, The outlet end of the generally round tabular of fluidized disk 23, the upper end for being covered on ontology 21 of sealing, fluidisation air supply pipe 26 is protruded into In the splitter column 22, fluidizing gas is enable first to come together in splitter column 22, then ash bucket 11 is uniformly entered by fluidized disk 23, Preferably, the fluidizing gas in the fluidisation air supply pipe 26 is purified gas, such as directly by entering after 1 purification of deduster The purified gas of the endotracheal high pressure of high pressure clean coal, certainly, fluidizing gas can also be other gases, and this is not restricted.

Further, as illustrated in figures 11 and 13, the fluidized disk 23 includes disk body 231 and multiple meridional flow pipes 232, The disk body 231 be equipped with it is multiple through to slot, it is each it is described be embedded the meridional flow pipe 232 through what is sealed into slot, The lower wall for protruding the meridional flow pipe 232 of 231 lower surface of disk body is equipped with multiple air inlet ducts 2321, protrudes the disk The upper side wall interval of the meridional flow pipe 232 of 231 upper surface of body is equipped with multiple ventholes 2322, specifically, fluidized disk 23 disk body 231 is with separating Fluidizer 2 and ash bucket 11, rounded tabular, on disk body 231 it is multiple through to slot in disk body 231 center intersection, and it is multiple through, by 231 even partition of disk body, it being made to be divided into multiple fan-shaped regions, meridional flow pipe to slot 232 is cylindrical, and along the radial direction of disk body 231 be embedded at disk body 231 through into slot, the meridional flow pipe 232 after being embedded is convex For the upper and lower surfaces of disk body 231, and in the arc surfaced of protrusion 231 lower surface of disk body (namely being located in Fluidizer 2) Lower wall the air inlet ducts 2321 of multiple bar shapeds is set, guarantee sufficient air inlet, protrusion 231 upper surface of disk body (namely is located at ash bucket In 11) the upper side wall of arc surfaced multiple ventholes 2322 are set, multiple ventholes 2322 can be along the axial direction of meridional flow pipe 232 Be uniformly arranged at equal intervals, guarantee the uniform outlet in each region to ash bucket 11, preferably, meridional flow pipe 232 can be embedded at through Sealing welding after into slot is avoided from installation gap gas leakage, and each meridional flow pipe 232 is mutually interspersed in the center of disk body 231, and Encapsulation process is done in junction, avoids gas leakage, it is preferred that four or six are arranged on disk body 231 through to slot, it is corresponding, through to Fluidizing pipe 232 is four or six.

Further, as illustrated in figures 11 and 13, fixed multiple broadwises fluidize endless tube 233 on the fluidized disk 23, multiple The broadwise fluidisation endless tube 233 is with one heart and spaced radial is arranged, and what the broadwise fluidisation endless tube 233 sealed is arranged in each warp To fluidisation pipe 232, the lower wall of the broadwise fluidisation endless tube 233 in the meridional flow pipe 232 is equipped with air inlet 2331, the upper side wall interval of the broadwise fluidisation endless tube 233 outside the meridional flow pipe 232 is equipped with multiple gas vents 2332, specifically, the radial section of broadwise fluidisation endless tube 233 is generally round, each broadwise fluidisation endless tube 233 is along disk body 231 Surface is rounded or polygon setting, each broadwise fluidisation endless tube 233 is fixedly arranged on disk body 231 along the radial direction of disk body 231 at equal intervals Upper surface, and each broadwise fluidisation endless tube 233 is arranged in each meridional flow pipe 232, and in being arranged in meridional flow pipe 232 Air inlet is realized by setting air inlet 2331, and in the part for being pierced by each meridional flow pipe 232, fluidizes endless tube along broadwise in part The equally spaced multiple gas vents 2332 of setting of 233 axial direction, wherein each meridional flow pipe 232 and each broadwise fluidisation endless tube 233 are handed over Mistake is in spider reticulation, to be discharged into stream to each region of ash bucket 11 by equally distributed multiple ventholes 2322 and gas vent 2332 Change gas, guarantee the uniform outlet in each region to ash bucket 11, so that the bottom of ash bucket 11 is formed air cushion layer, to balance the weight of ash content Power enhances ash content mobility, greatly reinforces the fluidised effect of ash content, enter ash discharge conduit 12 conducive to the ash content of fluidized state.

Further, the nominal that the inside nominal diameter of the meridional flow pipe 232 is greater than broadwise fluidisation endless tube 233 is led to Diameter, the part for enabling broadwise fluidisation endless tube 233 to be arranged in meridional flow pipe 232 are fully located in meridional flow pipe 232, are conducive to Fluidizing gas in meridional flow pipe 232 is transmitted in broadwise fluidisation endless tube 233, the nominal of the meridional flow pipe 232 is logical Diameter be greater than the disk body 231 through the width to slot, enable meridional flow pipe 232 be embedded at disk body 231 through into slot, and lead to It crosses welding and realizes that sealing between the two is connected, and meridional flow pipe 232 can be made to protrude from upper surface and the disk body of disk body 231 231 lower surface is conducive to setting air inlet duct 2321 and venthole 2322, wherein disk body 231 is by the Q235B steel plate with a thickness of 6mm Be made, on disk body 231 through being 40mm to the width of slot, the inside nominal diameter of meridional flow pipe 232 is 80mm, meridional flow pipe The width of air inlet duct 2321 on 232 is 20mm, and the diameter of the venthole 2322 on meridional flow pipe 232 is 20mm, zonal flow The inside nominal diameter for changing endless tube 233 is 50mm, and the diameter that broadwise fluidizes the air inlet 2331 of endless tube 233 is 50mm, and broadwise fluidizes ring The diameter of the gas vent 2332 of pipe 233 is 20mm, and the diameter that the setting of meridional flow pipe 232 is worn for broadwise fluidisation endless tube 233 is The hole of 57mm, and sealing welding processing is done after broadwise fluidisation endless tube 233 is worn, certainly, it can also be set as according to actual needs Other are suitably sized, and this is not restricted.

Further, as shown in Figure 10, upper flange 24 is equipped at the lower ending opening of the ontology 21, the splitter column 22 Lower flange 25 is equipped at upper end opening, the ontology 21 passes through the upper flange 24 and the lower flange 25 with the splitter column 22 Sealing is connected, wherein the diameter of upper flange 24 is greater than the diameter of the upper end opening of splitter column 22 and the lower ending opening of ontology 21 Diameter, circumferentially equally spaced multiple bolt apertures of setting on the periphery of upper flange 24, on the periphery of lower flange 25 also circumferentially etc. The multiple bolt apertures of the setting at interval, the bolt apertures of upper flange 24 and the bolt apertures of lower flange 25 correspond, and pass through bolt etc. Connector realizes connection, wherein also settable sealing ring between upper flange 24 and lower flange 25, to guarantee that the sealing of the two connects It connects.

Further, as shown in fig. 10 and fig. 12, 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 each branch's fluidisation pipe 28 are equipped with fluidisation spray head 29, specifically, fluidisation air supply pipe 26 The fluidisation spray head 29 of the outlet end of the fluidisation spray head 29 of outlet end and each branch fluidisation pipe 28 substantially forms pistil shape, multiple branches The setting of pipe 28 is fluidized, the fluidizing gas convenient for entering splitter column 22 through fluidisation air supply pipe 26 is uniformly distributed in splitter column 22 It is interior, it is conducive to fluidizing gas and uniformly rises and enter ash bucket 11 through fluidized disk 23.

Further, as shown in Fig. 4 and Figure 14, the anti-blocking fluidisation ash-transmission system of the spider net type for deduster further includes Nitrogen big gun 3, the nitrogen big gun 3 include nitrogen gas tank 31 and multiple injection pipes 32, and multiple injection pipes 32 are circumferentially spaced to be worn Set on the Fluidizer 2, the entrance of the injection pipe 32 is connected with nitrogen gas tank 31, and the outlet of the injection pipe 32 is pierced by the stream Change device 2 and torrent injector 4 is set, specifically, nitrogen big gun 3 is temporarily opened as fluidisation starter with passing through nitrogen gas tank 31 The high pressure nitrogen of release, the ash content through injection pipe 32 and torrent injector 4 to deposit in high pressure and high speed impact ash bucket 11 will Ash content is broken up, conducive to fluidisation of the subsequent ash content under fluidizing gas effect, wherein and the nitrogen gas tank 31 of nitrogen big gun 3 is substantially cylindrical in shape, Its outlet end is connected with each injection pipe 32, outlet end can also be equipped with for detect, show and to industrial personal computer (or controller) it is anti- Pressure sensor, temperature sensor and the flow sensor of feedback.

Further, as shown in Figure 15 and Figure 16, 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 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 outer tube, the middle part of said inner tube 42 is equipped with Aditus laryngis 421 is inside contracted, 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 gas 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, 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 ash hopper 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 inclined wall for inside contracting 421 top of aditus laryngis of inner tube 42 and the upper angle α of vertical plane, 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 16, in the state that the pressure of the nitrogen in the injection pipe 32 reaches calibration value, institute State the slower inner ring plate 413 for being connected to the outer tube 41 that the lower outer ring plate 423 of inner tube 42 seals, the upper outer ring plate of said inner tube 42 The the first upper inner ring plate 411 for being connected to the outer tube 41 of 422 sealings, makes the nitrogen in injection pipe 32 that can only pass through the first branch Inner tube 42 and be discharged, and cannot be introduced into second branch, guarantee that nitrogen fully enters in inner tube 42 and accelerate, guarantee that nitrogen accelerates effect Fruit and effect is broken up to ash content in ash bucket 11.The present invention is high in the inner to flowing by the special construction of torrent injector 4 The flowing of pressure nitrogen is constrained, and using the structure and inner tube 42 for inside contracting aditus laryngis 421 in moving up in outer tube 41 to change runner Stream of nitrogen gas is constrained, converts pressure potential for the kinetic energy that a part of high pressure nitrogen can not be used to that ash content is pushed to block, and right Nitrogen supercharging increases block clearing gas energy, improves block clearing effect.

Further, as shown in figure 14, 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, is respectively provided with a normally open valve 331 and a pulse 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 for the ponding being discharged in injection pipe 32, and normally closed drain valve 321 is in off state under normal condition, when needing to drain It is then turned on, certainly, can also be as needed, a normally closed drain valve is respectively set on each injection branch pipe 33, normally open valve 331 is normal State is in an open state to be turned off when needing to overhaul a certain injection branch pipe 33, and impulse electromagnetic valve 332 is to close in normal condition State is opened again in the open signal for receiving industrial personal computer and provides block clearing gas, 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, the supply of high pressure nitrogen needed for capable of providing various working, normally closed drain valve 321, The specific 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 by industrial personal computer according to different operating conditions Property control opening and closing.

Further, as shown in Fig. 4 to Fig. 9, what the side wall of the deduster 1 was spaced from top to bottom is equipped with upper limit ash position meter L1 is counted in H1 and lower limit ash position, when reaching the upper limit or lower limit with the grey position in deduster 1, issues alarm, the lower limit ash in time Position meter L1 is located at the top of the entrance of the ash discharge conduit 12 (preferably, lower limit ash position meter L1 is located at the entrance of ash discharge conduit 12 Top 500mm at), to the grey position early warning in ash bucket 11, to avoid grey position to drop to the lower section of lower limit ash position meter L1 in time, and Causing fluidizing gas to be directly entered ash bucket 11, (wherein upper limit ash position meter H1 and lower limit ash position meter L1 is skill known in the state of the art Art, such as radio frequency admittance instrument, pressure sensor etc.), and guarantee 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, and the defeated grey air supply pipe 13 is equipped with defeated grey steam supply valve 131, on the fluidisation air supply pipe 26 Equipped with fluidisation steam supply valve 27, H1, lower limit ash position meter L1, the ash output valve 122, the defeated ash gas supply are counted in upper limit ash position Valve 131 and the fluidisation steam supply valve 27 with industry control mechatronics, wherein injection pipe 32 is equipped with impulse electromagnetic valve 332, pulse Solenoid valve 332 also realizes chain control by industrial personal computer to realize the information feedback of each valve with industry control mechatronics, such as When the ash content accumulating amount in ash bucket 11 is more than upper limit ash position meter H1, H1 alarm is counted in upper limit ash position, and signal is fed back industrial personal computer, Ash output valve 122 is opened in industrial personal computer control, and controls the unlatching of impulse electromagnetic valve 332, provides block clearing gas, and in impulse electromagnetic valve After 332 open, fluidisation steam supply valve 27 and defeated grey steam supply valve 131 are opened immediately, to provide fluidizing gas and defeated ash gas respectively, In, industrial personal computer is technology well known in the prior art, herein with no restrictions.

Preferably, high-order grey position meter H2 and low level ash position meter L2 are also set up in the side wall of deduster 1, high-order ash position counts H2 In the top of low level ash position meter L2, high-order ash position meter H2 is located at the lower section of upper limit ash position meter H1, and low level ash position meter L2 is located at lower limit The top of grey position meter L1, high-order ash position meter H2 and low level ash position meter L2 are for feeding back and showing that ash content accumulates signal, in favor of work Make personnel to check in real time.

Preferably, as shown in figure 4, deduster 1 the also settable multiple pressure detecting meters of side wall, each work is fed back with detection The pressure of condition, such as pressure detecting meter P1 is set in the top of filter bag, while pressure detecting meter P2 is set in the lower section of filter bag, with The pressure difference of filter bag or more is detected by pressure detecting meter P1 and pressure detecting meter P2, is arranged for another example in the lower section of pressure detecting meter P2 Pressure detecting meter P3, pressure detecting meter P3 is located at the top of upper limit ash position meter H1, by making lower limit ash position count L1 pressure detecting Meter, the P3 in terms of through pressure detecting and lower limit ash position count pressure value and ash content gravity that L1 realization generates ash content measurement (under The ash content above pressure value-pressure detecting meter P3 detection pressure value=lower limit ash position meter L1 of grey position meter L1 detection is limited to be produced Raw pressure value, the pressure value that the corresponding gravity definite value of the pressure value+500mm ash content generates in ash bucket 11 is ash discharge conduit The pressure value of the ash content of 12 entrance), in this way, can arrange production according to the numerical value of detection and work and unload grey work, improve life Working efficiency is produced, realizes operation optimization, meanwhile, those numeric feedback industrial personal computers can also be adjusted ash output valve for industrial personal computer 122, the aperture of defeated grey steam supply valve 131 and fluidisation steam supply valve 27 provides foundation, realizes to fluidisation, defeated grey bleed pressure and flow Control realizes ash content by ash discharge conduit 12, most economical with highest grey gas ratio (i.e. the ratio of ash content quality and carrier gas volume) The defeated ash manipulation of fluidisation concentrated phase of safety, preferably, grey gas ratio is 30kg/Nm³(i.e. kilogram/standard cubic meter).

Blast furnace gas cloth bag dedusting device 9 is structure well known in the prior art (as shown in Figure 3), and gas to be filtered is certainly Import 91 enters, and filter bag 94 in it exports after filtering from outlet 92, and ash content then drops down onto 9 bottom of deduster, in lattice Plate 93 is used for overhauling.Wherein, deduster 1 of the invention can be transformed based on existing blast furnace gas cloth bag dedusting device 9, i.e., The present invention be a kind of defeated grey method of anti-blocking fluidisation of the spider net type for deduster based on the transformation of blast furnace gas cloth bag dedusting device with System, in one embodiment, as shown in Figure 4 and Figure 5, deduster 1 is to have the function of filtering function (passing through filter core) and storage ash The shell of blast furnace gas cloth bag dedusting device 9 can be used in the deduster of (passing through ash bucket), to avoid blast furnace gas cloth bag dedusting device 9 waste, economizes on resources；In another embodiment, as shown in Figure 6 and Figure 7, the deduster 1 is to be removed by bag filter of blast furnace gases The ash cellar that dirt device 9 is transformed, the side wall of the deduster 1 are equipped with multiple into grey conduit 15, and the upper end and middle part of the ash bucket 11 are equal Guarantee intensity when deduster 1 stores a large amount of ash contents, to increase structural strength equipped with reinforcing rib 16 to avoid blast furnace gas cloth The waste of bag dust collector 9, economizes on resources, meanwhile, filter bag quantity is reduced, and reduce filter bag height, it can also be according to the weight after storage ash Amount increases the quantity of the support of 1 peripheral wall of deduster；In another embodiment, the deduster 1 is by blast furnace gas cloth bag dedusting The batch can that device 9 is transformed presses deduster, and the lower end of the side wall of the deduster 1 is equipped with air inlet, the side wall of the deduster 1 Upper end is equipped with gas outlet, corresponds in the deduster 1 and is equipped with helical form deflector 17 at the air inlet, realizes cyclone dust removal, The middle part of the deflector 17 extends axially upward setting guide shell, and the guide shell passes through the packing plate in the deduster 1 18, the top interval of the packing plate 18 is equipped with multiple baffle plates 19, interior flow field is transformed, improves gas in deduster Circulation, realize economic security gas flowing, meanwhile, because of the setting of helical form deflector 17, can completely or partially cancel simultaneously Filter bag is removed, or reduces filter bag height.

Spider net type anti-blocking fluidisation ash-transmission system of the present invention for deduster (i.e. spider net type anti-clogging fluidizes ash-transmission system) Block clearing gas (high pressure nitrogen) is provided by nitrogen big gun 3, i.e., opens moment using the impulse electromagnetic valve 332 of nitrogen big gun 3, moment releases The high pressure nitrogen being placed in the nitrogen gas tank 31 of nitrogen big gun blocks or unloads ash blocking hence for defeated ash and carry out block clearing, by swashing Stream injector 4 is ejected in ash bucket 11 acceleration of block clearing gas, and the ash content in ash bucket 11 is broken up, is provided by Fluidizer 2 Fluidizing gas, and ash bucket 11 is uniformly entered through the fluidized disk of Fluidizer 2 23, so that the ash content in ash bucket 11 keeps fluidized suspension State by ash discharge conduit 12 by the ash delivery of fluidized suspension state to defeated grey air supply pipe 13, and passes through the defeated grey gas in it Body is delivered to defeated ash supervisor 14, realizes the coupling of fluidization technique and defeated gray technology, fluid effect is high, and defeated ash is more smooth, can be effective A wide range of continuity ash content blockage problem is solved, ash-deposition is avoided to block, saves defeated grey gas consumption, it is at low cost.Meanwhile it removing Dirt device 1 can be transformed, with targetedly according to purification gas and the grey needs of storage by blast furnace gas cloth bag dedusting device (BFC) Deduster is pressed applied to ash cellar or batch can, solves the blast furnace gas cloth bag dedusting device on the verge of being replaced because of transformation, reduces and repeats Construction cost saves resource.

Embodiment two

The present invention also provides a kind of defeated grey method of the anti-blocking fluidisation of spider net type for deduster, (i.e. spider net type anti-clogging is fluidized Defeated ash method), wherein the defeated grey method of the anti-blocking fluidisation of the spider net type for deduster is used for deduster using as described above The anti-blocking fluidisation ash-transmission system of spider net type, the structure of the anti-blocking fluidisation ash-transmission system of the spider net type for deduster, work are former Reason and effect and embodiment one are all the same, and details are not described herein, the anti-blocking defeated ash side of fluidisation of the spider net type for deduster Method includes the following steps：

Step a, opens the fluidisation steam supply valve 27 on fluidisation air supply pipe 26, and fluidizing gas enters in Fluidizer 2 and through fluidizing Disk 23 enters ash bucket 11, makes the ash content in ash bucket 11 in fluidized suspension state；

Step b enters defeated grey air supply pipe 13 through ash discharge conduit 12 in the ash content of fluidized suspension state, and supplies in the defeated ash Ash cellar is imported through defeated ash supervisor 14 under defeated ash gas effect in tracheae 13.

Further, in the step a, the fluidizing gas in the Fluidizer 2 passes through the air inlet of meridional flow pipe 232 After slot 2321 enters in the meridional flow pipe 232, venthole that a part of fluidizing gas passes through the meridional flow pipe 232 2322 enter the ash bucket 11, and another part fluidizing gas enters the latitude by the air inlet 2331 that broadwise fluidizes endless tube 233 Into fluidisation endless tube 233, and the gas vent 2332 through broadwise fluidisation endless tube 233 enters the ash bucket 11, to pass through each warp The staggeredly spider reticulation presented to fluidisation pipe 232 and each broadwise fluidisation endless tube 233, realizes and passes through equally distributed multiple ventholes 2322 and gas vent 2332 to each region of ash bucket 11 be discharged into fluidizing gas.

Further, further include step a1 before the step a, start nitrogen big gun 3, pass through the nitrogen in nitrogen gas tank 31 Injection pipe 32 enters torrent injector 4, is broken up the ash content in the ash bucket 11 of deduster 1 by the torrent injector 4, for stream Chemical industry provides safeguard.

Further, H1 is counted by the upper limit ash position on the deduster 1 and lower limit ash position counts L1 and detects the ash bucket 11 Interior grey position, in the upper limit ash position of the deduster 1 when meter H1 alarm, starting step a1, i.e., by the knot of upper limit ash position meter detection Fruit feeds back to industrial personal computer, and the opening and closing of nitrogen big gun 3 is controlled by industrial personal computer, opens fluidisation preparation namely ash content is broken up clearly Thick and heavy ash content blocking is pushed open, certainly, such as situations such as ash bucket 11 blocks at work, can also be led at any time by stifled work The opening and closing for crossing industrial personal computer control nitrogen big gun 3, opens blocking cleaning work, wherein and block clearing gas is the high pressure nitrogen in nitrogen big gun 3, In the lower limit ash position of the deduster 1 when meter L1 alarm, ash output valve 122, the stream on the ash discharge conduit 12 are successively closed Change the defeated grey steam supply valve 131 on the fluidisation steam supply valve 27 and the defeated grey air supply pipe 13 on air supply pipe 26, guarantees that ash content is completely defeated It send, wherein defeated ash gas is nitrogen or purified gas.

Further, in the step a1, when the pressure of the nitrogen entered 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, guarantee 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.

In stepb, circulate defeated ash gas in defeated grey air supply pipe 13, ash output valve 122 in opened condition, in ash bucket 11 After ash fluidization, low-voltage space is formed in front of the entrance of ash discharge conduit 12, the ash content of fluidized suspension state is in itself positive pressure It is lower to enter ash discharge conduit 12 and enter defeated grey air supply pipe 13, embolism of the defeated ash gas as the defeated ash of concentrated phase in defeated ash air supply pipe 13 Column pressure source and push fluidisation state ash content complete conveying.

Spider net type anti-blocking fluidisation defeated grey method and system (i.e. spider net type anti-clogging fluidisation defeated ash of the present invention for deduster Method and system), it will be in 1 ash bucket 11 of deduster by the block clearing gas (high pressure nitrogen) that nitrogen big gun 3 and torrent injector 4 spray The ash content fluidizing gas breaing up, while being sprayed by Fluidizer 2 so that the ash content in ash bucket 11 is kept fluidized suspension state and energy Enter defeated grey air supply pipe 13 through ash discharge conduit 12, and will enter in defeated grey air supply pipe 13 by defeated ash gas is in fluidized suspension shape For the ash delivery of state to defeated ash supervisor 14, to import in ash cellar, the present invention realizes the coupling of fluidization technique and defeated gray technology, guarantees Defeated ash is more smooth, can effectively solve a wide range of continuity ash content blockage problem, ash-deposition is avoided to block, and saves defeated ash gas Amount reduces operating cost, meanwhile, deduster 1 can pass through blast furnace gas cloth bag dedusting device according to purification gas and the grey needs of storage (BFC) it is transformed, presses deduster to be targetedly applied to ash cellar or batch can, solve the blast furnace on the verge of being replaced because of transformation Gas Cleaning With Bag House device reduces repeated construction cost, saves resource.In addition, present invention can apply to batch cans to press coal-gas recovering It forms batch can with the coupled system (i.e. I-CHEN) of blast furnace gas dry dust removal and coal-gas recovering is pressed to remove with blast furnace gas dry type Defeated grey coupled system (the i.e. Fluidized conveying Coupling system in Hybrid of of the fluidisation of dirt Equalizing gas recovery and Networks of blast furnace gas dedusters, abbreviation F- CHEN), specifically a kind of expects pipe presses the concentrated phase Pneumatic ash conveying coupled system of coal-gas recovering and blast furnace gas dry dust removal (i.e. Dense phase pneumatic ash conveying Coupling system in Hybrid of Equalizing Gas recovery and Networks of blast furnace gas dedusters, abbreviation D-CHEN), such as can incite somebody to action The present invention is applied to furnace top even pressure coal-gas recovering device, and using the purified purified gas of blast furnace gas dry dust removal apparatus as stream Change gas and defeated ash gas, makes to realize the defeated ash of fluidisation at its cinder-discharging port.

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, but anything that does not depart from the technical scheme of the invention content are changed or are modified to, according to the present invention Technical spirit any simple modification, equivalent change and modification to the above embodiments, still fall within the technology of the present invention side In the range of case.

Claims

1. a kind of anti-blocking fluidisation ash-transmission system of spider net type for deduster, which is characterized in that the spider web for deduster The anti-blocking fluidisation ash-transmission system of formula includes：

Deduster, lower end are equipped with ash bucket, and the side wall of the ash bucket wears ash discharge conduit, the outlet of the ash discharge conduit and defeated ash Air supply pipe 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 with fluidisation air supply pipe, and the upper end of the Fluidizer is equipped with fluidized disk, and the Fluidizer passes through institute Fluidized disk is stated to be connected to the ash bucket.

2. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 1 for deduster, which is characterized in that it is described go out The entrance of grey conduit is equipped with ash-collecting cover, and the outlet of the ash discharge conduit is with the defeated grey air supply pipe with the inclined phase of scheduled angle Even.

3. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 2 for deduster, which is characterized in that described defeated The outlet of grey air supply pipe is connected by defeated ash supervisor with ash cellar, is entered the defeated ash through the ash discharge conduit from the ash bucket and is supplied The ash content of pipe can import the ash cellar through the defeated ash supervisor under the defeated ash gas effect in the defeated grey air supply pipe.

4. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 1 for deduster, which is characterized in that the stream Changing device includes ontology and splitter column, and the sealing that the splitter column can be dismantled is set to the lower section of the ontology, the upper end of the ontology The lid of sealing sets the fluidized disk, and the outlet end of the fluidisation air supply pipe is protruded into the splitter column, through the fluidisation air supply pipe The ash bucket can be entered through the fluidized disk into the fluidizing gas in the splitter column.

5. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 4 for deduster, which is characterized in that the stream Changing disk includes disk body and multiple meridional flow pipes, the disk body be equipped with it is multiple through to slot, it is each described to be sealed into slot It is embedded the meridional flow pipe, the lower wall for protruding the meridional flow pipe of the disk body lower surface is equipped with multiple air inlets Slot, protrude the upper side wall interval of the meridional flow pipe of the disk body upper surface is equipped with multiple ventholes.

6. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 5 for deduster, which is characterized in that the stream Change fixed multiple broadwises on disk and fluidize endless tube, multiple broadwise fluidisation endless tubes are with one heart and spaced radial is arranged, the zonal flow That changes endless tube sealing is arranged in each meridional flow pipe, under the broadwise fluidisation endless tube in the meridional flow pipe Side wall is equipped with air inlet, and the upper side wall interval of the broadwise fluidisation endless tube outside the meridional flow pipe is equipped with multiple rows Stomata.

7. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 6 for deduster, which is characterized in that the warp It is greater than the inside nominal diameter of broadwise fluidisation endless tube to the inside nominal diameter of fluidisation pipe, the inside nominal diameter of the meridional flow pipe is greater than The disk body through the width to slot.

8. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 4 for deduster, which is characterized in that described It is equipped with upper flange at the lower ending opening of body, is equipped with lower flange, the ontology and the shunting at the upper end opening of the splitter column Tower is connected by the upper flange with lower flange sealing.

9. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 1 for deduster, which is characterized in that the stream What the outlet end of change air supply pipe radially outward dissipated is equipped with multiple branches fluidisation pipe, the outlet end edge of multiple branches' fluidisation pipes Equally circumferentially spaced, the outlet end of the outlet end of the fluidisation air supply pipe and each branch's fluidisation pipe is equipped with fluidisation spray Head.

10. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 1 for deduster, which is characterized in that described The anti-blocking fluidisation ash-transmission system of spider net type for deduster further includes nitrogen big gun, and the nitrogen big gun includes nitrogen gas tank and multiple injections Pipe, multiple injection pipes it is circumferentially spaced be arranged in the Fluidizer, the entrance of the injection pipe is connected with nitrogen gas tank, institute The outlet for stating injection pipe is pierced by the Fluidizer and torrent injector is arranged.

11. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 10 for deduster, which is characterized in that described Torrent injector includes outer tube and inner tube, and what said inner tube can move up and down is arranged in the outer tube, the outer tube wall Projection the first upper inner ring plate and the second upper inner ring plate at upper end interval, the lower end projection slower inner ring plate of the outer tube wall are described The middle part of inner tube is equipped with and inside contracts aditus laryngis, and said inner tube inside contracts outside the upper end of aditus laryngis that outer ring plate, said inner tube inside contract in projection The lower end evagination of aditus laryngis sets outer ring plate, the upper outer ring plate be located at the first upper inner ring plate and the second upper inner ring plate it 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 there is gap between the lower outer ring plate and the inner wall of the outer tube.

12. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 11 for deduster, which is characterized in that in institute State the nitrogen in injection pipe pressure reach calibration value in the state of, being connected to for the lower outer ring plate of said inner tube sealing is described outer The slower inner ring plate of pipe, the first upper inner ring plate for being connected to the outer tube of the upper outer ring plate sealing of said inner tube.

13. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 1 for deduster, which is characterized in that described What the side wall of deduster was spaced from top to bottom be equipped with upper limit ash position meter and lower limit ash position meter, lower limit ash position meter be located at it is described go out The top of the entrance of grey 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, institute It states fluidisation air supply pipe and is equipped with fluidisation steam supply valve, it is upper limit ash position meter, lower limit ash position meter, the ash output valve, described defeated Grey steam supply valve and the fluidisation steam supply valve with industry control mechatronics.

14. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 1 for deduster, which is characterized in that described The side wall of deduster be equipped with it is multiple into grey conduit, the upper end and middle part of the ash bucket are equipped with reinforcing rib.

15. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 1 for deduster, which is characterized in that described The lower end of the side wall of deduster is equipped with air inlet, and the upper end of the side wall of the deduster is equipped with gas outlet, right in the deduster It answers and is equipped with helical form deflector at the air inlet, extend axially upward setting guide shell in the middle part of the deflector, it is described to lead Flow cartridge passes through the packing plate in the deduster, and the top interval of the packing plate is equipped with multiple baffle plates.

16. the anti-blocking fluidisation ash-transmission system of the spider net type according to claim 1 for deduster, which is characterized in that described Defeated ash gas in defeated ash air supply pipe is purified gas, and the fluidizing gas in the fluidisation air supply pipe is purified gas.

17. a kind of defeated grey method of the anti-blocking fluidisation of spider net type for deduster, which is characterized in that the spider web for deduster The defeated grey method of the anti-blocking fluidisation of formula is using the anti-blocking fluidisation of the spider net type for deduster as described in any one of claims 1 to 16 Ash-transmission system, the defeated grey method of the anti-blocking fluidisation of the spider net type for deduster include the following steps：

Step a, opens the fluidisation steam supply valve on fluidisation air supply pipe, and fluidizing gas enters in Fluidizer and enters ash through fluidized disk Bucket makes the ash content in ash bucket in fluidized suspension state；

Step b enters defeated grey air supply pipe through ash discharge conduit in the ash content of fluidized suspension state, and in the defeated grey air supply pipe Ash cellar is imported through defeated ash supervisor under defeated ash gas effect.

18. the defeated grey method of the anti-blocking fluidisation of the spider net type according to claim 17 for deduster, which is characterized in that in institute It states in step a, after the fluidizing gas in the Fluidizer is entered in the meridional flow pipe by the air inlet duct of meridional flow pipe, A part of fluidizing gas enters the ash bucket by the venthole of the meridional flow pipe, and another part fluidizing gas passes through broadwise The air inlet for fluidizing endless tube enters in broadwise fluidisation endless tube, and the gas vent through broadwise fluidisation endless tube enters the ash Bucket.

19. the defeated grey method of the anti-blocking fluidisation of the spider net type according to claim 17 for deduster, which is characterized in that in institute Stating step a further includes before step a1, starts nitrogen big gun, the nitrogen in nitrogen gas tank is made to enter torrent injector through injection pipe, is led to The torrent injector is crossed to break up the ash content in the ash bucket of deduster.

20. the defeated grey method of the anti-blocking fluidisation of the spider net type according to claim 19 for deduster, which is characterized in that pass through Upper limit ash position meter and lower limit ash position meter on the deduster detect the grey position in the ash bucket, in the upper limit ash of the deduster When the meter alarm of position, it is supravasal successively to close the ash discharge when alarm is counted in the lower limit ash position of the deduster by starting step a1 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.

21. the defeated grey method of the anti-blocking fluidisation of the spider net type according to claim 19 for deduster, which is characterized in that in institute It states in step a1, when the pressure of the nitrogen entered in the injection pipe reaches calibration value, the inner tube of the torrent injector exists It is moved up under the pressure effect of nitrogen, the lower outer ring plate sealing of the inner tube of the torrent injector is connected to the torrent spray The slower inner ring plate of the outer tube of emitter, the upper outer ring plate sealing of the inner tube of the torrent injector are connected to the torrent injector Outer tube the first upper inner ring plate, nitrogen in the injection pipe inside contracts after aditus laryngis accelerates through the inner tube of the torrent injector Spray into the ash bucket.