CN109675396A - A kind of dust high-efficiency dust removal system and technique - Google Patents
A kind of dust high-efficiency dust removal system and technique Download PDFInfo
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- CN109675396A CN109675396A CN201910112490.7A CN201910112490A CN109675396A CN 109675396 A CN109675396 A CN 109675396A CN 201910112490 A CN201910112490 A CN 201910112490A CN 109675396 A CN109675396 A CN 109675396A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
Abstract
The invention discloses a kind of dust high-efficiency dust removal systems, including pre- sedimentation device, exhaust dust device with bag, storage ash cellar, discharge bin；Present system separates the large dust particle in dust air-flow using pre- sedimentation device, is not only conducive to subsequent exhaust dust device with bag and handles, but also greatly reduce the repair rate of exhaust dust device with bag, improves life of bag filter；Exhaust dust device with bag cooperates the mode that water mist sprinkling moistens stirring and foam sprays, and is not only conducive to store ash cellar storage dust, but also draw off conveniently in dust.The invention also discloses a kind of techniques of dust high-efficiency dust removal system, including settle in advance, bag-type dusting, storage, water mist stirring and foam sprinkling step；The advantages of large dust particle is pre-separated by present invention process, then carries out bag-type dusting again, is had high dust collection efficiency, is reduced repair rate；Before the dust outward transport of storage, the problem of through water mist sprinkling and being stirred continuously, then foam sprinkling, dust reentrainment of dust can be effectively reduced.
Description
Technical field
The invention belongs to treating flour dust technical fields, and in particular to a kind of dust high-efficiency dust removal system and technique.
Background technique
For in blast furnace production process, discharge region, feed region weigh region, raw material on truck region and slot
The dusting problems such as conveyor zones, storing region are serious.Lasting fugitive dust is diffused and is overflowed outside workshop in workshop, to workshop
Serious environmental pollution is caused in interior and workshop neighboring area, while also causing to endanger to the physical and mental health of operation field operator
Evil.For this purpose, researching and developing a kind of dust high-efficiency dust removal system for being able to solve the above problem and technique is very important.
Summary of the invention
The first object of the present invention is to provide a kind of dust high-efficiency dust removal system.
The second object of the present invention is to provide a kind of technique of dust high-efficiency dust removal system.
The first object of the present invention is achieved in that including pre- sedimentation device, exhaust dust device with bag, stores ash cellar, discharging
Storehouse, it is characterised in that the outlet side of the pre- sedimentation device is connected by the inlet end of pipeline and exhaust dust device with bag, described
Exhaust dust device with bag, store ash cellar, discharge bin and set gradually from top to bottom, the exhaust dust device with bag and storing is set between ash cellar
There is the first screw conveyor, the feed end of first screw conveyor and the bottom of exhaust dust device with bag connect, discharge end
It is connect with ash cellar top feed mouth is stored, the first paddle electric stirring mechanism, the first paddle electric mixing is equipped in the storage ash cellar
The agitating paddle end for mixing mechanism is equipped with material scraping plate, and the storage ash cellar bottom discharge port is connect with discharge bin top feed mouth, and
It stores ash cellar bottom discharge port and is equipped with solenoid valve, be equipped with the second paddle electric stirring mechanism in the discharge bin, in discharge bin
Top is equipped with water mist spraying head, and discharge bin bottom discharge port is connect with the feed end of the second screw conveyor, discharge bin bottom discharge
Mouth is equipped with solenoid valve, and second screw conveyor is equipped with foam maker, the discharging of second screw conveyor
It holds bottom to be equipped with material guiding hopper, is respectively equipped with foam nozzle, foam on the inside of the top, material guiding hopper in second screw conveyor
Spray head is connect by delivery pipe with foam maker.
The second object of the present invention, which is achieved in that, is first collected and fed into pre- sedimentation by each dust region for dust air-flow
It is settled in advance in device, the large dust particle that partial size is more than 50 μm is isolated and collected from dust air-flow；By preliminary sedimentation
Drop treated dust air-flow, which is sent into exhaust dust device with bag, carries out pulse bag-type dust-removing, net gas direct emission；Through impulse bag
The dust and large dust particle that dedusting obtains are sent into simultaneously stores ash cellar storage；Atomized water spray is carried out to the dust being discharged into discharge bin again
And it is stirred continuously 1 ~ 30min；Then foam sprinkling processing is carried out to dust before entrucking outward transport again.
Beneficial effects of the present invention:
1, system of the invention separates the large dust particle in dust air-flow using pre- sedimentation device, is not only conducive to subsequent
Exhaust dust device with bag processing, and the repair rate of exhaust dust device with bag is greatly reduced, improve life of bag filter；Pocket type removes
Dirt device cooperates the mode that water mist sprinkling moistens stirring and foam sprays, and is not only conducive to store ash cellar storage dust, but also in powder
Dirt is drawn off conveniently, while during dust outward transport, can effectively avoid the problem that reentrainment of dust；System of the invention has powder
Efficient, easy to use, the convenient for safeguarding advantage of dirt processing；
2, it is formed in the expansion chamber of pre- sedimentation device and is equipped with the mobile folding shape dust scraping plate of liftable above the flow-stopping plate of airflow channel；
Folding shape dust scraping plate can not only play the large dust particle settlement action promoted in air-flow, but also need to carry out clearly flow-stopping plate
When grey, it is only necessary to lifting cylinder is controlled, the ash adhered on flow-stopping plate can be scraped in dust discharge bucket, it is not only easy to operate, and
And ensure the large dust particle separating effect of flow-stopping plate；
3, exhaust dust device with bag can not influence normal dedusting, have the advantages that easy to operate easily to filter bag real-time examination and repair；Pressure
Contracting air pulse jet pipe is pulled up or puts down under the drive of cylinder, avoids that filter bag lifting is stopped to be taken out；After filter bag taking-up, bag
Formula dust-extraction unit passes through mobile dust-proof plate, is blocked the mounting hole of filter bag installation orifice plate, substantially reduces dust and gas in maintenance process
In escape amount；The filter bag of exhaust dust device with bag is taken out in a manner of lifting bag taking hole, has stable structure, operation just
The advantages of prompt, conducive to maintenance;
4, large dust particle is pre-separated by being settled in advance to dust air-flow, then carries out bag again by technique of the invention
The advantages of formula dedusting has high dust collection efficiency, reduces repair rate；Before the dust outward transport of storage, through water mist sprinkling and constantly stir
The problem of mixing, then foam sprinkling, can effectively reducing dust reentrainment of dust, ensures working condition meet the requirement of environmental protection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of present system；
Fig. 2 is the structural schematic diagram of pre- sedimentation device；
Fig. 3 is the structural schematic diagram of exhaust dust device with bag；
In figure: the pre- sedimentation device of 1-, 1a- expansion chamber, 1b- dust discharge bucket, 1c- air inlet pipe, 1d- escape pipe, 1e- flow-stopping plate, 1f- folding
Shape dust scraping plate, 1g- accommodating chamber, 1h- connecting plate, 1i- cross bar, 1j- lifting cylinder, 2- exhaust dust device with bag, 2a- shell, 2b- filter
Bag installation orifice plate, 2c- filter bag, 2d- pulse of compressed air jet pipe, the dust mouth 2e-, 2f- flexible pipe, 2g- cylinder, 2h- dust-separation machine
Structure accommodating chamber, 2i- dust-proof plate, 2j- lead screw motor, the net gas discharge outlet of 2k-, 2l- position orifice plate, 2m- capping, 2n- vertical bar, 2o-
Position-arresting disk, 2p- set up the stage, 3- storage ash cellar, 4- discharge bin, the first screw conveyor of 5-, 6- the first paddle electric stirring mechanism, and 7- is scraped
Flitch, 8- the second paddle electric stirring mechanism, 9- water mist spraying head, the second screw conveyor of 10-, 11- foam maker, 12- bubble
Foam spray head, 13- bulkhead vibration device, 14- connect dirt case.
Specific embodiment
The present invention will be further described below with reference to the drawings, but the present invention is limited in any way, base
In present invention teach that it is made it is any transform or replace, all belong to the scope of protection of the present invention.
The present system as shown in 1 ~ Fig. 3 of attached drawing includes pre- sedimentation device 1, exhaust dust device with bag 2, stores ash cellar 3, discharge bin
4, the outlet side of the pre- sedimentation device 1 is connect by pipeline with the inlet end of exhaust dust device with bag 2, the bag-type dusting
Device 2 stores ash cellar 3, discharge bin 4 and sets gradually from top to bottom, and the exhaust dust device with bag 2 and storing is equipped with the between ash cellar 3
The feed end of one screw conveyor 5, first screw conveyor 5 is connect with the bottom of exhaust dust device with bag 2, discharge end with
The connection of 3 top feed mouth of ash cellar is stored, is equipped with the first paddle electric stirring mechanism 6, the first paddle electric mixing in the storage ash cellar 3
The agitating paddle end for mixing mechanism 6 is equipped with material scraping plate 7, and 3 bottom discharge port of storage ash cellar and 4 top feed mouth of discharge bin connect
It connects, and stores 3 bottom discharge port of ash cellar and be equipped with solenoid valve, be equipped with the second paddle electric stirring mechanism 8 in the discharge bin 4, unload
Top in feed bin 4 is equipped with water mist spraying head 9, and 4 bottom discharge port of discharge bin connect with the feed end of the second screw conveyor 10, unloads
4 bottom discharge port of feed bin be equipped with solenoid valve, second screw conveyor 10 be equipped with foam maker 11, described second
The discharge end bottom of screw conveyor 10 is equipped with material guiding hopper, on the inside of the top, material guiding hopper in second screw conveyor 10
It is respectively equipped with foam nozzle 12, foam nozzle 12 is connect by delivery pipe with foam maker 11.
Preferably, 1 bottom of pre- sedimentation device is equipped with and connects dirt case 14.
Preferably, the dirt case 14 that connects is connect by conveying device with ash cellar 3 is stored.
Preferably, the inlet end of the pre- sedimentation device 1 is connect by pipeline with the fume trap cover in each dust region.
Preferably, the storage ash cellar 3, discharge bin 4 side be respectively equipped with bulkhead vibration device 13.
Preferably, the foam nozzle at the top in second screw conveyor 10 is along the defeated of the second screw conveyor 10
Send direction successively spaced set.
Preferably, the exhaust dust device with bag 2 is long bag and low pulse formula deduster.
Preferably, the storage ash cellar 3 is equipped with level-sensing device.
Preferably, the water mist spraying head 9 is lotus flower spraying nozzle.
Preferably, the two sides in the material guiding hopper are oppositely arranged foam nozzle respectively.
Preferably, the pre- sedimentation device 1 includes expansion chamber 1a, dust discharge bucket 1b, the two sides the expansion chamber 1a difference
It is connect by pipeline with the inlet end of exhaust dust device with bag 2 equipped with air inlet pipe 1c, escape pipe 1d, the escape pipe 1d, it is described
Expansion chamber 1a in flow-stopping plate 1e vertical equipped with several and mutual dislocation, constitute airflow channel, the row between baffle
Dirt bucket 1b is set to the bottom of expansion chamber 1a, and the air inlet pipe 1c is larger close to one end nozzle of expansion chamber 1a, far from expansion chamber
One end nozzle of 1a is smaller, and the escape pipe 1d is larger close to one end nozzle of expansion chamber 1a, one end far from expansion chamber 1a
Nozzle is smaller, is equipped with opening at the top of the expansion chamber 1a, the expansion chamber 1a top open part between flow-stopping plate 1e is equipped with two-by-two
Roll over shape dust scraping plate 1f, folding shape dust scraping plate 1f is made of two pieces of inclined plates, the angle between inclined plate vertically upward, the expansion chamber 1a
Top is equipped with accommodating chamber 1g, and the two sides folding shape dust scraping plate 1f are vertically arranged with connecting plate 1h respectively, and connecting plate 1h is located at
In accommodating chamber 1g, the top connecting plate 1h is connect with cross bar 1i, is equipped with lifting cylinder 1j, lifting cylinder at the top of the accommodating chamber 1g
The piston rod of 1j, which passes through, to be connect at the top of accommodating chamber 1g with the top cross bar 1i.
Preferably, it is on the lesser nozzle of air inlet pipe 1c along locating horizontal position lower than expansion chamber 1a or more
Halve horizontal position locating for horizontal plane.
Preferably, it is on the lesser nozzle of escape pipe 1d along locating horizontal position lower than expansion chamber 1a or more
Halve horizontal position locating for horizontal plane.
Preferably, the included angle between the inclined plate is 45 ~ 60 °.
Preferably, it is in contact at the top of the inclined plate and flow-stopping plate 1e.
Preferably, it is opened respectively at the top of corresponding expansion chamber 1a at the top of the flow-stopping plate 1e of most two sides in the flow-stopping plate 1e
Mouth edge consolidation.
Preferably, the dust discharge bucket 1b at least 2.
Preferably, the dust in the dust discharge bucket 1b is the granule dust that partial size is more than 50 μm.
Preferably, the exhaust dust device with bag 2 includes shell 2a, filter bag installation orifice plate 2b, filter bag 2c, compressed air arteries and veins
Jet pipe 2d is rushed, the bottom shell 2a is tapered, and conical lower portion side is equipped with air inlet, the lower end of conical lower portion is equipped with dirt
Mouth 2e, air inlet are connect by pipeline with the outlet side of pre- sedimentation device 1, and the filter bag installation orifice plate 2b is horizontally placed on shell
Top in body 2a will be divided into upper layer and lower layer space in shell 2a, upper space is air-purifying chamber, and lower layer space is dust and gas room, institute
The filter bag 2c stated is located in dust and gas room, and the upper end filter bag 2c is connect with the mounting hole of filter bag installation orifice plate 2b, the pressure
Contracting air pulse jet pipe 2d has multiple, a corresponding pulse of compressed air jet pipe 2d above each row's filter bag 2c, and compressed air arteries and veins
It rushes the Venturi tube being arranged in the puff prot and the upper end filter bag 2c of the bottom jet pipe 2d to correspond, the pulse of compressed air spray
Pipe 2d is connect by flexible pipe 2f with the feeder outside shell 2a, is sloped downwardly outside the shell 2a and is provided with cylinder
2g, cylinder 2g and pulse of compressed air jet pipe 2d are corresponded, and the piston rod of cylinder 2g passes through shell 2a and pulse of compressed air
The top of jet pipe 2d is articulated and connected, and dust-separation mechanism accommodating chamber 2h is equipped with outside the cylinder 2g opposite other side shell 2a,
Dust-separation mechanism, the corresponding dust-separation mechanism of each row's filter bag 2c, the dust-separation machine are equipped in the dust-separation mechanism accommodating chamber 2h
Structure includes dust-proof plate 2i, lead screw motor 2j, and one end of dust-proof plate 2i passes through shell 2a and rides upon on filter bag installation orifice plate 2b, separately
The sliding block being arranged on one end and lead screw motor 2j screw rod is connect, and the air-purifying chamber side surface upper part is equipped with net gas discharge outlet 2k.
Preferably, the top in the air-purifying chamber is equipped with positioning orifice plate 2l, is equipped with bag taking hole at the top of the shell 2a,
Through-hole, the top shell 2a bag taking hole, the mounting hole of filter bag installation orifice plate 2b of the positioning orifice plate 2l is corresponding, described
The upper end filter bag 2c is arranged with sealing ring, the mounting hole close contact of sealing ring and filter bag installation orifice plate 2b, the bag taking hole spiral shell
Line is connected with one end of capping 2m, vertical bar 2n and capping 2m bottom margin consolidation, the other end and filter bag 2c upper end-face edge are consolidated, erected
Bar 2n at least there are two and be oppositely arranged, the vertical bar 2n is installed with position-arresting disk 2o, and position-arresting disk 2o is located at the logical of positioning orifice plate
In hole.
Preferably, the capping 2m is equipped with handwheel.
Preferably, the air-purifying chamber side is equipped with maintenance door.
Preferably, bag cage is equipped in the filter bag 2c.
Preferably, pressure gauge is equipped on the outside of the shell 2a.
Preferably, the bottom in the air-purifying chamber is equipped with the 2p that sets up the stage, and the end of pulse of compressed air jet pipe 2d is set up
In on the 2p that sets up the stage.
Preferably, the dust mouth 2e is equipped with baiting valve.
Dust air-flow is first collected and fed into pre- sedimentation device by the technique of dust high-efficiency dust removal system by each dust region
It is settled in advance, the large dust particle that partial size is more than 50 μm is isolated and collected from dust air-flow；By pre- settlement treatment
Dust air-flow afterwards is sent into exhaust dust device with bag and carries out pulse bag-type dust-removing, net gas direct emission；It is obtained through pulse bag-type dust-removing
To dust and large dust particle simultaneously be sent into store ash cellar storage；Atomized water spray and continuous is carried out to the dust that is discharged into discharge bin again
Stir 1 ~ 30min；Then foam sprinkling processing is carried out to dust before entrucking outward transport again.
The working principle and the course of work of present system:
Air-flow with dust enters expansion chamber 1aa by air inlet pipe 1c, the horizontal position as locating for the smaller nozzle of air inlet pipe 1c
It is lower, so that high temperature gas flow enters the lower stream of airflow weakened condition that air inlet pipe 1c flowing is more balanced, in reduction air inlet pipe 1c；Gas
Stream reaches in expansion chamber 1a, and since flow section expands, flow velocity is reduced, and heavier dust particles are under the effect of gravity slowly to row
Dirt bucket 1b sedimentation；Meanwhile dust-contained airflow impact, on flow-stopping plate 1e, drastic shift occurs for airflow direction, by dust particles sheet
The inertia force of body acts on, it is made to separate with air-flow and settle to dust discharge bucket 1b；And when air-flow uplink in airflow channel, into one
Step collision makes airflow direction occur drastic shift again between folding shape dust scraping plate, and dust particles separate with air-flow and to dust discharge
Struggle against 1b sedimentation, to improve separating effect；Treated, and air-flow is discharged through escape pipe 1d；
When the surface flow-stopping plate 1e, which is attached with more dust object, to be needed to clear up, first stop air inlet；Then start lifting cylinder 1j, rise
Sending down abnormally ascending cylinder 1j control cross bar 1i is moved down；It rolls in the 1f folding process of shape dust scraping plate, the opposite flow-stopping plate in the two sides shape dust scraping plate 1f will be rolled over
The dust object adhered on 1e is gradually scraped and is fallen in dust discharge bucket 1b；After scraping, lifting cylinder 1j control folding shape dust scraping plate
1f returns to initial position；It can normal air inlet dedusting；
Escape pipe 1d is discharged dust and gas and enters dust and gas room by the air inlet of exhaust dust device with bag through pipeline, and is attached to filter bag 2c；Pressure
The impulsive compressional air draught that contracting air pulse jet pipe 2d sprays is blown by Venturi tube, while bringing net air into, moment to
Blowing in filter bag 2c, forms pulse jitter, is adhered under the dust unexpected strong shake herein of filter bag outer surface, is detached from filter bag
2c falls；When needing to take out filter bag 2c maintenance, first control needs the corresponding pulse of compressed air of that row's filter bag 2c overhauled
Jet pipe 2d stops working, and then controls the corresponding cylinder 2g starting of pulse of compressed air jet pipe 2d, piston rod retract cylinder process
In be pulled up pulse of compressed air jet pipe 2d, while flexible pipe 2f be in bending；
Then handwheel is rotated, screws out capping 2m from bag taking hole, then capping 2m is mentioned upwards, pacifies filter bag 2c through filter bag
The mounting hole of dress orifice plate 2b, the through-hole for positioning orifice plate 2l, the top shell 2a bag taking hole sequentially pass through, that is, take out；Taking-up process, can
Same row's filter bag is successively sequentially taken out, one filter bag of every taking-up, control lead screw motor 2j starting, make lead screw motor 2j drive every
Dirt plate 2i horizontal sliding on filter bag installation orifice plate 2b, and the mounting hole of the filter bag for having taken out filter bag installation orifice plate 2b is blocked,
Prevent dust from escaping；Realize on-bne repair；
When needing to reinstall filter bag 2c, filter bag is packed into from bag taking hole, positioning orifice plate 2l plays the role of preventing filter bag play, improves
Mounting stability；Then control lead screw motor 2j drives dust-proof plate 2i to gradually return in dust-separation mechanism accommodating chamber 2h, meanwhile, it will seal
Lid 2m is screwed into bag taking hole, and the mounting hole of sealing ring and filter bag installation the orifice plate 2b of the upper end filter bag 2c are in close contact, i.e. filter bag 2c
It is fixed；
It is handled through exhaust dust device with bag 2；Dust is discharged from 2 lower part of exhaust dust device with bag, and is sent by the first screw conveyor 5
Ash cellar 3 is stored to store；During storage, periodically turn on the first paddle electric stirring mechanism 6, to store in ash cellar 3 dust that stores into
Row stirring, prevents dust hardened, meanwhile, material scraping plate 7 plays the role of to storage 3 inner wall cleaning of ash cellar, and blending bunker wall vibrations fill
It sets 13 and further increases cleaning effect and discharging effect；When needing to be discharged the dust in storage ash cellar 3, first opens and store ash cellar 3
Bottom solenoid valve；Dust is drained into discharge bin 4, water mist spraying head 9 spray water mist when dust quickly unite, while cooperate second
The stirring of paddle electric stirring mechanism 8 is sufficiently mixed dust and water uniformly；Then 4 bottom solenoid valve of discharge bin is opened again, the
Two screw conveyors 10 convey material, in transmission process, the object of the foam nozzle of 10 inner top of the second screw conveyor to conveying
Expect that foam is sprayed on surface, carries out dust-proof pretreatment, and in material from the discharge end dropping process of the second screw conveyor 10, it leads
Foam nozzle 12 on the inside of hopper further avoids fugitive dust, while foam mixes package with particulate dust, makes to fall under material guiding hopper
The splicing transport vehicle of side is raised without dust, is charged and is transported outward to be conducive to splicing transport vehicle.
Below with reference to 1 ~ embodiment of embodiment 3, the invention will be further described.
Embodiment 1
Dust air-flow is first collected and fed into pre- sedimentation device by each dust region and is carried out by the technique of dust high-efficiency dust removal system
Pre- sedimentation, the large dust particle that partial size is more than 50 μm is isolated and is collected from dust air-flow；By settling in advance, treated
Dust air-flow is sent into exhaust dust device with bag and carries out pulse bag-type dust-removing, net gas direct emission；It is obtained through pulse bag-type dust-removing
Dust and large dust particle are sent into simultaneously stores ash cellar storage；Atomized water spray is carried out to the dust being discharged into discharge bin again and is stirred continuously
1min；Then foam sprinkling processing is carried out to dust before entrucking outward transport again.
Embodiment 2
Dust air-flow is first collected and fed into pre- sedimentation device by each dust region and is carried out by the technique of dust high-efficiency dust removal system
Pre- sedimentation, the large dust particle that partial size is more than 50 μm is isolated and is collected from dust air-flow；By settling in advance, treated
Dust air-flow is sent into exhaust dust device with bag and carries out pulse bag-type dust-removing, net gas direct emission；It is obtained through pulse bag-type dust-removing
Dust and large dust particle are sent into simultaneously stores ash cellar storage；Atomized water spray is carried out to the dust being discharged into discharge bin again and is stirred continuously
30min；Then foam sprinkling processing is carried out to dust before entrucking outward transport again.
Embodiment 3
Dust air-flow is first collected and fed into pre- sedimentation device by each dust region and is carried out by the technique of dust high-efficiency dust removal system
Pre- sedimentation, the large dust particle that partial size is more than 50 μm is isolated and is collected from dust air-flow；By settling in advance, treated
Dust air-flow is sent into exhaust dust device with bag and carries out pulse bag-type dust-removing, net gas direct emission；It is obtained through pulse bag-type dust-removing
Dust and large dust particle are sent into simultaneously stores ash cellar storage；Atomized water spray is carried out to the dust being discharged into discharge bin again and is stirred continuously
15min；Then foam sprinkling processing is carried out to dust before entrucking outward transport again.
Claims (10)
1. a kind of dust high-efficiency dust removal system, including pre- sedimentation device (1), exhaust dust device with bag (2), storage ash cellar (3), discharge bin
(4), it is characterised in that the outlet side of the pre- sedimentation device (1) is connected by pipeline and the inlet end of exhaust dust device with bag (2)
It connects, the exhaust dust device with bag (2), storage ash cellar (3), discharge bin (4) are set gradually from top to bottom, the bag-type dusting dress
It sets (2) and stores and be equipped with the first screw conveyor (5) between ash cellar (3), the feed end and bag of first screw conveyor (5)
The bottom of formula dust-extraction unit (2) connects, and discharge end is connect with ash cellar (3) top feed mouth is stored, and is equipped in the storage ash cellar (3)
The agitating paddle end of first paddle electric stirring mechanism (6), the first paddle electric stirring mechanism (6) is equipped with material scraping plate (7), described
Storage ash cellar (3) bottom discharge port connect with discharge bin (4) top feed mouth, and store ash cellar (3) bottom discharge port be equipped with electromagnetism
Valve, the discharge bin (4) is interior to be equipped with the second paddle electric stirring mechanism (8), and the top in discharge bin (4) is equipped with water mist spraying head
(9), discharge bin (4) bottom discharge port is connect with the feed end of the second screw conveyor (10), and discharge bin (4) bottom discharge port is set
There is solenoid valve, second screw conveyor (10) is equipped with foam maker (11), second screw conveyor
(10) discharge end bottom is equipped with material guiding hopper, sets respectively on the inside of the top, material guiding hopper in second screw conveyor (10)
Have foam nozzle (12), foam nozzle (12) is connect by delivery pipe with foam maker (11).
2. dust high-efficiency dust removal system according to claim 1, it is characterised in that the air inlet of the pre- sedimentation device (1)
End is connect by pipeline with the fume trap cover in each dust region.
3. dust high-efficiency dust removal system according to claim 1, it is characterised in that the storage ash cellar (3), discharge bin (4)
Side be respectively equipped with bulkhead vibration device (13).
4. dust high-efficiency dust removal system according to claim 1, it is characterised in that second screw conveyor (10)
Conveying direction successively spaced set of the foam nozzle at interior top along the second screw conveyor (10).
5. dust high-efficiency dust removal system according to claim 1, it is characterised in that the pre- sedimentation device (1) includes heavy
Room (1a), dust discharge bucket (1b) drop, and the two sides the expansion chamber (1a) are respectively equipped with air inlet pipe (1c), escape pipe (1d), described
Escape pipe (1d) is connect by pipeline with the inlet end of exhaust dust device with bag (2), is equipped with several in the expansion chamber (1a)
Vertical and mutual dislocation flow-stopping plate (1e) constitutes airflow channel between baffle, and the dust discharge bucket (1b) is set to expansion chamber
The bottom of (1a), the air inlet pipe (1c) is larger close to one end nozzle of expansion chamber (1a), one end far from expansion chamber (1a)
Nozzle is smaller, and the escape pipe (1d) is larger close to one end nozzle of expansion chamber (1a), the end pipe far from expansion chamber (1a)
Mouth is smaller, opening is equipped at the top of the expansion chamber (1a), two-by-two expansion chamber (1a) top open part between flow-stopping plate (1e)
Equipped with folding shape dust scraping plate (1f), folding shape dust scraping plate (1f) is made of two pieces of inclined plates, and the angle between inclined plate is vertically upward, described
It is equipped with accommodating chamber (1g) at the top of expansion chamber (1a), described two sides folding shape dust scraping plate (1f) are vertically arranged with connecting plate respectively
(1h), and connecting plate (1h) is located in accommodating chamber (1g), the connecting plate top (1h) is connect with cross bar (1i), the accommodating chamber
It is equipped with lifting cylinder (1j) at the top of (1g), the piston rod of lifting cylinder (1j) passes through at the top of accommodating chamber (1g) and the top cross bar (1i)
Connection.
6. dust high-efficiency dust removal system according to claim 5, it is characterised in that described air inlet pipe (1c) the lesser pipe
Horizontal position locating for horizontal plane is halved up and down lower than expansion chamber (1a) along locating horizontal position on mouth.
7. dust high-efficiency dust removal system according to claim 5, it is characterised in that described escape pipe (1d) the lesser pipe
Horizontal position locating for horizontal plane is halved up and down lower than expansion chamber (1a) along locating horizontal position on mouth.
8. dust high-efficiency dust removal system according to claim 1, it is characterised in that the exhaust dust device with bag (2) includes
Shell (2a), filter bag install orifice plate (2b), filter bag (2c), pulse of compressed air jet pipe (2d), and the bottom the shell (2a) is in
Taper, conical lower portion side is equipped with air inlet, the lower end of conical lower portion is equipped with dust mouth (2e), and air inlet passes through pipeline and preliminary sedimentation
The outlet side of falling unit (1) connects, and filter bag installation orifice plate (2b) is horizontally placed on the top in shell (2a), by shell
It is divided into upper layer and lower layer space in (2a), upper space is air-purifying chamber, and lower layer space is dust and gas room, and the filter bag (2c) is located at dirt
In gas chamber, the filter bag upper end (2c) is connect with the mounting hole of filter bag installation orifice plate (2b), the pulse of compressed air spray
Pipe (2d) has multiple, a corresponding pulse of compressed air jet pipe (2d) above each row's filter bag (2c), and pulse of compressed air jet pipe
The Venturi tube being arranged in the puff prot of the bottom (2d) and the upper end filter bag (2c) corresponds, the pulse of compressed air jet pipe
(2d) is connect by flexible pipe (2f) with the feeder of shell (2a) outside, is sloped downwardly and is provided with outside the shell (2a)
Cylinder (2g), cylinder (2g) and pulse of compressed air jet pipe (2d) are corresponded, and the piston rod of cylinder (2g) passes through shell (2a)
It is articulated and connected with the top of pulse of compressed air jet pipe (2d), the cylinder (2g) is set outside opposite other side shell (2a)
There is dust-separation mechanism accommodating chamber (2h), is equipped with dust-separation mechanism in the dust-separation mechanism accommodating chamber (2h), each row's filter bag (2c) is right
A dust-separation mechanism is answered, the dust-separation mechanism includes dust-proof plate (2i), lead screw motor (2j), and one end of dust-proof plate (2i) passes through shell
Body (2a) and ride upon filter bag installation orifice plate (2b) on, the sliding block being arranged on the other end and lead screw motor (2j) screw rod is connect, institute
The air-purifying chamber side surface upper part stated is equipped with net gas discharge outlet (2k).
9. dust high-efficiency dust removal system according to claim 8, it is characterised in that the top in the air-purifying chamber is equipped with
It positions orifice plate (2l), bag taking hole, the through-hole of the positioning orifice plate (2l), shell (2a) top is equipped at the top of the shell (2a)
Portion bag taking hole, the mounting hole of filter bag installation orifice plate (2b) are corresponding, and described upper end filter bag (2c) is arranged with sealing ring, sealing
Circle and the mounting hole of filter bag installation orifice plate (2b) are in close contact, and the bag taking hole is threaded with capping (2m), vertical bar (2n)
One end and capping (2m) bottom margin consolidate, the other end and filter bag (2c) upper end-face edge consolidate, vertical bar (2n) at least there are two
And be oppositely arranged, the vertical bar (2n) is installed with position-arresting disk (2o), and position-arresting disk (2o) is located in the through-hole of positioning orifice plate.
10. a kind of technique of the dust high-efficiency dust removal system any according to claim 1 ~ 9, it is characterised in that first by dust
Air-flow is collected and fed into pre- sedimentation device by each dust region and is settled in advance, is more than 50 μm of large dust particle by partial size
It isolates and collects from dust air-flow；It is sent into exhaust dust device with bag by the dust air-flow that settles that treated in advance and carries out pulse
Bag-type dusting, net gas direct emission；The dust and large dust particle obtained through pulse bag-type dust-removing is sent into simultaneously stores ash cellar storage；
Atomized water spray is carried out to the dust being discharged into discharge bin again and is stirred continuously 1 ~ 30min；Then again entrucking outward transport before to dust into
Row foam sprinkling processing.
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| CN201910112490.7A CN109675396B (en) | 2019-02-13 | 2019-02-13 | Efficient dust removal system and process |
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| CN113952797A (en) * | 2021-11-12 | 2022-01-21 | 重庆梦姿蓝科技有限公司 | Environment-friendly filter bag frame |
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