CN109381933A - A kind of cleaner and equipment operation method applied to steel rolling line reversable mill - Google Patents

A kind of cleaner and equipment operation method applied to steel rolling line reversable mill Download PDF

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Publication number
CN109381933A
CN109381933A CN201811578740.8A CN201811578740A CN109381933A CN 109381933 A CN109381933 A CN 109381933A CN 201811578740 A CN201811578740 A CN 201811578740A CN 109381933 A CN109381933 A CN 109381933A
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CN
China
Prior art keywords
dust
air
valve
filter bag
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811578740.8A
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Chinese (zh)
Inventor
卢健儿
俞国红
姚凌飞
张键
孟俊
郑重
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Dongfangyuan Environmental Technology Co Ltd
YONGXING SPECIAL STAINLESS STEEL CO Ltd
Original Assignee
Nanjing Dongfangyuan Environmental Technology Co Ltd
YONGXING SPECIAL STAINLESS STEEL CO Ltd
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Application filed by Nanjing Dongfangyuan Environmental Technology Co Ltd, YONGXING SPECIAL STAINLESS STEEL CO Ltd filed Critical Nanjing Dongfangyuan Environmental Technology Co Ltd
Priority to CN201811578740.8A priority Critical patent/CN109381933A/en
Publication of CN109381933A publication Critical patent/CN109381933A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04—Cleaning filters
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention belongs to steel rolling fields, and in particular to a kind of cleaner and equipment operation method applied to steel rolling line reversable mill.Including the dust excluding hood and dust-extraction unit being connected by air hose, the dust-extraction unit includes at least four dedusters, the deduster is from top to bottom successively arranged net gas storehouse, dirt pocket and ash bucket, it is separated between the net gas storehouse and the dirt pocket by flowering baffle, the a plurality of columnar filter bag propped up by frame is furnished under the card, it is connected above the filter bag with the net gas storehouse, the deashing component for from top to bottom being blowed and sprayed deashing to filter bag is additionally provided in the net gas storehouse.The deduster of the application is compact-sized and i.e. independent and is associated with, being recycled between deduster can respectively be dusted, deashing, air-dry three condition circulation, by reasonably cooperation equipment can be dusted incessantly simultaneously, it can guarantee that equipment effectively safeguards operating again, not only substantially increase dust removing effects and efficiency of dust collection, it is again at low cost simultaneously, it takes up space small.

Description

A kind of cleaner and equipment operation method applied to steel rolling line reversable mill
Technical field
The invention belongs to steel rolling fields, and in particular to a kind of cleaner and equipment fortune applied to steel rolling line reversable mill Make method.
Background technique
In the material deformation process that hot rolling produces, the iron scale of steel surface can fall off to form solid granular steel Dust.The especially dedicated reversable mill of specialty alloy materials has the characteristics that rolling linear velocity is fast, material deflection is big, institute It is bigger with iron scale dust formation during reversible rolling.Again because the needs of cooling roll, milling equipment can be right Roll and steel billet keep water-spraying control, form a large amount of steam and mix with solid dust and drift.
Rolling dust brings great negative effect to everyways such as workshop condition, personnel health, corrective maintenances.But mesh It is preceding still without effective cleaner, the aqueous dust of reversable mill can continuously and effectively be collected.Conventional cloth-bag type Deduster can not handle aqueous dust, it is easy to the phenomenon that dust agglomerations blocking is formed at cloth bag；The trapping mouth of conventional dust removal It is generally fixed or mobile with equipment by hose connection, it is not able to satisfy the space requirement of reversable mill roll change maintenance.
Summary of the invention
The purpose of the present invention is provide a kind of cleaner applied to steel rolling line reversable mill regarding to the issue above and set Standby operation method.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of cleaner applied to steel rolling line reversable mill, including the dust excluding hood and dust-extraction unit being connected by air hose, The dust-extraction unit includes at least four dedusters, and the deduster is from top to bottom successively arranged net gas storehouse, dirt pocket and ash bucket, Separated between the net gas storehouse and the dirt pocket by flowering baffle, be furnished under the card it is a plurality of propped up by frame it is columnar Filter bag is connected above the filter bag with the net gas storehouse, be additionally provided in the net gas storehouse for filter bag progress by up to Under blow and spray the deashing component of deashing；Each deduster is separately connected with air hose, and the net gas storehouse of all dust remover roofs communicates, Be designed with outside each deduster one purified for controlling deduster, deashing or air-dried triple valve.
Preferably, the deduster includes being set to the air inlet of dirt pocket lower part and being connected to passing through for the net gas storehouse Blower carries out the discharge pipe of exhausting, and the deduster encloses four set to be adjoint, and the center of four dedusters is equipped with and supplies four The shared discharge pipe of deduster.
Preferably, the discharge pipe lower end stretches out the deduster and is connected with blower on the part stretched out, it is described go out Air hose is the rounded air hose in section.
Preferably, the deashing component includes the pulse valve positioned at net gas storehouse one end, connection pulse valve and is set to described Only the pulse tube in gas storehouse, the pulse branch pipe for being arranged on the pulse tube and being arranged in a one-to-one correspondence with filter bag top, the arteries and veins Washing pipe is parallel to the flowering baffle frame in the net gas storehouse, and the net gas storehouse is equipped with the deashing component of multiple groups parallel arrangement.
Preferably, in the dirt pocket air inlet to the lower end of the filter bag part be press settling section, it is described into Air port is equipped with the gauze for sloughing bulky grain steam, and the air inlet is arranged higher than the ash bucket, and the gauze is set to institute It states and is located at the indoor inside of the dedusting on air inlet.
It is dirt pocket below net gas storehouse, is separated between (also referred to as ontology) bag house and net gas storehouse by flowering baffle, flower Plate is used to hang filter bag, and filter bag is cylinder, is fixed using elastic ring gasket with card, there is frame inside filter bag.Ontology Lower section is air inlet, has one section of space in the lower end on air inlet top to filter bag, is to press settling section, flue gas flow rate can be made to drop It is low, stable, it is evenly distributed, the dust of larger particles under gravity, is directly fallen into ash bucket, and the filtering for mitigating filter bag is negative Lotus.
Preferably, the air inlet is equipped with gauze frame, the section bottom being located on the inside of air inlet on the gauze frame Hollow out is fallen into ash bucket convenient for water of the product on gauze, and the position that the air inlet is corresponded on the air hose is removably equipped with behaviour Make window.It enters the wind inlet and is equipped with gauze, filter bulky grain steam in flue dust, reduce the adhesion amount of water on filter bag
Preferably, the triple valve includes tool there are three the valve body and spool of port, three ports are respectively to access cigarette The smoke inlet of gas, the deduster interface for being connected to dirt pocket air inlet and for carrying out air-dried air intake, institute to dirt pocket It states smoke inlet and the air intake is coaxially disposed, the deduster interface enters perpendicular to the smoke inlet and the air Mouth setting, the spool are back and forth connected in the channel to be formed in the smoke inlet with the air intake.
The air intake of triple valve can be passed through the outside air sucked in the indoor filter bag of dedusting is carried out it is air-dried.
The air-dried of deduster, deashing, purification function are realized with triple valve, and spool is double plate valve cores, the specific work of triple valve Position and purpose achieved (seeing attached drawing 10.11.12 as follows):
The next at purification state-spool, flue gas is discharged after entering dirt pocket purification.
Position at deashing state-spool, this dirt pocket are in off-line state, pulse jetting deashing.
Upper at air dried condition-spool, air enters dirt pocket, air-dries to cloth bag.
Preferably, the air hose includes the fixed air duct being hinged and rotating air-duct, the fixed air duct is removed with described The connection of dirt device, the rotating air-duct are connect with the dust excluding hood；The dust excluding hood is be respectively arranged on milling train outlet and entrance two A dust excluding hood, the fixed air duct include sequentially connected two receptions that two dust excluding hoods are separately connected by rotating air-duct Four feeding branch pipes of pipe, the collecting pipe of two reception pipes of connection and each deduster that connects one to one, the triple valve are set In in the feeding branch pipe.Inlet of rolling mill, the outlet each cover in two sides, flue gas trapping rate are high.
Preferably, the cinder-discharging port of the hopper bottom of four dedusters is converged two-by-two by pipeline, the deduster Top be equipped with silo roof cover board.The top of deduster is net gas storehouse, (also referred to as upper box), has silo roof cover board on top, for into Enter changing in bag cover in the net gas storehouse of deduster and is overhauled and replaced filter bag.
Preferably, two sides are respectively provided with a pulse vavle shelf storehouse at the top of the dust-extraction unit, the pulse valve is set to described On pulse vavle shelf storehouse and the pulse valve is connect by the bend pipe being located in pulse vavle shelf storehouse with the pulse tube in the net gas storehouse.
A kind of operation method of cleaner as described above, includes the following steps:
One, starting up, start-up course include: that triple valve all switches to the station that purification station i.e. flue gas can be passed through dirt pocket And blower starting；
Two, the 1-4 triple valve for the number of finishing is subjected to circulation action after start completion, specially No. 1 three-position valve is carried out first Switch of working position movement, Switch of working position movement, which includes: the first step, to be switched to air-dried station for No. 1 triple valve and is sent into sky to dirt pocket Gas carry out it is air-dried, air-dry 1-10 minutes, No. 1 three-position valve of second step switches to deashing station i.e. dirt pocket offline by deashing dirt component Jetting deashing carried out to filter bag in dirt pocket, deashing 1-5 minute, third step three-position valve, which switches to, to be purified station and carry out flue gas and send Enter dirt pocket purification；No. 1 three-position valve complete successively to go to after a Switch of working position movement three-position valves of 2,3, No. 4 dirt pockets into Row Switch of working position movement, so that 1-4 three-position valve carries out circulation action in cycles；
Three, system stops: 4 three-position valves switch to air-dried station simultaneously, and blower is delayed 2-10 minutes, three-position valve after blower stops Deashing station all is switched to, deashing is carried out to the indoor filter bag of dedusting, stopping process is completed after the completion of deashing.
Preferably, multiple deashing dirt components in net gas storehouse on each deduster circuit sequentially unlatching, i.e. arteries and veins It rushes valve and takes turns starting and deashing is carried out respectively to the filter bag on this group of flowering baffle；When some three-position valve or dedusting in the step 2 When device is in malfunction, step 2 process skips the failure deduster being related to, and goes to next deduster and carries out normal circulation Movement.
In conclusion the invention has the following advantages:
1, ash-laden gas enters in deduster through dust excluding hood, that is, nearly dirt source rotating collection cover, effect of the larger particles dust in gravity Under, it being deposited in ash bucket, molecule dust is upward with air-flow, and is blocked in outside filter bag, after flue gas is purified by filter bag, The net gas storehouse at top is reached, then the discharge pipe from deduster center is downward, is discharged by the main air blower of dust pelletizing system.By one section After the operation of time, the dust stratification of filter bag outer surface increases, and the running resistance of deduster is caused to rise.When resistance rises to setting When upper limit value, start deashing, threeway valve core is mobile, and flue gas does not enter back into the dirt pocket, this deduster is using off-line ash-clearing Mode, deduster is controlled by triple valve realizes four storehouse independent operatings, and triple valve is in offline position filter bag and is in not filtration condition, In the hope of reaching good ash-removal effect.Pulse valve, which is opened, sprays into gas, filter bag rapid expansion, filter bag table from filter pocket mouths through injection tube The dust in face is shaken off down, and lower taper ash bucket is fallen into.The application endless form ensure that there is three always under normal circumstances A dirt pocket is carrying out purifying and dedusting, and work efficiency is high, even if wherein one or two dirt pocket breaks down, also can guarantee two An a or dirt pocket carries out purifying and dedusting.Dedusting is uninterrupted, sustainable that dedusting is effectively performed.
2, the application structure is simple, dust collecting effect is good, and safeguards convenient for milling train.The deduster of the application is compact-sized and is Independent to be associated with again, being recycled between deduster can respectively be dusted, deashing, air-dry three condition circulation, while by reasonable Equipment can be dusted incessantly for cooperation, and can guarantee that equipment effectively safeguards operating, not only substantially increases dust removing effects And efficiency of dust collection, while it is again at low cost, it takes up space small.
3, rotatable dust excluding hood is also convenient for the maintenance of the handling of roll, equipment.
Detailed description of the invention
Fig. 1 is the application structural schematic diagram；
Fig. 2 is dust-extraction unit structural schematic diagram one；
Fig. 3 is dust-extraction unit structural schematic diagram two；
Fig. 4 is dust-extraction unit structural schematic diagram three；
Fig. 5 is net gas storehouse structural schematic diagram one；
Fig. 6 is net gas storehouse structural schematic diagram two；
Fig. 7 is net gas storehouse structural schematic diagram three；
Fig. 8 is net gas storehouse structural schematic diagram four；
Fig. 9 is the application equipment operational structures schematic diagram；
Figure 10 is air dried condition triple valve structural schematic diagram；
Figure 11 is deashing state triple valve structural schematic diagram；
Figure 12 is purification state triple valve structural schematic diagram.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.
Cleaner embodiment one:
A kind of cleaner applied to steel rolling line reversable mill, including the dust excluding hood 1 being connected by air hose and dust-extraction unit 2, the dust-extraction unit includes at least four dedusters, and the deduster is from top to bottom successively arranged net gas storehouse 21, dirt pocket 22 With ash bucket 23, is separated, be furnished under the card a plurality of by frame by flowering baffle 24 between the net gas storehouse and the dirt pocket The columnar filter bag 25 propped up is connected above the filter bag with the net gas storehouse, is additionally provided with and is used for pair in the net gas storehouse Filter bag is from top to bottom blowed and sprayed the deashing component of deashing；Each deduster is separately connected with air hose, and all deduster tops The net gas storehouse in portion communicates, be designed with outside each deduster one purified for controlling deduster, deashing or air-dried threeway Valve.
The deduster includes being set to the air inlet of dirt pocket lower part and being connected to carrying out by blower for the net gas storehouse The discharge pipe 4 of exhausting, the deduster encloses four set to be adjoint, and the center of four dedusters is equipped with and is total to for four dedusters Discharge pipe.The discharge pipe lower end stretch out the deduster and stretch out part on be connected with blower 6, the discharge pipe is The rounded air hose in section.Discharge pipe is set to the center of dust-extraction unit, and only top is connected to outlet air with net gas storehouse, and discharge pipe lower end is worn Out dust-extraction unit and by pipeline outward draw connection blower outlet air.
Embodiment two:
Unlike the embodiments above be in the deashing component includes pulse valve 51, the connection pulse valve positioned at net gas storehouse one end And the pulse tube 52 being set in the net gas storehouse, the pulse for being arranged on the pulse tube and being arranged in a one-to-one correspondence with filter bag top Branch pipe 53, the pulse tube are parallel to the flowering baffle frame in the net gas storehouse, and the net gas storehouse is equipped with multiple groups parallel The deashing component of cloth.Pulse valve connects pulse gas bag, when starting deashing, gas in pulse gas bag by pulse valve, pulse tube, Pulse branch pipe is to filter-bag blowing.
Embodiment three:
The part unlike the embodiments above for being in lower end of the air inlet to the filter bag in the dirt pocket is equal sink drop Section 221, the air inlet are equipped with the gauze 222 for sloughing bulky grain steam, and the air inlet is arranged higher than the ash bucket, The gauze, which is set on the air inlet, is located at the indoor inside of the dedusting.
It is dirt pocket below net gas storehouse, is separated between (also referred to as ontology) bag house and net gas storehouse by flowering baffle, flower Plate is used to hang filter bag, and filter bag is cylinder, is fixed using elastic ring gasket with card, there is frame inside filter bag.Ontology Lower section is air inlet, has one section of space in the lower end on air inlet top to filter bag, is to press settling section, flue gas flow rate can be made to drop It is low, stable, it is evenly distributed, the dust of larger particles under gravity, is directly fallen into ash bucket, and the filtering for mitigating filter bag is negative Lotus.
The air inlet is equipped with gauze frame, and the section bottom hollow out on the inside of air inlet is located on the gauze frame convenient for product Water on gauze is fallen into ash bucket, and the position that the air inlet is corresponded on the air hose is removably equipped with action pane 33. It enters the wind inlet and is equipped with gauze, filter bulky grain steam in flue dust, reduce the adhesion amount of water on filter bag
Example IV:
Unlike the embodiments above be in the triple valve includes tool there are three the valve body and spool 64 of port, and described three logical Mouth is respectively the smoke inlet 61 of access flue gas, the deduster interface 62 for being connected to dirt pocket air inlet and is used for dirt pocket progress Air-dried air intake 63, the smoke inlet and the air intake are coaxially disposed, and the deduster interface is perpendicular to described Smoke inlet and the air intake be arranged, and the spool back and forth is connected to be formed with the air intake in the smoke inlet In channel.The air intake conduit connectable of triple valve is passed through the outside air sucked in and carries out wind to the indoor filter bag of dedusting It is dry.The spool is the double plate valve cores for being respectively equipped with a sealing plate above and below.
The air-dried of deduster, deashing, purification function are realized with triple valve, and spool is double plate valve cores, the specific work of triple valve Position and purpose achieved (seeing attached drawing 10.11.12 as follows):
The next at purification state-spool, flue gas is discharged after entering dirt pocket purification.
Position at deashing state-spool, this dirt pocket are in off-line state, pulse jetting deashing.
Upper at air dried condition-spool, air enters dirt pocket, air-dries to cloth bag.
The air hose includes the fixed air duct being hinged and rotating air-duct 32, and the fixed air duct and the deduster connect It connects, the rotating air-duct is connect with the dust excluding hood；The dust excluding hood is two dedustings for being respectively arranged on milling train outlet and entrance Cover, the fixed air duct include sequentially connected two reception pipes 311, the company that two dust excluding hoods are separately connected by rotating air-duct Four feeding branch pipes 313 of the collecting pipe 312 of two reception pipes and each deduster that connects one to one are connect, the triple valve is set In in the feeding branch pipe.Inlet of rolling mill, the outlet each cover in two sides, flue gas trapping rate are high.
Embodiment five:
The cinder-discharging port unlike the embodiments above being in the hopper bottom of four dedusters is converged two-by-two by pipeline, institute The top for stating deduster is equipped with silo roof cover board 7.The top of deduster is net gas storehouse, (also referred to as upper box), has silo roof lid on top Plate, for being overhauled and being replaced filter bag into changing in bag cover in the net gas storehouse of deduster.The hopper bottom of four dedusters Two outlets can also be converged again to final remittance to a shared pipeline after converging two-by-two, move ash in order to load and unload.Purification and In deashing process, the dust and water removed or deposited, into ash bucket, the gate valve on cinder-discharging port is opened i.e. detachable Ash.
Embodiment six:
Unlike the embodiments above be in is respectively provided with a pulse vavle shelf storehouse 54, the pulse in dust-extraction unit top two sides Valve is set on pulse vavle shelf storehouse and the pulse valve passes through in the bend pipe being located in pulse vavle shelf storehouse and the net gas storehouse Pulse tube connection.
Ash-laden gas enters in deduster through dust excluding hood, that is, nearly dirt source rotating collection cover, work of the larger particles dust in gravity It under, is deposited in ash bucket, molecule dust is upward with air-flow, and is blocked in outside filter bag, and flue gas is purified by filter bag Afterwards, the net gas storehouse at top is reached, then the discharge pipe from deduster center is downward, is discharged by the main air blower of dust pelletizing system.By After the operation of a period of time, the dust stratification of filter bag outer surface increases, and the running resistance of deduster is caused to rise.It is set when resistance rises to When fixed upper limit value, start deashing, threeway valve core is mobile, and flue gas does not enter back into the dirt pocket, this deduster is using offline clear The mode of ash, deduster is controlled by triple valve realizes four storehouse independent operatings, and triple valve be in offline position filter bag in not filtering State, in the hope of reaching good ash-removal effect.Pulse valve open through injection tube from filter pocket mouths spray into gas, filter bag rapid expansion, The dust of filter bag surface is shaken off down, and lower taper ash bucket is fallen into.
A kind of operation method embodiment one of cleaner as described above:
Include the following steps:
One, starting up, start-up course include: that triple valve all switches to the station that purification station i.e. flue gas can be passed through dirt pocket And blower starting；
Two, the 1-4 triple valve for the number of finishing is subjected to circulation action after start completion, specially No. 1 three-position valve is carried out first Switch of working position movement, Switch of working position movement, which includes: the first step, to be switched to air-dried station for No. 1 triple valve and is sent into sky to dirt pocket Gas carry out it is air-dried, air-dry 1 minute, No. 1 three-position valve of second step switches to deashing station i.e. dirt pocket offline by deashing dirt component pair In dirt pocket filter bag carry out jetting deashing, deashing 1 minute, third step three-position valve switch to purification station carry out flue gas be sent into remove The purification of dirt room；No. 1 three-position valve completes the three-position valve that a Switch of working position movement successively goes to 2,3, No. 4 dirt pockets later and carries out work Position switching action, so that 1-4 three-position valve carries out circulation action in cycles；Above-mentioned endless form ensure that in positive reason There are three dirt pockets to carry out purifying and dedusting always under condition, and work efficiency is high, even if event occurs for wherein one or two dirt pocket Barrier also can guarantee two or a dirt pocket progress purifying and dedusting.Dedusting is uninterrupted, sustainable that dedusting is effectively performed.
Three, system stops: 4 three-position valves switch to air-dried station simultaneously, and blower is delayed 2 minutes, three after blower stopping Valve all switches to deashing station, carries out deashing to the indoor filter bag of dedusting, stopping process is completed after the completion of deashing.
When two dust excluding hoods are when operating position is not in milling train outlet and entrance, four three-position valves switch to air-dried Station.
Multiple deashing dirt components in net gas storehouse on each deduster circuit sequentially unlatching, i.e., pulse valve opens in turn It is dynamic that deashing is carried out respectively to the filter bag on this group of flowering baffle, if the pulse valve on each deduster runs will certainly allow phase simultaneously It is generated when the filter bag ash removal of neighbour and collides interference, ash-removal effect can also reduce, therefore use and take turns starting, to guarantee that deduster energy is steady Surely it operates under low resistive state, and improves cleaning efficiency and effect.In the present embodiment, 6 seconds pulse valve blowing interval times (when Between it is adjustable).
In the step 2 when some three-position valve or deduster are in malfunction, step 2 process, which is skipped, to be related to Failure deduster goes to next deduster and carries out normal circulation movement.
Embodiment two:
It is unlike the embodiments above be in the first step by No. 1 triple valve switch to air-dried station i.e. to dirt pocket be sent into air into Row air-dries, and air-dries 2 minutes, No. 1 three-position valve of second step switches to deashing station i.e. dirt pocket offline by deashing dirt component to dedusting Indoor filter bag carries out jetting deashing, and deashing 2 minutes, third step three-position valve switched to purification station and carries out flue gas feeding dirt pocket Purification.System stops: 4 three-position valves switch to air-dried station simultaneously, and blower is delayed 3 minutes.In the present embodiment,
Embodiment three:
It is unlike the embodiments above be in the first step by No. 1 triple valve switch to air-dried station i.e. to dirt pocket be sent into air into Row air-dries, and air-dries 10 minutes, No. 1 three-position valve of second step switches to deashing station i.e. dirt pocket offline by deashing dirt component to dedusting Indoor filter bag carries out jetting deashing, and deashing 5 minutes, third step three-position valve switched to purification station and carries out flue gas feeding dirt pocket Purification；System stops: 4 three-position valves switch to air-dried station simultaneously, and blower is delayed 10 minutes.
The application structure is simple, dust collecting effect is good, and safeguards convenient for milling train.The deduster of the application is compact-sized and i.e. only Vertical to be associated with again, being recycled between deduster can respectively be dusted, deashing, air-dry three condition circulation, while by reasonably matching Equipment can be dusted incessantly for conjunction, and can guarantee that equipment effectively safeguards operating, not only substantially increase dust removing effects and Efficiency of dust collection, at the same it is again at low cost, it takes up space small.

Claims (10)

1.一种应用于轧钢线可逆轧机的除尘设备，其特征在于：包括通过风管相连接的除尘罩（1）和除尘装置（2），所述除尘装置至少包括四个除尘器，所述除尘器由上至下依次设有净气仓（21）、除尘室（22）和灰斗（23），所述净气仓与所述除尘室之间通过花隔板（24）隔开，所述花板下布有多条由框架撑起的柱状的滤袋（25），所述滤袋上方与所述净气仓相通连接，所述净气仓内还设有用于对滤袋进行由上至下吹喷清灰的清灰部件；每个除尘器都与风管分别连接，且所有除尘器顶部的净气仓相通，每个除尘器外都设有一个用于控制除尘器进行净化、清灰或风干的三通阀。1. A dedusting device applied to a reversible rolling mill of a steel rolling line, characterized in that it comprises a dedusting hood (1) and a dedusting device (2) connected by an air duct, and the dedusting device includes at least four dedusters, and the dedusting device includes at least four dedusting devices. The dust collector is provided with a clean air bin (21), a dust chamber (22) and an ash hopper (23) in sequence from top to bottom, and the clean air bin and the dust chamber are separated by a flower partition (24). There are a plurality of columnar filter bags (25) supported by the frame under the flower plate, the upper part of the filter bag is communicated with the clean air silo, and the clean air silo is also provided with a filter bag for cleaning the filter bag. The dust cleaning components are sprayed from top to bottom; each dust collector is separately connected to the air duct, and the clean air chambers on the top of all dust collectors are connected. Three-way valve for cleaning, dedusting or air drying. 2.根据权利要求1所述一种应用于轧钢线可逆轧机的除尘设备，其特征在于：所述除尘器包括设于除尘室下部的进风口和连通于所述净气仓的通过风机进行抽风的出风管（4），所述除尘器为相挨围设的四个，且四个除尘器的中心设有供四个除尘器共用的出风管。2. A dedusting device applied to a reversing rolling mill of a steel rolling line according to claim 1, wherein the dedusting device comprises an air inlet set at the lower part of the dedusting chamber and a fan connected to the clean air chamber for air extraction There are four air outlet pipes (4), the dust collectors are four adjacent to each other, and the center of the four dust collectors is provided with an air outlet pipe shared by the four dust collectors. 3.根据权利要求2所述一种应用于轧钢线可逆轧机的除尘设备，其特征在于：所述出风管下端伸出所述除尘器且伸出的部分上连接有风机（6），所述出风管为截面呈圆形的风管。3. A dust removal device applied to a reversing rolling mill of a steel rolling line according to claim 2, characterized in that: the lower end of the air outlet pipe extends out of the dust collector, and a fan (6) is connected to the extended part, so The air duct is described as an air duct with a circular cross section. 4.根据权利要求2所述一种应用于轧钢线可逆轧机的除尘设备，其特征在于：所述清灰部件包括位于净气仓一端的脉冲阀（51）、连接脉冲阀且设于所述净气仓内的脉冲管（52）、排布于所述脉冲管上且与滤袋上方一一对应设置的脉冲支管（53），所述脉冲管平行于所述花隔板架于所述净气仓内，所述净气仓上设有多组平行排布的清灰部件。4. A dedusting device applied to a reversing rolling mill of a steel rolling line according to claim 2, characterized in that: the dust cleaning component comprises a pulse valve (51) located at one end of the clean air bin, a pulse valve connected to the The pulse tube (52) in the clean air chamber, and the pulse branch tubes (53) arranged on the pulse tube and arranged in a one-to-one correspondence with the top of the filter bag, the pulse tube is parallel to the flower baffle and supported on the In the clean air silo, a plurality of groups of ash cleaning components arranged in parallel are arranged on the clean air silo. 5.根据权利要求2所述一种应用于轧钢线可逆轧机的除尘设备，其特征在于：所述除尘室中进风口至所述滤袋的下端的部分为均压沉降段（221），所述进风口上设有用于脱去大颗粒水汽的纱网（222），所述进风口高于所述灰斗设置，所述纱网设于所述进风口上位于所述除尘室内的内侧。5. A dedusting device applied to a reversing mill of a steel rolling line according to claim 2, characterized in that: the part from the air inlet to the lower end of the filter bag in the dedusting chamber is a pressure equalization sedimentation section (221), so The air inlet is provided with a gauze (222) for removing large particles of water vapor, the air inlet is arranged higher than the ash hopper, and the gauze is arranged on the air inlet and located inside the dust removal chamber. 6.根据权利要求5所述一种应用于轧钢线可逆轧机的除尘设备，其特征在于：所述进风口上设有纱网架，所述纱网架上位于进风口内侧的部分底部镂空便于积在纱网上的水落入灰斗中，所述风管上对应所述进风口的位置可拆卸地设有操作窗口（33）。6. A dust removal device applied to a reversing rolling mill of a steel rolling line according to claim 5, characterized in that: the air inlet is provided with a gauze frame, and the part of the bottom of the gauze frame located inside the air inlet is hollowed out for convenience. The water accumulated on the gauze falls into the ash hopper, and an operation window (33) is detachably provided on the air duct at a position corresponding to the air inlet. 7.根据权利要求2所述一种应用于轧钢线可逆轧机的除尘设备，其特征在于：所述三通阀包括具有三个通口的阀体和阀芯（64），所述三个通口分别为接入烟气的烟气入口（61）、连通除尘室进风口的除尘器接口（62）和用于对除尘室进行风干的空气入口（63），所述烟气入口与所述空气入口同轴设置，所述除尘器接口垂直于所述烟气入口与所述空气入口设置，所述阀芯往复于所述烟气入口与所述空气入口连通形成的通道内。7. The dust removal device applied to a reversing rolling mill of a steel rolling line according to claim 2, wherein the three-way valve comprises a valve body and a valve core (64) with three ports, and the three-way valve comprises a valve body and a valve core (64). The ports are respectively a flue gas inlet (61) connected to the flue gas, a dust collector interface (62) connected to the air inlet of the dust chamber, and an air inlet (63) used for drying the dust chamber. The air inlet is arranged coaxially, the dust collector interface is arranged perpendicular to the flue gas inlet and the air inlet, and the valve core reciprocates in the channel formed by the communication between the flue gas inlet and the air inlet. 8.根据权利要求7所述一种应用于轧钢线可逆轧机的除尘设备，其特征在于：所述风管包括相铰接的固定风管和旋转风管（32），所述固定风管与所述除尘器连接，所述旋转风管与所述除尘罩连接；所述除尘罩为分别设于轧机出口和入口的两个除尘罩，所述固定风管包括依次连接的通过旋转风管分别连接两个除尘罩的两个接收管（311）、连接两个接收管的汇流管（312）和一一对应连接每个除尘器的四个送入支管（313），所述三通阀设于所述送入支管内。8. A dedusting device applied to a reversing mill of a steel rolling line according to claim 7, wherein the air duct comprises a hinged fixed air duct and a rotating air duct (32), and the fixed air duct is connected to the The dust collector is connected, and the rotating air duct is connected with the dust hood; the dust hood is two dust hoods respectively set at the outlet and the inlet of the rolling mill, and the fixed air duct includes sequentially connected through the rotating air duct. The two receiving pipes (311) of the two dust hoods, the converging pipe (312) connecting the two receiving pipes, and the four feeding branch pipes (313) connecting each dust collector in a one-to-one correspondence, the three-way valve is provided in the into the branch pipe. 9.一种根据权利要求4-8任一权利要求所述的除尘设备的运作方法，其特征在于：包括如下步骤：9. A method for operating a dedusting device according to any one of claims 4-8, characterized in that: comprising the steps of: 一、开机启动，启动过程包括：三通阀全部切换至净化工位即烟气可通入除尘室的工位以及风机启动；1. Start-up, the start-up process includes: all three-way valves are switched to the purification station, that is, the station where the flue gas can pass into the dust chamber, and the fan is started; 二、启动完成后将编好号的1-4号三通阀进行循环动作，具体为首先对1号三位阀进行工位切换动作，工位切换动作包括：第一步将1号三通阀切换至风干工位即向除尘室送入空气进行风干，风干1-10分钟，第二步1号三位阀切换至清灰工位即除尘室离线由清灰尘部件对除尘室内滤袋进行喷吹清灰，清灰1-5分钟，第三步三位阀切换至净化工位即进行烟气送入除尘室净化；1号三位阀完成一次工位切换动作之后依次转至2、3、4号除尘室的三位阀进行工位切换动作， 从而1-4号三位阀进行周而复始的循环动作；2. After the start-up is completed, the numbered 1-4 three-way valves will be cycled. Specifically, the first three-way valve No. 1 will be switched. The station switching actions include: the first step will be the No. 1 three-way valve. The valve is switched to the air-drying station, that is, air is fed into the dust chamber for air-drying, and air-drying for 1-10 minutes. In the second step, the No. 1 three-position valve is switched to the dust-cleaning station, that is, the dust-removing chamber is offline. Blow and clean the dust for 1-5 minutes. In the third step, the three-position valve is switched to the purification station, and the flue gas is sent to the dust chamber for purification; after the No. 1 three-position valve has completed one station switching action, go to 2. The three-position valve of No. 3 and No. 4 dust removal chambers perform station switching action, so that No. 1-4 three-position valves carry out a cycle action over and over again; 三、系统停止：4个三位阀同时切换至风干工位，风机延时2-10分钟，风机停止后三位阀全部切换至清灰工位，对除尘室内的滤袋进行清灰，清灰完成后停机过程完成。3. System stop: 4 three-position valves are switched to the air-drying station at the same time, and the fan delays for 2-10 minutes. After the fan stops, all three-position valves are switched to the cleaning station, and the filter bags in the dust removal chamber are cleaned and cleaned. The shutdown process is completed after the ash is completed. 10.根据权利要求9所述一种除尘设备的运作方法，其特征在于：每个所述除尘器上的净气仓内的多个清灰尘部件依次循环开启，即脉冲阀轮流启动对该组花隔板上的滤袋分别进行清灰；所述步骤二中当某一个三位阀或除尘器处于故障状态时，步骤二流程跳过涉及的故障除尘器，转至下一个除尘器进行正常循环动作。10. The operation method of a dedusting device according to claim 9, characterized in that: a plurality of dust-removing components in the clean air silo on each of the dust collectors are sequentially opened in a cycle, that is, the pulse valves are activated in turn for the group. The filter bags on the flower clapboard are cleaned respectively; in the second step, when a certain three-position valve or dust collector is in a faulty state, the step two process skips the faulty dust collector involved, and transfers to the next dust collector for normal operation. Loop action.
CN201811578740.8A 2018-12-24 2018-12-24 A kind of cleaner and equipment operation method applied to steel rolling line reversable mill Pending CN109381933A (en)

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