CN107694251A - The ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths - Google Patents

The ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths Download PDF

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Publication number
CN107694251A
CN107694251A CN201711145810.6A CN201711145810A CN107694251A CN 107694251 A CN107694251 A CN 107694251A CN 201711145810 A CN201711145810 A CN 201711145810A CN 107694251 A CN107694251 A CN 107694251A
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CN
China
Prior art keywords
screen cloths
lockset
chain
desulfurization
screen
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CN201711145810.6A
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Chinese (zh)
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秦光
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Individual
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Priority to CN201711145810.6A priority Critical patent/CN107694251A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D49/00Separating dispersed particles from gases, air or vapours by other methods

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

Abstract

The present invention relates to the technical field of flue gas purifying equipment, more particularly to a kind of ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths.It is main to include rotating flexible 3D screen cloths adsorbent bed, the devices such as cleaning, mechanical seal that spray water with high pressure composition.The flue gas that desulfurizing tower is drawn, during by rotary type flexible 3D screen cloth adsorbent beds, physical absorption collection circularly is carried out for the droplet of the particle diameter of PM5~15 using its loose structure, while cleaned in purge chamber using high pressure water spray gun sustained firing, drain into water system.Present invention employs the adsorbent bed structure that advanced continuous all standing rotation is flexible, fouling is efficiently solved with blocking, and cleaning way is reasonable, applicable, realizes two level and becomes more meticulous demisting.For the particle diameter of PM5~15 droplet absorptive collection efficiency 80~90%, crushing is in 200Pa or so.It is widely used in the wet desulfurization systems such as electric power, metallurgy.

Description

The ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths
Technical field
The invention belongs to filed of flue gas purification, is widely used in the industries such as electric power, metallurgy, chemical industry, building materials.Specifically It is the special equipment for the method progress demisting for rotating flexible 3D screen cloths physical absorption bed by setting after dedusting, desulfurization.
Background technology
Demister is the key equipment in FGD systems, and wet desulfurizing process proposes the requirement of demisting to absorption equipment, if Its operation is bad, actually sulfur dioxide (SO2) emissions into air, while also results in the flaw of blower fan, heat exchanger and flue Dirty and heavy corrosion.
Mist separator of desulfurization and technology have the technical characterstic and weak point of the following aspects now:
1. normal Regulations mist separator of desulfurization(Inertial collision and centrifugal separation)It can be divided into corrugated plating and the basic knot of two kinds of silk screen by construction Structure, either which kind of structure are had the following disadvantages all due to the limitation of mechanism, structure, process etc.:
1.1 demisters set on desulfurizing tower top, are made up of multilayer gas-liquid separation component and water flushing element, due to The reasons such as the structure of demister, cause the air flow method of desulfurizing tower section not uniform enough, so as to produce local stoppages, drop faces Boundary separates grain through becoming big(Typically in 20~30um), gas-liquid separation effect is not ideal enough.
1.2 caused by the technology mode of water rinse-system and structure, and some can be caused to rinse dead angle or rinse and do not filled Point, water flushing water forces down that then effect is poor, then flue gas water content is big for hydraulic pressure height, in dilemma.Frequency is rinsed in addition also to be difficult to It is determined that rinsing, interval is small, and developing result is poor, is also easy to produce scale formation, otherwise flue gas water content can be caused to increase(Flue gas during flushing Water amount increases 3~5 times), moment is extremely difficult to 75mg/Nm3 droplet emission request(This measure droplet grain pass through for >= 15um).
1.3 because the operations such as steam generator system, cleaner are fluctuated, and exhaust gas volumn, the dust-laden that can cause entry into desulfurizing tower are dense Degree, the increase of sulfur content, cause the scarce capacity of demister, gas-liquid separation effect degradation.
2. it is not difficult to find out more than:Conventional demister effectively removes particle diameter >=15um droplets and is also possible that for particle diameter≤5um's Droplet gas-liquid separation ability wretched insufficiency, and the various failures on causing due to the defects of its structure demisting and rinsing.For This some desulfurizing item has used fabric filter or electrostatic precipitator, but the former is because resistance is big, rinses difficult, Yi Jie Dirt, easily block, energy consumption is big, property safe and reliable to operation is not high, although the latter's better performances, simultaneously because volume is big, space Greatly, equipment price is expensive, operating cost is high, so what is used in actual applications is few.
3. MIT's Mobile pole plate is the board-like demisting unit knot of chain framework of discontinuous, the non-all standing of representative Structure, because the board-like transmission of the chain framework applied in the industry deposits fault of construction in design as shown in figure 1, the board-like knot of chain framework Structure either connection, the kind of drive be all unsteady state, particularly in upper/lower terminal rotary course when have jam, fall Plate phenomenon, operational reliability be not high.
The content of the invention
A kind of present invention seek to address that drawbacks described above, there is provided ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths.
In order to overcome defect present in background technology, the technical solution adopted for the present invention to solve the technical problems is: Fume desulfurizing tower outlet and end connection of this ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths including front end connection Chimney, it is provided between fume desulfurizing tower outlet and chimney and removes fog chamber and purge chamber, purge chamber is placed in the lower end except fog chamber, demisting The 3D screen cloth adsorbent beds of rotation are provided with room and purge chamber, 3D screen cloth adsorbent beds are turned round in except fog chamber and purge chamber, except fog chamber Junction between purge chamber is provided with mechanically-sealing apparatus, and height is provided with purge chamber, positioned at the both sides of 3D screen cloth adsorbent beds Press cleaning device.
According to another embodiment of the invention, further comprise that the 3D screen cloths adsorbent bed both sides are connected by structure lockset It is connected on the chain and chain-plate of driving chain, the upper end of 3D screen cloth adsorbent beds is provided with driven chain wheel shaft provided with drive sprocket axle, lower end, Drive sprocket axis connection main driving motor.
According to another embodiment of the invention, further comprise that the structure lockset includes structural flexibility lockset and structure Rigid lockset, structural flexibility lockset are interspersed in 3D screen cloth adsorbent beds, and be clamped and connected structural flexibility on the right of structural rigidity lockset Lockset and structural bearing metal grill, the left side of structural rigidity lockset are connected on the chain and chain-plate of driving chain.
According to another embodiment of the invention, the quantity and chain and chain-plate one of the structural rigidity lockset are further comprised One correspondence.
According to another embodiment of the invention, further comprise that the structural rigidity lockset is the distance between adjacent to pass The pitch of dynamic chain.
According to another embodiment of the invention, further comprise that the 3D screen cloths adsorbent bed includes structural bearing wire netting Lattice, metal protecting wire net and 3D screen cloths, 3D screen cloths are connected to the both sides of structural bearing metal grill, the side connection metal shield of 3D screen cloths Net.
The beneficial effects of the invention are as follows:This ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths realizes all standing 3D nets Cloth physical absorption bed structure, relative to the chain framework plank frame that MIT is representative, flow area increase, air-flow It is evenly distributed, demisting efficiency at least improves 20~30%.Structure driven mode is reasonable, light, reliability is higher.Maximum feature is just It is to carry out physical absorption collection demisting suitable for the droplet of PM5-15 particle diameters.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the board-like demisting unit of chain framework in background technology;
Fig. 2 is the structural representation of the present invention;
Fig. 3 is the structural representation of B-B direction in Fig. 2;
Fig. 4 is the structural representation of I parts in Fig. 3;
Fig. 5 be in Fig. 4 C-C to structural representation;
Fig. 6 is the structural representation of the manufacturing equipment of flexible 3D screen cloths absorption bed member 1;
Fig. 7 is Fig. 6 another side structural representation;
Wherein:1st, 3D screen cloths adsorbent bed, 2, mechanically-sealing apparatus, 3, high-pressure cleaning gun, 4, drive sprocket axle, 5, main transmission electricity Machine, 6, driving chain, 7, driven chain wheel shaft, 8, chain and chain-plate, 9, structural rigidity lockset, 10, structural bearing metal grill, 11, Metal protecting wire net, 12, structural flexibility lockset, 13,3D screen cloths, 14, except fog chamber, 15, purge chamber, 16, lifting drive source, 17, lifting Power platform, 18, main drive chain wheel shaft, 19, driving chain, 20, lifting weaving process platform, 21, steel structure framework, 22, driven Sprocket shaft, 23, structural material hanging fixture, 24, main driving motor, 25, riser guide, 26, strainer, 27, coil cradle.
Embodiment
The ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths of the present invention, the mechanism relative to conventional desulfurization demister have The difference of essence.The former is that drop is collected in physical absorption, and the latter is to utilize inertial collision, is entered for particle diameter >=PM15 droplet Promoting the circulation of qi flow separation.And the technical advance of the present invention carries out demisting aiming at the droplet in the particle diameter of PM5~15, demisting efficiency exists 80~90%.
As shown in Fig. 2 flue gas exports from desulfurizing tower enters the ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths by pipeline, Rotate flexible 3D screen cloths adsorbent bed to drop in internal structure using its loose structure adsorption liquid, flexible 3D screen cloths adsorbent bed rotation speed Spend it is adjustable, 3D screen cloths thickness and construction according to design depending on, adsorbent bed adsorption process moves in circles.Rotate flexible 3D screen cloths absorption After bed enters water developing room, enter water system after being purged by multigroup high pressure deashing rifle sustained firing water under high pressure.Specific knot Structure is:It is provided between fume desulfurizing tower outlet and chimney and removes fog chamber 14 and purge chamber 15, purge chamber 15 is placed in except fog chamber 14 Lower end, except the 3D screen cloths adsorbent bed 1 that rotation is provided with fog chamber 14 and purge chamber 15,3D screen cloths adsorbent bed 1 is turned round in except fog chamber 14 In purge chamber 15, except the junction between fog chamber 14 and purge chamber 15 is provided with mechanically-sealing apparatus 2, in purge chamber 15, position High-pressure cleaning gun 3 is provided with the both sides of 3D screen cloths adsorbent bed 1.
To prevent from removing gas blowby between fog chamber 14 and purge chamber 15, this structure is except the junction between fog chamber 14 and purge chamber 15 Installed mechanical seal device 2 additional, if necessary can the corrosion-resistant induced-draught fan of design and installation absorb water smoke and be back to desulfurization tower bottom.
The inside of Wei Shi Now 3D screen cloths 13 is removed thoroughly, and in adsorbent bed both sides, there is provided the injection of the Shi Now bilaterals of high pressure deashing rifle 3 Remove.
As shown in figure 3, the transmission mechanism of flexible 3D screen cloths adsorbent bed is rotated by main driving motor, drive sprocket axle, transmission Chain, 3D screen cloths adsorbent bed, structure lockset, driven chain wheel shaft etc. form.The both sides of 3D screen cloths adsorbent bed 1 are connected by structure lockset To the chain and chain-plate 8 of driving chain 6, the upper end of 3D screen cloths adsorbent bed 1 is provided with driven sprocket provided with drive sprocket axle 4, lower end Axle 7, drive sprocket axle 4 connect main driving motor 5.Main driving motor 5 drives drive sprocket axle 4 and the He of both sides driving chain 6 Driven chain wheel shaft 7, the component of 3D screen cloths adsorbent bed 1 are attached on the chain and chain-plate 8 of both sides driving chain 6 by structure lockset, Shi Now and the motion state of 6 synchronous average rate of both sides driving chain rotation, the linear velocity of driving chain 6 is 0.5~2m/min.Separately Outer driven chain wheel shaft 7 belongs to hanging and adds position limiting structure.
As shown in Figure 4,5, structural bearing metal grill 10 is the primary load-carrying members in the component of 3D screen cloths adsorbent bed 1, quite In the mechanics main body of component, not only intensity is high, elasticity and fatigue resistance are good for it, also to have the rigidity being suitable for needed for structure. To make its rotation status that rationally, steadily the indexing disc that its central plane rotates with chain coincide(Make it in rotary course In neither tension nor be pressurized), pass through the connection of structural rigidity lockset and chain and chain-plate.3D screen cloths and metal protecting wire net are in structure Positioning on bearing metal grid is realized with clamping by structural rigidity lockset, structural flexibility lockset.Concrete structure is: 3D screen cloths adsorbent bed 1 includes structural bearing metal grill 10, metal protecting wire net 11 and 3D screen cloths 13, and 3D screen cloths 13 are connected to structure and held Carry the both sides of metal grill 10, the side connection metal protecting wire net 11 of 3D screen cloths 13.
As shown in Figure 4,5, structure lockset includes structural flexibility lockset 12 and structural rigidity lockset 9, structural flexibility lockset 12 It is interspersed in 3D screen cloths adsorbent bed 1, the right of structural rigidity lockset 9 is clamped and connected structural flexibility lockset 12 and structural bearing metal Grid 10, the left side of structural rigidity lockset 9 are connected on the chain and chain-plate 8 of driving chain 6.The quantity of structural rigidity lockset 9 with Chain and chain-plate 8 corresponds.Structural rigidity lockset 9 is the distance between adjacent be driving chain 6 pitch.
The script of 3D screen cloths 13 is used in a kind of new material of household and automobile and other industries, its have good gas permeability and The advantages that flexural property, quality are gently and mechanical performance and chemical stability are high.Through the common development with relevant unit using strong Spend high, corrosion-resistant(Acidproof is pH value 3~5), high temperature resistant(200℃)Macromolecule silk thread(Aramid fiber or PPS etc.), according to 3D screen cloths Basic technology weave, according to the characteristic requirements of exhaust gas dust absorption dedusting, can easily it be knitted relative to other porous materials Produce the 3D screen cloths in the application of flue gas ash removal field of different hole shape sizes and internal structure.This 3D screen cloth can not only meet flue gas The technique of dust removal field and environmental requirement, and because machine driven system is light, power consumption is low, security reliability is high, manufacturing cost And operating cost is low, market competitive power is strong.
As shown in Figure 6,7, figure includes one to the manufacture work skill flow and tooling device of flexible 3D screen cloths absorption bed member 1 Individual steel structure framework 21, it is provided with steel structure framework 21 and is moved up and down for lifting drive platform 17 and lifting weaving process platform 20 Riser guide 25, lifting drive platform 17 is provided with the structural material hanging fixture 23 and main driving motor for spinfunction 24th, main drive chain wheel shaft 18, driven chain wheel shaft 22 and driving chain 19.Coil cradle 27 is set to be used in the front end of steel structure framework 21 Coiled structure bearing metal grid, 3D screen cloths, the structural material of metal protecting wire net, tension structure 26 is provided with steel structure framework 21. The lifting drive source 16 that the upper end of steel structure framework 21 is set is used for lifting drive platform 17 and the lifting of lifting weaving process platform 20 is dynamic Power source.This tooling device is exactly to adsorb each part in bed member according to the process conditions of actual use operating mode, with reference to 3D screen cloths Material and architectural characteristic and development and design.Concrete structure and typical process flow are as follows:
The first step, the structural material of structural bearing metal grill 10,3D screen cloths 13, metal protecting wire net 11 is rolled onto on coil cradle 27;
Second step, according to the breadth of 3D screen cloths 13 adjust main drive chain wheel shaft 18, the both ends sprocket wheel of driven chain wheel shaft 22 axially away from From its distance is equal to its breadth;
3rd step, lifting drive platform 17 is dropped to 1~2m of bottom position, by technological requirement by the structure on coil cradle 27 On structural material hanging fixture 23 in paper material clamping to lifting drive platform 17, after adjusting strainer 26, lifting lifting is dynamic Then power platform 17 locks strainer 26 to top desired position;
4th step, lifting weaving process platform 20 is dropped to the bottom of steel structure framework 21, and skilled worker's line position is weaved in lifting On technique platform 20, after various locksets and instrument are placed on lifting weaving process platform 20 by technological requirement, lifting weaving Technique platform 20 rises to top desired position, and the structural flexibility lockset weaving and two on breadth direction is carried out according to weaving process The structural rigidity lockset assembling locking at end, and the structural rigidity lockset that both ends assembling has been locked are pre-installed on chain and chain-plate On, this technical process is repeated from top to bottom(When weaving and assembling locking, 3D screen cloth adsorbent bed tow sides have technical staff People is operated).
5th step, wait weave and assemble locking process be accomplished to overall panel height when, by structural material from structural material hang Unloaded on fixture 23, start main driving motor and rotate 3D screen cloths adsorbent bed to top, repeat process above process.
6th step, after being fully completed integral weaving and assembling locking technical process, pass through the sprocket for main drive for rotation After axle 18, driven chain wheel shaft 22 and the structural simulation applying working condition state of driving chain 19 rotate running-in 2 hours, according to actual conditions Necessary quality examination is done, adjusts, unload.

Claims (6)

1. a kind of ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths, including the fume desulfurizing tower outlet of front end connection and end The chimney of connection, it is provided between fume desulfurizing tower outlet and chimney and removes fog chamber(14)And purge chamber(15), purge chamber(15)Put In except fog chamber(14)Lower end, it is characterised in that:It is described to remove fog chamber(14)And purge chamber(15)The interior 3D screen cloths for being provided with rotation are inhaled Attached bed(1), 3D screen cloth adsorbent beds(1)Circle round in except fog chamber(14)And purge chamber(15)It is interior, except fog chamber(14)And purge chamber(15) Between junction be provided with mechanically-sealing apparatus(2), in purge chamber(15)It is interior, positioned at 3D screen cloth adsorbent beds(1)Both sides be provided with High-pressure cleaning gun(3).
2. the ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths as claimed in claim 1, it is characterised in that:The 3D screen cloths are inhaled Attached bed(1)Both sides are connected to driving chain by structure lockset(6)Chain and chain-plate(8)On, 3D screen cloth adsorbent beds(1)Upper end Provided with drive sprocket axle(4), lower end be provided with driven chain wheel shaft(7), drive sprocket axle(4)Connect main driving motor(5).
3. the ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths as claimed in claim 2, it is characterised in that:The structure lockset Including structural flexibility lockset(12)With structural rigidity lockset(9), structural flexibility lockset(12)It is interspersed in 3D screen cloth adsorbent beds(1) It is interior, structural rigidity lockset(9)The right be clamped and connected structural flexibility lockset(12)And structural bearing metal grill(10), structure is firm Property lockset(9)The left side be connected to driving chain(6)Chain and chain-plate(8)On.
4. the ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths as claimed in claim 3, it is characterised in that:The structural rigidity Lockset(9)Quantity and chain and chain-plate(8)Correspond.
5. the ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths as claimed in claim 3, it is characterised in that:The structural rigidity Lockset(9)The distance between adjacent is driving chain(6)Pitch.
6. the ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths as claimed in claim 1, it is characterised in that:The 3D screen cloths are inhaled Attached bed(1)Including structural bearing metal grill(10), metal protecting wire net(11)With 3D screen cloths(13), 3D screen cloths(13)It is connected to structure Bearing metal grid(10)Both sides, 3D screen cloths(13)Side connection metal protecting wire net(11).
CN201711145810.6A 2017-11-17 2017-11-17 The ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths Pending CN107694251A (en)

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CN201711145810.6A CN107694251A (en) 2017-11-17 2017-11-17 The ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103877786A (en) * 2014-03-18 2014-06-25 杨虎 Lamellar composite filtering material with three-dimensional structure and preparation method of lamellar composite filtering material
CN104740948A (en) * 2015-03-13 2015-07-01 苏州圣谱拉新材料科技有限公司 Rolling type air cavity dedusting device
CN105664629A (en) * 2015-12-31 2016-06-15 国电南京自动化股份有限公司 Deep fog and dust removal apparatus
CN207628146U (en) * 2017-11-17 2018-07-20 秦光 The ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103877786A (en) * 2014-03-18 2014-06-25 杨虎 Lamellar composite filtering material with three-dimensional structure and preparation method of lamellar composite filtering material
CN104740948A (en) * 2015-03-13 2015-07-01 苏州圣谱拉新材料科技有限公司 Rolling type air cavity dedusting device
CN105664629A (en) * 2015-12-31 2016-06-15 国电南京自动化股份有限公司 Deep fog and dust removal apparatus
CN207628146U (en) * 2017-11-17 2018-07-20 秦光 The ultra-clean mist separator of desulfurization of rotary type flexible 3D screen cloths

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Application publication date: 20180216