CN105498434A - Multi-cyclone dust and mist collector unit and multi-cyclone dust and mist collector - Google Patents
Multi-cyclone dust and mist collector unit and multi-cyclone dust and mist collector Download PDFInfo
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- CN105498434A CN105498434A CN201610069438.4A CN201610069438A CN105498434A CN 105498434 A CN105498434 A CN 105498434A CN 201610069438 A CN201610069438 A CN 201610069438A CN 105498434 A CN105498434 A CN 105498434A
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- removing demister
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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
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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Abstract
The invention discloses a multi-cyclone dust and mist collector unit and a multi-cyclone dust and mist collector, and belongs to the technical field of environmental protection equipment. A plurality of signal cyclones are assembled in a cluster manner in various desulfurization absorption towers and dust and mist collectors; the multi-cyclone dust and mist collector unit is a liquid collecting cylinder, a first cyclone is mounted at the lower part in the liquid collecting cylinder, a second cyclone is mounted at the upper part in the liquid collecting cylinder, and a washing device is mounted above the first cyclone; at least one longitudinal liquid collecting groove is further fixedly connected with the outer wall of the liquid collecting cylinder, and is communicated with the liquid collecting cylinder,. The multi-cyclone dust and mist collector unit has the advantages of simple structure, good dust and mist collecting effects, stable operation, low cost of investment, low operating cost, durable service, high safety and reliability.
Description
Technical field
The invention belongs to technical field of environment protection equipment, relate to the saturated wet flue gas containing dust, droplet such as industrial waste gas and the device carrying out dedusting demist containing droplet other gases aerocolloidal, multitube rotational flow dust-removing demister monomer and multitube rotational flow dust-removing demister specifically.
Background technology
The seriously polluted haze of current atmospheric causes great impact to the life health of people, national environmental protection portion requires flue dust minimum discharge, the best technique that soot emissions index is less than the current smoke gas treatment of 5mg/Nm3. is exactly bag-type dust+wet desulphurization, after bag-type dust, dust content can be down to 30mg/Nm3, but flue gas flue dust after wet desulphurization absorption tower goes up not down, reach 40-50mg/Nm3. reason to be just in the neat stress that flue gas discharges after wet desulphurization with a large amount of gypsum droplets, though be equipped with demister in absorption tower but effect is bad, grit and the droplet of below 15um can not be absorbed, cause smoke discharge amount in the neat stress of outer row large, gypsum rain phenomenon is serious, severe contamination air.
In prior art, rotating stream tray scrubber is the invention seventies, is used for the integrated tower (also referred to as water film dedusting tower) of boiler smoke dedusting, desulfurization the eighties.The swirl-flow devices of this tower is integrated device, and tower diameter size all establishes every layer of swirl-flow devices, and its principle is ash-laden gas when flowing through spiral board, and one is utilize the liquid film on spiral board surface to adhere to dust in flue gas; Two is that dust and droplet are thrown to Ta Bi and had be taken in liquid film adhering dust and drop of tower wall to converge into liquid stream and flow back at the bottom of tower by the centrifugal force utilizing flue gas to rotate, and dust removing effects is only 50-60%, goes out tower smoke content and is greater than 200mg/Nm3.Study carefully the reason of its dust removing effects difference, one is that overcurrent cigarette speed is too low only has 2.5-3.5m/s, and the centrifugal force produced is not enough to flue dust and droplet all to throw collected to tower wall by liquid film, and the flue dust and the droplet that lose centripetal force are discharged outside tower with flue gas; Two be because the excessive flue gas range ability near center blind plate of tower diameter too large low cigarette speed again when dust run out of steam to discharge with flue gas and cause that efficiency of dust collection is too low does not reach existing dust emission standard; Three is rotating stream tray scrubbers is that self-contained unit expenditure of construction is high, in sulfur-containing smoke gas dedusting, anticorrosion being difficult to of spiral board solves, in reality, 90% adopts numb stone (granite) to build, fiber crops Shi Qi ?gap be difficult to tower wall when sealing causes flue gas malleation and reveal, the plug-in sulphur of tower, air-introduced machine seriously corroded during flue gas negative pressure, causes this tower dust-removal and desulfurizing all can not be up to standard.Therefore, at present, rotating stream tray scrubber is eliminated substantially.
Existing rotational flow plate defroster be also with integral form be arranged on operation principle in desulfurizing tower be also make overcurrent flue gas rotate produce centrifugal force the droplet in flue gas is thrown to Ta Bi, collected by tower-wall liquid film and conflux, this device same is also because cigarette speed is low, the large effect affecting dedusting demist of flue gas range ability, this device cannot reach the current standard of soot emissions 5mg/Nm3.Seldom rotational flow plate defroster is adopted in reality.
For solving fume emission excessive problem, current practice is after wet desulphurization, add the clean electric dust collector of a kind of wet type, though the flue gas after the clean electric precipitation process of wet type can reach the discharge standard of below 5mg/Nm3, but its equipment is huge, and cost is high, and energy consumption is large, special being difficult in existing desulphurization system increases the clean electric cleaner of wet type, namely be that grassroot project sets up its construction investment of the clean electric cleaner of wet type, operating cost, maintenance cost are large, and construction unit is also difficult to bear.
Summary of the invention
In order to solve in prior art, dedusting, except fog effect bad, can not be up to state standards demister and equipment is huge, cost is high, energy consumption is large, operation expense is large, the problems such as system operation maintenance difficulty, crushing is large, provide a kind of multitube rotational flow dust-removing demister monomer and the multitube rotational flow dust-removing demister that can substitute demister in existing desulfuration absorbing tower and the clean electric cleaner of wet type.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of multitube rotational flow dust-removing demister monomer provided by the invention, this monomer is liquid cylinder, and in described liquid cylinder, bottom is provided with the first eddy flow, and internal upper part is provided with the second eddy flow, is provided with flusher above described first eddy flow; Described liquid cylinder outer wall is also fixedly connected with at least one longitudinal collecting tank, and described collecting tank communicates with described liquid cylinder.
The present invention also has following additional technical feature:
Preferably, described liquid cylinder cross section is circular or regular polygon; When described liquid cylinder cross section is circular, described liquid collecting barrel and described collecting tank junction have longitudinal drain tank, and the width of described drain tank is less than the width of described collecting tank.
Preferably, when described liquid cylinder cross section is circle, described collecting tank is formed by the space between described liquid cylinder and the drift angle of the outer sheathed corresponding regular polygon cylindrical shell of liquid cylinder.
Preferably, described eddy flow includes swirl vane, outer ring and central tube; Be fixedly connected on outer ring outside described swirl vane, inner side is fixedly connected on central tube; Described outer ring outer wall is fixed on liquid cylinder inwall;
Described flusher includes wash tub pipe, nozzle and center pipe cap; The detachable top being installed on central tube of described center pipe cap, center pipe cap is provided with a through hole, and described wash tub pipe runs through through hole, and described nozzle is positioned at wash tub pipe end and is positioned at the top of described first eddy flow.
Preferably, when described liquid cylinder cross section is circular, described liquid cylinder diameter is 300mm-600mm, and be highly 800mm-1500mm, described swirl vane becomes exocentric angle in liquid cylinder; When described liquid cylinder cross section is regular polygon, described liquid cylinder inscribe diameter is 300mm-600mm, and be highly 800mm-1500mm, described swirl vane is designed to interior to angle in liquid cylinder; Described exocentric angle or the interior radial angle scope to angle are ± 10-20 °, and horizontal angular range is 20-30 °, and the scope of registration is 20-25%; The thickness of described swirl vane is 3-10mm, quantity 12-24 sheet.
Preferably, described regular polygon is regular hexagon.
Preferably, described drain tank is 6-12 bar, wide 10-20mm, long 800mm-1500mm; Described collecting tank width is not less than 25mm, and height is equal with liquid cylinder.
Preferably, described outer ring height is 80mm-120mm; The cross-sectional area of described central tube is 0.1-0.2 times of liquid cylinder cross-sectional area, is highly the 3/1-1/4 of liquid cylinder height.
A kind of multitube rotational flow dust-removing demister provided by the invention its combined with bundle-shaped by above-mentioned multitube rotational flow dust-removing demister monomer.
Preferably, described multitube rotational flow dust-removing demister also comprises connecting plate, and described multitube rotational flow dust-removing demister monomer fixedly couples together by described connecting plate, and described connecting plate is concordant with described multitube rotational flow dust-removing demister monomer top.
Multitube rotational flow dust-removing demister, principle: monomer cyclone is installed in multitube rotational flow dust-removing demister with the combination of the form of multitube bundling, saturated wet flue gas containing a large amount of grit, the droplet multitube rotational flow dust-removing demister flue gas that flows through from bottom to top rotates rising rapidly in each monomer cyclone, utilize the dust in the ad-hesion removal rate flue gas of centrifugal force and the liquid film rotated and droplet, reach the effect of purifying smoke.
Compared with prior art, the invention has the advantages that:
1. multitube rotational flow dust-removing demister of the present invention is that demister optimal sorting is refined as multiple monomer cyclone, considerably increase the specific collection area of demister, eddy flow of minor diameter shortens the range ability of flue dust, increase flue dust flow velocity, being conducive to flue dust droplet comes together on liquid cylinder inwall, and the purification efficiency of dedusting demist is higher, more remarkable effect.
2. multitube rotational flow dust-removing demister of the present invention fully combines the advantage of spiral-flow plate-type dust removal with machine and electric precipitation, can realize multilayer dedusting demist, achieve dedusting, demist integration, structure is simple, stable, reliability is high, consume energy little, cost is low, and maintenance cost is low, long service life, operating cost is few and can realize minimum discharge, and smoke content is less than the discharge standard of 5mg/Nm3, is suitable for applying on a large scale.
3. the nozzle of multitube rotational flow dust-removing demister of the present invention can clear up the dust on swirl vane and liquid cylinder inwall simultaneously, blocks risk without fouling; More optimizedly, the setting of collecting tank and drain tank can make the dust on liquid cylinder inwall flow down in time, control thickness of liquid film, and the width of collecting tank is greater than the width of drain tank, the impact that liquid stream in collecting tank is not subject to the swirling eddy flowing through eddy flow occurs that the atomization of swashing of liquid stream causes secondary pollution, thus ensure that the smoke content of discharging rotational flow dust-removing demister can not raise again, improve dust removing effects; Reduce running resistance, reduce operation energy consumption, increase operating efficiency, energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is cylindrical shape monomer a cluster cyclone assembling structure schematic diagram;
Fig. 2 is the cylindrical shape monomer a cluster cyclone assembling structure schematic diagram top view of Fig. 1;
Fig. 3 is drain tank enlarged diagram;
Fig. 4 is hexagon monomer a cluster cyclone assembling structure schematic diagram;
Fig. 5 is the hexagon monomer a cluster cyclone assembling structure schematic diagram top view of Fig. 4;
Fig. 6 is eddy flow minor structure schematic diagram;
Fig. 7 is the eddy flow minor structure schematic diagram top view of Fig. 6;
Fig. 8 is multiple cylinder monomer a cluster cyclone assembling structure schematic diagrames;
Fig. 9 is multiple six square tube monomer a cluster cyclone assembling structure schematic diagrames;
description of reference numerals
In figure, liquid cylinder 1, collecting tank 2, center pipe cap 3, wash tub pipe 4, central tube 5, nozzle 6, outer ring 7, swirl vane 8, drain tank 9, connecting plate 10.
Detailed description of the invention
Be described below in detail embodiments of the invention, wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Multitube rotational flow dust-removing demister of the present invention is mainly installed on the exit of top in desulfuration absorbing tower, dust-laden in desulfurizing tower, saturated flue gas containing droplet is formed multitube rotational flow dust-removing demister to pass through during 3-3.5m/s speed upper reaches by multiple monomer cyclone, its overall flow section is less than desulfuration absorbing tower flow section, flue gas flow rate is forced to increase, when flue gas flow rate is greater than 5m/s, under the guide effect of swirl vane 8, flue gas rotates rising rapidly, flue gas rotates in uphill process at speed and direction changing and produces turbulent flow, what realize flow of flue gas state is transited into helical form by direct current shape, grit in flue gas and droplet are collided mutually, bonding, be condensed into larger dust-laden drop.Utilize flue gas and the drop carried in flue gas, flue dust to be separated inertia different, drop, flue dust are thrown to liquid cylinder 1 inwall.Because the water smoke in the saturated wet flue gas of liquid cylinder 1 contact internal walls has formed certain thickness liquid film, when larger dust-laden drop touches liquid film, namely drop is adsorbed paved set on liquid cylinder 1 inwall, take care of the pence and converge into dust-containing liquid stream, liquid stream flows to drain tank 9 and enters collecting tank 2 under the drive rotating flue gas, liquid flows back to and flows at the bottom of tower under gravity, realizes the seizure to drop and flue dust, thus reaches the object of dedusting demist.
As Figure 1-3, a kind of multitube rotational flow dust-removing demister monomer, this monomer is circular liquid cylinder 1, and in liquid cylinder 1, bottom is provided with the first eddy flow, and internal upper part is provided with the second eddy flow, is provided with flusher above the first eddy flow; Liquid cylinder 1 outer wall is also fixedly connected with at least one collecting tank 2, collecting tank 2 and liquid cylinder 1 outer wall junction have drain tank 9, drain tank 9 makes collecting tank 2 communicate with liquid cylinder 1, drain tank 9 discharges the dust-containing liquid stream collected, control thickness of liquid film, prevent the atomization of swashing of liquid stream from causing secondary pollution, the section configuration of collecting tank 2 is not limit.Liquid cylinder 1 is the critical piece collecting flue dust and droplet, and the shape of liquid cylinder 1 nozzle cross section is circular.Concrete, can the positive gengon cylinder of sheathed corresponding size outside liquid cylinder 1, liquid cylinder 1 offers drain tank 9 in the corresponding position, angle with positive gengon cylinder, and collecting tank 2 is the gap that liquid cylinder 1 is formed with positive gengon cylinder.
As illustrated in figures 4-5, a kind of multitube rotational flow dust-removing demister monomer, this monomer is liquid cylinder 1, and liquid cylinder 1 is Polygonal barrel structure, and in cylindrical shell, bottom is provided with the first eddy flow, and internal upper part is provided with the second eddy flow, is provided with flusher above the first eddy flow.The liquid cylinder 1 of this regular polygon tube structure does not need to arrange collecting tank 2, and liquid stream can accumulate stream and stay at the angle place of regular polygon, do not need to arrange collecting tank 2 again, and structure is simple but easily produce secondary-atomizing compared with the liquid cylinder 1 shown in Fig. 1.Concrete, liquid cylinder 1 is six square tubes.This kind of multitube rotational flow dust-removing demister monomer and the above-mentioned multitube rotational flow dust-removing demister arranging collecting tank 2 belong to same inventive concept.
Concrete, as shown in fig. 6-7, eddy flow includes swirl vane 8, outer ring 7 and central tube 5, outer ring 7 is fixedly connected on outside swirl vane 8, inner side is fixedly connected on central tube 5, swirl vane 8 is the fanning strips with inside and outside circular arc, its installation quantity, angle, size are according to exhaust gas volumn, gas speed, liquid cylinder 1 diameter and central tube 5 external diameter carry out adjusted design, revolve swirl vane 8 by set angle and rotation direction, install arrangement at same plane, have certain registration, registration is the key ensureing flue gas flow rate and angle of elevation; Outer ring 7 outer wall is fixed on liquid cylinder 1 inwall.Outer ring 7 is parts of fixing swirl vane 8, size, the shape of the size of outer ring 7 external diameter, shape and the nozzle internal diameter of liquid cylinder 1 are consistent, outer wall and liquid cylinder 1 inwall of outer ring 7 fit together, its diameter is determined by liquid cylinder 1, outer wall and liquid cylinder 1 inwall of outer ring 7 fit together, and height is determined by the level angle of swirl vane 8.
Central tube 5 is fixing swirl vane 8 and ensures the parts of circulation size, central tube 5 top closure.Swirl vane 8 is the fanning strips with inside and outside circular arc, its installation quantity, angle, size carry out adjusted design according to exhaust gas volumn, gas speed, liquid cylinder 1 diameter and central tube 5 external diameter, and swirl vane 8 is welded between outer ring 7 and central tube 5 by uniform shapes and angle in horizontal plane.
Concrete, as shown in Fig. 1,4, for preventing longtime running fouling, blocking, in liquid cylinder 1, be also provided with the flusher for rinsing liquid cylinder 1 inwall and eddy flow.Flusher includes wash tub pipe 4, nozzle 6 and center pipe cap 3; Center pipe cap 3 is by the detachable top being installed on central tube 5 of bolt, and it is more convenient that detachable design makes it keep in repair.Center pipe cap 3 is provided with a through hole, is specially its center, and through hole internal diameter is identical with wash tub pipe 4 external diameter.Wash tub pipe 4 is positioned on the central axis of liquid cylinder 1, runs through in the through hole of insertion center pipe cap 3, and is welded and fixed, and wash tub pipe 4 diameter is 10-30mm, nozzle 6 interface diameter and wash tub pipe 4 equal diameters, center pipe cap 3 diameter and central tube 5 equal diameters.Nozzle 6 is connected to the end of the wash tub pipe 4 under being stretched by pipe cap center, the top of the first eddy flow.Due to dust-laden in flue gas, containing mist reach a certain amount of after, part dirt, mist can accumulate on liquid cylinder 1 inwall and eddy flow, by the flushing of flusher to liquid cylinder 1 inwall and eddy flow, avoid fouling, clogging occurs, improve dedusting accordingly, except fog effect.Washing time and flushing duration, then carry out according to the concrete service condition of multitube rotational flow dust-removing demister and determine.
Concrete, liquid cylinder 1 inner wall smooth, circular liquid cylinder 1 diameter is 300mm-600mm, is highly 800mm-1500mm, and regular polygon liquid cylinder 1 inscribe diameter is 300mm-600mm, is highly 800mm-1500mm.
Concrete, drain tank 9 is 6-12 bar, wide 10-20mm, long 800mm-1500mm; Collecting tank 2 width is not less than 25mm, and height is equal with liquid cylinder 1.
Concrete, when liquid cylinder 1 is circular, swirl vane 8 is designed to exocentric angle in liquid cylinder 1; When liquid cylinder 1 is regular polygon, swirl vane 8 is designed to exocentric angle in liquid cylinder 1; Swirl vane 8 is welded between the sub-outer ring 7 of eddy flow and central tube 5 in a horizontal plane by uniform shapes and angle, the radial angle of swirl vane 8; Circular liquid cylinder 1 is designed to exocentric angle, flue gas deflection liquid cylinder 1 inwall rotates the collection being conducive to flue dust and droplet, regular polygon shape liquid cylinder 1 be designed to interior to angle flue gas deflection central tube 5 rotate, exocentric angle and the interior radial angle scope to angle are ± 10-20 °, horizontal angular range is 20-30 °, and the scope of registration is 20-25%; The thickness of swirl vane 8 is 3-10mm, quantity 12-24 sheet.
Concrete, outer ring 7 is highly 80mm-120mm; The sectional area of central tube 5 is 0.1-0.2 times of liquid cylinder 1 sectional area, is highly the 3/1-1/4 of liquid cylinder 1 height.
Concrete, as Figure 8-9, a kind of multitube rotational flow dust-removing demister its combined with bundle-shaped by above-mentioned multitube rotational flow dust-removing demister monomer.Multitube rotational flow dust-removing demister also comprises connecting plate 10, multitube rotational flow dust-removing demister monomer fixedly couples together by connecting plate 10, connecting plate 10 is concordant with multitube rotational flow dust-removing demister monomer top, connecting plate 10 top can be made like this to stockpile the things such as flushing water, prevent flushing water to its pressure caused and corrosion impact.The multitube rotational flow dust-removing demister be combined into by six square-tube-shaped liquid cylinders 1 arrangement shown in Fig. 5 is more intensive, and structure is more stable.
Concrete, the material of multitube rotational flow dust-removing demister is corrosion resistant metal or corrosion resistant non-metallic material.
Embodiment 1:
When liquid cylinder 1 is inner wall smooth smooth six square tube, six square tube diameters are 450mm, are highly 1200mm.Swirl vane 8 is the sector with inside and outside circular arc, and swirl vane 8 is pressed set angle and rotation direction, installed arrangement at same plane.The thickness of swirl vane 8 is 15mm, quantity 16.Swirl vane 8 arranges to angle by interior in six square tube liquid cylinders 1, and radial angle scope is 10 °, and horizontal angular range is 25 °.Swirl vane 8 is installed will certain registration, and registration is 20%.Flue gas deflection central tube 5 rotates the collection being conducive to flue dust and droplet.Six drift angles of six square tubes play the effect of liquid collecting drainage.
As what optimize, outer ring 7 height 100mm, outer ring 7 external diameter is 450mm, and matches with liquid cylinder 1 inner diameter shape and closely cooperate, and the section configuration of collecting tank 2 is not limit.
As what optimize, central tube 5 is that top is opening and the cylindrical tube of inner hollow; The sectional area of central tube 5 is 0.1-0.2 times of liquid cylinder 1 sectional area, is highly the 3/1-1/4 of liquid cylinder 1 height.Be preferably, central tube 5 diameter 85mm, height 350mm;
As what optimize, wash tub pipe 4 diameter is 15mm, and nozzle 6 interface diameter is 15mm, and center pipe cap 3 diameter and central tube 5 equal diameters, be 85mm, can remove and install.
As what optimize, the material of multitube rotational flow dust-removing demister is corrosion resistant non-metallic material, high temperature resistant, uses mission long.
Embodiment 2:
When liquid cylinder 1 is inner wall smooth smooth pipe, swirl vane 8 is the sector with inside and outside circular arc, and swirl vane 8 is pressed set angle and rotation direction, installed arrangement at same plane.The thickness of swirl vane 8 is 25mm, quantity 24.The inwall of liquid cylinder 1 evenly has the drain tank 9 in through hole, correspondingly outside drain tank 9 be fixed with collecting tank 2, collecting tank 2 is wrapped in drain tank 9, and the section configuration of collecting tank 2 is not limit.The diameter of liquid cylinder 1 is 600mm, is highly 1500mm, and drain tank 9 is 12, wide 10mm, long 300mm, and collecting tank 2 radius is 40mm, and height is equal with liquid cylinder 1, is 1500mm.Swirl vane 8 is designed to exocentric angle in pipe liquid cylinder 1, and radial angle is-10 °, and horizontal angle is 20 °.Swirl vane 8 is installed will certain registration, and registration is 30%.Flue gas deflection liquid cylinder 1 inwall rotates the collection being conducive to flue dust and droplet, and drain tank 9 discharges the dust-containing liquid stream collected, and controls thickness of liquid film, prevents the atomization of swashing of liquid stream from causing secondary pollution.
Flue gas is through the eddy flow period of the day from 11 p.m. to 1 a.m, due to the particular design of swirl vane 8 shape, angle make dirt, mist is more prone to is removed, easier formation eddy flow when flue gas also can be made upwards to flow, thus the flow velocity of flue gas through each eddy flow can be controlled, that improves each eddy flow removes fog effect, greatly increases dedusting of the present invention, demist effect.
As what optimize, outer ring 7 height 100mm, outer ring 7 external diameter matches with liquid cylinder 1 inner diameter shape and closely cooperate, and is 600mm.
As what optimize, central tube 5 is that top is opening and the cylindrical tube of inner hollow; The sectional area of central tube 5 is 0.1-0.2 times of liquid cylinder 1 sectional area, is highly the 3/1-1/4 of liquid cylinder 1 height.Be preferably, central tube 5 diameter 120mm, height 450mm.
As what optimize, wash tub pipe 4 diameter is 15mm, and nozzle 6 interface diameter is 15mm, and center pipe cap 3 diameter and central tube 5 equal diameters, be 120mm, can remove and install.
As what optimize, the material of multitube rotational flow dust-removing demister is corrosion resistant metal material, high temperature resistant, uses mission long.
Installation Example 1:
With desulfuration absorbing tower diameter 4m, upper reaches cigarette speed 3.5m/s is example, and calculating by upper reaches cigarette speed 6m/s needs multitube rotational flow dust-removing demister monomer (hereinafter referred to as " monomer cyclone ") 78, and liquid cylinder 1 external diameter is 400mm, actual arrangement 79.Multitube rotational flow dust-removing demister lower end arranges Support bracket, the vertical out-fall of monomer cyclone, gap between monomer cyclone and the gap secure seal between monomer cyclone with tower wall periphery are connected with the connecting plate 10 of monomer cyclone identical material by upper end, connecting plate 10 is suitable for reading concordant with monomer cyclone, water when rinsing to prevent wash tub pipe 4 pairs of monomer cyclones.According to actual conditions and the emission request of flue gas, multitube rotational flow dust-removing demister can design 1 layer, 2 layers or multilayer.Wash tub pipe 4 is arranged in the top of the first eddy flow in multitube rotational flow dust-removing demister, 2 arms are provided with in each monomer cyclone, an arm is connected to the wash tub pipe 4 of monomer cyclone inside, an arm is connected to the nozzle 6 of wash tub pipe 4 end in monomer cyclone, for rinsing laying dust and dirt in cyclone.
Installation Example 2:
With desulfuration absorbing tower diameter 4m, upper reaches cigarette speed 3.5m/s is example, and calculate by upper reaches cigarette speed 6m/s, need hexagon monomer cyclone 78, liquid cylinder 1 inscribed circle diameter is 400mm, actual arrangement 79.Mounting means is the same.But upper end seal plate is very simple, because six square tubes arrangements do not exist gap, the gap only between the connecting plate 10 secure seal monomer cyclone of use and monomer cyclone identical material and tower wall periphery.Connecting plate 10 is suitable for reading concordant with monomer cyclone, water when rinsing to prevent wash tub pipe 4 pairs of monomer cyclones.According to actual conditions and the emission request of flue gas, multitube rotational flow dust-removing demister can design 1 layer, 2 layers or multilayer.Wash tub pipe 4 is identical with example 1 mounting means.
What finally illustrate is, in the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.In addition, the different embodiment described in this description or example can carry out engaging and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. a multitube rotational flow dust-removing demister monomer, is characterized in that, this monomer is liquid cylinder, and in described liquid cylinder, bottom is provided with the first eddy flow, and internal upper part is provided with the second eddy flow, is provided with flusher above described first eddy flow; Described liquid cylinder outer wall is also fixedly connected with at least one longitudinal collecting tank, and described collecting tank communicates with described liquid cylinder.
2. multitube rotational flow dust-removing demister monomer according to claim 1, is characterized in that, described liquid cylinder cross section is circular or regular polygon; When described liquid cylinder cross section is circular, described liquid collecting barrel and described collecting tank junction have longitudinal drain tank, and the width of described drain tank is less than the width of described collecting tank.
3. multitube rotational flow dust-removing demister monomer according to claim 2, it is characterized in that, when described liquid cylinder cross section is circle, described collecting tank is formed by the space between described liquid cylinder and the drift angle of the outer sheathed corresponding regular polygon cylindrical shell of liquid cylinder.
4. multitube rotational flow dust-removing demister monomer according to claim 1, it is characterized in that, described eddy flow includes swirl vane, outer ring and central tube; Be fixedly connected on outer ring outside described swirl vane, inner side is fixedly connected on central tube; Described outer ring outer wall is fixed on liquid cylinder inwall;
Described flusher includes wash tub pipe, nozzle and center pipe cap; The detachable top being installed on central tube of described center pipe cap, center pipe cap is provided with a through hole, and described wash tub pipe runs through through hole, and described nozzle is positioned at wash tub pipe end and is positioned at the top of described first eddy flow.
5. multitube rotational flow dust-removing demister monomer according to claim 2, is characterized in that, when described liquid cylinder cross section is circular, described liquid cylinder diameter is 300mm-600mm, and be highly 800mm-1500mm, described swirl vane becomes exocentric angle in liquid cylinder; When described liquid cylinder cross section is regular polygon, described liquid cylinder inscribed circle diameter is 300mm-600mm, and be highly 800mm-1500mm, described swirl vane is designed to interior to angle in liquid cylinder; Described exocentric angle or the interior radial angle scope to angle are ± 10-20 °, and horizontal angular range is 20-30 °, and the scope of registration is 20-25%; The thickness of described swirl vane is 3-10mm, quantity 12-24 sheet.
6. multitube rotational flow dust-removing demister monomer according to claim 2, it is characterized in that, described regular polygon is regular hexagon.
7. multitube rotational flow dust-removing demister monomer according to claim 2, it is characterized in that, described drain tank is 6-12 bar, wide 10-20mm, long 800mm-1500mm; Described collecting tank width is not less than 25mm, and height is equal with liquid cylinder.
8. multitube rotational flow dust-removing demister monomer according to claim 4, it is characterized in that, described outer ring height is 80mm-120mm; The cross-sectional area of described central tube is 0.1-0.2 times of liquid cylinder cross-sectional area, is highly the 3/1-1/4 of liquid cylinder height.
9. a multitube rotational flow dust-removing demister, is characterized in that, its multitube rotational flow dust-removing demister monomer according to any one of claim 1-8 combines with bundle-shaped.
10. multitube rotational flow dust-removing demister according to claim 9, it is characterized in that, described multitube rotational flow dust-removing demister also comprises connecting plate, described multitube rotational flow dust-removing demister monomer fixedly couples together by described connecting plate, and described connecting plate is concordant with described multitube rotational flow dust-removing demister monomer top.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610069438.4A CN105498434A (en) | 2016-01-29 | 2016-01-29 | Multi-cyclone dust and mist collector unit and multi-cyclone dust and mist collector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610069438.4A CN105498434A (en) | 2016-01-29 | 2016-01-29 | Multi-cyclone dust and mist collector unit and multi-cyclone dust and mist collector |
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| CN105498434A true CN105498434A (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610069438.4A Pending CN105498434A (en) | 2016-01-29 | 2016-01-29 | Multi-cyclone dust and mist collector unit and multi-cyclone dust and mist collector |
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| CN108479200A (en) * | 2018-04-18 | 2018-09-04 | 江苏鑫华能环保工程股份有限公司 | Bundled tube demister |
| CN109893955A (en) * | 2019-03-27 | 2019-06-18 | 海汇集团有限公司 | Desulphurization system restrains demister |
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