CN207412981U - Pneumatic emulsifying processing unit - Google Patents

Abstract

The utility model discloses a kind of Pneumatic emulsifying processing unit, including set gradually from bottom to top equal gas chamber, filter chamber and except fog chamber, it is described to be axially inside equipped at intervals with several mechanical demisters except fog chamber, it is described except the top of fog chamber is equipped with fiber demisting film layer.The utility model provides Pneumatic emulsifying processing unit, and the fiber demisting film layer that demisting ceiling portion is set can be filtered absorption to the acid mist particle in flue gas, so that the flue gas of gas outlet reaches discharge standard.

Description

Pneumatic emulsifying processing unit

Technical field

The utility model is related to Pneumatic emulsifying technical field more particularly to a kind of Pneumatic emulsifying processing units.

Background technology

Pneumatic emulsifying method is a kind of common flue gas treating process, is mainly used for the desulfurization of flue gas, compared with traditional dry method Or wet desulfurizing process, Pneumatic emulsifying method have desulfuration efficiency high (reaching as high as 99.99%), desulfuration efficiency stabilization, energy consumption less The advantages that, start widely to be applied to the fields such as nonferrous metallurgy, electric power, chemical industry, steel.

The formation mechenism of Pneumatic emulsifying can refer to as follows：In round tubular container (also referred to as cartridge filter, swirl cylinder), through adding The pending flue gas of speed enters container from container lower end at a certain angle, the turbulent airflow that rotation rises is formed, with container upper end The solution flowed down is mutually hit, and with the circumgyration incision solution, and then the solution can be cut into tiny droplet particles so that flue gas It can be sufficiently mixed with liquid, and form emulsification liquid layer；With the continuous progress of above-mentioned emulsion process, liquid layer progressive additive is emulsified, Towing force caused by the gas flowed up can reach balance with emulsifying the gravity of liquid layer, to form stable emulsification liquid layer.

In the emulsification liquid layer, the SO in flue gas₂Etc. can be in contact with the droplet particles in emulsion, and by the drop Grain is absorbed, so as to achieve the purpose that flue gas desulfurization.And with the progress of fume treatment process, above-mentioned emulsion will continually Ground generates, and a large amount of SO of absorption formed earliest₂Emulsion become waste emulsion liquid, can be arranged by the bottom of the container Go out, in this way, the emulsification liquid layer of above-mentioned dynamic stability can maintain certain thickness always, to ensure to SO in flue gas₂Absorption Processing capacity.

Flue gas after emulsifying liquid layer can carry a certain amount of vapor, and with the decline of temperature, the water in flue gas Steam can largely condense, and form subtle droplets particles, and due to still containing the SO not removed in flue gas₂, which is in Existing acidity, also referred to as acid mist particle.The acid mist particle size is small, and quantity is more, and specific surface area is larger, thin in adsorbable flue gas The foreign ions such as small dust and hydroxyl, sulfate radical, potassium, sodium.

To remove above-mentioned acid mist particle, usually set in the top of each cartridge filter be equipped with mechanical demister in the prior art, But its demisting ability is extremely limited, is typically only capable to acid mist particle of the removal grain size at 40 microns or more, and micro- 40 for grain size Acid mist particle below rice is then difficult to remove, this results in the flue gas in Pneumatic emulsifying device exit still to contain substantial amounts of acid mist Grain, it is difficult to meet discharge standard.

Therefore, how a kind of Pneumatic emulsifying processing unit is provided, is still ability to effectively remove the acid mist particle in flue gas The technical issues of technical staff in domain is urgently to be resolved hurrily.

Utility model content

The purpose of this utility model is to provide a kind of Pneumatic emulsifying processing unit for effectively removing acid mist particle in flue gas.

In order to solve the above technical problems, the utility model provides a kind of Pneumatic emulsifying processing unit, including from bottom to top according to The equal gas chamber of secondary setting, filter chamber and except fog chamber, it is described to be axially inside equipped at intervals with several mechanical demisters, institute except fog chamber It states except the top of fog chamber is equipped with fiber demisting film layer.

The utility model provides Pneumatic emulsifying processing unit, and the fiber demisting film layer that demisting ceiling portion is set can be to cigarette Acid mist particle in gas is filtered absorption, so that the flue gas of gas outlet reaches discharge standard.

Optionally, the fiber demisting film layer includes keel frame and several tubular fiber mist eliminators, the keel Frame is arranged on the cross section for removing fog chamber, and each fiber mist eliminator is mounted on the keel frame.

Optionally, several diamond plates are further included, each diamond plate is layed in the keel frame；

Mounting hole is equipped in the middle part of each diamond plate, the corresponding flower is fixed in the upper end of the fiber mist eliminator The mounting hole of card.

Optionally, the fiber mist eliminator includes netted inner cylinder and outer barrel, is filled between the inner cylinder, the outer barrel Fabric filter element.

Optionally, the material of the fabric filter element is fluorinated silicate or ceramics.

Optionally, the first spray assemblies are further included, are rinsed with the outside wall surface to each fiber mist eliminator.

Optionally, the second spray assemblies are further included, are rinsed with the internal face to each fiber mist eliminator；The fibre The bottom for tieing up demister is equipped with the connection inner cylinder, the bottom plate of the outer barrel, and the bottom plate is enclosed outlet with the inner cylinder Chamber, the bottom plate are additionally provided with the diversion pipe connected inside the outlet chamber and the Pneumatic emulsifying processing unit, second spray Shower water caused by leaching component can be expelled to inside the Pneumatic emulsifying processing unit by the diversion pipe, the water conservancy diversion The lower end of pipe is equipped with water seal member.

Optionally, the quantity of the fiber demisting film layer is multiple, each axially spaced setting of fiber demisting film layer.

Optionally, each mechanical demister is equipped with the 3rd matched spray assemblies, to be removed to each machinery Day with fog is rinsed.

Optionally, the 3rd spray assemblies include upper spray portion and lower spray portion, the upper spray portion, the lower spray Portion is respectively arranged on top, the lower section of the corresponding mechanical demister.

Description of the drawings

Fig. 1 is provided a kind of structure diagram of specific embodiment of Pneumatic emulsifying processing unit by the utility model；

Fig. 2 is the side view of fiber demisting film layer in Fig. 1；

Fig. 3 is the structure diagram of keel frame in Fig. 2；

Fig. 4 is two fiber mist eliminators and the first spray assemblies, the connection structure diagram of the second spray assemblies in Fig. 2.

The reference numerals are as follows in Fig. 1-4：

1 equal gas chamber；

2 filter chambers, 21 cartridge filters, 211 cofferdam；

3 except fog chamber, 31 mechanical demisters, 32 fiber demisting film layers, 321 keel frames, 321a frames, 321b diamond plates, 322 fiber mist eliminators, 322a inner cylinders, 322b outer barrels, 322c fabric filter elements, 322d bottom plates, 33 first spray assemblies, 331 first Spray manifold, 332 first spray branch pipes, 34 second spray assemblies, 341 second spray manifold, 342 second spray branch pipes, 35 the Three spray assemblies, spray portion, 352 times spray portions, 36 diversion pipes, 37 water seal members on 351；

4 first drain pipes, 5 second drain pipes, 6 air inlets, 7 gas outlets；

A outlet chambers.

Specific embodiment

In order to which those skilled in the art is made to more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings and have The utility model is described in further detail for body embodiment.

" several " described herein are that exponential quantity is uncertain multiple, are usually two or more；And when using " several " table When showing the quantity of certain several component, do not necessarily mean that the quantity of these components is identical.

The words such as " first " described herein, " second ", " the 3rd ", it is same or like to be for only for ease of description scheme More than two structures or component are not offered as certain particular determination to order.

When containing SO₂Flue gas enter Pneumatic emulsifying processing unit, and after the cooling washing for emulsifying liquid layer, flue gas temperature When degree is dropped to below dew point, the water vapour content in flue gas can be more than saturation value, reach hypersaturated state；And with environment The further reduction of temperature, oversaturated vapor start to condense into fine drop, this allows for purified flue gas entrainment mist Drip particle.

Again complete SO is not yet removed due to also existing in flue gas₂So that certain acidity is presented in the droplets particles, can be referred to as For acid mist particle.Above-mentioned acid mist particle size is small, and quantity is extremely more, and total surface area is big, may be such that the hydroxyl to dissociate in flue gas, sulphur The foreign ions such as acid group, potassium, magnesium are directly dissolved into from gaseous state in above-mentioned acid mist particle；And when above-mentioned foreign ion is tied When brilliant, and coalescence core can be formed together with the fine solid particle particle in flue gas, be dissolved into above-mentioned acid mist particle.

It in fact, to realize the deep purifying of flue gas, seeks to remove above-mentioned acid mist particle so that Pneumatic emulsifying processing dress The particulate matter measured concentration for the gas outlet put reaches 5mg/Nm³Below.However, in traditional Pneumatic emulsifying processing unit, lead to Other device for deep cleaning are often not provided with, are only that several mechanical demisters, the machinery demister institute energy are set in demisting room The minimum grain size of acid-mist-removing particle is removed between 40-50 microns, and is gone for subtle acid mist particle of the grain size below 40 microns Except effect is extremely limited.

In addition, again since flue gas is accelerated in cartridge filter, flue gas leaves filter chamber, into except fog chamber when speed very It is fast, 7-8m/s is can be usually reached, even when arriving at the top except fog chamber, the flow velocity of flue gas can still maintain 2- 3m/s, it is to be understood that the aerodynamic force of flue gas and flow velocity is square directly proportional, higher flue gas flow rate can cause the aerodynamic force of flue gas Rise generates acid mist particle in flue gas etc. the floating support force of bigger, this just further increases demisting chamber interior acid The removal difficulty of mist particle.

At present, it is common in the market to can be used for mainly having bundled tube demister to the device that flue gas carries out deep purifying processing With wet type electrostatic precipitator.

The operation principle of bundled tube demister can be attributed to cohesion, catch and know, bury in oblivion three processes, specifically, first, When flue gas flows into the tubular body of bundled tube demister, flue gas can generate high velocity turbulent flow, promote a large amount of fine mists in flue gas With colliding with each other for dust particles, cohesion becomes the droplet of bulky grain；Secondly, tubular body is equipped with guide vane, and flue gas passes through During guide vane, high tangential velocity can be generated, droplet, dust etc. are got rid of at a high speed the internal face that takes off to tube body, and with it is interior The liquid film of wall surface is in contact, which can retain droplet, dust etc., and realization, which is caught, knows separation；Finally, it is high-speed rotating Liquid film is buried in oblivion after can ensureing homodromous droplet contact, does not generate secondary droplet, and then effectively removes the droplet in flue gas Grain.

Further, to ensure dedusting, defogging effect, multilevel deflector blade in tube body can be also set, extend flue gas In the pipe in vivo residence time, separating effect of the deduster to droplet, dust is improved, so as to fulfill the deep purifying of flue gas.

But by it is substantial amounts of it was verified that above-mentioned bundled tube demister there are the defects of the following aspects：

1) bundled tube demister has strict requirements for the concentration of import flue fog drip and particulate matter, it is however generally that, It is required that the particle concentration in import flue gas is not more than 25mg/Nm³, droplet content is no more than 30mg/Nm³；And Pneumatic emulsifying is handled For device commonly used in power plant, steel mill, sintering plant etc., the Dust Capacity in import flue gas can be usually reached 50mg/m³, considerably beyond The processing capacity of bundled tube demister；

2) bundled tube demister requires flue gas flow rate, and flue gas flow rate is bigger, and bundled tube demister demisting efficiency is higher, Its flue gas flow rate should be at least designed in 5m/s, this may aggravate smoke secondary liquid carry over, offset the efficiency of vortex-flow and defrosting significantly；

3) bundled tube demister is poor for the removal effect of small particle droplet, defogging effect, demisting grain size and tradition Folded plate type machinery demister it is similar, the minimum grain size of droplet can be removed as 30-40 microns, for grain size at 30 microns Following droplet removal effect is limited, even, when the grain size of droplet is less than 20 microns, basic nothing in my way effect；

4) bundled tube demister substantially increases the resistance in processing unit, and the demisting efficiency of bundled tube demister is with leading The inclination angle correlation of blade is flowed, inclination angle is bigger, and demisting efficiency is better, but processing unit internal resistance can be caused to become larger, and influences work The normal production of industry kiln, moreover, bundled tube demister usually can also take the mode of plural serial stage to promote demisting efficiency, through grinding Study carefully, the resistance of individual layer guide vane is 350Pa-800Pa, if setting 3 layers of guide vane, highest in the bundled tube demister The tower internal resistance of 2400Pa will be increased, this will seriously affect the normal operation of desulphurization system；

5) operating condition requirement is stringent, and the material of bundled tube demister is mainly modified version high molecular material, to flue gas The adaptability of temperature is roughly the same with chevron mist eliminator, and destructive temperature is 80 DEG C, 20min, and for Pneumatic emulsifying processing Device, import flue gas sulfur content is relatively low or other special operation conditions under, may there is a situation where that void tower operation (is not absolved Sulphur), at this point, the flue-gas temperature in processing unit easily damages bundled tube demister substantially in 150-300 DEG C of effect.

In summary, when bundled tube demister is applied to Pneumatic emulsifying processing unit, not only it is easily damaged, can also increases The running resistance of desulphurization system, it is difficult to achieve the purpose that flue gas deep purifying is handled.

Wet type electrostatic precipitator and traditional electric precipitator principle are similar, and difference lies in add in wet type electrostatic precipitator There are spray assemblies, and adopt and be rinsed with water the mode of deashing and replace traditional vibration dust-cleaning.Inside wet electrical dust precipitator, due to spray Water mist is entered, dust coalescence, humidification can have been made, dust and water mist are charged together, are collected together, and water mist can be formed on collecting plate Moisture film, moisture film makes collecting plate keep cleaning, also, wet type electrostatic precipitator can be with longtime running.

But by it is substantial amounts of it was verified that above-mentioned wet type electrostatic precipitator there are the defects of the following aspects：

1) demisting efficiency of wet type electrostatic precipitator is related to inlet particle object, droplet amount, to ensure the particulate matter of gas outlet Concentration of emission is no more than 5mg/Nm³Standard, usually require that the dust concentration of desulfurizing tower air inlet no more than 20mg/Nm³, That is the actual particulate matter removing efficiency of wet type electrostatic precipitator can only achieve 70% or so, and in fact, in states such as Japan Family, wet type electrostatic precipitator are generally only as two-stage dust removal, defogging equipment, and the dust requirement of entrance is less than 18mg/Nm³, this Obviously the working environment with Pneumatic emulsifying processing unit is not inconsistent；

2) wet type electrostatic precipitator requires flue gas flow rate, it is however generally that, it is required that the speed of flue gas is not more than in electric field 2m/s requires high, flue gas flow rate even no more than 1-1.5m/s, to ensure the energy such as droplet, particulate matter for efficiency of dust collection Enough to stop time enough in electric field region, to remove, but as previously mentioned, Pneumatic emulsifying processing unit is mainly used for power plant, burns Factory etc. is tied, the exhaust gas volumn of these plant areas is very big, can all generate millions of flue gases per hour, if the design current velocity of flue gas It is low, there is huge wet type electricity defogging equipment with regard to inevitable requirement, so huge equipment obviously can not be shelved at Pneumatic emulsifying Manage the top of device so that wet type electricity defogging equipment cannot be integrally designed with Pneumatic emulsifying desulfurizer (deep desulfuration device), This occupies plant area's area of bigger with regard to inevitable requirement, adds the cost of investment of cleaner；

3) wet type electrostatic precipitator also requires the uniformity of smoke distribution, if the Flow Field Distribution inside power plant is uneven, makes Generate difference in the arresting efficiency of regional dust different in flow rate or droplet, and when air velocity is too low increased dust or The amount of collected of droplet not can overcome the disadvantages that the amount of collected of the dust of reduction, droplet when air velocity is excessively high, in addition, local air flow speed The excessively high liquid-sheet disintegration for being also possible to cause dust plate surface, and trigger drop reentrainment phenomenon, influence the effect of dedusting or demisting Rate；

4) demisting efficiency of wet type electrostatic precipitator and the size of particulate matter are related, and the grain size of particulate matter is smaller, in electric field Middle charge is smaller, and correspondingly, for actuating speed with regard to smaller, wet type electrostatic precipitator can remove the effective grain size area of particulate matter Between at 15-20 microns, it is inefficient for the other particulate matter removing of submicron order；

5) power consumption of wet type electrostatic precipitator is high, and operating cost is high, according to the plate material used (including metal polar plate, soft Property anode, fiberglass/carbon fibre anode) it is different, the water consumption of wet type electrostatic precipitator is also different, mainstream using metal polar plate Wet type electrostatic precipitator must be equipped with water spray circulation system, is calculated by 1,000,000 exhaust gas volumn, needs water consumption tens of per hour Ton, corresponding power consumption is per hour up to 500-600kw；

6) maintenance cost of wet type electrostatic precipitator is higher, no matter using the pole plate of which kind of material, exist it is not corrosion-resistant and The problem of aging, requires according to wet dust removal technology operation and maintenance handbook：Anode collecting plate, cathode line etc. are required to periodically examine It looks into, such as finds that corrosion anode collecting plate in more than 1mm, that is, is needed replacing in more than 0.5mm, cathode line.

In summary, wet type electrostatic precipitator is respectively provided with for particle concentration, property, air flow method in import flue gas etc. Higher requirement, and wet type is electric except demister equipment scale is huge, it is difficult to it is wholely set with Pneumatic emulsifying processing unit, therefore And, it is impossible to it is used cooperatively with Pneumatic emulsifying processing unit, to realize the purpose of flue gas deep purifying processing.

In other words, flue gas deep purifying processing equipment common in the art can not be with Pneumatic emulsifying processing unit It is used in combination.

For this purpose, the utility model embodiment is provided at a kind of new Pneumatic emulsifying with high-efficiency particulate filter Manage device, the high-efficiency particulate filter can be arranged on Pneumatic emulsifying processing unit top, with Pneumatic emulsifying processing unit Integrated design, meanwhile, dust, droplets particles for size fractionated etc. are respectively provided with preferable removal effect, it can be achieved that flue gas Deep purifying processing.

Please refer to Fig.1 a kind of specific embodiment that -4, Fig. 1 is provided by the utility model Pneumatic emulsifying processing unit Structure diagram, Fig. 2 be Fig. 1 in fiber demisting film layer side view, Fig. 3 be Fig. 2 in keel frame structure diagram, Fig. 4 For two fiber mist eliminators in Fig. 2 and the first spray assemblies, the connection structure diagram of the second spray assemblies.

As shown in Figure 1, the utility model provides a kind of Pneumatic emulsifying processing unit, it is equal including what is set gradually from bottom to top Gas chamber 1, filter chamber 2 and except fog chamber 3, equal gas chamber 1 is equipped with air inlet 6, and air inlet 6 can be connected with extraneous flue, except fog chamber 3 Top is equipped with gas outlet 7, for discharging the flue gas Jing Guo purified treatment, except the inside of fog chamber 3 is also axially spaced equipped with several Mechanical demister 31, except the top of fog chamber 3 is equipped with fiber demisting film layer 32, which can cooperative mechanical demister 31, it is removed to removing acid mist particle inside fog chamber 3 etc., to meet discharge standard.

Compared with the prior art, the utility model provides Pneumatic emulsifying processing unit and has the following advantages：

1) main body that the utility model provides flue-gas purification treatment device is Pneumatic emulsifying processing unit, that is to say, that The function of Pneumatic emulsifying technique deep desulfuration is remained, the desulphurizing ability of Pneumatic emulsifying technique is from import smoke property (flue gas Amount, import sulphur concentration, temperature) it influences, import figure can be handled as several milligrams of sulfur dioxide to hundreds of thousands milligram, this is other Any all inaccessiable technique effect of desulfurization technology；

2) the utility model embodiment is arranged on Pneumatic emulsifying using as the fiber demisting film layer 32 of high-efficiency particulate filter The inside of processing unit is, it can be achieved that dust, acid mist particle depth purify the integrated design with desulfurization depth purification, and contain and be somebody's turn to do Fiber demisting film layer 32 removes fog chamber 3 with of the prior art except 3 specification of fog chamber is suitable, will not additionally increase construction space and build Cause this；

3) grain size of particulate matter is not required, since the fiber demisting film layer 32 is using dust removal by filtration, demisting, Preferable removal effect is respectively provided with to acid mist particle of the grain size at 3 microns or more, removal efficiency exists up to 99%, even grain size Less than 1 micron of droplets particles, the fiber demisting film layer 32 can also reach 90% removal efficiency, this is foregoing bundled tube Demister, wet type electrostatic precipitator can not reach；

4) concentration of particulate matter in 6 flue gas of air inlet is not required, particle concentration can be at several milligrams to thousands of millis It is changed in the range of gram, after above-mentioned fiber demisting film layer 32, the particle concentration in the flue gas that gas outlet 7 is discharged It can reach 5mg/Nm³Discharge standard；

5) plant maintenance is simple, and compared with wet type electrostatic precipitator, there is no electrical aspects for above-mentioned fiber demisting film layer 32 Security risk, and there is preferable corrosion-resistant, high temperature resistance, 1200 DEG C of high temperature can be born, that is to say, that this practicality is new Type provides Pneumatic emulsifying processing unit and can allow for void tower operating condition；

6) operating cost is low, and without electricity consumption, which only needs the attachment on periodic cleaning surface, nothing Other energy consumptions are needed, compared to wet type electrostatic precipitator, exemplified by handling the scale of 1,000,000 exhaust gas volumns, power consumption per hour 500kw, by 0.7 yuan/degree electricity, it is contemplated that can be the operating cost that enterprise saves for 3,000,000/year.

In addition, in the specific implementation, it, can be with series multistage fiber demisting film layer to ensure that acid mist particle preferably removes 32, that is, multiple fiber demisting film layers 32 are set, and each fiber demisting film layer 32 can be spaced the axis arranged on Pneumatic emulsifying processing unit To ensure the removal effect of acid mist particle.

Specifically, as shown in Figure 2 and Figure 3, above-mentioned fiber demisting film layer 32 can include keel frame 321 and several fibres Demister 322 is tieed up, keel frame 321 can be arranged on the cross section except fog chamber 3, and each fiber mist eliminator 322 can be installed on Keel frame 321.

Above-mentioned each fiber mist eliminator 322 can be tubular, such as square tube shape, cylindrical shape to increase filter area, that is, increase Flue gas by area, in this way, flue gas can be greatly reduced by the flow velocity of each fiber mist eliminator 322, and according to different designs Index (ratio of height to diameter of fiber mist eliminator 322 etc.), can be by the flow control of flue gas in 0.1-2m/s, significantly to reduce the gas of flue gas Power is more advantageous to the removing of acid mist particle in flue gas.

What is more important, since the aerodynamic force of flue gas is relatively low, the actual resistance of each fiber mist eliminator 322 is smaller, only 400Pa or so, that is to say, that the setting of above-mentioned fiber demisting film layer 32 can't too much increase in Pneumatic emulsifying processing unit The running resistance in portion, can active control unit operating cost；Moreover, because processing unit internal operation resistance is relatively low, without It sets dedicated booster fan that can ensure the normal operation of the Pneumatic emulsifying processing unit, can also save operation power charge etc..

Please continue to refer to Fig. 3, which can include frame 321a and several diamond plate 321b, each diamond plate 321b can be layed on frame 321a, and frame 321a is used to be supported each diamond plate 321b.

The middle part of each diamond plate 321b can be equipped with mounting hole, and the upper end of foregoing each fiber mist eliminator 322 can be with The mounting hole of corresponding diamond plate 321b is fixed on, i.e., each fiber mist eliminator 322 can be hung on keel frame by diamond plate 321b Frame 321, in other words, fiber mist eliminator 322 combine to form demisting device assembly with corresponding diamond plate 321b, and each demisting device assembly is hung Extension is installed on frame 321a.

In fact, above-mentioned each fiber mist eliminator 322 can also be fixed on keel frame 321 by its lower end, specifically may be used With depending on actual installation service condition.

Specifically, above-mentioned fiber mist eliminator 322 can be installed on diamond plate 321b, joint seal of flanges by flange Can be good, the generation of crack, leak source can be avoided, meanwhile, flanged joint, can also easy access, dismounting and more to be detachably connected It changes.The fiber mist eliminator 322 can also be fixed on keel frame 321 by other means, for example, welding, clamping or bolt connect It connects.

Also there is the region for being not provided with diamond plate 321b still using Fig. 3 as visual angle, on the keel frame 321, that is to say, that dragon Also there is the region for not installing fiber mist eliminator 322 on bone frame 321, this subregion needs to be laid with steel plate formation sealing, make The flue gas that must be removed in fog chamber 3 can only be discharged by each fiber mist eliminator 322, be arranged such, it is ensured that in demister 3 Flue gas can be cleaned processing.

Again as shown in figure 4, the fiber mist eliminator 322 can include inner cylinder 322a and outer barrel 322b, above-mentioned inner cylinder 322a, outer Cylinder 322b is in netted, so that flue gas is by can be with fiberfill fibers filter core 322c, the fiber between inner cylinder 322a, outer barrel 322b Filter core 322c can effectively filter the dust in flue gas and acid mist particle.

Specifically, the material of fabric filter element 322c can be fluorinated silicate fiber or ceramic fibre, alternatively, also may be used Other kinds of fibrous material is thought, regardless of using which kind of fibrous material, as long as can ensure to dust, the acid mist in flue gas Particle etc. is effectively filtered, so that the flue gas of gas outlet 7 meets discharge standard.

Further, the first spray assemblies 33, the second spray assemblies 34 can also be included, with to each fiber mist eliminator 322 Outside wall surface, internal face be rinsed, to prevent acid mist particle, particulate, alkali metal ion etc. in fiber mist eliminator 322 Surface crystallization, hinder fiber mist eliminator 322 extended filtration defogging effect.

Above-mentioned first spray assemblies 33 can include the first spray manifold 331 and several first spray branch pipes 332, the first spray The lower section of each fiber mist eliminator 322 can be arranged on by drenching manifold 331, and each first spray branch pipe 332 can be with the first spray manifold 331 are connected, and can correspond and set with each fiber mist eliminator 322, are rushed with the outside wall surface to each fiber mist eliminator 322 It washes；Can also it is multiple first spray branch pipes 332 rinse same fiber mist eliminator 322 jointly, alternatively, one first spray branch pipe 332 rinse multiple fiber mist eliminators 322 simultaneously, and such as embodiment in Fig. 4, one first spray branch pipe 332 can be simultaneously to therewith Two adjacent fiber mist eliminators 322 are rinsed；Regardless of using which kind of correspondence, as long as can ensure each fiber mist eliminator 322 outer surface can effectively be rinsed, in the specific implementation, those skilled in the art can according to actual needs into Row design.

Similarly, above-mentioned second spray assemblies 34 can also include the second spray manifold 341 and several second spray branch pipes 342, the second spray manifold 341 can be arranged on the top of each fiber mist eliminator 322, and each second spray branch pipe 342 can be with Be connected with the second spray manifold 341, the correspondence of each second spray branch pipe 342 and each fiber mist eliminator 322 with it is above-mentioned First spray branch pipe 332 is similar, and this will not be repeated here.

During work, above-mentioned first spray assemblies 33 can be (main with the outside wall surface to fiber mist eliminator 322 with continuous service Working face) carry out continual rinsing；And the second spray assemblies 34 then can intermittent, periodically be run, and its cycle of operation can With suitably long, farthest to reduce possibility of the flue gas by two sub-band water during 322 internal face of fiber mist eliminator.

The bottom of fiber mist eliminator 322 can be equipped with connection inner cylinder 322a, the bottom plate 322d of outer barrel 322b, bottom plate 322d Periphery can be equipped with a circle outer casing or several blocks, with fixed outer cylinder 322b, the middle parts of bottom plate 322d upper surfaces can be with Equipped with interior steel ring or several internal stops, to fix inner cylinder 322a.

Bottom plate 322d and inner cylinder 322a can be enclosed outlet chamber A, bottom plate 322d be also provided with connection outlet chamber A with And the diversion pipe 36 inside Pneumatic emulsifying processing unit, when in use, diversion pipe 36 can will be produced by the second spray assemblies 34 Shower water be expelled to inside Pneumatic emulsifying processing unit；The lower end of diversion pipe 36 can be equipped with water seal member 37, the water seal Component 37 is specifically as follows water seal cup, to carry out water seal to the lower end of diversion pipe 36, so as to avoid except the flue gas in fog chamber 3 is straight Diversion pipe 36 was connected into outlet chamber A and was discharged.

Above-mentioned each mechanical demister 31 can be equipped with the 3rd matched spray assemblies 35, with to each mechanical demister 31 are rinsed, and specifically, the 3rd spray assemblies 35 can include upper spray portion 351 and lower spray portion 352, upper spray portion 351st, lower spray portion 352 can be respectively arranged on top, the lower section of corresponding mechanical demister 31, with to corresponding mechanical demister 31 Upper surface, lower surface is rinsed.

It is to be understood that in the prior art, except also being provided with demister in fog chamber 3, for prevent in flue gas middle dust etc. except Day with fog surface is hardened, fouling, except the flushing component being equipped in fog chamber 3 for above-mentioned demister；But the flushing water is eventually straight It connects and falls into cartridge filter 21, influence the stability of 21 internal emulsification liquid layer of cartridge filter, more seriously, which finally can also lead to It crosses the second drain pipe 5 to flow into external desulfurization slurry circulatory pool, density, pH value to wherein desulfurization slurry cause serious shadow It rings, this can not only have an impact the desulfuration efficiency of Pneumatic emulsifying, and also the preparation of the desulfurizing byproducts such as gypsum, sulfate of ammoniac can be made Into seriously affecting.

To avoid the above problem, scheme of the prior art is to control the rinse water of demister, that is, reduces demisting to the greatest extent The rinse water consumption of device, but this will can cause the decline of demister demisting ability, it is clear that and this is not those skilled in the art institute Pleasure is shown in.

In view of this, the utility model, which provides, is also provided with water proof component in Pneumatic emulsifying processing unit, dexterously will Except generated shower water is isolated with cartridge filter 21 in fog chamber 3, that is to say, that in above-mentioned each spray assemblies operation, without Consider the problems of that water has an impact desulfurization compared with conference.In this way, in the case where external water source is enough, the utility model is implemented Example can suitably increase the water of each spray assemblies, further to enhance the ability that it removes acid-mist-removing particle.

Above-mentioned water proof component can specifically include water deflector and cofferdam 211 annular in shape, and the quantity in the cofferdam 211 can be It is multiple, and correspond and set with each cartridge filter 21.Specifically, cofferdam 211 can be higher by demisting by the upper end of cartridge filter 21 The part of 3 bottom surface of room is formed, and is then stopped to removing the dust-laden shower water collected by 3 bottom of fog chamber, is sprayed to avoid dust-laden Water drenching enters inside cartridge filter 21；Alternatively, each cofferdam 211 or the tubular structure being separately provided, then pass through welding etc. Mode is fixed on except the bottom surface of fog chamber 3, at this point, each cofferdam 211 can be surrounded on corresponding one or more cartridge filters 21 with removing The connected entrance of fog chamber 3, i.e., each cofferdam 211 can surround corresponding connected entrance, to be carried out to the dust-laden shower water for removing 3 bottom of fog chamber Effectively stop.

In addition, it can include water deflector (not shown), water deflector can be arranged on the top of each cartridge filter 21, with right Each cartridge filter 21 is blocked with the connected entrance except fog chamber 3, avoids shower water caused by each spray assemblies in dropping process It falls directly into inside cartridge filter 21.

Above-mentioned water deflectors can be cap-like structure, or other structures, regardless of using which kind of structure, as long as can Cartridge filter 21 and the connected entrance formation except fog chamber 3 are blocked.

During installation, above-mentioned water deflectors can be fixed on except the inner wall of fog chamber 3, can also be fixed on cartridge filter 21；Above-mentioned gear The quantity of water part can be one, or it is multiple, when for it is multiple when, each water deflector can be corresponded with each cartridge filter 21 It sets.

Above-mentioned cofferdam 211 and the setting of water deflector, can be to shower water caused by each spray assemblies and except 3 bottom institute of fog chamber The dust-laden shower water of collection is stopped, is entered to avoid various forms of shower waters inside each cartridge filter 21, is influenced emulsion Layer quality simultaneously finally influences desulfuration efficiency.

It is to be appreciated that above-mentioned water proof component is not limited to above-mentioned cofferdam 211, the form of water deflector, may be set to be Other forms, regardless of which kind of form be designed as, as long as can stop that shower water is flowed into cartridge filter 21.

Except the bottom of fog chamber 3 is also provided with the first drain pipe 4, the dust-laden shower water collected by 3 bottom of fog chamber will be removed Discharge, on the one hand, can to avoid dust-laden shower water except the accumulation of 3 bottom of fog chamber, on the other hand, be also convenient for spray-water into Row centralized processing, secondary cycle utilize.

It the above is only the preferred embodiment of the utility model, it is noted that for the ordinary skill people of the art For member, on the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these improvements and modifications Also it should be regarded as the scope of protection of the utility model.

Claims (10)

1. a kind of Pneumatic emulsifying processing unit, including set gradually from bottom to top equal gas chamber (1), filter chamber (2) and except fog chamber (3), which is characterized in that it is described to be axially inside equipped at intervals with several mechanical demisters (31) except fog chamber (3), it is described to remove fog chamber (3) top is equipped with fiber demisting film layer (32).

2. Pneumatic emulsifying processing unit according to claim 1, which is characterized in that the fiber demisting film layer (32) includes dragon Bone frame (321) and several tubular fiber mist eliminators (322), the keel frame (321) is described in except fog chamber (3) Cross section, each fiber mist eliminator (322) are mounted on the keel frame (321).

3. Pneumatic emulsifying processing unit according to claim 2, which is characterized in that further include several diamond plates (321b), respectively The diamond plate (321b) is layed in the keel frame (321)；

Mounting hole is equipped in the middle part of each diamond plate (321b), phase is fixed in the upper end of the fiber mist eliminator (322) Answer the mounting hole of the diamond plate (321b).

4. Pneumatic emulsifying processing unit according to claim 3, which is characterized in that the fiber mist eliminator (322) includes net The inner cylinder (322a) of shape and outer barrel (322b) are filled with fabric filter element between the inner cylinder (322a), the outer barrel (322b) (322c)。

5. Pneumatic emulsifying processing unit according to claim 4, which is characterized in that the material of the fabric filter element (322c) is Fluorinated silicate fiber or ceramic fibre.

6. Pneumatic emulsifying processing unit according to claim 4, which is characterized in that the first spray assemblies (33) are further included, with The outside wall surface of each fiber mist eliminator (322) is rinsed.

7. Pneumatic emulsifying processing unit according to claim 4, which is characterized in that the second spray assemblies (34) are further included, with The internal face of each fiber mist eliminator (322) is rinsed；

The bottom of the fiber mist eliminator (322), which is equipped with, connects the inner cylinder (322a), the bottom plate of the outer barrel (322b) (322d), the bottom plate (322d) are enclosed outlet chamber (A), bottom plate (322d) company of being additionally provided with the inner cylinder (322a) Lead to the diversion pipe (36) inside the outlet chamber (A) and the Pneumatic emulsifying processing unit, the second spray assemblies (34) institute The shower water of generation can be expelled to inside the Pneumatic emulsifying processing unit by the diversion pipe (36), the diversion pipe (36) lower end is equipped with water seal member (37).

8. according to Pneumatic emulsifying processing unit any one of claim 1-7, which is characterized in that the fiber demisting film layer (32) quantity is multiple, the axially spaced setting of each fiber demisting film layer (32).

9. Pneumatic emulsifying processing unit according to claim 8, which is characterized in that each mechanical demister (31) is equipped with The 3rd matched spray assemblies (35), to be rinsed to each mechanical demister (31).

10. Pneumatic emulsifying processing unit according to claim 9, which is characterized in that the 3rd spray assemblies (35) include Upper spray portion (351) and lower spray portion (352), the upper spray portion (351), the lower spray portion (352) are respectively arranged on accordingly Top, the lower section of the machinery demister (31).