CN207137624U - A kind of industrial air purifying system - Google Patents

Abstract

The utility model discloses a kind of industrial air purifying system.For the main materialization of uncontrollable discharge flue dust and particle size distribution characteristics caused by industrial processes, the utility model is using shutter+efficiently separate frid+electrostatic integration tertiary granule catching method, it is proposed that spray+liquid film rinses two grade particles ashman's skills, the final efficient capture for realizing industrial processes inorganization flue dust, thoroughly improves operating environment；On the basis of " shutter+efficiently separate frid+electrostatic integration tertiary granule capture " and " spray+liquid film rinses two grade particles deashings ", dust granules recycling is further realized using " filtering concentrate+press filtration particulate material recovery " and industrial water circulation utilizes.

Description

A kind of industrial air purifying system

Technical field

The utility model belongs to atmosphere pollution and administers field, and in particular to dust purification caused by uncontrollable discharge place Dedusting technology field, more particularly to a kind of industrial air purifying system.

Background technology

Formed during industrial production (industry such as metallurgy, exploitation, machine-building, refractory material processing, weaving, packaging) It industrial dust, can swim for a long time in air of workplace, be to pollute operating environment, damage the important of labourer's health Occupational, a variety of occupational lung diseases including pneumoconiosis can be caused.During " 13 ", Chinese Ministry of Environmental Protection determines Fixed pollutant emission standard to the industry such as steel, building materials, coloured, thermoelectricity, boiler, coking and《Atmosphere pollution comprehensive discharge Standard》Revised, increased " uncontrollable discharge control measure ", ensure that production process dust emission reaches national environmental protection and safety Sanitary standard.

Uncontrollable discharge is mainly that atmosphere pollution is not less than 15 meters of random row by aiutage, or aiutage Put, it is widely present in the industrial circles such as steel, stone pit, metallurgy, power plant, stockyard, and Work places material is stacked, be open defeated Pipeline, escaping gas leakage etc. is sent all to cause uncontrollable discharge pollution problem.Existing uncontrollable discharge treatment measures master It is following several：1. all kinds of particle agglomeration technologies promote particle natural subsidence, a kind of nothing as disclosed in CN201310732184.6 Tissue discharge ultra-fine grain dust foam suppressing dust with dry mist technique, a kind of mist dust remover disclosed in CN201310128862.8 and A kind of biology disclosed in CN201620392970.5 receives film dust suppression desulfation dust-extraction device；2. filtering technique, it is representational just like Filter assemblies, filter and dust arrester disclosed in CN201610080302.3, one kind disclosed in CN201310671444.3 Industrial waste gas filter collector, and a kind of electric furnace smoke-discharging dust-eliminating device disclosed in CN201410693729.1；3. electrostatic precipitation Technology, a kind of roof type electrostatic precipitation air exhausting device as disclosed in CN201320497675.2, and CN201310328223.6 Disclosed a kind of industrial waste gas electrostatic precipitator etc..

In uncontrollable discharge treatment measures, the advantages that industrial staticelectricity deduster is with its low pressure loss, high efficiency low operating cost It is used widely in all kinds of large scale industry production processes especially metallurgy, casting industry.But between electrostatic dust collection equipment generally uses Every mechanical rapping cleaning dust mode to ensure equipment safety operation, such as a kind of industrial waste gases of patent application CN201310328223.6 Electrostatic precipitator, CN200420017200.X Ore Smelter Roof Electric Dust-Collecting Equipments.However, in electrostatic precipitator use and using machine Particle secondary mixing easily occurs during tool vibration dust-cleaning and enters air, causes equipment outlet particulate emission exceeded, although or having Minority uses wet type deashing, but equipment intermitten service and flushing waste emission problem in deashing process be present, while equipment is most Heavy, bulky using steel construction piece, equipment, floor space is big, and electrostatic precipitation efficiency also needs further to be improved.

In addition, raw material stores and transports in dust, such as pelletizing production caused by steel, metallurgical industry production process, raw material is broken, Dust caused by the processes such as dispensing batch mixing, crushing and screening, analysis result show：Dust concentration in air is spilt into instantaneously to may be up to Tens grams~a few hectogram/cubic meters, 1~1000 micron of particle size distribution, Iron concentrate content is up to 90%, this part dust with Uncontrollable discharge not only pollutes into air, and causes the wasting of resources and cost allowance, if can be recycled, There are larger consumption reduction potentiality for reducing ton ore deposit cost.

Utility model content

The technical problem faced for uncontrollable discharge prevention and control, the utility model for steel, stone pit, metallurgy, power plant, The different industries uncontrollable discharge flue dust composition and composition characteristic of the industrial circles such as stockyard, propose the easy-operating particle of simple possible Control measure and dust recycle technique, and this improves production operation environment, had conscientiously for significantly cutting down uncontrollable discharge Effect lifting efficiency of energy utilization, promote ambient air quality lifting significant.

One of the purpose of this utility model is to be directed to the main thing of uncontrollable discharge flue dust caused by above-mentioned industrial processes Change and particle size distribution characteristics, it is proposed that a kind of industrial air purifying system.The utility model is using shutter+efficiently separate groove Plate+electrostatic integration tertiary granule catching method, propose that spray+liquid film rinses two grade particles ashman's skills, it is final to realize industry The efficient capture of production process inorganization flue dust, thoroughly improves operating environment.

The two of the purpose of this utility model are in prevention and control for uncontrollable discharge flue dust caused by above-mentioned industrial processes Recycling problem on the basis of dedusting, there is provided a kind of industrial air purifying system, " shutter+efficiently separate frid+ On the basis of electrostatic integration tertiary granule capture " and " spray+liquid film rinses two grade particles deashings ", " mistake is further used Filter concentrate+press filtration particulate material recovery " realizes dust granules recycling and industrial water circulation utilizes.

The three of the purpose of this utility model are the application of above-mentioned industrial air purifying system.

Specifically, the utility model discloses technical scheme once：

First, the utility model discloses a kind of industrial air purifying system, including multiple-effect dust arrester, flushing dress Put, multiple-effect dust arrester includes shutter dedusting section, efficiently separates frid dedusting section, electrostatic precipitation unit, and bottom is provided for Collect the waste collection structure of waste liquid；Multiple-effect dust arrester also includes blower fan, and the gas that blower fan is arranged on multiple-effect dust arrester enters Mouthful or gas vent position, containing dusty gas successively through shutter dedusting section, efficiently separate frid dedusting section, electrostatic precipitation unit Carry out dedusting；Flusher includes being sprayed device and moisture film flusher, device is sprayed by spraying mode, by hundred Leaf window dedusting section is rinsed to the waste collection structure of multiple-effect dust arrester bottom with the particle for efficiently separating the adhesion of frid dedusting section, By the way of the positive plate of drop infiltration electrostatic precipitation unit is continued, forming uniformly flushing moisture film will capture moisture film flusher Particle to positive plate is rinsed into waste collection structure.

Efficiently separate frid dedusting section and be staggered by multiple rows of same specification channel-section steel and formed, channel-section steel opening direction is consistent, with row Channel-section steel equidistant arrangement, with arrange two neighboring channel-section steel be smaller than or it is high equal to the waist of channel-section steel, the distance of levels channel-section steel is less than It is or wide equal to the leg of channel-section steel.

Preferably, electrostatic precipitation unit also includes expanding high pressure generator, such as high voltage power supply.

Preferably, it is sprayed device to be made up of water pump, valve, shower, nozzle, shower includes supervisor and multiple Manage, nozzle is installed on branch pipe.

Preferably, moisture film flusher includes moisture film flushing supervisor, anode water distributor, and moisture film rinses supervisor and some anodes Water distributor is connected, and anode water distribution bottom of the tube is provided with apopore, and apopore goes out the positive plate of water infiltration electrostatic precipitation unit, is formed Moisture film is uniformly rinsed to be rinsed the particle for capturing positive plate.

Preferably, waste collection structure is waste liquid tank.In addition, waste collection structure is additionally provided with electric heater unit, for preventing Winter waste liquid is controlled to freeze.

Blower fan is preferably diagonal flow fan.Preferably, diagonal flow fan is arranged on the gas vent position of multiple-effect dust arrester.

Preferably, shutter dedusting section in multiple-effect dust arrester, efficiently separate frid dedusting section, electrostatic precipitation unit under And upper setting, gas flow from bottom to top in multiple-effect dust arrester, dust removing effects are more excellent.

Secondly, industrial air purifying system disclosed in the utility model, in addition to waste liquid enrichment facility, filter-pressing device, Clear liquid circulation line, waste collection structure are concentrated by waste liquid enrichment facility, then handled through filter-pressing device, filter cake recovery Recycling, clear liquid is back to flusher through clear liquid circulation line and followed caused by waste liquid enrichment facility and filter-pressing device Ring utilizes.

Preferably, for dust waste liquid the characteristics of, the utility model carry out the concentration of waste liquid, multitube using Multpipe filter Filter is made up of waste drains pump, filter, dope discharge pipe, backwashing pump.

Preferably, filter-pressing device is plate and frame filter press, and the filter cake isolated enters raw material cabin and carries out recycling recovery.

Preferably, industrial air purifying system disclosed in the utility model, in addition to centralized control system, moisture film rinse Device, spray irrigation device, electric heater unit, waste liquid enrichment facility, filter-pressing device, blower fan can lead to according to the condition of pre-setting Cross centralized control system and realize automatic start-stop.

In addition, the invention also discloses above-mentioned industrial air purifying system in dedusting and dust recycling recovery profit Application in.

Based on the application, the utility model discloses a kind of control technique of uncontrollable discharge flue dust, it uses above-mentioned work Industry air cleaning system, it is characterised in that：

Uncontrollable discharge flue dust with ambient windstream under the air draught of blower fan or blowing effect, into entering for multiple-effect dust arrester At mouthful；

More than 50 microns particulate matters are intercepted in shutter dedusting section primary dust removing is realized at equipment importation；

Dust-contained airflow after shutter dedusting section, which flows through, efficiently separates frid dedusting section, and more than 10 microns particulate matters are blocked Cut and two-stage dust removal is carried out before the electrostatic field of electrostatic precipitation unit；

Remaining relatively fine particle thing enters the electrostatic field of electrostatic precipitation unit, in the presence of high voltage power supply, fine particle lotus Anode surface is moved in the presence of electric field force after electricity by efficient capture, realizes 3-stage dust-removal, the air-flow after processing meets clear Clean emission request is discharged；

Shutter dedusting section and the dust particles for efficiently separating the capture of frid dedusting section, sprayed by being sprayed device Flushing water rinse into waste liquid structure；Dust particles on electrostatic precipitation unit anode are flushed to useless by moisture film flusher In liquid collection structure, realize that waste liquid collects.

Preferably, the control technique of the uncontrollable discharge flue dust also includes：The waste liquid collected in waste collection structure leads to Waste liquid enrichment facility is crossed by preliminary concentrate, dope concentration is about 10-20%, the clear liquid access moisture film flusher after concentrate processing Entrance, recycled, dope enters filter-pressing device, and the filter cake isolated enters raw material cabin and carries out recycling recovery profit With the entrance for the clear liquid access moisture film flusher that filter-pressing device is isolated is recycled.

The utility model achieves following beneficial effect：

(1) after the processing of the utility model industrial air purifying system, equipment exports without exceeded uncontrollable discharge flue dust Discharge, no reentrainment of dust, gas meet that flue gas cleans emission request.The utility model is using shutter+efficiently separate frid+quiet Electrical integrated tertiary granule catching method, more than 50 microns particulate matters of particle diameter are intercepted in equipment importation using shutter, adopted More than 10 microns particulate matters are intercepted before electrostatic field with frid is efficiently separated, it is high that remaining relatively fine particle thing enters electrostatic field Effect capture, passes through the depositing dust mode step by step rationally set so that equipment is exported without discharge beyond standards, and is rushed by spray+liquid film Two grade particles ashman's skills are washed, further dust suppression reduces equipment outlet dust spilling and issuable discharge beyond standards.

(2) the utility model is directed to the characteristics of uncontrollable discharge flue dust and is designed dedusting, and efficiency of dust collection is high.This practicality is new Type sets depositing dust mode step by step and effective deashing technique, initial dust-contained airflow (tens grams of concentration~a few hectogram/cubic meters) warp Air-flow (hundreds of milligrams of concentration~several grams/cubic metre), which enters, after the processing of shutter dedusting section efficiently separates frid dedusting section, by 10 Particulate matter more than micron intercepts, and air-flow (milligram/cubic metre of concentration tens milligrams~hundreds of) now is more beneficial for quiet Effective Electrostatic Absorption dedusting of electric precipitation unit (not only avoid the excessive dust stratification of positive plate, and reduce wind speed, relative extension Residence time of the dust in electrostatic field, and reduce the influence of dust concentration, granularity to corona characteristic, lifting positive plate gathers dust Efficiency).

(3) 3-stage dust-removal technique of the present utility model and two-stage deashing technique, equipment is simply efficient, and integrated degree is high, Device is light, may be arranged at the top of Workplace, side wall, outside or inside, avoids existing cleaner weight, bulky The problem of；On the basis of the total capture rate of lifting particulate matter, the live load of follow-up electrostatic field is further reduced, is reduced Industrial consumption energy.

(4) the utility model not only effectively realizes the control of uncontrollable discharge flue dust, and combines the utility model The characteristics of dedusting, deashing technique, by filtering concentrate+press filtration particulate material recovery process, realize dust granules (especially steel Raw material stores and transports in dust, such as pelletizing production caused by iron, metallurgical industry production process, raw material is broken, dispensing batch mixing, broken sieve Grade dust caused by process) recycling recycle, and furthermore achieved that recycling for part water process, be bonded work Industry produce reality, possesses wide market application foreground.

Brief description of the drawings

The industrial air purifying system schematic diagram of Fig. 1 embodiments 1

The industrial air purifying system schematic diagram of Fig. 2 embodiments 2

Fig. 3 efficiently separates frid dedusting section section and flow field schematic diagram

1 it is diagonal flow fan in figure, 2 be electrostatic precipitation unit, 3 is high voltage power supply, 4 to efficiently separate frid dedusting section, 5 be Shutter dedusting section, 6 be waste liquid tank, 7 be electric heater unit, 8 be waste drains pump, 9 be moisture film flusher, 10 be sprayed dress Put, 11 be water pump, 12 be Multpipe filter, 13 be slush pump, 14 be filter press.

Embodiment

It is as follows that the utility model enumerates embodiment, and the utility model is described in further detail, but of the present utility model Embodiment not limited to this.For those skilled in the art, the utility model can have a various modifications and variations, it is all Within the spirit and principles of the utility model, any modification, equivalent substitution or improvement for being made etc., it is new to should be included in this practicality Within the protection domain of type.

It is new just as the technical problem described in the utility model background technology, faced for uncontrollable discharge prevention and control, this practicality Different industries uncontrollable discharge flue dust composition and composition of the type for industrial circles such as steel, stone pit, metallurgy, power plant, stockyards Characteristic, propose that the easy-operating Grain size controlling measure of simple possible and dust recycle technique.

An embodiment of the present utility model discloses a kind of industrial air purifying system, including multiple-effect dedusting Device, flusher, multiple-effect dust arrester include shutter dedusting section, efficiently separate frid dedusting section, electrostatic precipitation unit, bottom Portion is provided for collecting the waste collection structure of waste liquid；Multiple-effect dust arrester also includes blower fan, and blower fan is arranged on multiple-effect dedusting dress The gas access or gas vent position put, containing dusty gas successively through shutter dedusting section, efficiently separate frid dedusting section, quiet Electric precipitation unit carries out dedusting；Flusher includes being sprayed device and moisture film flusher, is sprayed device and passes through spray Leaching mode, shutter dedusting section and the particle for efficiently separating the adhesion of frid dedusting section are rinsed into giving up to multiple-effect dust arrester bottom Liquid collection structure, moisture film flusher form uniformly punching by the way of the positive plate of drop infiltration electrostatic precipitation unit is continued Wash water film rinses the particle for capturing positive plate into waste collection structure.

Shutter dedusting section described in the utility model is shutter inertia dust-removing device, is impacted by dust-containing air stream in blinds On window baffle plate, drastic shift occurs for airflow direction, is acted on by the inertia force of grit in itself, it is separated with air-flow.This practicality Novel window blind dedusting section can intercept more than 50 microns particulate matters, preliminary treatment cause tens grams of concentration~a few hectograms/cube Rice dust-contained airflow purifies smaller to the dust-contained airflow of hundreds of milligrams of concentration~several grams/cubic metre, the processing procedure pressure loss.

Efficiently separate frid dedusting section and be staggered by multiple rows of same specification channel-section steel and formed, channel-section steel opening direction is consistent, with row Channel-section steel equidistant arrangement, with arrange two neighboring channel-section steel be smaller than or it is high equal to the waist of channel-section steel, the distance of levels channel-section steel is less than Or it is wide equal to the leg of channel-section steel, to run into the staggered channel-section steel of another row when passing the gas through with the gap for arranging two neighboring channel-section steel Turned to so as to produce air-flow, by the effect of inertia force, centrifugal force so that dust granules separate, its section and flow field schematic diagram As shown in Figure 3.

The newly-designed frid dedusting section that efficiently separates of the utility model is a kind of efficient inertial dust separator, and it is unique recessed Slot structure make it that air-flow steering property is stronger, and it is compared to conventional reversible type inertial dust separator, for purifying density and particle diameter slightly Big metal or mineral dust (more than 10~20 μm) dust removing effects are good, especially in the utility model shutter dedusting section On the basis of having carried out primary dust removing, it is for the granule dust purification efficiency in 10-50 μ ms up to more than 90%.This reality With new and effective separation frid dedusting section 100~1000Pa of the pressure loss, dusty gas wind speed is reduced, so as to follow-up electrostatic field The dedusting relative residence time for extending dust in electrostatic field, lifting electrostatic precipitation efficiency.

The operation principle of the utility model electrostatic precipitation unit is to ionize flue gas using high voltage electric field, in air-flow Dust charged separates under electric field action with air-flow, and usual negative electrode is made up of the plain conductor of different section shape, and anode is not by Metallic plate with geometry is made (positive plate, also known as collecting plate).Electrostatic precipitation unit also includes expanding high pressure generator, such as high Voltage source.

The use middle-jiao yang, function of the spleen and stomach pole plate dust stratification of existing electrostatic precipitator is serious, has a strong impact on the dust-collecting efficiency of pole plate and aggravates anti-electricity The generation of dizzy phenomenon, and reentrainment of dust phenomenon of the dust in electric field is serious, and dust stratification may be arranged with air-flow is outer, so as to make (particle secondary mixing also easily occurs in electrostatic precipitator during mechanical rapping cleaning dust to enter air and cause outer row to surpass into outer row is exceeded Mark), while dusty gas property (pressure, temperature etc.) and Dust Characteristics (concentration, the granularity of the dust to be captured in air-flow) etc. Also extreme influence electrostatic field efficiency of dust collection, for above-mentioned analysis, the utility model by optimize improve dust capture rate for the purpose of, With reference to the characteristics of uncontrollable discharge dust, from dusty gas property (pressure drop), Dust Characteristics (concentration, the granularity of dust), industry Power consumption is comprehensive optimize it is combined improved, finally using shutter+efficiently separate frid+electrostatic integration tertiary granule capture side Method, realize whole efficient captures of dust granules.

In addition, the utility model takes effective measures, the removing of capture particle (dust stratification), Er Qietong are not only realized Crossing spray+liquid film flushing+waste collection technique (the especially timely collection of spray+waste liquid) realizes dust suppression in processing procedure Effect.

In the utility model preferred embodiment, it is sprayed device and is made up of water pump, valve, shower, nozzle, sprayed Pipe includes supervisor and multiple branch pipes, and nozzle is provided with branch pipe.In shutter dedusting section and efficiently separate frid dedusting Duan Juntong Spray mode is crossed, the particle adhered to rinses.Water pump is forced through high pressure atomizing nozzle and forms spray, effectively by hundred Leaf window dedusting section is rinsed with the dust granules for efficiently separating frid dedusting section, improves efficiency of giving a dinner of welcome.The utility model sprays Another effect of flusher is that high-temperature smoke is carried out into flame-out cooling, with anti-tamper follow-up equipment, is easy to industry security to give birth to Production.

In a preferred embodiment of the present utility model, moisture film flusher includes moisture film and rinses supervisor, anode water distribution Pipe, moisture film rinse supervisor and are connected with some anode water distributors, and anode water distribution bottom of the tube is provided with apopore, and apopore goes out water infiltration The positive plate of electrostatic precipitation unit, form uniformly flushing moisture film and be rinsed the particle for capturing positive plate.

Waste collection structure is that lightness considers preferably waste liquid tank.In addition, waste collection structure is additionally provided with electrical heating Device, freeze for preventing and treating winter waste liquid.

In preferred embodiment, blower fan is diagonal flow fan.Diagonal flow fan is mainly by impeller, casing, import current collector, outlet Flow deflector, motor component composition, may be such that gas had not only done centrifugal motion but also axially moved, in shell the motion of air be mixed with Two kinds of forms of motion of axle stream and centrifugation, compared to axial flow blower or centrifugal blower, (both can also realize this motion mode substantially Blower effect), not only pressure is high, air quantity is big for it, and flow perturbation is stronger, with two sections of inertial dust collection sections of the utility model (shutter dedusting section, efficiently separating frid dedusting section) coordinates dust removing effects more excellent.Preferably, diagonal flow fan is arranged on multiple-effect and removed The gas vent position of dirt device.

In preferred embodiment, it is contemplated that the utility model uses two-stage inertial dust collection, shutter in multiple-effect dust arrester Dedusting section, efficiently separate frid dedusting section, electrostatic precipitation unit is set from bottom to top, gas can in multiple-effect dust arrester from Lower and upper flowing, by the multiple action of inertia force, centrifugal force and gravity, further improve dust granules separative efficiency.

The work that a kind of dust granules recycling recycles is also disclosed in a specific embodiment of the present utility model Industry air cleaning system, in addition to including above-mentioned multiple-effect dust arrester and flusher, including waste liquid enrichment facility, press filtration dress Put, clear liquid circulation line, waste collection structure is concentrated by waste liquid enrichment facility, then handled through filter-pressing device, filter cake Resource recoveryization utilizes, and clear liquid caused by waste liquid enrichment facility and filter-pressing device is back to flusher through clear liquid circulation line and entered Row recycles.

In embodiment of the present utility model, spray+liquid film rinses two grade particles purge modes, using waste collection mode And subsequent filter concentrate+press filtration particulate material recovery, effective deashing is not only realized, and avoid conventional drying and receive ash processing Caused airborne dust problem again, collected using waste liquid mode and achieve good anti-dust effect, and further effectively rank Filter concentrate+press filtration particulate material resource recycling is taken over, realizes effective configuration of function.

In preferred embodiment, waste liquid enrichment facility is Multpipe filter, and Multpipe filter is by waste drains pump, filter, dense Liquid discharge pipe, backwashing pump are formed, and the characteristics of for dust waste liquid, the utility model carries out the dense of waste liquid using Multpipe filter Contracting, in addition, the continuous concentrate function of Multpipe filter, on the one hand maintains the circulation supply of flushing water in moisture film flusher, separately On the one hand the start and stop frequency of follow-up filter-pressing device (plate and frame filter press) is reduced, saves industrial consumption energy.

In preferred embodiment, filter-pressing device is plate and frame filter press, and the filter cake isolated enters raw material cabin and carries out recycling.

In preferred embodiment, industrial air purifying system disclosed in the utility model, in addition to centralized control system, Moisture film flusher, be sprayed device, electric heater unit, waste liquid enrichment facility, filter-pressing device, blower fan can be according to setting in advance Put condition and automatic start-stop is realized by centralized control system.

Embodiment 1

An embodiment of the present utility model is provided with reference to Fig. 1.

As shown in Figure 1, dust-contained airflow caused by industrial processes (tens grams of concentration~a few hectogram/cubic meters) is 1 5 shutter dedusting sections are initially entered under the air draught effect of diagonal flow fan, more than 50 microns of particulate matter are intercepted, shutter The dust of dedusting section accumulation enters 6 waste liquid tanks in the presence of 10 spray irrigation devices, and the water of 10 spray irrigation devices derives from Plant area's process water carries out moisturizing through 11 water pumps；Then air-flow (hundreds of milligrams of concentration~several grams/cubic metre) efficiently separates groove into 4 Plate dedusting section, more than 10 microns of particulate matter is largely intercepted, efficiently separate the dust of frid dedusting section interception 10 Enter waste liquid tank 6 in the presence of spray irrigation device；Air-flow (milligram/cubic metre of concentration tens milligrams~hundreds of) now enters 2 electrostatic precipitation units, high voltage is provided for the discharge electrode of 2 electrostatic precipitation units by 3 high voltage power supplies, 2 electrostatic precipitation units it is quiet Electric field produces anion and electronics, and electronics collides with fine particle, in the presence of electric field force, completes Electrostatic Absorption process, clearly Clean gas through outlet discharge.The positive plate dust stratification of 2 electrostatic precipitation units rinses particulate matter to 6 waste liquids through moisture film flusher 9 Groove, the waste liquid for rinsing blanking herein efficiently separate the dust of frid dedusting section with 5 shutter dedusting sections and 4 and collected.In 6 waste liquid tanks 7 electric heater units are set, and waste liquid when preventing and treating winter operation in 6 waste liquid tanks freezes, and influences equipment use.

Using the air cleaning system, equipment outlet meets flue gas cleaning discharge without discharge beyond standards, no reentrainment of dust, gas It is required that and consume energy less than single electrostatic precipitator.

Embodiment 2

An optimal embodiment of the present utility model is provided with reference to Fig. 2.

As shown in Figure 2, dust-contained airflow caused by metallurgical industry production process (gram/cubic metre of concentration 10 grams~800) is 1 5 shutter dedusting sections are initially entered under the air draught effect of diagonal flow fan, more than 50 microns of particulate matter are intercepted, dust exists Enter 6 waste liquid tanks in the presence of 10 spray irrigation devices, 10 water for being sprayed devices derive from 12 Multpipe filters clear liquid, The clear liquid and plant area's process water of 14 filter presses carry out moisturizing through 11 water pumps；Then air-flow (gram/cubic metre of concentration 100 milligrams~10) Frid dedusting section is efficiently separated into 4, more than 10 microns of particulate matter is largely intercepted, the dust of interception is in 10 sprays Enter 6 waste liquid tanks in the presence of flusher；Air-flow (milligram/cubic metre of concentration 10 milligrams~200) now removes into 2 electrostatic Dirt unit, high voltage is provided by discharge electrode of 3 high voltage power supplies for electrostatic precipitation unit 2, promotes discharge electrode to ionize ambient gas, Anion and electronics are produced, electronics collides with fine particle, in the presence of electric field force, completes Electrostatic Absorption process, cleans gas Body is discharged into air.9 moisture film flushers rinse the positive plate particulate matter of 2 electrostatic precipitation units to 6 waste liquid tanks, with 5 shutters Dedusting section and 4 dusts for efficiently separating frid dedusting section collect.Waste liquid in 6 waste liquid tanks enters 12 in the presence of 8 waste drains pumps Multpipe filter, it is pumped into after waste liquid is by concentrate in 12 Multpipe filters through 13 mud in 14 filter presses, ash cake enters former Expect that base resourceization utilizes, clear liquid carries out anode flushing through being pumped back to 9 moisture film flushers.7 electrical heating are set to fill in 6 waste liquid tanks Put, waste liquid when preventing and treating winter operation in 6 waste liquid tanks freezes, and influences waste water concentrate and solids is collected.

Using the air cleaning system, not only effectively improve operating environment, and particle resource changes recycling, and At least cost-effective yuan/year of 5-10 ten thousand.

Claims (10)

1. a kind of industrial air purifying system, it is characterised in that including multiple-effect dust arrester, flusher, multiple-effect dedusting dress Put including shutter dedusting section, efficiently separate frid dedusting section, electrostatic precipitation unit, bottom is provided for collecting the waste liquid of waste liquid Collection structure；Multiple-effect dust arrester also includes blower fan, and blower fan is arranged on the gas access or gas vent position of multiple-effect dust arrester Put, containing dusty gas successively through shutter dedusting section, efficiently separate frid dedusting section, electrostatic precipitation unit carry out dedusting；Rinse Device includes being sprayed device and moisture film flusher, is sprayed device by spraying mode, by shutter dedusting section and The particle for efficiently separating the adhesion of frid dedusting section is rinsed to the waste collection structure of multiple-effect dust arrester bottom, moisture film flusher By the way of the positive plate of lasting drop infiltration electrostatic precipitation unit, formed and uniformly rinse that moisture film will capture positive plate Grain is rinsed into waste collection structure；

Efficiently separate frid dedusting section and be staggered by multiple rows of same specification channel-section steel and formed, channel-section steel opening direction is consistent, with emissions groove steel Equidistant arrangement, with arrange two neighboring channel-section steel be smaller than or it is high equal to the waist of channel-section steel, the distance of levels channel-section steel is less than or waited It is wide in the leg of channel-section steel.

2. industrial air purifying system according to claim 1, it is characterised in that be sprayed device by water pump, valve Door, shower, nozzle are formed, and shower includes supervisor and multiple branch pipes, and nozzle is provided with branch pipe.

3. industrial air purifying system according to claim 1, it is characterised in that moisture film flusher rushes including moisture film Supervisor, anode water distributor are washed, moisture film rinses supervisor and is connected with some anode water distributors, and anode water distribution bottom of the tube is provided with water outlet Hole, apopore go out the positive plate of water infiltration electrostatic precipitation unit, form uniformly flushing moisture film and enter the particle for capturing positive plate Row rinses.

4. industrial air purifying system according to claim 1, it is characterised in that waste collection structure is waste liquid tank.

5. industrial air purifying system according to claim 1, it is characterised in that waste collection structure is additionally provided with electricity and added Thermal.

6. industrial air purifying system according to claim 1, it is characterised in that blower fan is diagonal flow fan；Oblique flow wind Machine is arranged on the gas vent position of multiple-effect dust arrester.

7. industrial air purifying system according to claim 1, it is characterised in that shutter removes in multiple-effect dust arrester Dirt section, efficiently separate frid dedusting section, electrostatic precipitation unit is set from bottom to top, gas in multiple-effect dust arrester from bottom to top Flowing.

8. industrial air purifying system according to claim 1, it is characterised in that industrial air purifying system also wraps Include waste liquid enrichment facility, filter-pressing device, clear liquid circulation line, the waste liquid in waste collection structure is carried out by waste liquid enrichment facility Concentration, is then handled through filter-pressing device, and filter cake Resource recoveryization utilizes, and clear liquid caused by waste liquid enrichment facility and filter-pressing device passes through Clear liquid circulation line is back to flusher and recycled.

9. industrial air purifying system according to claim 8, it is characterised in that waste liquid enrichment facility filters for multitube Device；Filter-pressing device is plate and frame filter press.

10. industrial air purifying system according to claim 8 or claim 9, it is characterised in that industrial air purifying system Also include centralized control system, moisture film flusher, be sprayed device, waste liquid enrichment facility, filter-pressing device, blower fan according to Pre-set condition and automatic start-stop is realized by centralized control system.