CN105967463A - Equipment for purifying sewage and waste gas generated in iron and steel industry - Google Patents

Equipment for purifying sewage and waste gas generated in iron and steel industry Download PDF

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Publication number
CN105967463A
CN105967463A CN201610582178.0A CN201610582178A CN105967463A CN 105967463 A CN105967463 A CN 105967463A CN 201610582178 A CN201610582178 A CN 201610582178A CN 105967463 A CN105967463 A CN 105967463A
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sewage
waste gas
layer
inlet pipe
treatment box
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汪枫
崔晓辉
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • B01D47/021—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by bubbling the gas through a liquid bath
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/507—Sulfur oxides by treating the gases with other liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/68—Halogens or halogen compounds
    • B01D53/685—Halogens or halogen compounds by treating the gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75—Multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81—Solid phase processes
    • B01D53/82—Solid phase processes with stationary reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84—Biological processes
    • B01D53/85—Biological processes with gas-solid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/20—Organic adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/202—Single element halogens
    • B01D2257/2027—Fluorine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/204—Inorganic halogen compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/12—Halogens or halogen-containing compounds
    • C02F2101/14—Fluorine or fluorine-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C02F2101/203—Iron or iron compound
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/14—Maintenance of water treatment installations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Molecular Biology (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

The invention discloses equipment for purifying sewage and waste gas generated in the iron and steel industry. The equipment comprises a gas inlet pipe, a water inlet pipe, a treatment tank, a water outlet pipe, a gas outlet pipe and a membrane pool; the interior of the treatment tank comprises four layers sequentially including the purification layer, the adsorption layer, the defluorination layer and the sewage and waste gas layer from top to bottom, wherein the purification layer comprises immobilized microorganism spheres; the exterior of the treatment tank is provided with a magnetic field generator. According to the equipment for purifying the sewage and the waste gas generated in the iron and steel industry, purified sewage and purified waste gas are mixed to enter the membrane pool, the sewage can be purified by a membrane assembly arranged in the membrane pool, membrane pollution can be prevented through scouring of the waste gas, and the effect that the waste gas scours the membrane assembly is best when the ratio of the sewage to the waste gas is set to be 1:2-1:1; iron in the sewage and sulfur dioxide in the waste gas can react in the treatment tank to generate solid-state ferrous sulphate to be deposited; the immobilized microorganism spheres can remove nitric oxides and particulate matter which are contained in the sewage and the waste gas; the adsorption layer adopts coal slag and straw, and therefore energy conversation and environmental friendliness are achieved.

Description

Purify the equipment of the sewage waste gas that steel industry produces
Technical field
The present invention relates to process the field of the sewage waste gas that steel industry produces, be specially the equipment purifying the sewage waste gas that steel industry produces.
Background technology
In recent ten years, steel industry has obtained rapid development, and the pollution to environment is the most increasingly severe, environmental problem manufactured by steel industry causes the attention of people the most day by day, it is big that steel industry pollutant have discharge capacity, and the feature of complicated component, the technical difficulty of improvement is the biggest.
Steel industry has discharge volume of smoke and the various stoves of waste gas, steel industry has at the major pollutants of the waste gas of steel-refining process: containing sulfur dioxide flue gas, smoking gas containing fluorine, nitrogen-containing oxide flue gas and solid particulate matter etc., the discharge amount of exhaust gas of iron and steel is big, pollutes wide；Temperature is high, complicated component, and dust granules is thin, and absorption affinity is strong；The exhaust gas flow that steel industry produces is big, and mostly is ash-laden gas, therefore when purifying waste gas, should first carry out dedusting operation；The dust collection method that steel industry uses at present is bag-ty pe dust collection, although bag-ty pe dust collection is effective, but the life-span of dust-removal cloth-bag is short, it is often necessary to clears up and changes, and this needs to put into substantial amounts of manpower and materials.
The sewage that steel industry produces includes float trade effluent, containing inorganic molten thing trade effluent, containing organic trade effluent and cooling wastewater；Conventional process trade effluent puts into big, and effect is bad.
Containing ferrum in trade effluent, containing sulfur dioxide in industrial waste gas, in a humid environment, sulfur dioxide first reacts with water and reacts and generate the sulfurous acid ferrum under sulfurous acid ferrum, room temperature again with ferrum is solid to sulfur dioxide, it is possible to precipitation, and equation is:
The first step: sulfur dioxide and water react generation sulfurous acid: SO2+H2O=H2SO3；
Second step: sulfurous acid and ferrum react generation hydrogen and sulfurous acid ferrum: H2SO3+2Fe=Fe2SO3+H2。
Country is advocating the energy-saving and emission-reduction of enterprise, and iron and steel enterprise is basic as national product enterprise, is also the industry that enterprise of country proportion is huge, more needs to carry out the work of energy-saving and emission-reduction, environmental protection.
Summary of the invention
It is an object of the invention to provide the equipment purifying the sewage waste gas that steel industry produces, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme: purify the equipment of the sewage waste gas that steel industry produces, including air inlet pipe, water inlet pipe, treatment box, outlet pipe, escape pipe and membrane cisterna；Described air inlet pipe is arranged at bottom treatment box, and described air inlet pipe arranges multiple aperture；Described water inlet pipe connects treatment box, is positioned at treatment box top；Four layers are included inside described treatment box, it is followed successively by purifying layer, adsorption layer, fluorine removal layer and sewage waste gas layer from top to bottom, described purifying layer includes that immobilized microorganism ball, immobilized microorganism ball can remove the nitrogen oxides in sewage and waste gas, sulfur dioxide gas and particulate matter；The material of described adsorption layer uses the mixture that cinder is made with straw, it is possible to the sulfur dioxide gas in absorption effluent and waste gas；The material of described fluorine removal layer uses defluoridation filter material, it is possible to remove the fluorine in sewage and waste gas and fluoride；Described sewage waste gas layer connects water inlet pipe, and described sewage waste gas layer includes that air inlet pipe, described sewage waste gas layer are used for supplying sewage and waste gas, and in purifying layer, the sulfur dioxide in waste gas and the ferrum in sewage react generation sulfurous acid ferrum precipitation；
Arranging magnetic field generator, container and sewage draining exit b outside described treatment box, described magnetic field generator is used for making immobilized microorganism ball be in suspended state；Immobilized microorganism ball, the immobilized microorganism ball in regular replenishment treatment box is contained in described container；Described sewage draining exit b is for discharging the immobilized microorganism ball in purifying layer and precipitate；
One end of described outlet pipe connects treatment box, and for being discharged by the upper water of purifying layer, one end of described escape pipe connects the top for the treatment of box, and the other end of described escape pipe is connected with outlet pipe, and sewage and waste gas after making purification are mixed into membrane cisterna；Described membrane cisterna includes membrane module, gas outlet and sewage draining exit a；Described membrane module sewage after purified treatment case processes, described gas outlet is used for discharging waste gas, and described sewage draining exit a is for discharging the dirt that membrane module intercepts；
On described outlet pipe and escape pipe, flow valve is set, for controlling the mixed proportion of sewage and waste gas, sewage enters membrane cisterna after mixing with waste gas, described membrane module can filter sewage, the waste gas of mixing can wash away membrane module, make dirt be difficult to be attached to membrane module surface, and the dirt being already attached to membrane module surface can be removed, the sewage ratio with waste gas is set at 1:2～1:1；
Described immobilized microorganism bag includes magnetizing mediums and activated sludge, and described magnetizing mediums is the metallic nickel after Passivation Treatment, and described magnetizing mediums is without magnetic, but can magnetize under the influence of a magnetic field；Described activated sludge is rich in microorganism；Described activated sludge is wrapped in magnetizing mediums, is formed spherical.
Compared with prior art, the invention has the beneficial effects as follows: one, described a kind of will purify in the processing means of steel industry sewage waste gas after sewage waste gas be mixed in membrane cisterna, membrane module in membrane cisterna can purify sewage again, simultaneously, dirt is made to be difficult to be attached to membrane module surface by washing away of waste gas, and the dirt being already attached to membrane module surface can be removed, when the ratio of sewage and waste gas is between 1:2～1:1, the effect that waste gas washes away membrane module is best, effectively prevents fouling membrane and extends the service life of membrane module；Two, described a kind for the treatment of box in the processing means of steel industry sewage waste gas is for processing waste gas and the sewage of steel plant's generation, the ferrum contained in sewage can react in a humidity environment with the sulfur dioxide in waste gas, the sulfurous acid ferrum finally producing solid-state precipitates, by sewage to be mixed in treatment box the ferrum that can not only remove in sewage with waste gas, it is also possible to remove the sulfur dioxide gas in waste gas；Three, described a kind of immobilized microorganism ball in the processing means of steel industry sewage waste gas uses immobilized mode can make Microorganism incubation, this mode can not only maintain the activity of microorganism, preferably purify water, and can preferably make the particulate matter in absorption water；Immobilized microorganism ball can be in suspended state under the effect of magnetic field generator, thus may advantageously facilitate the circulation of microorganism and improve microbial activity, can preferably purify water；Immobilized microorganism ball also will not be made to be damaged by the way of magnetic field controls immobilized microorganism ball；Four, the adsorption layer arranged in described a kind for the treatment of box in the processing means of steel industry sewage waste gas uses the mixture that cinder is made with straw, can effectively remove sulfur dioxide, pollutant in absorption waste gas and sewage, and effectively utilize straw, resource reutilization, energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the immobilized microorganism ball of the present invention.
In figure: 1, air inlet pipe, 2, water inlet pipe, 3, treatment box, 4, adsorption layer, 5, fluorine removal layer, 6, magnetic field generator, 7, immobilized microorganism ball, 8, container, 9, outlet pipe, 10, escape pipe, 11, membrane cisterna, 12, membrane module, 13, gas outlet, 14, sewage draining exit a, 15, sewage draining exit b, 16, magnetizing mediums, 17, activated sludge.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment 1:
Referring to Fig. 1-2, the present invention provides a kind of technical scheme: purify the equipment of the sewage waste gas that steel industry produces, including air inlet pipe 1, water inlet pipe 2, treatment box 3, outlet pipe 9, escape pipe 10 and membrane cisterna 11；Air inlet pipe 1 is arranged at bottom treatment box 3, and air inlet pipe 1 arranges multiple aperture；Water inlet pipe 2 connects treatment box 3, is positioned at treatment box 3 top；Treatment box 3 is internal includes four layers, it is followed successively by purifying layer, adsorption layer 4, fluorine removal layer 5 and sewage waste gas layer from top to bottom, adsorption layer 4 and fluorine removal layer 5 are positioned at treatment box 3 top, it is owing to being provided with steel wire bottom fluorine removal layer 5, while steel wire can fix fluorine removal layer 5, waste gas and sewage also can be allowed to pass through；Purifying layer includes that immobilized microorganism ball 7, immobilized microorganism ball 7 can remove the nitrogen oxides in sewage and waste gas, sulfur dioxide gas and particulate matter；The material of adsorption layer 4 uses the mixture that cinder is made with straw, it is possible to the sulfur dioxide gas in absorption effluent and waste gas；The material of fluorine removal layer 5 uses defluoridation filter material, it is possible to remove the fluorine in sewage and waste gas and fluoride；Sewage waste gas layer connects water inlet pipe 2, sewage waste gas layer includes air inlet pipe 1, sewage waste gas layer is used for supplying sewage and waste gas, in purifying layer, the sulfur dioxide in waste gas and the ferrum in sewage react generation sulfurous acid ferrum precipitation, and equation is: the first step: sulfur dioxide and water react generation sulfurous acid: SO2+H2O=H2SO3；Second step: sulfurous acid and ferrum react generation hydrogen and sulfurous acid ferrum: H2SO3+2Fe=Fe2SO3+H2, so can not only remove the ferrum in sewage, it is also possible to remove the sulfur dioxide gas in waste gas；For preventing the sewage waste gas of sewage waste gas layer from not entering adsorption layer 4, fluorine removal layer 5 and purifying layer, so, the height of air inlet pipe 1 and water inlet pipe 2 is set higher than treatment box 3；
Treatment box 3 is outside arranges magnetic field generator 6, container 8 and sewage draining exit b15, and magnetic field generator 6 is used for making immobilized microorganism ball 7 be in suspended state；Immobilized microorganism ball 7, the immobilized microorganism ball 7 in regular replenishment treatment box 3 is contained in container 8；Sewage draining exit b15 is for discharging the immobilized microorganism ball 7 in purifying layer and precipitate；
One end of outlet pipe 9 connects treatment box 3, and for being discharged by the upper water of purifying layer, one end of escape pipe 10 connects the top for the treatment of box 3, and the other end of escape pipe 10 is connected with outlet pipe 9, and sewage and waste gas after making purification are mixed into membrane cisterna 11；Membrane cisterna 11 includes membrane module 12, gas outlet 13 and sewage draining exit a14；The membrane module 12 sewage after purified treatment case 3 processes, gas outlet 13 is used for discharging waste gas, and sewage draining exit a14 is for discharging the dirt that membrane module 12 intercepts；
On outlet pipe 9 and escape pipe 10, flow valve is set, for controlling the mixed proportion of sewage and waste gas, sewage enters membrane cisterna 11 after mixing with waste gas, membrane module 12 can filter sewage, the waste gas of mixing can wash away membrane module 12, makes dirt be difficult to be attached to membrane module 12 surface, and the dirt being already attached to membrane module 12 surface can be removed, the ratio of sewage and waste gas that arranges is at 1:2, and under this ratio, sewage is preferable to the scouring effect of membrane module 12；
Immobilized microorganism ball 7 includes that magnetizing mediums 16 and activated sludge 17, magnetizing mediums 16 are the metallic nickel after Passivation Treatment, and magnetizing mediums 16 is without magnetic, but can magnetize under the influence of a magnetic field；Activated sludge 17 is rich in microorganism；Activated sludge 17 is wrapped in magnetizing mediums 16, is formed spherical.
Embodiment 2:
Referring to Fig. 1-2, the present invention provides a kind of technical scheme: purify the equipment of the sewage waste gas that steel industry produces, including air inlet pipe 1, water inlet pipe 2, treatment box 3, outlet pipe 9, escape pipe 10 and membrane cisterna 11；Air inlet pipe 1 is arranged at bottom treatment box 3, and air inlet pipe 1 arranges multiple aperture；Water inlet pipe 2 connects treatment box 3, is positioned at treatment box 3 top；Treatment box 3 is internal includes four layers, it is followed successively by purifying layer, adsorption layer 4, fluorine removal layer 5 and sewage waste gas layer from top to bottom, adsorption layer 4 and fluorine removal layer 5 are positioned at treatment box 3 top, it is owing to being provided with steel wire bottom fluorine removal layer 5, while steel wire can fix fluorine removal layer 5, waste gas and sewage also can be allowed to pass through；Purifying layer includes that immobilized microorganism ball 7, immobilized microorganism ball 7 can remove the nitrogen oxides in sewage and waste gas, sulfur dioxide gas and particulate matter；The material of adsorption layer 4 uses the mixture that cinder is made with straw, it is possible to the sulfur dioxide gas in absorption effluent and waste gas；The material of fluorine removal layer 5 uses defluoridation filter material, it is possible to remove the fluorine in sewage and waste gas and fluoride；Sewage waste gas layer connects water inlet pipe 2, sewage waste gas layer includes air inlet pipe 1, sewage waste gas layer is used for supplying sewage and waste gas, in purifying layer, the sulfur dioxide in waste gas and the ferrum in sewage react generation sulfurous acid ferrum precipitation, and equation is: the first step: sulfur dioxide and water react generation sulfurous acid: SO2+H2O=H2SO3；Second step: sulfurous acid and ferrum react generation hydrogen and sulfurous acid ferrum: H2SO3+2Fe=Fe2SO3+H2, so can not only remove the ferrum in sewage, it is also possible to remove the sulfur dioxide gas in waste gas；For preventing the sewage waste gas of sewage waste gas layer from not entering adsorption layer 4, fluorine removal layer 5 and purifying layer, so, the height of air inlet pipe 1 and water inlet pipe 2 is set higher than treatment box 3；
Treatment box 3 is outside arranges magnetic field generator 6, container 8 and sewage draining exit b15, and magnetic field generator 6 is used for making immobilized microorganism ball 7 be in suspended state；Immobilized microorganism ball 7, the immobilized microorganism ball 7 in regular replenishment treatment box 3 is contained in container 8；Sewage draining exit b15 is for discharging the immobilized microorganism ball 7 in purifying layer and precipitate；
One end of outlet pipe 9 connects treatment box 3, and for being discharged by the upper water of purifying layer, one end of escape pipe 10 connects the top for the treatment of box 3, and the other end of escape pipe 10 is connected with outlet pipe 9, and sewage and waste gas after making purification are mixed into membrane cisterna 11；Membrane cisterna 11 includes membrane module 12, gas outlet 13 and sewage draining exit a14；The membrane module 12 sewage after purified treatment case 3 processes, gas outlet 13 is used for discharging waste gas, and sewage draining exit a14 is for discharging the dirt that membrane module 12 intercepts；
On outlet pipe 9 and escape pipe 10, flow valve is set, for controlling the mixed proportion of sewage and waste gas, sewage enters membrane cisterna 11 after mixing with waste gas, membrane module 12 can filter sewage, the waste gas of mixing can wash away membrane module 12, makes dirt be difficult to be attached to membrane module 12 surface, and the dirt being already attached to membrane module 12 surface can be removed, the ratio of sewage and waste gas that arranges is at 1:1, and under this ratio, sewage is preferable to the scouring effect of membrane module 12；
Immobilized microorganism ball 7 includes that magnetizing mediums 16 and activated sludge 17, magnetizing mediums 16 are the metallic nickel after Passivation Treatment, and magnetizing mediums 16 is without magnetic, but can magnetize under the influence of a magnetic field；Activated sludge 17 is rich in microorganism；Activated sludge 17 is wrapped in magnetizing mediums 16, is formed spherical.
Embodiment 3:
Referring to Fig. 1-2, the present invention provides a kind of technical scheme: purify the equipment of the sewage waste gas that steel industry produces, including air inlet pipe 1, water inlet pipe 2, treatment box 3, outlet pipe 9, escape pipe 10 and membrane cisterna 11；Air inlet pipe 1 is arranged at bottom treatment box 3, and air inlet pipe 1 arranges multiple aperture；Water inlet pipe 2 connects treatment box 3, is positioned at treatment box 3 top；Treatment box 3 is internal includes four layers, it is followed successively by purifying layer, adsorption layer 4, fluorine removal layer 5 and sewage waste gas layer from top to bottom, adsorption layer 4 and fluorine removal layer 5 are positioned at treatment box 3 top, it is owing to being provided with steel wire bottom fluorine removal layer 5, while steel wire can fix fluorine removal layer 5, waste gas and sewage also can be allowed to pass through；Purifying layer includes that immobilized microorganism ball 7, immobilized microorganism ball 7 can remove the nitrogen oxides in sewage and waste gas, sulfur dioxide gas and particulate matter；The material of adsorption layer 4 uses the mixture that cinder is made with straw, it is possible to the sulfur dioxide gas in absorption effluent and waste gas；The material of fluorine removal layer 5 uses defluoridation filter material, it is possible to remove the fluorine in sewage and waste gas and fluoride；Sewage waste gas layer connects water inlet pipe 2, sewage waste gas layer includes air inlet pipe 1, sewage waste gas layer is used for supplying sewage and waste gas, in purifying layer, the sulfur dioxide in waste gas and the ferrum in sewage react generation sulfurous acid ferrum precipitation, and equation is: the first step: sulfur dioxide and water react generation sulfurous acid: SO2+H2O=H2SO3；Second step: sulfurous acid and ferrum react generation hydrogen and sulfurous acid ferrum: H2SO3+2Fe=Fe2SO3+H2, so can not only remove the ferrum in sewage, it is also possible to remove the sulfur dioxide gas in waste gas；For preventing the sewage waste gas of sewage waste gas layer from not entering adsorption layer 4, fluorine removal layer 5 and purifying layer, so, the height of air inlet pipe 1 and water inlet pipe 2 is set higher than treatment box 3；
Treatment box 3 is outside arranges magnetic field generator 6, container 8 and sewage draining exit b15, and magnetic field generator 6 is used for making immobilized microorganism ball 7 be in suspended state；Immobilized microorganism ball 7, the immobilized microorganism ball 7 in regular replenishment treatment box 3 is contained in container 8；Sewage draining exit b15 is for discharging the immobilized microorganism ball 7 in purifying layer and precipitate；
One end of outlet pipe 9 connects treatment box 3, and for being discharged by the upper water of purifying layer, one end of escape pipe 10 connects the top for the treatment of box 3, and the other end of escape pipe 10 is connected with outlet pipe 9, and sewage and waste gas after making purification are mixed into membrane cisterna 11；Membrane cisterna 11 includes membrane module 12, gas outlet 13 and sewage draining exit a14；The membrane module 12 sewage after purified treatment case 3 processes, gas outlet 13 is used for discharging waste gas, and sewage draining exit a14 is for discharging the dirt that membrane module 12 intercepts；
On outlet pipe 9 and escape pipe 10, flow valve is set, for controlling the mixed proportion of sewage and waste gas, sewage enters membrane cisterna 11 after mixing with waste gas, membrane module 12 can filter sewage, the waste gas of mixing can wash away membrane module 12, makes dirt be difficult to be attached to membrane module 12 surface, and the dirt being already attached to membrane module 12 surface can be removed, the ratio of sewage and waste gas that arranges is at 1:1.5, and under this ratio, sewage is preferable to the scouring effect of membrane module 12；
Immobilized microorganism ball 7 includes that magnetizing mediums 16 and activated sludge 17, magnetizing mediums 16 are the metallic nickel after Passivation Treatment, and magnetizing mediums 16 is without magnetic, but can magnetize under the influence of a magnetic field；Activated sludge 17 is rich in microorganism；Activated sludge 17 is wrapped in magnetizing mediums 16, is formed spherical.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; conceive in addition equivalent or change according to technical scheme and improvement thereof, all should contain within the scope of the present invention.

Claims (1)

1. purify the equipment of the sewage waste gas that steel industry produces, it is characterised in that: include air inlet pipe (1), water inlet pipe (2), treatment box (3), outlet pipe (9), escape pipe (10) and membrane cisterna (11)；Described air inlet pipe (1) is arranged at treatment box (3) bottom, and described air inlet pipe (1) arranges multiple aperture；Described water inlet pipe (2) connects treatment box (3), is positioned at treatment box (3) top；Described treatment box (3) is internal includes four layers, it is followed successively by purifying layer, adsorption layer (4), fluorine removal layer (5) and sewage waste gas layer from top to bottom, described purifying layer includes that immobilized microorganism ball (7), immobilized microorganism ball (7) can remove the nitrogen oxides in sewage and waste gas, sulfur dioxide gas and particulate matter；The material of described adsorption layer (4) uses the mixture that cinder is made with straw, it is possible to the sulfur dioxide gas in absorption effluent and waste gas；The material of described fluorine removal layer (5) uses defluoridation filter material, it is possible to remove the fluorine in sewage and waste gas and fluoride；Described sewage waste gas layer connects water inlet pipe (2), and described sewage waste gas layer includes that air inlet pipe (1), described sewage waste gas layer are used for supplying sewage and waste gas, and in purifying layer, the sulfur dioxide in waste gas and the ferrum in sewage react generation sulfurous acid ferrum precipitation；
Described treatment box (3) is outside arranges magnetic field generator (6), container (8) and sewage draining exit b(15), described magnetic field generator (6) is used for making immobilized microorganism ball (7) be in suspended state；Immobilized microorganism ball (7), the immobilized microorganism ball (7) in regular replenishment treatment box (3) is contained in described container (8)；Described sewage draining exit b(15) for discharging the immobilized microorganism ball (7) in purifying layer and precipitate；
One end of described outlet pipe (9) connects treatment box (3), for the upper water of purifying layer is discharged, one end of described escape pipe (10) connects the top for the treatment of box (3), the other end of described escape pipe (10) is connected with outlet pipe (9), and sewage and waste gas after making purification are mixed into membrane cisterna (11)；Described membrane cisterna (11) includes membrane module (12), gas outlet (13) and sewage draining exit a(14)；The described membrane module (12) sewage after purified treatment case (3) processes, described gas outlet (13) is used for discharging waste gas, described sewage draining exit a(14) be used for discharging the dirt that membrane module (12) intercepts；
On described outlet pipe (9) and escape pipe (10), flow valve is set, for controlling the mixed proportion of sewage and waste gas, sewage enters membrane cisterna (11) after mixing with waste gas, described membrane module (12) can filter sewage, the waste gas of mixing can wash away membrane module (12), make dirt be difficult to be attached to membrane module (12) surface, and the dirt being already attached to membrane module (12) surface can be removed, the sewage ratio with waste gas is set at 1:2～1:1；
Described immobilized microorganism ball (7) includes magnetizing mediums (16) and activated sludge (17), described magnetizing mediums (16) is the metallic nickel after Passivation Treatment, described magnetizing mediums (16) is without magnetic, but can magnetize under the influence of a magnetic field；Described activated sludge (17) is rich in microorganism；Described activated sludge (17) is wrapped in magnetizing mediums (16), is formed spherical.
CN201610582178.0A 2016-07-22 2016-07-22 Equipment for purifying sewage and waste gas generated in iron and steel industry Pending CN105967463A (en)

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CN108554057A (en) * 2018-04-17 2018-09-21 江苏绿地环保滤材有限公司 A kind of self-cleaning dust crosses water and filters out environmental protecting device
CN110368756A (en) * 2019-08-13 2019-10-25 温州吉鸿建筑信息科技有限公司 A kind of steel-making converter washing dust-extraction unit
CN111632458A (en) * 2020-05-07 2020-09-08 龚建中 Sedimentation type high-adhesion-rate waste gas particle separation device
CN111790239A (en) * 2020-07-23 2020-10-20 张振娜 Self-compensation type oil-containing waste gas circulating treatment method

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CN1204625A (en) * 1997-07-02 1999-01-13 科学技术振兴事业团 Microorganisms-immobilized magnetic carriers, process for producing carriers and method of treating waste water
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CN108554057A (en) * 2018-04-17 2018-09-21 江苏绿地环保滤材有限公司 A kind of self-cleaning dust crosses water and filters out environmental protecting device
CN110368756A (en) * 2019-08-13 2019-10-25 温州吉鸿建筑信息科技有限公司 A kind of steel-making converter washing dust-extraction unit
CN111632458A (en) * 2020-05-07 2020-09-08 龚建中 Sedimentation type high-adhesion-rate waste gas particle separation device
CN111632458B (en) * 2020-05-07 2021-12-24 江苏景中景工业涂装设备有限公司 Sedimentation type high-adhesion-rate waste gas particle separation device
CN111790239A (en) * 2020-07-23 2020-10-20 张振娜 Self-compensation type oil-containing waste gas circulating treatment method

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Application publication date: 20160928