CN106474863A - A kind of method of environmental protection treatment compound fertilizer workshop tail gas - Google Patents
A kind of method of environmental protection treatment compound fertilizer workshop tail gas Download PDFInfo
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- CN106474863A CN106474863A CN201611004760.5A CN201611004760A CN106474863A CN 106474863 A CN106474863 A CN 106474863A CN 201611004760 A CN201611004760 A CN 201611004760A CN 106474863 A CN106474863 A CN 106474863A
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- 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
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- 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
- B01D53/32—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 electrical effects other than those provided for in group B01D61/00
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- 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
- B01D53/76—Gas phase processes, e.g. by using aerosols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/046—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium containing halogens, e.g. halides
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Abstract
The invention belongs to environmental technology field, specifically, is a kind of method of environmental protection treatment compound fertilizer workshop tail gas, which includes：Then slurry-spraying pelletizing tail gas pass through plasma reactor taste removal, then pass through ozone generator first through venturi spray column and electrostatic precipitator cooling dedusting, and finally entering in the reactor equipped with adsorbent carries out desulphurization denitration process, after being disposed, discharges；For solving the problems, such as that compound fertilizer workshop exhaust gas treating method pollutes environment in prior art.
Description
Technical field
The invention belongs to environmental technology field, specifically, is a kind of method of environmental protection treatment compound fertilizer workshop tail gas.
Background technology
Slurry-spraying pelletizing be the moisture (the liquid general name that can be vaporized) in slip (mixture, solution and solute), by spray
It is mapped in equipment, the method with heating, taking out pressure, after so that the moisture content in slip is vaporized and separate, will not the gasifying (certain of retention
Under the conditions of) solid form granular process and claim slurry-spraying pelletizing.
, during composite fertilizer is produced, using spray granulation, in its tail gas, composition is more complicated for compound fertilizer workshop, main
Floating dust to be had, dust and tiny compound fertilizer granules, a large amount of poisonous, the irritant gas that gas Main Ingredients and Appearance is brought by fire coal
The gas of taste.Predominant gas composition has hydrogen sulfide, sulfur dioxide, ammonia nitrogen, ketone, aldehydes, esters, benzene class dust, vapor etc..
Especially overcast and rainy or when air pressure is relatively low, often result in plant area and neighbouring resident living area smog is boundless and indistinct, the harm of acid mist and acid rain
Quite serious, the concentration of emission of flue dust and waste gas is produced to environment and human body larger considerably beyond the regulation of discharging standards
Negative effect, so compound fertilizer workshop treating tail gas are very urgent, it is necessary to administered.
Content of the invention
The present invention seeks to a kind of method of environmental protection treatment compound fertilizer workshop tail gas has been aimed to provide, for solving existing skill
In art, compound fertilizer workshop exhaust gas treating method pollutes the problem of environment.
For realizing above-mentioned technical purpose, the technical solution used in the present invention is as follows：
Then slurry-spraying pelletizing tail gas pass through plasma reaction first through venturi spray column and electrostatic precipitator cooling dedusting
Device taste removal, then pass through ozone generator, finally entering in the reactor equipped with adsorbent carries out desulphurization denitration process, is disposed
Afterwards, discharge；The adsorbent is prepared according to following technique：Sepiolite and montmorillonite are mixed, is then added to disintegrating machine
In crushed, then mix with calcirm-fluoride, alumine, be then ground, obtain particle diameter for 120 target minreal matter powder；Will
Broomcorn straw and peanut shell are according to 2:3 mass ratio is put in pulverizer and is crushed, and obtains agricultural wastes after 120 mesh sieves
Powder, is transferred in agitator tank, then adds cationic starch and deionized water toward in agitator tank, is uniformly mixing to obtain suspension,
Gained mineral matter powder is added, 900 turns/min stirs 5min, then 10 hours are stood, and precipitation is collected by filtration, precipitation is placed in 60 DEG C
Dry, finally crush the particle for obtaining 60 mesh, as component A；The activated carbon for weighing 60 mesh is placed in container, then the quality such as adds
Volume fraction be 20% dilute nitric acid solution, soak 5 hours, then take out activated carbon, washing, obtain modified activated carbon；Institute
Obtain modified activated carbon, nano diatomite and deionized water to be added sequentially in agitator tank, heat while stirring, to be heated to 90
DEG C when, maintain 90 DEG C continue stirring transpiring moistures, when moisture is at 4% (w/w), stop heating, naturally cool to room temperature,
Then roasting 4 hours at 400 DEG C, take out, are ground into the particle of 30 mesh, as component B；By component A and component B according to 5-8:
The mass ratio mixing of 9-15, stirs, obtains final product.
Using the invention of technique scheme, the present invention is using cooling, precipitator dust, plasma reactor are removed
Taste, ozone purification carbon monoxide, nitrogen oxides, hydrocarbon and adsorbent remove ammonia nitrogen and sulfide, and system is processed
Slurry-spraying pelletizing tail gas；Ozone generator produces ozone, in order to remove the gas that can not be removed in tail gas with spray and electrostatic means
Phase organic substance, such as ketone, aldehydes, esters, benzene class etc. so as to fully oxidized, decompose, generate harmless carbon dioxide and
Water；Adsorbent of the present invention is for removing the pollutants such as the ammonia nitrogen that can not be reacted completely and sulfide；
Limit further, the mass ratio of the sepiolite, montmorillonite, calcirm-fluoride and alumine is 7-11:4-9:4-
9:1-3.
Limit further, the quality of the agricultural wastes powder, cationic starch, gained mineral matter powder and deionized water
Than for 8-10:3-4:9-14:20-30.
Limit further, the mass ratio of the gained modified activated carbon, nano diatomite and deionized water is 11-23:
1-3:21-31.
Description of the drawings
No
Specific embodiment
In order that those skilled in the art may be better understood the present invention, with reference to embodiment to the technology of the present invention
Scheme is further illustrated.
Then slurry-spraying pelletizing tail gas pass through plasma reaction first through venturi spray column and electrostatic precipitator cooling dedusting
Device taste removal, then pass through ozone generator, finally entering in the reactor equipped with adsorbent carries out desulphurization denitration process, is disposed
Afterwards, discharge；The adsorbent is prepared according to following technique：Sepiolite and montmorillonite are mixed, is then added to disintegrating machine
In crushed, then mix with calcirm-fluoride, alumine, be then ground, obtain particle diameter for 120 target minreal matter powder；Will
Broomcorn straw and peanut shell are according to 2:3 mass ratio is put in pulverizer and is crushed, and obtains agricultural wastes after 120 mesh sieves
Powder, is transferred in agitator tank, then adds cationic starch and deionized water toward in agitator tank, is uniformly mixing to obtain suspension,
Gained mineral matter powder is added, 900 turns/min stirs 5min, then 10 hours are stood, and precipitation is collected by filtration, precipitation is placed in 60 DEG C
Dry, finally crush the particle for obtaining 60 mesh, as component A；The activated carbon for weighing 60 mesh is placed in container, then the quality such as adds
Volume fraction be 20% dilute nitric acid solution, soak 5 hours, then take out activated carbon, washing, obtain modified activated carbon；Institute
Obtain modified activated carbon, nano diatomite and deionized water to be added sequentially in agitator tank, heat while stirring, to be heated to 90
DEG C when, maintain 90 DEG C continue stirring transpiring moistures, when moisture is at 4% (w/w), stop heating, naturally cool to room temperature,
Then roasting 4 hours at 400 DEG C, take out, are ground into the particle of 30 mesh, as component B；By component A and component B according to 5-8:
The mass ratio mixing of 9-15, stirs, obtains final product.
It is preferred that the mass ratio of sepiolite, montmorillonite, calcirm-fluoride and alumine is 7-11:4-9:4-9:1-3.Actual
On, other ratios can be selected as the case may be.
It is preferred that the mass ratio of agricultural wastes powder, cationic starch, gained mineral matter powder and deionized water is 8-10:3-
4:9-14:20-30.In fact, other ratios can be selected as the case may be.
It is preferred that the mass ratio of gained modified activated carbon, nano diatomite and deionized water is 11-23:1-3:21-31.Real
On border, other ratios can be selected as the case may be.
Embodiment 1
Then slurry-spraying pelletizing tail gas pass through plasma reaction first through venturi spray column and electrostatic precipitator cooling dedusting
Device taste removal, then pass through ozone generator, finally entering in the reactor equipped with adsorbent carries out desulphurization denitration process, is disposed
Afterwards, discharge；The adsorbent is prepared according to following technique：Sepiolite and montmorillonite are mixed, is then added to disintegrating machine
In crushed, then mix with calcirm-fluoride, alumine, be then ground, obtain particle diameter for 120 target minreal matter powder；Will
Broomcorn straw and peanut shell are according to 2:3 mass ratio is put in pulverizer and is crushed, and obtains agricultural wastes after 120 mesh sieves
Powder, is transferred in agitator tank, then adds cationic starch and deionized water toward in agitator tank, is uniformly mixing to obtain suspension,
Gained mineral matter powder is added, 900 turns/min stirs 5min, then 10 hours are stood, and precipitation is collected by filtration, precipitation is placed in 60 DEG C
Dry, finally crush the particle for obtaining 60 mesh, as component A；The activated carbon for weighing 60 mesh is placed in container, then the quality such as adds
Volume fraction be 20% dilute nitric acid solution, soak 5 hours, then take out activated carbon, washing, obtain modified activated carbon；Institute
Obtain modified activated carbon, nano diatomite and deionized water to be added sequentially in agitator tank, heat while stirring, to be heated to 90
DEG C when, maintain 90 DEG C continue stirring transpiring moistures, when moisture is at 4% (w/w), stop heating, naturally cool to room temperature,
Then roasting 4 hours at 400 DEG C, take out, are ground into the particle of 30 mesh, as component B；By component A and component B according to 8:9
Mass ratio mixing, stir, obtain final product.
The mass ratio of sepiolite, montmorillonite, calcirm-fluoride and alumine is 5:4:4:1, agricultural wastes powder, cation
The mass ratio of starch, gained mineral matter powder and deionized water is 8:3:9:20, modified activated carbon, nano diatomite and go from
The mass ratio of sub- water is 11:1:21.
Embodiment 2
Then slurry-spraying pelletizing tail gas pass through plasma reaction first through venturi spray column and electrostatic precipitator cooling dedusting
Device taste removal, then pass through ozone generator, finally entering in the reactor equipped with adsorbent carries out desulphurization denitration process, is disposed
Afterwards, discharge；The adsorbent is prepared according to following technique：Sepiolite and montmorillonite are mixed, is then added to disintegrating machine
In crushed, then mix with calcirm-fluoride, alumine, be then ground, obtain particle diameter for 120 target minreal matter powder；Will
Broomcorn straw and peanut shell are according to 2:3 mass ratio is put in pulverizer and is crushed, and obtains agricultural wastes after 120 mesh sieves
Powder, is transferred in agitator tank, then adds cationic starch and deionized water toward in agitator tank, is uniformly mixing to obtain suspension,
Gained mineral matter powder is added, 900 turns/min stirs 5min, then 10 hours are stood, and precipitation is collected by filtration, precipitation is placed in 60 DEG C
Dry, finally crush the particle for obtaining 60 mesh, as component A；The activated carbon for weighing 60 mesh is placed in container, then the quality such as adds
Volume fraction be 20% dilute nitric acid solution, soak 5 hours, then take out activated carbon, washing, obtain modified activated carbon；Institute
Obtain modified activated carbon, nano diatomite and deionized water to be added sequentially in agitator tank, heat while stirring, to be heated to 90
DEG C when, maintain 90 DEG C continue stirring transpiring moistures, when moisture is at 4% (w/w), stop heating, naturally cool to room temperature,
Then roasting 4 hours at 400 DEG C, take out, are ground into the particle of 30 mesh, as component B；By component A and component B according to 5:15
Mass ratio mixing, stir, obtain final product.
The mass ratio of sepiolite, montmorillonite, calcirm-fluoride and alumine is 11:9:9:3, agricultural wastes powder, sun from
The mass ratio of sub- starch, gained mineral matter powder and deionized water is 10:4:14:30, gained modified activated carbon, nano diatomite
And the mass ratio of deionized water is 23:3:31.
Performance of the adsorbent of the present invention is high, and adsorption capacity is good, stable performance；By adding cationic starch to sepiolite, illiteracy
De- stone, calcirm-fluoride and alumine carry out surface modification modification so that powder carries electric charge, improves the energy of adsorption to dust
Power, additionally it is possible to so that product has certain electrostatic adsorption；The present invention is by having carried out surface oxidation to activated carbon
Process, so as to the content of surface oxygen-containing acid group is improved, strengthen the polarity on surface, be more easy to adsorb polar substances；Modified active
Charcoal contains substantial amounts of micropore, with strong adsorption function, has carried out modification to which, makes its contact area with other materials significantly
Increase, possess good suction-operated to gas etc.；The present invention increased the aperture number of adsorbent by soaking the techniques such as roasting
Mesh, improves surface roughness and specific surface area, enhances adsorption capacity：Different material of the present invention adopts different particle diameters,
Increase the specific surface area of adsorbent；Adsorbent prepared by the present invention, rationally, each raw material is mutually cooperateed with compatibility, can be reached relatively
Good dust-removal and desulfurizing denitration effect；Invention also uses agricultural waste material is used as raw material, cost is saved, improve enterprise
The added value of industry.
Method to a kind of environmental protection treatment compound fertilizer workshop tail gas that the present invention is provided is described in detail above.Specifically
The explanation of embodiment is only intended to help and understands the method for the present invention and its core concept.It should be pointed out that for the art
Those of ordinary skill for, under the premise without departing from the principles of the invention, the present invention can also be carried out some improvement and repair
Decorations, these improve and modification is also fallen in the protection domain of the claims in the present invention.
Claims (4)
1. a kind of method of environmental protection treatment compound fertilizer workshop tail gas, which includes as follows：Slurry-spraying pelletizing tail gas is sprayed through venturi first
Tower and electrostatic precipitator cooling dedusting is drenched, is then passed through plasma reactor taste removal, then passes through ozone generator, finally enter dress
Having in the reactor of adsorbent carries out desulphurization denitration process, after being disposed, discharges；The adsorbent is prepared according to following technique
And obtain：Sepiolite and montmorillonite are mixed, are then added to be crushed in disintegrating machine, then mix with calcirm-fluoride, alumine,
Then be ground, particle diameter is obtained for 120 target minreal matter powder；By broomcorn straw and peanut shell according to 2:3 mass ratio puts into
Crush in pulverizer, agricultural wastes powder is obtained after 120 mesh sieves, be transferred in agitator tank, then add toward in agitator tank
Cationic starch and deionized water, are uniformly mixing to obtain suspension, add gained mineral matter powder, and 900 turns/min stirs 5min,
Stand 10 hours again, precipitation is collected by filtration, precipitation is placed in 60 DEG C of drying, finally crush the particle for obtaining 60 mesh, as component
A；The activated carbon for weighing 60 mesh is placed in container, then the volume fraction of quality such as to add be 20% dilute nitric acid solution, soaks 5 little
When, activated carbon is then taken out, washing, obtain modified activated carbon；Gained modified activated carbon, nano diatomite and deionized water according to
Secondary be added in agitator tank, heat while stirring, to be heated to 90 DEG C when, maintain 90 DEG C continue stirring transpiring moistures, treat moisture
Content stops heating, naturally cools to room temperature, then roasting 4 hours at 400 DEG C at 4% (w/w), takes out, is ground into 30
Purpose particle, as component B；By component A and component B according to 5-8:The mass ratio mixing of 9-15, stirs, obtains final product.
2. method according to claim 1, it is characterised in that the sepiolite, montmorillonite, calcirm-fluoride and alumine
Mass ratio be 7-11:4-9:4-9:1-3.
3. method according to claim 2, it is characterised in that the agricultural wastes powder, cationic starch, gained mineral
The mass ratio of matter powder and deionized water is 8-10:3-4:9-14:20-30.
4. method according to claim 3, it is characterised in that the gained modified activated carbon, nano diatomite and go
The mass ratio of ionized water is 11-23:1-3:21-31.
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| CN201611004760.5A CN106474863A (en) | 2016-11-15 | 2016-11-15 | A kind of method of environmental protection treatment compound fertilizer workshop tail gas |
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| CN201611004760.5A CN106474863A (en) | 2016-11-15 | 2016-11-15 | A kind of method of environmental protection treatment compound fertilizer workshop tail gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592069A (en) * | 2020-05-28 | 2020-08-28 | 广西夏阳环保科技有限公司 | Modified diatomite-nano calcium hydroxide composite sewage treatment agent |
| CN116495943A (en) * | 2023-06-19 | 2023-07-28 | 福州市规划设计研究院集团有限公司 | Sewage treatment method by utilizing compound diatomite and A2O technology |
-
2016
- 2016-11-15 CN CN201611004760.5A patent/CN106474863A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592069A (en) * | 2020-05-28 | 2020-08-28 | 广西夏阳环保科技有限公司 | Modified diatomite-nano calcium hydroxide composite sewage treatment agent |
| CN111592069B (en) * | 2020-05-28 | 2023-04-14 | 都安春旭新材料科技有限责任公司 | Modified diatomite-nano calcium hydroxide composite sewage treatment agent |
| CN116495943A (en) * | 2023-06-19 | 2023-07-28 | 福州市规划设计研究院集团有限公司 | Sewage treatment method by utilizing compound diatomite and A2O technology |
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