CN103406331A - Treating technology and device for pollutants in livestock and poultrybreeding industry - Google Patents
Treating technology and device for pollutants in livestock and poultrybreeding industry Download PDFInfo
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- CN103406331A CN103406331A CN2013103231357A CN201310323135A CN103406331A CN 103406331 A CN103406331 A CN 103406331A CN 2013103231357 A CN2013103231357 A CN 2013103231357A CN 201310323135 A CN201310323135 A CN 201310323135A CN 103406331 A CN103406331 A CN 103406331A
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- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 62
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 62
- 244000144972 livestock Species 0.000 title claims abstract description 39
- 238000005516 engineering process Methods 0.000 title abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 57
- 244000144977 poultry Species 0.000 claims abstract description 39
- 238000009395 breeding Methods 0.000 claims abstract description 36
- 230000001488 breeding effect Effects 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000779 smoke Substances 0.000 claims abstract description 20
- 239000000428 dust Substances 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000000855 fermentation Methods 0.000 claims abstract description 7
- 239000003500 flue dust Substances 0.000 claims description 24
- 239000000446 fuel Substances 0.000 claims description 21
- 238000010248 power generation Methods 0.000 claims description 15
- 239000000356 contaminant Substances 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 2
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- 230000004151 fermentation Effects 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000008929 regeneration Effects 0.000 description 6
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- 241001494479 Pecora Species 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
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- 241000283725 Bos Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
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Abstract
The invention discloses a treating technology and device for pollutants in the livestock and poultry breeding industry. The treating technology comprises the following steps: a, collecting the pollutants, carrying out centrifugal dry-wet separation treatment on the pollutants to obtain dry materials and liquid; b, incinerating the dry materials obtained in the step a, wherein the heat produced in the incineration process is used for heating a steam boiler, and the produced smoke dust is purified; carrying out anerobic fermentation treatment on the liquid to generate marsh gas; c, conveying the steam produced by the steam boiler in the step b to a steam turbine generating set to generate electricity. The treating device correspondingly comprises a pollutant collecting pool, a centrifuge, an incinerator, a marsh gas pool, the steam boiler, the steam turbine generating set and a smoke dust purification device. The treating technology and the treating device provided by the invention can effectively treat a large quantity of pollutants and pollution sources which are produced in the breeding industry; the pollutants can be recycled.
Description
Technical field
The present invention relates to the environmental pollution treatment technology field, be specifically related to a kind for the treatment of process and treating apparatus thereof of livestock and poultry breeding industry pollutant.
Background technology
In this year, livestock and poultry breeding industry develops rapidly, has not only improved the people's living standard, has also improved peasant's income level simultaneously.Yet, livestock and poultry breeding industry can produce the pollutants such as a large amount of livestock and poultry pollutants, aquaculture wastewater, in prior art, these pollutants are all to process by the mode of direct discharge, the area surroundings that plant comparatively concentrates is severe, stink is dense, and fly is existed everywhere, and water source, soil etc. are produced indirectly and pollute.Therefore, the pollutant produced in livestock and poultry breeding industry is processed to the problem that becomes outbalance in the environmental pollution improvement field.
Summary of the invention
The objective of the invention is to overcome above shortcoming, a kind for the treatment of process and treating apparatus thereof of poultry breeding industry pollutant is provided, the high and pollutant for the treatment of effeciency obtains regeneration.
Technical scheme of the present invention is:
A kind for the treatment of process of livestock and poultry breeding industry pollutant comprises following steps:
A, collection pollutant, carry out centrifugal separating dry space from moist space processing, separates and obtain siccative and liquid;
B, the siccative that step a is obtained burn, and the heat produced in burning process is for the heating steam boiler, and the flue dust of generation carries out the clarifying smoke processing; Liquid carries out the anaerobic fermentation processing, produces biogas;
The steam that in c, step b, steam boiler produces is delivered to the steam turbine power generation unit, for generating.
Further, the siccative water content obtained in described step a is 1-20%.
Further, in described step b, biogas prepared by anaerobic ferment process is as the combustion-supporting fuel in the siccative burning process.
Further, in described step b, incineration temperature is 800-1200 ℃.
Further, in described step b, the temperature of anaerobic ferment process is 35-45 ℃.
Further, in described step b, the clarifying smoke treatment process comprises spray washing, bag-type dust.
A kind for the treatment of apparatus of livestock and poultry breeding industry pollutant, comprise contaminant collecting pond, centrifuge, incinerator, methane-generating pit, steam boiler, steam turbine power generation unit, smoke and dust purifier, be provided with conveyance conduit between described contaminant collecting pond and described centrifuge;
Between described centrifuge and described incinerator, be provided with siccative groove and conveyer, described conveyer is delivered to siccative in described incinerator;
Described centrifuge comprises liquid outlet, and described liquid outlet is connected with described methane-generating pit;
Described steam boiler is arranged in described incinerator, and described steam boiler is connected with described steam turbine power generation unit; Described incinerator is connected with described smoke and dust purifier.
Further, described incinerator comprises combustion-supporting fuel inlet, and described methane-generating pit comprises methane outlet, and described methane outlet is communicated with described combustion-supporting fuel inlet.
Further, described smoke and dust purifier comprises spray tower, sack cleaner and exhaust chimney.
Further, described incinerator is provided with the first temperature control equipment.
Further, described methane-generating pit is provided with the second temperature control equipment.
The treatment process of livestock and poultry breeding industry pollutant provided by the invention and treating apparatus thereof have following advantage:
1, the treatment process of livestock and poultry breeding industry pollutant provided by the invention and treating apparatus thereof, effectively process pollutant, and pollutant obtains regeneration.The treatment process of poultry breeding industry pollutant provided by the invention comprises following steps: a, collection pollutant, carry out centrifugal separating dry space from moist space processing, and separate and obtain siccative and liquid; B, the siccative that step a is obtained burn, and the heat produced in burning process is for the heating steam boiler, and the flue dust of generation carries out the clarifying smoke processing; Liquid carries out the anaerobic fermentation processing, produces biogas; The steam that in c, step b, steam boiler produces is delivered to the steam turbine power generation unit, for generating.In this treatment process, the pollutant first livestock and poultry breeding industry produced carries out centrifugal separating dry space from moist space processing, makes solid material and fluid separation applications, and the siccative after separation carries out burning disposal, and liquid carries out the anaerobic reaction processing, and pollutant obtains thorough purified treatment, and efficiency is high.
The flue dust that the siccative burning obtains is for the heating steam boiler, and the steam that steam boiler produces, for the generating of steam turbine power generation unit, makes the siccative that separated from contaminants goes out obtain regeneration; Liquid is processed through anaerobic reaction, produces biogas, and used for gas for domestic use, the liquid obtained after separated from contaminants obtains regeneration equally, has saved the energy, has also createed other energy for extraneous.
2, the treatment process of livestock and poultry breeding industry pollutant provided by the invention and treating apparatus thereof, the efficiency that siccative is processed is high, and the energy consumed is few.The treatment process of livestock and poultry breeding industry pollutant provided by the invention, siccative water content are 1-20%, and siccative can carry out normal burning process; When the siccative water content was 1-4%, the siccative burning process only needed a small amount of fuel can be by the moisture in siccative evaporation, and then the fuel that siccative is burnt consume is fully used.The biogas part particularly obtained when the liquid anaerobic reaction after centrifugation is during as the combustion-supporting fuel in the siccative burning process, and the energy of the treatment system of whole livestock and poultry breeding industry pollutant is recycled, and has reduced the consumption of outside resources.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic flow sheet of the treatment process of livestock and poultry breeding industry pollutant of the present invention;
Fig. 2 is the structural representation of the treating apparatus of livestock and poultry breeding industry pollutant of the present invention;
Reference numeral: 1-contaminant collecting pond, 2-centrifuge, 3-methane-generating pit, 4-siccative groove, 5-conveyer, 6-incinerator, 7-steam boiler, 8-heat exchanger tube, 9-steam turbine power generation unit, 10-spray tower, 11-sack cleaner, 12-exhaust chimney.
The specific embodiment
Below will the technical scheme in the embodiment of the present invention be clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
The specific embodiment:
In conjunction with Fig. 1, a kind for the treatment of process of livestock and poultry breeding industry pollutant comprises following steps:
A, collection pollutant, carry out centrifugal separating dry space from moist space processing, separates and obtain siccative and liquid;
B, the siccative that step a is obtained burn, and the heat produced in burning process is for the heating steam boiler, and the flue dust of generation carries out the clarifying smoke processing; Liquid carries out the anaerobic fermentation processing, produces biogas;
The steam that in c, step b, steam boiler produces is delivered to the steam turbine power generation unit, for generating.
In the treatment process of livestock and poultry breeding industry pollutant provided by the invention, first pollutant is carried out to centrifugal separating dry space from moist space processing, make solid material and fluid separation applications, siccative after separation carries out burning disposal, liquid carries out the anaerobic reaction processing, according to the character of pollutant, carry out respectively purified treatment, pollutant is thoroughly purified, efficiency is high.
The flue dust that the siccative burning obtains is for the heating steam boiler, and the steam that steam boiler produces, for the generating of steam turbine power generation unit, makes the siccative that separated from contaminants goes out obtain regeneration; Liquid is processed through anaerobic reaction, produces biogas, and used for gas for domestic use, the liquid obtained after separated from contaminants obtains regeneration equally, has saved the energy, has also createed other energy for extraneous.
In the present embodiment, in the step a of pollutant treatment process, the siccative water content obtained is 1-20%, and siccative can carry out normal burning process; Preferably, the siccative water content is 1-4%, and siccative burns in burning process and only needs a small amount of fuel can be by the evaporation of the moisture in siccative, and then the fuel that siccative is burnt consume is fully used.
In the present embodiment, in the step b of pollutant treatment process, the combustion-supporting fuel that biogas prepared by anaerobic ferment process burns as siccative, the energy of the treatment system of whole livestock and poultry breeding industry pollutant is recycled, and has reduced the consumption of outside resources.Simultaneously, biogas is as combustion-supporting fuel, but the burning of catalysis siccative, the efficiency of combustion of raising siccative.Except the technical scheme of the present embodiment, the combustion-supporting fuel burned for siccative can also be natural gas, diesel oil etc., and this class A fuel A has heavy-polluted shortcoming simultaneously.
In the present embodiment, in the step b of pollutant treatment process, incineration temperature is 800-1200 ℃, is preferably 1000 ℃, and each composition in siccative fully decomposes, and the flue dust temperature of formation is higher, high for the efficiency of heating steam boiler.Simultaneously, the flue dust temperature after the heating steam boiler reduces, and is about 300-400 ℃, also is convenient to flue dust is carried out to subsequent treatment.
Preferably, siccative carries out first carrying out preheating device before burning disposal, and for siccative is expected to 160 ℃ of left and right, the heat of preheating is the heat in the incinerator burner hearth, and namely preheating device is communicated with the bottom of incinerator.
In the present embodiment, in the step b of pollutant treatment process, the temperature of anaerobic ferment process is 35-45 ℃, and in this temperature range, in the liquid after separated from contaminants, the activity of each composition is high, and anaerobic reaction efficiency is high, and the natural pond made is large-minded.In this technique, the temperature of liquid realizes by the mode of indirect.The solids that anaerobic ferment process obtains can be used for producing harmless fertilizer.
In the present embodiment, in the step b of pollutant treatment process, the clarifying smoke treatment process comprises spray washing, bag-type dust, flue dust temperature after the heating steam boiler reduces, be about 300-400 ℃, flue dust, after spray washing, cloth bag dedusting process, can directly drain in atmosphere.Wherein, spray washing technique comprises with lime slurry and absorbs processing, and carries out adsorption treatment with active carbon, can remove toxic gas in flue dust and the sour gas in flue dust; In like manner, cloth bag dedusting process can be removed the dust granules in flue dust, makes flue dust energy qualified discharge.
In conjunction with Fig. 2, a kind for the treatment of apparatus of livestock and poultry breeding industry pollutant, comprise contaminant collecting pond 1, centrifuge 2, incinerator 6, methane-generating pit 3, steam boiler 7, steam turbine power generation unit 9, smoke and dust purifier, be provided with conveyance conduit between contaminant collecting pond 1 and centrifuge 2;
Between centrifuge 2 and incinerator 6, be provided with siccative groove 4 and conveyer 5, conveyer 5 is delivered to siccative in incinerator 6; Wherein, what conveyer 5 can be in belt conveyor, conveying worm or elevator is a kind of, and siccative can be entered in incinerator continuously;
Centrifuge 2 comprises liquid outlet, and liquid outlet is connected with methane-generating pit 3, makes the liquid after separating enter methane-generating pit, in methane-generating pit, carries out the anaerobic fermentation reaction;
Steam boiler 7 is arranged in incinerator 6, and steam boiler 7 is connected with steam turbine power generation unit 9; Incinerator 6 is connected with smoke and dust purifier; Wherein, steam boiler 7 comprises heat exchanger tube 8, and the water inlet of heat exchanger tube 8 is connected with external water pipe, and the outlet of heat exchanger tube 8 is connected with steam turbine power generation unit 9.
In the present embodiment, smoke and dust purifier comprises spray tower 10, sack cleaner 11 and exhaust chimney 12, and the flue dust temperature in incinerator after the heating steam boiler reduces, and can directly carry out purified treatment.Clarifying smoke comprises spray washing, bag-type dust and soot emissions, and wherein, spray washing is for removing the toxic and harmful of flue dust, and bag-type dust is for removing the dust granules of flue dust, and the flue dust after purifying directly discharges from exhaust chimney.
In the present embodiment, incinerator 6 comprises combustion-supporting fuel inlet, and methane-generating pit 3 comprises methane outlet, methane outlet is communicated with combustion-supporting fuel inlet, and the biogas that methane-generating pit produces offers incinerator, as the combustion-supporting fuel of siccative burning, but the burning of catalysis siccative, the efficiency of combustion of raising siccative.The fuel inlet of incinerator can be connected side by side by a plurality of laterals, and the technical scheme in the present embodiment, combustion-supporting fuel can also be the natural gas beyond this treatment system, coal gas, diesel oil etc.
In the present embodiment, incinerator 6 can arrange the first temperature control equipment, be used to controlling incineration temperature in 800-1200 ℃ of scope.The first temperature control equipment comprises temperature sensor and controller, and temperature sensor is for detection of flue dust temperature in incinerator, and controller is adjusted combustion-supporting fuel flow rate for the flue dust temperature conditions according to detecting.In accompanying drawing, do not express the structure of the first temperature control equipment.
Preferably, incinerator 6 is provided with preheating device, and for siccative is expected to 160 ℃ of left and right, the heat of preheating is the heat in the incinerator burner hearth, and namely preheating device is communicated with the bottom of incinerator.
In the present embodiment, methane-generating pit 3 also can arrange the second temperature control equipment, does not show in accompanying drawing.In methane-generating pit, fluid temperature is at 35-45 ℃ for controlling for the second temperature control equipment, and the anaerobic fermentation reaction is comparatively abundant; And in methane-generating pit, the heating utilisation system waste heat of fluid temperature carries out.
In the present embodiment, exhaust chimney also comprises the flue dust on-Line Monitor Device, for detecting in real time temperature, the dust granules content of discharging flue dust, when detection flue dust discharge capacity is not up to standard, can adjust in time clarifying smoke technique, reduces the pollution to atmosphere.
The treatment process of livestock and poultry breeding industry pollutant provided by the invention and the application for the treatment of apparatus thereof:
45000 of small towns livestock on hand every day live pigs, 6800 of sheep, 7200 of oxen, the amount of pollutant that produce every day is as follows:
Live pig: 3.2Kg/ head * 45000=144t
Sheep: 2.5Kg/ head * 6800=17t
Ox: 9.8Kg/ head * 7200=70t
With treatment process and the treating apparatus thereof of livestock and poultry breeding industry pollutant provided by the invention, process the above pollutant produced, pollutant per ton can produce 320 degree electricity, and annual generated energy reaches 2,698 ten thousand degree, has larger economic worth.Wherein, the specification of supporting steam boiler is 250t, and the specification of steam turbine power generation unit is 3100Kw.
Treatment process and the treating apparatus thereof of the livestock and poultry breeding industry pollutant provided in the present invention, pollutant comprise the fermenting bed padding in feces of livestock and poultry, livestock and poultry cultivation canopy, also can comprise the stalk of livestock and poultry cultivation feed etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing, be equal to replacement etc., within all should being included in protection scope of the present invention in protection scope of the present invention.
Claims (10)
1. the treatment process of a livestock and poultry breeding industry pollutant, is characterized in that, comprises following steps:
A, collection pollutant, carry out centrifugal separating dry space from moist space processing, separates and obtain siccative and liquid;
B, the siccative that step a is obtained burn, and the heat produced in burning process is for the heating steam boiler, and the flue dust of generation carries out the clarifying smoke processing; Liquid carries out the anaerobic fermentation processing, produces biogas;
The steam that in c, step b, steam boiler produces is delivered to the steam turbine power generation unit, for generating.
2. the treatment process of livestock and poultry breeding industry pollutant according to claim 1, is characterized in that, the siccative water content obtained in described step a is 1-20%.
3. the treatment process of livestock and poultry breeding industry pollutant according to claim 2, is characterized in that, in described step b, biogas prepared by anaerobic ferment process is as the combustion-supporting fuel in the siccative burning process.
4. the treatment process of livestock and poultry breeding industry pollutant according to claim 3, is characterized in that, in described step b, incineration temperature is 800-1200 ℃.
5. the treatment process of livestock and poultry breeding industry pollutant according to claim 4, is characterized in that, in described step b, the temperature of anaerobic ferment process is 35-45 ℃.
6. the treatment process of livestock and poultry breeding industry pollutant according to claim 5, is characterized in that, in described step b, the clarifying smoke treatment process comprises spray washing, bag-type dust.
7. the treating apparatus of a livestock and poultry breeding industry pollutant, it is characterized in that, comprise contaminant collecting pond, centrifuge, incinerator, methane-generating pit, steam boiler, steam turbine power generation unit, smoke and dust purifier, be provided with conveyance conduit between described contaminant collecting pond and described centrifuge;
Between described centrifuge and described incinerator, be provided with siccative groove and conveyer, described conveyer is delivered to siccative in described incinerator;
Described centrifuge comprises liquid outlet, and described liquid outlet is connected with described methane-generating pit;
Described steam boiler is arranged in described incinerator, and described steam boiler is connected with described steam turbine power generation unit; Described incinerator is connected with described smoke and dust purifier.
8. the treating apparatus of livestock and poultry breeding industry pollutant according to claim 7, is characterized in that, described incinerator comprises combustion-supporting fuel inlet, and described methane-generating pit comprises methane outlet, and described methane outlet is communicated with described combustion-supporting fuel inlet.
9. the treating apparatus of livestock and poultry breeding industry pollutant according to claim 8, is characterized in that, described smoke and dust purifier comprises spray tower, sack cleaner and exhaust chimney.
10. the treating apparatus of livestock and poultry breeding industry pollutant according to claim 7, is characterized in that, described incinerator is provided with the first temperature control equipment.
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| WO2016173000A1 (en) * | 2015-04-30 | 2016-11-03 | 湖南屎壳郎环境科技有限公司 | Rural bulk organic waste pollutant source comprehensive treatment system and method |
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| CN106145591A (en) * | 2016-08-28 | 2016-11-23 | 莫晨虹 | A kind of biogas septic system for livestock and poultry cultivation |
| CN114525196A (en) * | 2022-03-21 | 2022-05-24 | 国能生物发电集团有限公司 | Constant-temperature methane tank high-temperature steam heat pump heating system utilizing waste heat of biomass boiler |
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