CN104496137B - A kind of energy-conserving and environment-protective process the method for municipal sludge - Google Patents
A kind of energy-conserving and environment-protective process the method for municipal sludge Download PDFInfo
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- CN104496137B CN104496137B CN201410813331.7A CN201410813331A CN104496137B CN 104496137 B CN104496137 B CN 104496137B CN 201410813331 A CN201410813331 A CN 201410813331A CN 104496137 B CN104496137 B CN 104496137B
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Abstract
The present invention provides a kind of method that energy-conserving and environment-protective process municipal sludge, the regulation material of the municipal sludge of moisture 70%～85% with constant weight ratio is blended and forms sludge fermentation material by it, be subsequently placed in the three-dimensional Zymolysis Equipment enterprising Mobile state aerobic fermentation being made up of in vertical direction 2～40 layers, horizontal direction 2～40 groups of ribbon conveyers, biologically dehydrating mummification be moisture less than 50% the mummification material that becomes thoroughly decomposed after make further environmental protection treatment or recycling.The method of the present invention is simple, and floor space is little simultaneously, and ferment effect is good, simultaneously it can be avoided that the secondary pollution of foul smell generation, reaches efficient, the purpose of environmental protection.
Description
Technical field
The invention belongs to municipal sludge energy-conserving and environment-protective process and application technology as the second resource field, be specifically related to a kind of method that energy-conserving and environment-protective process municipal sludge.
Background technology
The data announced by relevant government department, the sludge quantity that moisture is about 80% that the municipal sewage plant having built up operation to China in 2012 produces every year is at about 30,000,000 tons.Along with the further speed up raising with environmental quality standards, treatment rate of domestic sewage and the degree for the treatment of of Urbanization in China improve year by year, the generation amount of mud also can sharply increase.Inevitable outcome as sewage disposal process, the composition of mud is the most complicated, Organic substance that the zoogloea formed by multiple-microorganism adsorbs with it and the aggregation that inorganic matter forms, in addition to containing substantial amounts of moisture, possibly together with Organic substance, volatile material, heavy metal and the salt of difficult degradation, and pathogen and parasitic ovum etc., it is necessary to process in time and dispose, properly functioning and the treatment effect of guarantee sewage treatment plant, it is to avoid cause secondary pollution.
In developed country, specific resistance to filtration is extremely important link in sewage disposal, and its investment accounts for the 50%～70% of sewage treatment plant's gross investment.In existing sewage treatment plant of China, be configured with sludge stabilization treatment facility is less than 25%, process technique and facility the most perfect be less than 10%, wherein can be properly functioning the most few, particularly in the higher big city of the level of urbanization and area, mud outlet has become as the problem that environmental protection is unavoidable great and must solve.Therefore, how generation is measured the mud of huge, complicated after scientific disposal so that it is minimizing, innoxious, resource, it has also become whole world environment circle is deeply for the problem paid close attention to.
In world wide, the process to mud is disposed, past is based on sanitary landfills, but the most rare along with land resource, the recycling of mud has become as the major trend of development, and recycling is especially based on the compost Land_use change of mud, sludge composting land utilization ratio such as the U.S. alreadys more than 60%, and European Union, Japan etc. are then between 40%～50%, and these ratios also rise quickly.Therefore, complying with world trends, it should be more populous, the process direction of land resource such country of China of scarcity relatively that the compost Land_use change of mud namely manure resourcesization utilize.
Either manure resourcesization utilizes, or the processing mode such as landfill, building materials, burning, and its premise is required for mud is carried out mummification and disposal of stability.With regard to the mummification of mud and stable, the most commonly used in society is drying, dry in the sun, three kinds of methods of pile fermentation.Owing to sludge moisture content is high and be that cellular water, granule be little, viscosity high, making the most above-mentioned three kinds of ways all not have to solve well the mummification problem of mud, be first that the energy consumption cost of drying is the highest, society is difficult to bear, and tail gas secondary pollution is serious；Secondly dry in the sun is lived at the mercy of the elements, and treatment effeciency is low, and treating capacity is little, it is impossible to continuous synchronization stabilized treatment, and needs to build large-area threshing ground；3rd compost is mainly based on the slot type of plane open type and article buttress formula compost, inefficient, the cycle is long, and the secondary environmental pollution ratio of compost foul smell is more serious, and needs a large amount of compost place.Therefore, rarely have now and see successful Engineering Projects, the most most sewage treatment plant of a most critically important reason is all that layout construction is in city proper, environmental requirement is strict, do not allow the fossil fuels such as burning coal, soil is very limited and valuable, in addition do not account at the beginning of planning, at all not used for the large area place of Treatment of Sludge in sewage treatment plant, and it is the most impossible to all amplification edges again, cause mud minimizing to process on the spot, also ultimately result in said method and cannot solve sludge handling problem at all.
Therefore, currently really to solve environmental protection treatment and the recycling problem of mud, it is necessary to have one can adapt to current sewage treatment plant Present Layout Situation, the existing very limited amount of soil of sewage treatment plant or space can be used to carry out the most innoxious, minimizing efficiently process, and very energy-conserving and environment-protective, entirely without secondary pollution, the method reaching the environmental requirement of urban population compact district.But not yet it is found to have the method that disclosure satisfy that so requirement on present society.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of energy-conserving and environment-protective process the method for municipal sludge, and the method is the most energy-conservation, again environmental protection, and efficiently.
It is an object of the invention to be achieved through the following technical solutions:
A kind of energy-conserving and environment-protective process the method for municipal sludge, the regulation material of the municipal sludge of moisture 70%～85% with constant weight ratio is blended and forms sludge fermentation material, be subsequently placed in the three-dimensional Zymolysis Equipment enterprising Mobile state aerobic fermentation being made up of in vertical direction 2～40 layers, horizontal direction 2～40 groups of ribbon conveyers, biologically dehydrating mummification be moisture less than 50% the mummification material that becomes thoroughly decomposed after make further environmental protection treatment or recycling.
Preferred as technical scheme, municipal sludge is 3～10: 1 with the mixture weight ratio of regulation material.
As further preferably, the moisture of described sludge fermentation material is 50%～70%, and carbon-nitrogen ratio is 20～35: 1, and pH value is 3～6；Aerobic fermentation uses microorganism naturally to inoculate.
As further preferably, described regulation material is the combination of the one or more than one in sugar mill mud, bagasse, sucrose, Testa oryzae, TONGKANG, Testa Tritici, Semen Maydis powder, bean cake, straw stalk, cassava starch dregs, manioc vinasse slag, beer residue, marc, Chinese herb residues, Pericarppium arachidis hypogaeae, wood bran, bark powder, coconut palm bran, tobacco shred, soddy soil, changing food waste, Boiler Ash, paper mill sludge, ethanol mud, fowl and animal excrement, silkworm faeces or bran cake powder.
As further preferably, described three-dimensional Zymolysis Equipment is provided with airtight fermenting cellar, and described ribbon conveyer is installed in this sealed fermenting room；Offering air inlet bottom this fermenting cellar, top arranges and is provided with the dedusting deodoration system that fermentation tail gas carries out dedusting deodorization purified treatment；The air box impulse sack cleaner dedusting of this dedusting deodoration system, with UV photodissociation oxidation deodoriser or ozone oxidation deodoriser deodorization.
As further preferably, the conveyer belt width of described ribbon conveyer is 1～6m, for rubber strip with holes, plastics guipure or metal mesh belt.
As further preferably, the fermentation material layer thickness that described sludge fermentation material is laid in three-dimensional Zymolysis Equipment is 150～600mm.
As further preferably, the described further environmental protection treatment of mummification material of becoming thoroughly decomposed is sanitary landfills, and recycling is that burning, building materials, organic fertilizer or engineering are banketed.
As further preferably, the formation that completes to ferment of described sludge fermentation material is become thoroughly decomposed after mummification material, and instrumentality material screen therein branches away the blending fermentation process being back to fresh sludge, or the direct reuse part mummification material that becomes thoroughly decomposed blends fresh sludge fermentation process.
As further preferably, described energy-conserving and environment-protective process the method for municipal sludge, and it comprises the following steps:
(1) municipal sludge and regulation material are blended by weight proportion, stir；
(2) blend, stir after sludge fermentation material rise to three-dimensional Zymolysis Equipment by material lift equipment and be positioned at the ribbon conveyer of top, uniformly it is deployed to conveyer belt from feed end, the running speed of regulation ribbon conveyer, making sludge fermentation material just be covered with conveying zone face, thickness of feed layer controls in the range of belt edge height；
(3) it is covered with the whole piece conveyer belt of top when sludge fermentation material, discharge end temperature of charge reaches to turn more than temperature 50 C, it is the most consistent that material is then transported to the speed of service below by the ribbon conveyer of top layer, on the conveying zone face of direction ribbon conveyer in contrast, the freshest sludge fermentation material is promoted to the feed end of top layer ribbon conveyer, synchronization is deployed on conveyer belt, when the most fermented sludge fermentation material is all transported on next layer of ribbon conveyer, fresh sludge fermentation material is the most just covered with the ribbon conveyer of top layer, circulate successively, fresh sludge fermentation material is constantly added from the ribbon conveyer being positioned at top layer, progressively fermentation maturity mummification during successively conveying downwards；
(4) after the temperature in sludge fermentation material declines and progressively tends to room temperature, sludge fermentation material fermentation terminates, being converted into the mummification material that becomes thoroughly decomposed, by becoming thoroughly decomposed, mummification material transports out from the ribbon conveyer of three-dimensional Zymolysis Equipment, makees further environmental protection treatment or recycling.
As further preferably, described sludge fermentation material is installed in the material forming device above its feed end before being deployed to top layer ribbon conveyer and is squeezed into lamellar or strip, when last layer ribbon conveyer is transported to next layer of ribbon conveyer, the breaker being installed between two-layer conveyer crushes, puddles, cools down.
Beneficial effects of the present invention:
One is to use three-dimensional Zymolysis Equipment that mud carries out drying and other treatment of fermenting, in the case of Zymolysis Equipment facility investment is substantially suitable, formula fermentation can be piled up neatly with the slot type of Billy's plane or bar and save the fermentation place of more than 90%, as processed 300,000 tons of sewage, the medium-and-large-sized sewage treatment plant of 300 tons of mud of daily output a day, fermentation process place only needs 2000m2Left and right is enough.
Two is owing to using stereo multilayer fermentation, the bed of material of sludge fermentation material is set to the ideal thickness of about 300mm, and the supporting body that ferments is designed to the netted of highly-breathable, the whole bed of material is made all to have good breathability, it is in good aerobic fermentation state, effectively suppress the carrying out of anaerobic fermentation, sweat produces without foul smell, effectively solve the secondary environmental pollution problem of fermentation odor, and sludge fermentation material becomes thoroughly decomposed, mummification only needs 10～12 days to moisture less than 50%, period ratio slot type or bar buttress formula fermentation shorten more than 70%, need not the drying of any modes such as coal electricity, dewatered sludge energy consumption per ton is only about 30 yuan, than drying mode energy-conservation more than 90%.
Three is that fermentation drying and other treatment process can realize automatization's line production, has possessed batch production, scale, serialization and has immediately processed and utilize condition.
Four is that sludge fermentation is become thoroughly decomposed fully, Nutrient Transformation and pathogen, parasitic ovum thorough killing, utilizes for manure resourcesization and provides essential condition.
Therefore; the present invention is one and is fully able to adapt to current sewage treatment plant Present Layout Situation; use the existing very limited amount of soil of sewage treatment plant or space to carry out batch production on the spot, scale, serialization, innoxious, minimizing efficiently process; and very energy-conserving and environment-protective; non-secondary pollution; reach the processing method of urban population compact district environmental requirement, can fundamentally solve environmental protection treatment and the recycling problem of mud.
Detailed description of the invention
Below by specific embodiment, technical scheme is further elaborated explanation.
Embodiment one:
Energy-conserving and environment-protective of the present invention process the method for municipal sludge: with part by weight be 80%, moisture be 80% municipal sludge and part by weight be 20%, moisture be 10% manioc vinasse slag be blended into the sludge fermentation material of moisture 66%, be subsequently placed in a set of by horizontal direction by 5 groups, in vertical direction 12 layers, conveyer belt width be 4m the dynamic solid formula Zymolysis Equipment enterprising Mobile state aerobic fermentation that constituted of ribbon conveyer 12 days, be directly used as organic fertilizer after being converted into the mummification material that becomes thoroughly decomposed of moisture 42% and use；Sweat use microorganism naturally inoculate；The thickness of feed layer that sludge fermentation material is laid in belt of belt conveyor is 350mm.It is as follows that it processes step:
(1) rendering in continuous stirring device by automatic batching system in the ratio of 8:2 by municipal sludge and manioc vinasse slag, the outfan at agitating device has obtained and has blended and the sludge fermentation material of stirring；
(2) sludge fermentation material is promoted respectively by high angle belt conveyer conveyer the top of the ribbon conveyer being transported to three-dimensional installation, uniformly it is deployed to conveyer belt from the feed end of the ribbon conveyer of top, before falling conveyer belt, the pulley type roll-in twin rollers of the side of being attached thereon is rolled into the lamellar that about 5mm is thick, the gap in sludge fermentation material is increased with this, increase the breathability in the bed of material, microorganism is conducive to naturally to inoculate and be rapidly heated, the running speed of regulation ribbon conveyer, sludge fermentation material is made just to be covered with conveying zone face, thickness of feed layer controls at 350mm, and make sludge fermentation material uniformly be covered with the whole piece conveyer belt of top with this speed, then ribbon conveyer is stopped, sludge fermentation material is allowed to carry out natural microorganisms inoculation at air；
null(3) after about 24 hours，Temperature in the sludge fermentation material of the ribbon conveyer outfan being in top reaches 60～65 DEG C，Start top simultaneously and keep consistent with the ribbon conveyer of below a layer their transporting velocity，The traffic direction of the ribbon conveyer of lower floor is contrary with top，Sludge fermentation material on top layer ribbon conveyer falls on the conveying zone face of next layer of ribbon conveyer equably，The elevated feed end being delivered to top layer ribbon conveyer of the freshest sludge fermentation material，Synchronization is deployed on conveyer belt，When the most fermented sludge fermentation material is all transported on next layer of ribbon conveyer，Fresh sludge fermentation material is the most just covered with the ribbon conveyer of top layer，Thus and thus，Sludge fermentation material on ribbon conveyer is from top to bottom，Every day falls into next layer of ribbon conveyer from the ribbon conveyer being positioned at last layer，And fresh sludge fermentation material is constantly added from the ribbon conveyer being positioned at top layer，Sludge fermentation material is during the most successively declining conveying，Constantly carry out puddling and in depth fermentation tends to mummification of becoming thoroughly decomposed；
(4) when filter mud fermentation material drops to Floor 12, temperature in material has fallen to tend to room temperature, sludge fermentation material fermentation terminates, have been converted into the mummification material that becomes thoroughly decomposed, by becoming thoroughly decomposed, mummification material transports out through connecting the conveying equipment being arranged on Floor 12 ribbon conveyer rear end, is directly used as organic fertilizer and is applied to forest land or agricultural planting land used.
Embodiment two:
The energy-conserving and environment-protective of the present invention process the method for municipal sludge: be 75% with part by weight, moisture is the municipal sludge of 80%, part by weight is 10%, moisture be 10% bagasse and part by weight be 15%, moisture be 10% cassava starch dregs be blended into the sludge fermentation material of moisture 62.5%, be subsequently placed in a set of by horizontal direction by 10 groups, in vertical direction 12 layers, the dynamic solid formula Zymolysis Equipment enterprising Mobile state aerobic fermentation that the ribbon conveyer that conveyer belt width is 4m is constituted 12 days, the Organic Ingredients of production and processing Commodity Organic Fertilizer it is used as after being converted into the mummification material that becomes thoroughly decomposed of moisture 35%；Sweat use microorganism naturally inoculate；The thickness of feed layer that filter mud fermentation material is laid in belt of belt conveyor is 300mm.Its fermentation process step is as follows:
(1) rendering in continuous stirring device by automatic batching system in the ratio of 7.5:1:1.5 with cassava starch dregs by municipal sludge, bagasse, the outfan at agitating device has obtained and has blended and the sludge fermentation material of stirring；
(2) sludge fermentation material is promoted respectively by high angle belt conveyer conveyer the top of the ribbon conveyer being transported to three-dimensional installation, uniformly it is deployed to conveyer belt from the feed end of the ribbon conveyer of top, before falling conveyer belt, the pulley type roll-in twin rollers of the side of being attached thereon is rolled into the lamellar that about 5mm is thick, the gap in sludge fermentation material is increased with this, increase the breathability in the bed of material, microorganism is conducive to naturally to inoculate and be rapidly heated, the running speed of regulation ribbon conveyer, sludge fermentation material is made just to be covered with conveying zone face, thickness of feed layer controls at 300mm, and make sludge fermentation material uniformly be covered with the whole piece conveyer belt of top with this speed, then ribbon conveyer is stopped, sludge fermentation material is allowed to carry out natural microorganisms inoculation at air；
null(3) it is 144m by the Design of length of the ribbon conveyer of every layer，Transporting velocity is set as 0.1m/min，Sludge fermentation material falls into conveyer belt to the outfan being transported to ribbon conveyer from the input of the ribbon conveyer being in top and just experiences the fermentation time of about 24 hours，Now the temperature in sludge fermentation material can reach 60～65 DEG C，Start the ribbon conveyer of the from top to bottom second layer and the vane type roll-in twin rollers above it，The transporting velocity of the ribbon conveyer of the regulation second layer is consistent with the holding of top layer，Conveying direction is in contrast，Sludge fermentation material on top layer ribbon conveyer falls into vane type roll-in twin rollers equably，Fall into after being broken on the conveying zone face of second layer ribbon conveyer，The freshest sludge fermentation material is then inputted from the feed end of the ribbon conveyer of top layer continuously and is deployed to equably conveyer belt，Carry out nature inoculation fermentation while being fed forward，Sludge fermentation material reaches 24 hours to be conveyed on conveying direction in contrast next layer ribbon conveyer in the conveyer belt top fermentation of any layer ribbon conveyer，Thus and thus，When fresh sludge fermentation material is from the beginning of the ribbon conveyer being transfused to top layer，Successively decline from top to bottom，Carry while fermenting，Constantly carry out puddling and in depth fermentation tends to mummification of becoming thoroughly decomposed；
(4) conveying of 12 days is experienced when sludge fermentation material, have been delivered to the outfan of Floor 12 ribbon conveyer, now the temperature in material has fallen to tend to room temperature, sludge fermentation material fermentation terminates, have been converted into the mummification material that becomes thoroughly decomposed, start and be connected to the clinker conveyor machine of the Floor 12 ribbon conveyer outfan mummification material that will become thoroughly decomposed and be transported to packing shop and directly pack, or be transported in the feed proportioning system of next production line, for processing Commodity Organic Fertilizer product.
Embodiment three:
The energy-conserving and environment-protective of the present invention process the method for municipal sludge: be 80% with part by weight, moisture is the municipal sludge of 80%, part by weight is 10%, moisture be 10% bagasse and part by weight be 10%, moisture be 10% TONGKANG be blended into the sludge fermentation material of moisture 66%, be subsequently placed in a set of by horizontal direction by 5 groups, in vertical direction 12 layers, the dynamic solid formula Zymolysis Equipment enterprising Mobile state aerobic fermentation that the ribbon conveyer that conveyer belt width is 3m is constituted 12 days, it is used as biomass fuel after being converted into the mummification material that becomes thoroughly decomposed of moisture 40% to burn；Sweat use microorganism naturally inoculate；The thickness of feed layer that sludge fermentation material is laid in belt of belt conveyor is 300mm.Its production stage is as follows:
(1) rendering in continuous stirring device by automatic batching system in the ratio of 8:1:1 with TONGKANG by municipal sludge, bagasse, the outfan at agitating device has obtained and has blended and the sludge fermentation material of stirring；
(2) sludge fermentation material is promoted respectively by high angle belt conveyer conveyer the top of the ribbon conveyer being transported to three-dimensional installation, uniformly it is deployed to conveyer belt from the feed end of the ribbon conveyer of top, before falling conveyer belt, the pulley type roll-in twin rollers of the side of being attached thereon is rolled into the lamellar that about 5mm is thick, the gap in sludge fermentation material is increased with this, increase the breathability in the bed of material, microorganism is conducive to naturally to inoculate and be rapidly heated, the running speed of regulation ribbon conveyer, sludge fermentation material is made just to be covered with conveying zone face, thickness of feed layer controls at 300mm, and make sludge fermentation material uniformly be covered with the whole piece conveyer belt of top with this speed, then ribbon conveyer is stopped, sludge fermentation material is allowed to carry out natural microorganisms inoculation at air；
null(3) after about 24 hours，Temperature in the sludge fermentation material of the ribbon conveyer outfan being in top reaches 60～65 DEG C，Start top simultaneously and keep consistent with the ribbon conveyer of below a layer their transporting velocity，The traffic direction of the ribbon conveyer of lower floor is contrary with top，Sludge fermentation material on top layer ribbon conveyer falls on the conveying zone face of next layer of ribbon conveyer equably，The elevated feed end being delivered to top layer ribbon conveyer of the freshest sludge fermentation material，Synchronization is deployed on conveyer belt，When the most fermented sludge fermentation material is all transported on next layer of ribbon conveyer，Fresh sludge fermentation material is the most just covered with the ribbon conveyer of top layer，Thus and thus，Sludge fermentation material on ribbon conveyer is from top to bottom，Every day falls into next layer of ribbon conveyer from the ribbon conveyer being positioned at last layer，And fresh sludge fermentation material is constantly added from the ribbon conveyer being positioned at top layer，Sludge fermentation material is during the most successively declining conveying，Constantly carry out puddling and in depth fermentation tends to mummification of becoming thoroughly decomposed；
(4) when sludge fermentation material drops to Floor 12, temperature in material has fallen to tend to room temperature, sludge fermentation material fermentation terminates, have been converted into the mummification material that becomes thoroughly decomposed, by becoming thoroughly decomposed, mummification material transports out through connecting the conveying equipment being arranged on Floor 12 ribbon conveyer rear end, burns as biomass fuel.
Embodiment four:
The energy-conserving and environment-protective of the present invention process the method for municipal sludge: be 75% with part by weight, moisture be 80% municipal sludge and part by weight be 15%, moisture be 10% straw stalk powder and part by weight be 10%, moisture be 10% coconut palm bran be blended into the sludge fermentation material of moisture 62.5%, be subsequently placed in a set of by horizontal direction by 5 groups, in vertical direction 10 layers, the dynamic solid formula Zymolysis Equipment enterprising Mobile state aerobic fermentation that the ribbon conveyer that conveyer belt width is 3m is constituted 10 days, it is converted into the mummification material that becomes thoroughly decomposed of moisture 37%, straw stalk powder therein and coconut palm bran are screened out and is back to fermentation process blending next time, rest materials is used as biomass fuel and burns；Sweat use microorganism naturally inoculate；The thickness of feed layer that sludge fermentation material is laid in belt of belt conveyor is 300mm.Its production stage is as follows:
(1) rendering in continuous stirring device by automatic batching system in the ratio of 7.5:1.5:1 with coconut palm bran by municipal sludge, straw stalk powder, the outfan at agitating device has obtained and has blended and the sludge fermentation material of stirring；
(2) sludge fermentation material is promoted respectively by high angle belt conveyer conveyer the top of the ribbon conveyer being transported to three-dimensional installation, uniformly it is deployed to conveyer belt from the feed end of the ribbon conveyer of top, before falling conveyer belt, the pulley type roll-in twin rollers of the side of being attached thereon is rolled into the lamellar that about 5mm is thick, the gap in sludge fermentation material is increased with this, increase the breathability in the bed of material, microorganism is conducive to naturally to inoculate and be rapidly heated, the running speed of regulation ribbon conveyer, sludge fermentation material is made just to be covered with conveying zone face, thickness of feed layer controls at 300mm, and make sludge fermentation material uniformly be covered with the whole piece conveyer belt of top with this speed, then ribbon conveyer is stopped, sludge fermentation material is allowed to carry out natural microorganisms inoculation at air；
null(3) after about 24 hours，Temperature in the sludge fermentation material of the ribbon conveyer outfan being in top reaches 60～65 DEG C，Start top simultaneously and keep consistent with the ribbon conveyer of below a layer their transporting velocity，The traffic direction of the ribbon conveyer of lower floor is contrary with top，Sludge fermentation material on top layer ribbon conveyer falls on the conveying zone face of next layer of ribbon conveyer equably，The elevated feed end being delivered to top layer ribbon conveyer of the freshest sludge fermentation material，Synchronization is deployed on conveyer belt，When the most fermented sludge fermentation material is all transported on next layer of ribbon conveyer，Fresh sludge fermentation material is the most just covered with the ribbon conveyer of top layer，Thus and thus，Sludge fermentation material on ribbon conveyer is from top to bottom，Every day falls into next layer of ribbon conveyer from the ribbon conveyer being positioned at last layer，And fresh sludge fermentation material is constantly added from the ribbon conveyer being positioned at top layer，Sludge fermentation material is during the most successively declining conveying，Constantly carry out puddling and in depth fermentation tends to mummification of becoming thoroughly decomposed；
(4) when sludge fermentation material drops to Floor 12, temperature in material has fallen to tend to room temperature, sludge fermentation material fermentation terminates, have been converted into the mummification material that becomes thoroughly decomposed, the screening plant that the mummification material that becomes thoroughly decomposed is conveyed into installation its rear end through connecting the conveying equipment being arranged on Floor 12 ribbon conveyer rear end sieves, the straw stalk powder sifted out and coconut palm bran conveying equipment are transported to the storehouse that feeds intake of automatic batching system, being back to the blending fermentation process next time of mud, remaining material is used as biomass fuel and burns.
Impacting environment to reduce the foul smell distributed in fermentation materials in sweat and dust, arranged by described ribbon conveyer and be installed in airtight fermenting cellar, the bottom of fermenting cellar arranges air inlet, and top arranges and is provided with dedusting deodoration system；The air box impulse sack cleaner dedusting of this dedusting deodoration system, aoxidizes deodoriser deodorization with UV photodissociation, it is also possible to ozone oxidation deodoriser deodorization.In sweat, open dedusting deodoration system, ozone enters in fermenting cellar from the bottom of fermenting cellar, fermentation tail gas with frowziness and dust is sucked wherein by dedusting deodoration system at the top of fermenting cellar, removing dust deodorization is discharged in air after purifying, and the foul smell and the dust that are prevented effectively from sweat produce secondary pollution to external environment condition.
Claims (8)
1. the method that energy-conserving and environment-protective process municipal sludge, it is characterized in that: the regulation material of the municipal sludge of moisture 70% ~ 85% with constant weight ratio is blended and forms sludge fermentation material, be subsequently placed in vertical direction by 2 ~ 40 layers, the three-dimensional Zymolysis Equipment enterprising Mobile state aerobic fermentation that constitutes of 2 ~ 40 groups of ribbon conveyers of horizontal direction, biologically dehydrating mummification be moisture less than 50% the mummification material that becomes thoroughly decomposed after make further environmental protection treatment or recycling；
The moisture of described sludge fermentation material is 50% ~ 70%, and carbon-nitrogen ratio is 20 ~ 35:1, and pH value is 3 ~ 6；Aerobic fermentation uses microorganism naturally to inoculate；
Described three-dimensional Zymolysis Equipment is provided with airtight fermenting cellar, and described ribbon conveyer is arranged in airtight fermenting cellar；Offering air inlet bottom described fermenting cellar, top arranges and is provided with the dedusting deodoration system that fermentation tail gas carries out dedusting deodorization purified treatment；Described dedusting deodoration system air box impulse sack cleaner dedusting, with UV photodissociation oxidation deodoriser or ozone oxidation deodoriser deodorization.
Energy-conserving and environment-protective the most according to claim 1 process the method for municipal sludge, it is characterised in that: described regulation material is the combination of the one or more than one in sugar mill mud, bagasse, sucrose, Testa oryzae, TONGKANG, Testa Tritici, Semen Maydis powder, bean cake, straw, cassava starch dregs, manioc vinasse slag, beer residue, marc, Chinese herb residues, Pericarppium arachidis hypogaeae, wood bran, bark powder, coconut palm bran, tobacco shred, soddy soil, changing food waste, Boiler Ash, paper mill sludge, ethanol mud, fowl and animal excrement, silkworm faeces or bran cake powder.
Energy-conserving and environment-protective the most according to claim 1 process the method for municipal sludge, it is characterised in that: the conveyer belt width of described ribbon conveyer is 1 ~ 6m, for rubber strip with holes, plastics guipure or metal mesh belt.
Energy-conserving and environment-protective the most according to claim 1 process the method for municipal sludge, it is characterised in that: the fermentation material layer thickness that described sludge fermentation material is laid on the conveyer belt of ribbon conveyer is 150 ~ 600mm.
Energy-conserving and environment-protective the most according to claim 1 process the method for municipal sludge, it is characterised in that: the described further environmental protection treatment of mummification material of becoming thoroughly decomposed is sanitary landfills, and recycling is that burning, building materials, organic fertilizer or engineering are banketed.
Energy-conserving and environment-protective the most according to claim 1 process the method for municipal sludge, it is characterized in that: the formation that completes to ferment of described sludge fermentation material is become thoroughly decomposed after mummification material, instrumentality material screen therein is branched away the blending fermentation process being back to fresh sludge, or the direct reuse part mummification material that becomes thoroughly decomposed blends fresh sludge fermentation process.
Energy-conserving and environment-protective the most according to claim 1 process the method for municipal sludge, it is characterised in that comprise the following steps:
(1) municipal sludge and regulation material are blended by weight proportion, stir；
(2) blend, stir after sludge fermentation material rise to three-dimensional Zymolysis Equipment by material lift equipment and be positioned at the ribbon conveyer of top, uniformly it is deployed to conveyer belt from feed end, the running speed of regulation ribbon conveyer, making sludge fermentation material just be covered with conveying zone face, thickness of feed layer controls in the range of belt edge height；
(3) it is covered with the whole piece conveyer belt of top when sludge fermentation material, discharge end temperature of charge reaches to turn more than temperature 50 C, it is the most consistent that material is then transported to the speed of service below by the ribbon conveyer of top layer, on the conveying zone face of direction ribbon conveyer in contrast, the freshest sludge fermentation material is promoted to the feed end of top layer ribbon conveyer, synchronization is deployed on conveyer belt, when the most fermented sludge fermentation material is all transported on next layer of ribbon conveyer, fresh sludge fermentation material is the most just covered with the ribbon conveyer of top layer, circulate successively, fresh sludge fermentation material is constantly added from the ribbon conveyer being positioned at top layer, progressively fermentation maturity mummification during successively conveying downwards；
(4) after the temperature in sludge fermentation material declines and progressively tends to room temperature, sludge fermentation material fermentation terminates, being converted into the mummification material that becomes thoroughly decomposed, by becoming thoroughly decomposed, mummification material transports out from the ribbon conveyer of three-dimensional Zymolysis Equipment, makees further environmental protection treatment or recycling.
Energy-conserving and environment-protective the most according to claim 7 process the method for municipal sludge, it is characterized in that: described sludge fermentation material is installed in the material forming device above its feed end before being deployed to top layer ribbon conveyer and is squeezed into lamellar or strip, when last layer ribbon conveyer is transported to next layer of ribbon conveyer, the breaker being installed between two-layer conveyer crushes, puddles, cools down.
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| CN106242676A (en) * | 2016-08-31 | 2016-12-21 | 广西力源宝科技有限公司 | Fermentation automatic blending promotes system and dispensing method for improving |
| CN106495945B (en) * | 2016-11-01 | 2018-04-13 | 湖南恒凯环保科技投资有限公司 | A kind of method that soil conditioner is quickly prepared using municipal sludge |
| CN106508820A (en) * | 2016-11-21 | 2017-03-22 | 广东环境保护工程职业学院 | Method for processing sludge, kitchen waste and straw from village |
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| CN101148309A (en) * | 2007-09-03 | 2008-03-26 | 张锦华 | Belt-type sludge drier |
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