One kind is dusted deodorizing method and odor removal and its applicationTechnical field
The invention belongs to waste gas purification technical field, it is related to one kind and dusts deodorizing method and odor removal and its application, especiallyIt is related to a kind of dust deodorizing method and odor removal processed for fish meal.
Background technology
The species of the fish meal and fish slurry largely used in aquatic products and feed for pet production, its odor unit produced and fish,Freshness, processing method when growing environment, processing, storage method have certain relation.This kind of material is from bin to fortuneUsed to feed factory, can all occur a certain degree of qualitative change, the result of qualitative change be fish body protein from the various amino acid of melt into, andIt is set to produce sulfur-containing compound, ammonia and biogenic amine, organic acid etc. by the effect of bacterium.Such material has very strong evilStink.In addition, fat, oils and food leftover bits and pieces, can also produce bad smell.
At present, the usually used deodorizing method of feed factory is liquid absorption deodorization process, and liquid absorption is to utilize water absorption, acidIn alkali and etc. remove the stench composition in gas.As shown in figure 1, the odor removal used by existing liquid absorption deodorization processStructure chart, its deodorization process flow principle is：Foul smell is inhaled into tower body under blower negative pressure effect, by packing layer, is given upGas carries out gas-liquid two-phase with absorbing liquid and fully contacted after absorption neutralization reaction, odor purification, then by blower fan after demisting layer demistingIt is discharged into air.Absorbing liquid after bottom of towe is pressurized through water pump tower top spray and under, be finally back to bottom of towe recycling；Work as absorptionAfter liquid saturation, absorbing liquid need to be changed, waste liquid needs otherwise processed.
But a kind of foul smell complicated of feed factory, alone absorbing liquid does not reach deodorizing effect, therefore generally requires to useA variety of absorbing liquids, and each absorption tower is used in series；So, deodoration system is allowed for huge, equipment investment cost is high, andAnd also high is required to the operation maintenance of equipment；The waste liquid of generation needs otherwise processed.
The content of the invention
The present invention, using above mentioned problem present in liquid absorption deodorization process, proposes a kind of purification effect for existing feed factoryReally good, odor removal efficient is high and simple in construction, production cost is low dust deodorizing method and its odor removal.
To achieve the above object, the present invention uses following technical scheme：
The first aspect of the invention is to provide one kind and dusted deodorizing method, and foul smell is introduced in deodorization tank, with passing through sprayThe deodorization powder mixing that powder device is sprayed into deodorization tank, makes the absorption of deodorization powder, the stench composition neutralized in foul smell, through deodorizationGas afterwards is emitted into air or concentrates reprocessing again after removing dust filter is filtered.
Further, in the described deodorizing method that dusts, the deodorization powder is used with the mode that the foul smell is mixedContrainjection is mixed.
Further, in the described deodorizing method that dusts, the deodorization powder is selected from silica gel, activated carbon, zeolite pointOne or more of mixtures in sub- sieve, activated alumina, calcium oxide (lime).
Further, in the described deodorizing method that dusts, with the mixed deodorant powder of the foul smell in the deodorization tankBody and the deodorization powder after dust removal filter filtering, which are added after collection in the dusting device, to carry out repeating profitWith.
Further, in the described deodorizing method that dusts, the wind speed of foul smell is 0.5-1.0m/s in the deodorization tank,So that foul smell can have enough mixing times of contact with deodorization powder.
The second aspect of the invention is to provide one kind and dusted odor removal, including be sequentially connected air-introduced machine 12, dedustingDevice 10, deodorization tank and dusting device, wherein：
The deodorization tank includes tank body 2, the air outlet 1 for being arranged at the top of tank body 2 and is arranged at entering for the lower sides of tank body 2Air port 4, the bottom of the tank body 2 is back taper physique structure, and the air outlet 1 is connected with the air inlet of the deduster 10；
The dusting device is made up of the duster 7 being sequentially connected, discharge tube 9 and the dust nozzle 3 with some mouths that dust,The dust nozzle 3 is installed in the internal upper part position of tank body 2；
In the deodorization tank, the foul smell from bottom to top introduced by the air-introduced machine 12 from the air inlet 4 with fromThe deodorization powder mixing that the dust nozzle 3 sprays from top to bottom, the gas after deodorization enters the deduster by air outlet 110 carry out dust removal process.
Further, dusted in described on odor removal, in addition to be arranged at the rotary discharge valve of the bottom of tank body 25, the rotary discharge valve 5 is connected with the feed hopper 8 of the duster 7.
Further, dusted in described on odor removal, the dust nozzle 3 at least two, and upper and lower clothing are located at instituteState the upper position in tank body 2.
Further, dusted in described on odor removal, the deduster 10 be sack cleaner, and its bottom setThere is collection ash bucket 11.
Further, dusted in described on odor removal, aiutage 13 is provided with the air outlet of the air-introduced machine 12.
Further, dusted in described on odor removal, the bottom of tank body 2 is provided with for supporting the tank body 2Supporting leg 6.
Further, dusted in described on odor removal, the air inlet 4 is by the way of horizontal air intake so that smellyGas is horizontally entered into tank body 2 from air inlet 4, is then flowed up in the presence of air-introduced machine 12, through deodorization powder mixing deodorizationThe deduster 10 is entered by the air outlet 1 at the top of tank body 2 afterwards and carries out dust removal process.
The third aspect of the invention is to provide one kind and dusts odor removal as described above in fish meal or fish slurry deodorizing processApplication.
The present invention uses above-mentioned technical proposal, compared with prior art, have the following technical effect that：
The present invention the deodorizing method that dusts mainly solve deodoration system present in existing liquid absorption deodorization process it is huge, productionThe problem of raw waste liquid；This method makes different deodorization powder be mixed in cylinder with foul smell by using dusting device, absorption,The stench composition in foul smell is neutralized, to reach deodorization purpose, gas after deodorization is discharged after the filtering of removing dust device again, collectionDeodorization powder is recyclable, reduces production cost；Set using multistage dust nozzle, deodorization powder is mixed with foul smellIt is more abundant, the clean-up effect of foul smell is substantially increased, environment is protected；And the odor removal structure structure of dusting of the present inventionBe simple and convenient to operate, it is reliable and stable, it is effective to absorb oxious component, foul smell in foul smell during for fish meal or fish slurry deodorizing processGood purification, the utilization of saving water resource, effectively reduction exhaust air deodorization purification cost, with good application value.
Brief description of the drawings
Fig. 1 is the process flow diagram for the liquid absorption deodorization process that prior art is used；
Fig. 2 is a kind of structural representation for the odor removal that dusts of the present invention；
Wherein, 1- air outlets；2- tank bodies；3- dust nozzles；4 air inlets；5- rotary discharge valves；6- supporting legs；7 dusters；8-Feed hopper；9- discharge tubes；10- dedusters；11- collection ash buckets；12- air-introduced machines；13- aiutages.
Embodiment
The present invention is described in more detail below by specific embodiment, for a better understanding of the present invention,But following embodiments are not intended to limit the scope of the invention.
The present embodiment provides a kind of deodorizing method that dusts being used in fish meal production process, first, will be smelly by air-introduced machineGas is introduced in deodorization tank, is mixed with the deodorization powder sprayed into by dusting device into deodorization tank, is made the absorption of deodorization powder, is neutralizedStench composition in foul smell；Then, the gas after deodorization is passed through in deduster in the presence of air-introduced machine and carries out dust removal and filtration,Gas after filtering is emitted into air or concentrated and reprocessed by air-introduced machine.In deodorization tank with the mixed deodorization powder of foul smell,And the deodorization powder after the filtering of removing dust filter is added after collection and reused in dusting device, reduces productionCost.
As a preferred technical scheme of the present embodiment, the mode that deodorization powder is mixed with foul smell uses contrainjectionMixing, makes deodorization powder be mixed with foul smell more abundant, substantially increases the clean-up effect of foul smell.In addition, the wind of control foul smellSpeed is 0.5-1.0m/s, so that foul smell can have enough mixing times of contact with deodorization powder, further improves odor purification effectReally.For the foul smell produced by fish meal or fish slurry production process, deodorization powder be selected from silica gel, activated carbon, zeolite molecular sieve,One or more of mixtures in activated alumina, calcium oxide (lime).Preferably, deodorization powder is activated carbon, calcium oxide(lime).
For the present invention the deodorizing method that dusts, as shown in Fig. 2 the embodiment of the present invention additionally provide one kind dust deodorization dressPut, including air-introduced machine 12, deduster 10, deodorization tank and the dusting device being sequentially connected, wherein deodorization tank includes tank body 2, setAir outlet 1 and the air inlet 4 for being arranged at the lower sides of tank body 2 in the top of tank body 2, tank body 2 is to be used for foul smell and deodorization powderThe container of hybrid reaction and its bottom is set to back taper physique structure, air outlet 1 is connected with the air inlet of deduster 10, will be throughThe waste gas crossed after processing imports next treatment process and carries out dust removal process；Dusting device is by the duster 7, the discharge tube that are sequentially connected9 and the dust nozzle 3 with some mouths that dust constitute, dust nozzle 3 is installed in the internal upper part position of tank body 2, dust nozzle 3 by it is some mutuallyThe pipeline composition of coiling, discharge tube 9 connects and even some mouths that dust is opened up in the lower surface of pipeline respectively for one end of pipeline, passes throughDuster 7 sprays deodorization powder through discharge tube 9 from the mouth that dusts on dust nozzle 3, deodorant powder physical efficiency is evenly distributed in tankIt is sufficiently mixed in body 2 with foul smell；Duster 7 provides enough power for deodorization powder, enables deodorant powder body in the He of discharge tube 9Flow and enter in tank body 2 in dust nozzle 3.In deodorization tank, by air-introduced machine 12, untreated foul smell is introduced in tank body 2,The foul smell from bottom to top introduced is mixed with the deodorization powder sprayed from top to bottom from dust nozzle 3, and the gas after deodorization passes throughAir outlet 1 enters deduster 10 and carries out dust removal process.
As an optimal technical scheme of the present embodiment, the odor removal that dusts also includes being arranged at the bottom of tank body 2The powder settled in cylinder is transported to hopper by rotary discharge valve 5, rotary discharge valve 5, and ensures the air-tightness of cylinder；Rotary unloadingMaterial valve 5 is connected with the feed hopper 8 of duster 7, and deodorization powder can be recycled.
As one of the present embodiment more preferred technical scheme, as shown in Fig. 2 dust nozzle 3 is two, and it is upper and lowerThe upper position in tank body 2 is installed in, is set using multistage dust nozzle, deodorization powder is mixed with foul smell more abundant, significantlyThe clean-up effect of foul smell is improved, environment is protected.In actual applications, dust nozzle 3 can be that discharge tube 9 is located in tank body 2A part, and offer on the discharge tube 9 of the part some mouths that dust, and the shape of the discharge tube 9 of the part can beLinear, Curved or can for annular disk around shape.
As one of the present embodiment more preferred technical scheme, as shown in Fig. 2 deduster 10 is sack cleaner,And its bottom is provided with the collection ash bucket 11 for storing powder after deduster 10 is filtered.By sack cleaner filtering through deodorant powderThe powder remained after body processing in gas, and the powder under filtering is collected in collection ash bucket 11, interior carry out recycle and reuse.
As one of the present embodiment more preferred technical scheme, as shown in Fig. 2 being set at the air outlet of air-introduced machine 12There is aiutage 13, it is that deduster 10 and deodorization tank provide system negative pressure that the effect of air-introduced machine 12, which is, makes untreated foul smell or warpThe foul smell of processing is flowed in equipment and pipeline, and the gas after processing is transported between specified altitude assignment eventually through aiutage 13It is discharged into air or concentrates reprocessing.
As one of the present embodiment more preferred technical scheme, as shown in Fig. 2 the bottom of tank body 2 is provided with for branchSupport the supporting leg 6 of tank body 2.And by air inlet 4 by the way of horizontal air intake so that foul smell horizontally enters into tank body 2 from air inlet 4It is interior, then flowed up in the presence of air-introduced machine 12, pass through the air outlet 1 at the top of tank body 2 after deodorization powder mixing deodorizationDust removal process is carried out into deduster 10.
The dust workflow of odor removal of the present invention is：When under suction function of the foul gas in system air-introduced machine 10 fromInside the suction tank body 2 of air inlet 4 of the bottom of tank body 2, the deodorization powder sprayed into duster 7 through discharge tube 9, dust nozzle 3 is mixed,Deodorization powder occurs physically or chemically to react with the harmful substance in foul smell, and the odorant for adsorbing, neutralizing in waste gas reaches and removedSmelly purpose, to make foul gas and deodorant powder physical efficiency have enough mixing times of contact, the void tower wind speed of usual tank body takes 0.5-1.0m/s；Deodorization powder is deposited in tank body 2 in the ash bucket of tank bottom back taper physique structure, and spray is transported to by rotary discharge valve 5The feed hopper 8 of powder device 7, can be recycled powder.Gas after deodorizing process is subsequently entered in sack cleaner 10, is passed throughFilter bag, remaining deodorization powder in gas is filtered, most the aiutage 13 through fan outlet is discharged the clean gas after filtering afterwards；Deodorization powder under filtering is concentrated in ash bucket 11, and the deodorization powder after collection can be added in the feed hopper 8 on dusting deviceIt is continuing with.
The specific embodiment of the present invention is described in detail above, but it is intended only as example, and the present invention is not limitedIt is formed on particular embodiments described above.To those skilled in the art, it is any to the equivalent modifications that carry out of the present invention andSubstitute also all among scope of the invention.Therefore, the impartial conversion made without departing from the spirit and scope of the invention andModification, all should be contained within the scope of the invention.