A kind of environmental protection fermentation tower with tail gas purifying function
Technical field
The invention belongs to organic fertilizer fermentation apparatus field, be specifically related to a kind of environmental protection fermentation tower with tail gas purifying function.
Technical background
In organic fertilizer production process, often need to carry out dynamic aerobic fermentation to organic raw material.In several zymotechniques such as slot type, bar buttress formula, because floor space is little, can realize higher mechanical automation operation, to be also people to ferment the one often selected in organic fertilizer production tower zymotechnique simultaneously.But in use, it is found that it also deposits both ways significantly shortcomings and deficiencies, be difficult to adapt to actual needs: one is the purification function lacking fermentation tail gas, and the band dust come out in tower body in its working process and the fermentation tail gas of stink can cause comparatively serious secondary pollution to surrounding enviroment; Two is that tower body inner air flow is not smooth, and organism of fermentation oxidation undersupply, active not high enough, fermentation state is good not, and the water vapor be simultaneously evaporated in material can not be discharged in time, the excessive cycle of organic materials fermentation maturity and mummification.
Therefore, give full play to the advantages such as tower fermentation floor space is little, it is made to be widely used in the fermentative production of organic fertilizer, need and can carry out the more unobstructed environmental protection fermentation tower of dedusting, deodorizing purifying treatment and tower body inner air flow to fermentation tail gas, but not yet find that there is the equipment reaching above-mentioned requirements at present.
Summary of the invention
The object of the invention is to solve the shortcomings and deficiencies that existing fermentation tower exists in organic materials fermentative production, provide one can realize fermentation tail gas purification, meet environmental requirement, the organic fertilizer fermentation tower that fermentation efficiency is higher.
The object of the invention is to be achieved through the following technical solutions:
A kind of environmental protection fermentation tower with tail gas purifying function of the present invention, comprise tower body, fermentation bed, fermentation bed be at least provided with two-layer more than, be arranged on from top to bottom in tower body, tower body is provided with opening for feed and discharge port, tower body is also provided with the exhaust gas cleaner that fermentation tail gas can be carried out purifying treatment, environment protection emission up to standard, the working space of exhaust gas cleaner is connected with tower body internal space, the entrance end of exhaust gas cleaner or exit end connecting fan.
The present invention has the environmental protection fermentation tower of tail gas purifying function, and described exhaust gas cleaner is arranged on the top of tower body.
The present invention has the environmental protection fermentation tower of tail gas purifying function, and described exhaust gas cleaner to be combined with deodorizer by deodorizer or fly-ash separator and forms.
The present invention has the environmental protection fermentation tower of tail gas purifying function, and described fly-ash separator is communicated with tower body top, and deodorizer is arranged on the exit end of fly-ash separator, and assembling is at the exit end of deodorizer.
The present invention has the environmental protection fermentation tower of tail gas purifying function, and described fly-ash separator is cloth bag pulsaire collector or cyclone dust collector, and deodorizer is photodissociation oxidation style deodorizing device.
The present invention has the environmental protection fermentation tower of tail gas purifying function, and described tower body is circular or square, and bottom surrounding offers the inlet mouth communicated with space outerpace.
The present invention has the environmental protection fermentation tower of tail gas purifying function, and described opening for feed and discharge port are separately installed with the keying valve preventing from leaking gas.
By above-mentioned innovative solution, the invention has the beneficial effects as follows:
Adopt the technical program, after fermentation tower body installs exhaust gas cleaner and blower fan, centralized collection can be carried out to the fermentation tail gas that fermentation tower is carrying out band dust and the stink come out in tower body in fermentation operation process, in exhaust gas cleaner, successively complete qualified discharge after dedusting and deodorizing process, effectively prevent the generation of secondary environmental pollution; Simultaneously, exhaust gas cleaner and blower fan are in the course of the work, achieve that fresh air enters from tower body bottom inlet mouth, fermentation tail gas by the forced ventilation of extracting out from top of tower, tower body inner air flow is smooth and easy, and organism of fermentation oxidation supply is sufficient, active high, fermentation state is good, and the water vapor be evaporated in material is discharged in time, significantly reduces atmospheric moisture in tower body, the cycle of organic materials fermentation maturity and mummification obviously shortens, and fermentation efficiency improves more than 30%.
Accompanying drawing explanation
Fig. 1 is the structural representation of present pre-ferred embodiments.
Accompanying drawing mark is described as follows: tower body 1, fermentation bed 2, exhaust gas cleaner 3, fly-ash separator 4, deodorizer 5, blower fan 6, feeding conveyor 7, outfeed belt conveyor 8, inlet mouth 9, opening for feed open and close valve 10, discharge port opens and closes valve 11.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, the tower body 1 of fermentation tower of the present invention is circular tower body, and also can be square tower body, fermentation bed 2 layering be installed in tower body 1 successively, and fermentation bed 2 has 8 layers, and during fermentation tower work, organic materials ferments in fermentation bed 2.Exhaust gas cleaner 3 is arranged on the top of tower body 1, the fermentation tail gas in collected overhead tower body 1; Exhaust gas cleaner 3 is combined by fly-ash separator 4 and deodorizer 5, also can be adopt deodorizer separately; Fly-ash separator 4 is fixedly mounted on the top of tower body 1, and its working space is connected with tower body 1 internal space by the opening at tower body 1 top, and deodorizer 5 is arranged on the exit end of fly-ash separator 4, and blower fan 6 is arranged on the exit end of deodorizer 5.Fly-ash separator 4 can select cloth bag pulsaire collector or cyclone dust collector, the powder method in fermentation tail gas can be filtered by cloth bag pulse method, and to be got back to by the dust discharge of filtration in the fermentation materials in the fermentation bed 2 of most top layer by its deashing mechanism; Deodorizer 5 can select photodissociation oxidation style deodorizing device, adopts photodissociation oxidation technology that the foul smell molecular breakdown in the fermentation tail gas of fly-ash separator 4 dust removal by filtration is oxidized to harmless carbon dioxide and water molecules; Blower fan 6 is centrifugal blower or aerofoil fan, by its suction function, realizes the forced ventilating of fermentation tower tower body 1 inside.Ozone can be obtained equably to make the fermented organic material in the every one deck fermentation bed 2 in fermentation tower tower body 1, also forced ventilation in tower body 1 is reached, in tower body 1 lower circumference, the below of one deck fermentation bed of the most end 2 evenly offers several inlet mouths 9 communicated with space outerpace, ensure that fresh air enters bottom fermentation tower, fermentation tail gas is discharged after being collected purifying treatment from the top of tower body 1.
In order to realize the automatic feed/discharge of fermentation tower, be provided with feeding conveyor 7 and outfeed belt conveyor 8 outside tower body, the exit end of feeding conveyor 7 connects with the opening for feed on tower body top, and the entrance end of outfeed belt conveyor 8 connects with the discharge port of tower body bottom.Fresh organic materials is risen to the top of fermentation tower by feeding conveyor 7 from low level, be routed in the fermentation bed 2 being positioned at most top layer through opening for feed, feeding conveyor 7 is high spud angle rib rotary conveyors, also can be worm conveyor; Bottom fermentation tower, an outfeed belt conveyor 8 is installed, will the organic materials of fermentation be completed from tower body 1 delivered inside out; Described outfeed belt conveyor 8 is rib rotary conveyors, also can be worm conveyor.
In order to avoid undressed fermentation tail gas comes out through opening for feed and discharge port, improve the collection effciency of fermentation tail gas simultaneously, be separately installed with at the opening for feed at tower body 1 top and the discharge port of bottom the opening for feed preventing from leaking gas and open and close valve 10 and discharge port keying valve 11; Described opening for feed opens and closes valve 10 and discharge port keying valve 11 is automatic open and close, also can be artificial before and after input and output material opening and closing.
Main operational principle and the working process of the embodiment of the present invention are as follows: fermentation tower is in startup optimization state, open the exhaust gas cleaner 3 and the blower fan 6 that are positioned at fermentation tower tower body 1 top, ozone is sucked in tower body 1 from the inlet mouth 9 bottom tower body 1, the band dust come out in organic materials fermenting process and the fermentation tail gas of stink upwards flow, enter in the fly-ash separator 4 of exhaust gas cleaner 3, dust wherein is first stopped in the organic materials filtering and put back to side by side in the fermentation bed 2 being in tower body 1 most top layer by the cloth bag of fly-ash separator 4, non-dusting fermentation tail gas enters in deodorizer 5, emitted by the airduct through blower fan 6 after photodissociation oxidation removal stink wherein, the environmental protection realizing fermenting process is produced.