CN208471858U - A kind of exhaust gas processing device for manure fermentation system - Google Patents

Abstract

The utility model discloses a kind of exhaust gas processing devices for manure fermentation system, belong to Zymolysis Equipment technical field.The device includes evacuated tube, the moisture trap on upper cover plate, plate-type dedusting device and cyclone dust collectors and air-introduced machine, UV photodissociation catalytic oxidizer and spray column on ground, offgas outlet, moisture trap, plate-type dedusting device, cyclone dust collectors, air-introduced machine, UV photodissociation catalytic oxidizer, spray column and evacuated tube are sequentially connected by pipeline, are equipped with plate valve on the dust outlet of plate-type dedusting device and the dust outlet of cyclone dust collectors and are connected to fermentor.The device is respectively handled moisture, dust and malodor molecules, and without dust and peculiar smell, the tail gas of discharge meets environmental protection standard at scene；Meanwhile by the way that moisture trap, plate-type dedusting device and cyclone dust collectors are directly arranged on fermentor, the volume of fermentation system is not only reduced, also isolated dust is recycled.

Description

A kind of exhaust gas processing device for manure fermentation system

Technical field

The utility model belongs to Zymolysis Equipment technical field, in particular to a kind of vent gas treatment for manure fermentation system Device.

Background technique

With the economic increasingly promotion advanced by leaps and bounds with people's quality of the life, everybody need to animal sex aids and food Asking persistently to increase, and animal sex aids and food occupy increasingly consequence in people's lives.Related research table It is bright, in recent years, the characteristics of unprecedented development and expansion occurs in the world in aquaculture, these develop is mainly to be rule Modelling, intensive management.China is one of big country of livestock and poultry cultivation at present, in recent years, not with livestock and poultry farms in scale Disconnected to grow, feces of livestock and poultry arbitrarily discharges the emphasis source that caused pollution has become environmental pollution.

It data show, when 2003, the discharge amount of China's feces of livestock and poultry is about 3,200,000,000 tons, far beyond 1,000,000,000 tons of the total release of annual trade waste, by 2011, the total release of China's animal faeces wastes will be more than 4,600,000,000 tons, aquaculture pollution has become one of China's major source of pollutant.

Excessive fowl and animal excrement excreta is unprocessed and is directly discharged in the middle of environment, not only will cause strong to the mankind The harm of health and ecological environment can also have an impact the sustainable development of animal husbandry, thus fowl and animal excrement pollution prevention and Improvement has become extremely urgent thing.Fowl and animal excrement is showed themselves in that the harm of environment

(1) pollution of water quality.

(2) pollution of air.During banking up and storing, since water content is larger in feces of livestock and poultry, it can generate very much Foul gas (including ammonia, sulfide and methane etc.) pollutes air and has an impact to ambient air quality.All manure of livestock and poultry Just the foul gas of middle milk cow is maximum, and there are stringent relevant criterion and regulation in many countries to discharge foul gas, in Japan " stench method " in just have relevant regulation, wherein determine 8 kinds of odorant dairies just account for as many as 6 kinds, be three respectively Methylamine, methyl mercaptan, dimethyl sulfide, hydrogen sulfide, ammonia and curing methyl are added to 4 kinds of lower fatty acids (including third later and newly Acid, n-butyric acie, positive valeric acid and isovaleric acid).These substances poison the respiratory center of people, stimulate nervous system, finally make one pathogenic, Also have an impact to the growth and development of poultry, while poultry reproduction ability can also declined.

(3) pollution of heavy metal.Minor metallic element additive (such as iron, copper, zinc and arsenic) is added in animal and fowl fodder, only There are these a small amount of microelements that can directly be digested absorption, it is most of to be all expelled directly out in vitro with excrement.Someone calculates one If the growth stimulator for the continuous 15 years organo-arsenics used above in broiler chicken field that a raising ability is 100,000 or so, neighbouring periphery The content of Soils In The Region arsenic will increase as many as one times.

(4) pollution of sex pheromone.Many pathogenic microorganisms, helminth and worm's ovum are present in untreated poultry In excrement, the mosquitos and flies multiplied causes the sprawling of helminth, infectious disease.

(5) fowl and animal excrement arbitrarily discharges, and not only pollutes environment, and dead mortality increases year after year, also threatens animal husbandry certainly Lasting, the healthy development of body.

(6) social stability is influenced.Untreated fowl and animal excrement is directly discharged in environment, to surrounding waters and Farmland pollution is serious, conflicts constantly with the resident of surrounding and peasant household.

It is in the prior art usually fermented animal wastes to obtain organic fertilizer raw material by fermentor, and solved smelly Taste, bacterium and it is not easy the problems such as transporting.The fermentor with stirring is generallyd use to realize in fermentation process, is needed in fermentor Stirring and logical oxygen, fermentation process temperature rise to 60-70 DEG C (even up to 80 DEG C).Double action of the excrement in high temperature and strain Under, quick composting is at organic fertilizer powder (moisture content is down to 30-40% by 60-70%).Usually tail gas is equipped on fermentor top Outlet, the tail gas generated in fermentation process is discharged, but the exhaust gas component that fermentation process generates is complicated, not only its moisture content It is higher, and contain a large amount of dust, while tail gas has compared with pungent smell (such as ammonia, hydrogen sulfide and other organic malodor molecules Or deleterious molecular), if direct emission, farm's environment (fermentation system is usually provided in or around farm) not only is influenced, Reduce the job enthusiasm of poultry feeders, it is also possible to influence the growth and development of livestock and poultry；It will also result in environmental pollution simultaneously.

Summary of the invention

To solve the above-mentioned problems, the utility model embodiment provides a kind of vent gas treatment for manure fermentation system Device, the device are respectively handled moisture, dust and malodor molecules etc., and scene is accorded with without dust and peculiar smell, the tail gas of discharge Close environmental protection standard；Meanwhile by the way that moisture trap, plate-type dedusting device and cyclone dust collectors are directly arranged on fermentor, not only The volume of fermentation system is reduced, also isolated dust is recycled.The technical solution is as follows:

The utility model embodiment provides a kind of exhaust gas processing device for manure fermentation system, manure fermentation system The air blower 2 of oxygen is provided including fermentor 1 and for fermentor 1, the upper cover plate 3 of the fermentor 1 is equipped with offgas outlet；This Embodiment provide exhaust gas processing device include evacuated tube 4, the moisture trap 5 on upper cover plate 3, plate-type dedusting device 6 with Cyclone dust collectors 7 and air-introduced machine 9, UV photodissociation catalytic oxidizer 10 and spray column 11 on ground 8, the offgas outlet, Moisture trap 5, plate-type dedusting device 6, cyclone dust collectors 7, air-introduced machine 9, UV photodissociation catalytic oxidizer 10, spray column 11 and emptying Pipe 4 is sequentially connected by pipeline, is equipped on the dust outlet of the plate-type dedusting device 6 and the dust outlet of cyclone dust collectors 7 It plate valve and is connected to fermentor 1.

Wherein, the dust outlet of the dust outlet of the plate-type dedusting device 6 in the utility model embodiment and cyclone dust collectors 7 On be equipped with surge bunker for storing dust, the surge bunker be connected to fermentor 1 and between be equipped with plate valve.

Preferably, exhaust gas processing device provided by the embodiment of the utility model further includes being set to cyclone dust collectors 7 and air inducing Heat exchanger 12 between machine 9, the heat exchanger 12 are connected to by triple valve with air blower 2, and remaining one, the triple valve logical Road is communicated with the atmosphere.

Specifically, spray column 11 provided by the embodiment of the utility model includes tower body, the demister at the top of tower body, on tower body The spray head in portion and the circulating slot of tower body bottom, the circulating slot and spray head are connected by the circulation line with circulating pump.

Preferably, exhaust gas processing device provided by the embodiment of the utility model further includes wastewater collection tank, and the waste water is received Collection tank is connect by pipeline with circulating slot.

Wherein, evacuated tube 4 provided by the embodiment of the utility model is connected to set on the top of tower body with tower body along the vertical direction, Its height is greater than 6m.

Technical solution provided by the embodiment of the utility model has the benefit that the utility model embodiment provides A kind of exhaust gas processing device for manure fermentation system, the device are respectively handled moisture, dust and malodor molecules, existing Without dust and peculiar smell, the tail gas of discharge meets environmental protection standard for field；Meanwhile by by moisture trap, plate-type dedusting device and whirlwind Deduster is directly arranged on fermentor, is not only reduced the volume of fermentation system, is also recycled to isolated dust.Separately Outside, also in tail gas heat and spray liquid utilize.

Detailed description of the invention

Fig. 1 is the functional block diagram of the exhaust gas processing device provided by the embodiment of the utility model for manure fermentation system；

Fig. 2 is the structural representation of the exhaust gas processing device provided by the embodiment of the utility model for manure fermentation system Figure；

Fig. 3 is the top view of the exhaust gas processing device provided by the embodiment of the utility model for manure fermentation system.

In figure: 1 fermentor, 2 air blowers, 3 upper cover plates, 4 evacuated tubes, 5 moisture traps, 6 plate-type dedusting devices, 7 whirlwind remove Dirt device, 8 ground, 9 air-introduced machines, 10 UV photodissociation catalytic oxidizers, 11 spray columns, 12 heat exchangers.

Specific embodiment

It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer Type is described in further detail.

Referring to Fig. 1-3, the utility model embodiment provides a kind of exhaust gas processing device for manure fermentation system, excrement Just fermentation system includes fermentor 1 and provides the air blower 2 of oxygen for fermentor 1, and fermentor 1 is sealed pot type structure, in Equipped with stirring, top and bottom is respectively equipped with upper cover plate 3 and lower cover plate, and the upper cover plate 3 of fermentor 1 is equipped with offgas outlet. Exhaust gas processing device provided in this embodiment includes evacuated tube 4, the moisture trap 5 on upper cover plate 3, plate-type dedusting device 6 Air-introduced machine 9, UV photodissociation catalytic oxidizer 10 and spray column 11 with cyclone dust collectors 7 and on ground 8 etc., moisture trap 5 for carrying out gas-water separation (isolated moisture returns to fermentor 1 or is sent into wastewater collection tank), specially shutter to tail gas Formula moisture trap；Plate-type dedusting device 6 is specifically as follows electrical board-like deduster for removing dust.Cyclone dust collectors 7 are used Make in gas in further removing dust substantially without dust；UV photodissociation catalytic oxidizer 10 is used to remove stink, is specially Duct type structure, the both ends of pipeline are respectively import and outlet, are successively arranged strainer, C-band ultraviolet lamp by import to outlet With the catalytic plate etc. for being coated with nano-titanium dioxide.The organic matters such as odorous gas under the catalytic action of titanium dioxide with ozone into Row reaction；Spray column 11 is water spray structure, and the gas after being processed is dustless, tasteless, nontoxic to be discharged.Fermentor 1 Offgas outlet, moisture trap 5, plate-type dedusting device 6, cyclone dust collectors 7, air-introduced machine 9, UV photodissociation catalytic oxidizer 10, spray Leaching tower 11 and evacuated tube 4 are sequentially connected by pipeline.By moisture trap 5, plate-type dedusting device 6 and cyclone dust collectors in this patent 7 are directly arranged on fermentor 1, not only can be reduced land occupation, and the dust that can also be achieved separation returns to the not outlet of fermentor 1, then board-like Plate valve is equipped on the dust outlet of deduster 6 and the dust outlet of cyclone dust collectors 7 (when isolated dust runs up to a fixed number After amount open enter fermentor 1, other states close) and with fermentor 1(upper cover plate 3) be connected to.

Wherein, the dust outlet of the dust outlet of the plate-type dedusting device 6 in the utility model embodiment and cyclone dust collectors 7 On be equipped with surge bunker for storing dust, surge bunker and fermentor 1(upper cover plate 3) be connected to and between be equipped with plate valve.

Preferably, referring to Fig. 1-3, exhaust gas processing device provided by the embodiment of the utility model further includes being set to cyclone dust removal Heat exchanger 12 between device 7 and air-introduced machine 9 is used to recycle the heat in tail gas as fermentation oxygen supply heating, and heat exchanger 12 passes through threeway Valve is connected to air blower 2, and the remaining channel of triple valve is communicated with the atmosphere for sucking air.Specifically, heat exchanger 12 can Think that tubular heat exchanger, tube side are connected to air-introduced machine and cyclone dust collectors, shell side is connected to atmosphere and triple valve.Normal condition Lower heat exchanger 12 does not work, and triple valve gates the channel that is communicated with the atmosphere, and selects in winter or under the fermentation temperature situations such as not enough Lead to the air heating that another outlet is air blower sucking.Certainly, it can also be used and be arranged on the pipeline of cyclone dust collectors output Two outlets of triple valve, triple valve divide two-way output directly to connect with air-introduced machine and connect respectively by heat exchanger and air-introduced machine It connects, heat exchanger is connected by the air inlet of pipeline and air blower.

Specifically, spray column 11 provided by the embodiment of the utility model (specifically may be used including the demister at the top of tower body, tower body Think wire mesh demister), the spray head on tower body top and the circulating slot of tower body bottom etc., circulating slot is located at the top of spray head for connecing Spray liquid, circulating slot and spray head is received to connect by the circulation line with circulating pump to realize circulated sprinkling.Preferably, on tower body Settable visual window, access hole as needed etc..

Preferably, referring to Fig. 1, exhaust gas processing device provided by the embodiment of the utility model further includes wastewater collection tank, is given up Water collecting tank is connect by pipeline with circulating slot.When the spray liquid concentration of circulating slot reaches certain value be sent into wastewater collection tank into Row saves as Liquid Fertilizer (mainly containing ammonia).

Wherein, referring to fig. 2 with 3, evacuated tube 4 provided by the embodiment of the utility model is set to the top of tower body along the vertical direction It is connected to tower body, height is greater than 6m.

Pump, valve and/or flowmeter etc. are set as needed on pipeline in the present embodiment between each structure.

The utility model embodiment provides a kind of exhaust gas processing device for manure fermentation system, and the device is right respectively Moisture, dust and malodor molecules are handled, and without dust and peculiar smell, the tail gas of discharge meets environmental protection standard at scene；Meanwhile passing through Moisture trap, plate-type dedusting device and cyclone dust collectors are directly arranged on fermentor, the volume of fermentation system is not only reduced, Also isolated dust is recycled.Meanwhile also in tail gas heat and spray liquid utilize.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (6)

1. a kind of exhaust gas processing device for manure fermentation system, manure fermentation system includes fermentor (1) and is fermentor (1) air blower (2) of oxygen is provided, the upper cover plate (3) of the fermentor (1) is equipped with offgas outlet；It is characterized in that, described Exhaust gas processing device includes evacuated tube (4), moisture trap (5), plate-type dedusting device (6) and whirlwind on upper cover plate (3) Deduster (7) and the air-introduced machine (9) being set on ground (8), UV photodissociation catalytic oxidizer (10) and spray column (11), the tail gas Outlet, moisture trap (5), plate-type dedusting device (6), cyclone dust collectors (7), air-introduced machine (9), UV photodissociation catalytic oxidizer (10), spray column (11) and evacuated tube (4) are sequentially connected by pipeline, the dust outlet and whirlwind of the plate-type dedusting device (6) It is equipped with plate valve on the dust outlet of deduster (7) and is connected to fermentor (1).

2. the exhaust gas processing device according to claim 1 for manure fermentation system, which is characterized in that described board-like to remove The surge bunker for storing dust is equipped on the dust outlet of dirt device (6) and the dust outlet of cyclone dust collectors (7), it is described slow Rush storehouse be connected to fermentor (1) and between be equipped with plate valve.

3. the exhaust gas processing device according to claim 1 for manure fermentation system, which is characterized in that described device is also Including the heat exchanger (12) being set between cyclone dust collectors (7) and air-introduced machine (9), the heat exchanger (12) passes through triple valve and drum Blower (2) connection, the remaining channel of triple valve is communicated with the atmosphere.

4. the exhaust gas processing device according to claim 1 for manure fermentation system, which is characterized in that the spray column It (11) include tower body, demister, the spray head on tower body top and the circulating slot of tower body bottom at the top of tower body, the circulating slot and spray Head is connected by the circulation line with circulating pump.

5. the exhaust gas processing device according to claim 4 for manure fermentation system, which is characterized in that described device is also Including wastewater collection tank, the wastewater collection tank is connect by pipeline with circulating slot.

6. the exhaust gas processing device according to claim 4 for manure fermentation system, which is characterized in that the evacuated tube (4) it is connected to along the vertical direction set on the top of tower body with tower body, height is greater than 6m.