58results about How to "Prevent encrustation" patented technology

The invention relates to a method for the anaerobic fermentation of bloom-forming cyanobacteria, and belongs to the technical field of the agricultural environmental protection. The method comprises the following steps: pumping the bloom-forming cyanobacteria to a zigzag type acidification pool; and pumping the bloom-forming cyanobacteria after being subjected to acidification treatment to an agitating type anaerobic digestion tank after being improved, so as to generate marsh gas after the anaerobic fermentation. Through combining the promotion or unload or transportation process of the bloom-forming cyanobacteria with deswelling treatment, the investment of a deswelling dedicated device is reduced; the cost is reduced; the effective volume of the subsequent anaerobic digestion tank is improved through the mechanical action of a pump and the extension of the acidification time of the cyanobacteria; and the retention time of the bloom-forming cyanobacteria in the anaerobic digestion tank is shortened; through adding an agitator at the upper part of the digestion tank, the bloom-forming cyanobacteria and sludge at the bottom are fully in contact mixture, thereby increasing the gas production rate of the volume and the organic load, and improving the running efficiency of engineering.

The invention discloses a bend type pneumatic extrusion biogas fluid stirred flow super efficient methane generation system. The bend type pneumatic extrusion biogas fluid stirred flow super efficient methane generation system comprises a feed pipe, a discharge pipe and a U-shaped fermentation pipeline, the U-shaped fermentation pipeline is horizontally placed, the feed pipe and the discharge pipe are vertically connected with two end sides of the U-shaped fermentation pipeline, a hydraulic pressure room is located at the upper part of the U-shaped fermentation pipeline, the connection part between the hydraulic pressure room and the feed pipe is the feed pipe drain hole, the connection part between the hydraulic pressure room and the discharge pipe is the discharge pipe drain hole, the connection part between the U-shaped fermentation pipeline and the feed pipe is provided with a feed pipe gas baffle plate, the connection part between the U-shaped fermentation pipeline and the discharge pipe is provided with a discharge pipe gas baffle plate, at least one gas baffle plate is formed between the discharge pipe gas baffle plate and the feed pipe gas baffle plate, a fermentation region is formed between the feed pipe / discharge pipe and the adjacent gas baffle plate or between the adjacent gas baffle plates, an independent gas collecting pipe is arranged at the top of each fermentation region; the top of each fermentation region is connected with the independent gas collecting pipe and the independent gas collecting pipe is provided with a valve body; the fermentation line is long by adopting the U-shaped channel-type fermentation device, the biogas fluid can flow in the system for driving the bacteria to be evenly distributed through the control of the water pressure difference and the one-way valve, the crusting phenomenon can be effectively prevented and the gas yield is high.

A device for improving the turbulence effect of biogas slurry in a curved methane generation system, which includes: feed pipe, discharge pipe, U-shaped fermentation pipe, the U-shaped fermentation pipe is placed horizontally, and the feed pipe and discharge pipe are vertically connected to the U-shaped fermentation pipe. On both ends of the pipeline, a water pressure room is placed on the upper part of the U-shaped fermentation pipeline. A feed pipe air baffle is set at the connection position between the pipeline and the feed pipe, a discharge pipe air baffle is set at the connection position between the U-shaped fermentation pipeline and the discharge pipe, the discharge pipe air baffle and the feed pipe air baffle There is also at least one air baffle between them, and a fermentation area is formed between the inlet / outlet pipe and the adjacent air baffle or between the adjacent air baffles, and the top of each fermentation area is provided with an independent collector Trachea; the top of each fermentation area is connected to an independent gas collection pipe, and the gas collection pipe is equipped with a valve body; the U-shaped channel fermentation device is adopted, the fermentation route is long, and the biogas slurry is realized by using the control of water pressure difference and one-way valve It flows fully in the system and drives the uniform distribution of bacteria, effectively preventing crusting and high gas production rate.

The invention discloses a pan-long type biogas fermentation system for spreading bacteria in several partitions, which includes: a feed pipe, a discharge pipe, and a U-shaped fermentation pipe. The U-shaped fermentation pipe is placed horizontally, and the feed pipe and the discharge pipe are vertically connected by U. At both ends of the U-shaped fermentation pipeline, a water pressure room is placed on the upper part of the U-shaped fermentation pipeline. A feed pipe air baffle is set at the connection position between the U-shaped fermentation pipeline and the feed pipe, a discharge pipe air baffle is set at the connection position between the U-shaped fermentation pipeline and the discharge pipe, the discharge pipe air baffle and the feed pipe baffle At least one air baffle is also arranged between the air plates, and a fermentation area is formed between the inlet / outlet pipe and the adjacent air baffles or between adjacent air baffles, and the top of each fermentation area is provided with an independent The gas collection pipe; the top of each fermentation area is connected to an independent gas collection pipe, and a valve body is arranged on the gas collection pipe.

The invention discloses an ultra-high-efficiency biogas generating device that air pressure promotes biogas slurry circulation, which includes a feed pipe, a discharge pipe, and a U-shaped fermentation pipe. The U-shaped fermentation pipe is placed horizontally, and the feed pipe and the discharge pipe are connected vertically. At both ends of the U-shaped fermentation pipeline, a water pressure room is placed on the upper part of the U-shaped fermentation pipeline. The connection between the water pressure room and the feed pipe is the drain hole of the feed pipe, and the connection between the water pressure room and the discharge pipe is the discharge hole of the discharge pipe. A feed pipe air baffle is set at the connection position between the U-shaped fermentation pipeline and the feed pipe, and a discharge pipe air baffle is set at the connection position between the U-shaped fermentation pipeline and the discharge pipe; the U-shaped fermentation pipeline is provided with a gas collecting pipe. The drain hole of the feed pipe is provided with a one-way valve to control the one-way flow of the biogas slurry in the water pressure chamber into the feed pipe. The fermentation route is long, using the control of water pressure difference and one-way valve to realize the full flow of biogas slurry in the system, and to drive the uniform distribution of bacteria, effectively prevent crusting, high gas production rate, suitable for large-scale production.

The invention discloses a method for producing biogas by use of a biogas generation system with a bacterium distributor for promoting even distribution of bacteria. The method comprises the following steps that: fermentation raw materials are poured into a U-shaped fermentation pipeline via a feed pipe and fermented to produce biogas, the biogas is gathered in the space between a feed pipe gas baffle plate and a discharge pipe gas baffle plate in the U-shaped fermentation pipeline so as to occupy the space in the fermentation pipeline and push the biogas slurry in the fermentation pipeline to flow into the feed pipe, the discharge pipe and the bacterium distributor and further flow into a water pressure chamber unidirectionally via a discharge pipe drain hole and flow into the water pressure chamber via the drain pipe of the bacterium distributor; and when the biogas stored in the fermentation pipeline is output to the outside via a gas collecting pipe, the pressure of the biogas in the fermentation pipeline drops and the biogas stored in the water pressure chamber unidirectionally flows into the fermentation pipeline via the feed pipe drain hole and returns to the fermentation pipeline via the drain pipe of the bacterium distributor, and therefore, circular flow of the biogas slurry is completed.

The invention discloses a hydraulic double-pipe channel type biogas generating device, which includes a feed pipe, a discharge pipe, and a U-shaped fermentation pipe. The U-shaped fermentation pipe is placed horizontally, and the feed pipe and the discharge pipe are vertically connected to the U-shaped fermentation pipe. At both ends of the pipeline, a water pressure room is placed on the upper part of the U-shaped fermentation pipeline. A feed pipe air baffle is set at the connection position between the pipeline and the feed pipe, and a discharge pipe air baffle is set at the connection position between the U-shaped fermentation pipeline and the discharge pipe; The position of the drainage hole is provided with a one-way valve to control the one-way flow of the biogas slurry in the fermentation pipeline into the water pressure room, and the one-way valve is set on the drain hole of the feed pipe to control the one-way flow of the biogas slurry in the water pressure room into the feed pipe; The channel-type fermentation device has a long fermentation route, and uses the control of water pressure difference and one-way valve to realize the full flow of biogas slurry in the system, and to drive the uniform distribution of bacteria, effectively preventing crusting, high gas production rate, suitable for Large-scale production.

The invention discloses a method for generating methane in a methane generation device with a bent super-long fermentation path. The method includes the steps: pouring fermentation raw materials from a feeding pipe and fermenting the raw materials in a fermentation pipeline to generate the methane; using the methane stored in an optional fermentation area. The methane is respectively gathered in fermentation areas formed among the feeding / discharging pipe and adjacent gas baffle plates or between the adjacent gas baffle plates, occupies space in the fermentation areas, squeezes biogas slurry in convection and flows towards the feeding pipe, the discharging pipe and a bacteria distribution device, and the biogas slurry in the fermentation pipeline unidirectionally flows into a water pressure space through a drain hole of the discharging pipe and flows into the water pressure space through a drain pipe of the bacteria distribution device along with rise of the liquid level of the biogas slurry in the feeding pipe, the discharging pipe and the bacteria distribution device. The pressure of the methane stored in the optional fermentation area is reduced, the biogas slurry in an adjacent fermentation area flows towards the optional fermentation area, and the biogas slurry stored in the water pressure space unidirectionally flows back into the feeding pipe through a drain hole of the feeding pipe and flows back into the fermentation pipeline through the drain pipe of the bacteria distribution device to supplement reduced methane space, so that circulating flow of the biogas slurry is finished.

The invention discloses a biogas production method for a dragon type super-effective biogas fermentation system. The biogas production method for the dragon type super-effective biogas fermentation system includes steps that fermentation raw material is poured into a fermentation pipeline from a feed pipe, the fermentation raw material ferments in the fermentation pipeline to generate biogas, biogas is accumulated in fermentation zones formed between the feed / discharge pipe and adjacent gas baffle plate or between adjacent gas baffle plates, the biogas takes up the space in the fermentation zones and extrudes biogas slurry to generate convection and flow to the feed pipe and discharge pipe, and the biogas slurry in the fermentation pipeline inflows to a water pressure room in one direction through a water drain hole of the discharge pipe along with the rising of the biogas slurry surfaces in the feeding pipe and discharge pipe; the biogas in any one of the fermentation zones is used to reduce the biogas pressure in the fermentation zone, the biogas slurry in the adjacent fermentation zones flows to the fermentation zone, and the biogas slurry stored in the water pressure room returns to the fermentation pipeline in one direction through a water drain hole of the feed pipe to complement the reduced biogas space so as to finish circular biogas slurry flow.

The invention provides a U-shaped methane generation system with multiple fermentation regions. The U-shaped methane generation system comprises a feed pipe, a discharge pipe and a U-shaped fermentation pipeline, wherein the U-shaped fermentation pipeline is arranged horizontally; the feed pipe and the discharge pipe are vertically connected to the two end sides of the U-shaped fermentation pipeline; a water pressure chamber is arranged on the upper part of the U-shaped fermentation pipeline; a feed pipe drain hole is formed in the connection position of the water pressure chamber and the feed pipe, while a discharge pipe drain hole is formed in the connection position of the water pressure chamber and the discharge pipe; a feed pipe gas stop plate is arranged at the connection position of the U-shaped fermentation pipeline and the feed pipe, while a discharge pipe gas stop plate is arranged at the connection position of the U-shaped fermentation pipeline and the discharge pipe; at least one gas stop plate is further arranged between the feed pipe gas stop plate and the discharge pipe gas stop plate; a fermentation region is formed between the feed / discharge pipe and the adjacent gas stop plate or the adjacent gas stop plate; an independent gas collecting pipe is arranged at the top of each fermentation region; the top of each fermentation region is connected with the independent gas collecting pipe and a valve is arranged on the gas collecting pipe; a U-shaped channel-type fermentation device is adopted and the fermentation path is long; sufficient flowing of the biogas slurry in the system is realized by virtue of the water pressure difference and the control of a one-way valve; besides, bacteria are distributed evenly to effectively prevent crusting; the U-shaped methane generation system with multiple fermentation regions is high in gas generation rate and suitable for large-scale production.

The invention discloses a biogas fermentation device for promoting uniform distribution of strains through unidirectional biogas slurry flow. The biogas fermentation device comprises a feed pipe, a discharge pipe and a U-shaped fermentation pipeline, wherein a water pressure room is placed at the upper part of the U-shaped fermentation pipeline; the water pressure room is connected to a bacteria distribution device; the bacteria distribution device consists of a drain pipe, a U-shaped bacteria distribution pipe and bacteria distribution holes; the side, deviating from the feed pipe and the discharge pipe, of the water pressure room is connected to the drain pipe of the bacteria distribution device, and the other side of the drain pipe is connected to the U-shaped bacteria distribution pipe fixed in the fermentation pipeline; a one-way valve for controlling biogas slurry in the water pressure room to unidirectionally flow in the feed pipe is arranged on a feed pipe drainage hole, a one-way valve for controlling biogas slurry in the discharge pipe to unidirectionally flow in the water pressure room is arranged on a discharge pipe drain hole, and a one-way valve for controlling biogas slurry in the fermentation pipeline to unidirectionally flow in the water pressure room is arranged on the drain pipe of the bacteria distribution device; the horizontal plane where the lowest point of the drain hole of the discharge pipe is positioned, is lower than the horizontal plane where the lowest point of the drain pipe of the bacteria distribution device is positioned.

The invention discloses a method for generating biogas by a hydraulic double-pipe channel type biogas generating device. The steps include: pouring fermentation materials into a U-shaped fermentation pipeline through a feed pipe and fermenting to generate biogas, and the biogas is accumulated in the U-shaped fermentation pipeline. In the space between the feed pipe air baffle and the discharge pipe air baffle, biogas occupies the space in the fermentation pipe and squeezes the biogas slurry in the fermentation pipe to flow into the feed pipe and discharge pipe, and drain through the discharge pipe The hole flows into the water pressure room in one direction; when the biogas stored in the fermentation pipeline is output to the outside through the gas collecting pipe, the pressure of the biogas in the fermentation pipeline drops, and the biogas slurry stored in the water pressure room flows back into the fermentation pipeline through the drainage hole of the feed pipe , to complete the circulation of biogas slurry.