58results about How to "Prevent encrustation" patented technology

The invention relates to a flexible tubular solid liquid processor, with filter, heat exchange and thermal extraction functions, wherein the filter element at least comprises one flexible tubular membrane unit, upper flange room and lower flange room; the hydraulic extracting system comprises pressure container, extract pump and tubes; the material liquid of container can be filtered by the tubular filter membrane of membrane unit, and said material liquid can be used as work medium to extract the concentrated material liquid in the filter room of membrane unit and discharge filter slag; the pressure container or the filter room of membrane unit can be filled with medium to exchange heat, to realize thermal filter or extraction; the filter element is arranged on the bearing base inside the pressure container; the filter rotator can rotate the filter element to realize cross-flow filter; and the invention can be arranged with gas or water reverse tube and vacuum filter tube; the slag discharge system comprises slag discharger or tubular inner/outer membrane scraper, or vibration slag discharger, or compression slag discharger.

Disclosed is a system that prevents the development of infection and biofilm establishment in medical devices in general, and in particular Urinary Tract Infections (UTI), including Catheter-Associated Urinary Tract Infections (CAUTI). The system comprises a medical device (such as a catheter) and an antimicrobial composition containing an antimicrobial compound. A medical device delivers the composition both to the inside and/or outside portions of the device, as well as to the inside of the bladder itself and to the urethra. Reduction or elimination of the infection may be accomplished by irrigating the medical device, bathing the bladder, or irrigating the bladder with the composition.

The invention discloses a method for producing biogas by a biogas slurry reflux stirring device of an auger type biogas generation system. The method comprises the steps of pouring fermentation raw materials from a feeding pipe, fermenting in a fermentation pipeline to produce biogas, respectively gathering the biogas in fermentation areas formed between the feeding pipe/discharging pipe and adjacent gas blocking plates or between the adjacent gas blocking plates, enabling the biogas to occupy the space in the fermentation area, extruding biogas slurry to realize convection, and enabling the biogas slurry to flow to the feeding pipe, the discharging pipe and a bacteria distribution device, wherein the biogas slurry in the fermentation pipe flows into a water pressure room through a drainage hole of the feeding pipe, the drainage hole of the discharging pipe and a drainage pipe of the bacteria distribution device as the liquid level of the biogas slurry in the feeding pipe, the discharging pipe and the bacteria distribution device rises; and using the biogas stored in any one fermentation area, wherein the gas pressure of the biogas stored in the fermentation area is reduced, the biogas slurry in the adjacent fermentation area flows into the fermentation area, and the biogas slurry stored in the water pressure room flows back into the fermentation pipeline through the drainage hole of the feeding pipe, the drainage hole of the discharging pipe and the drainage pipe of the bacteria distribution device to supplement the reduced biogas space, thereby completing the circulating flow of the biogas slurry.

A device for promoting biogas slurry return flow agitation in an intertwined biogas generation system comprises a feeding pipe, a discharging pipe and a U-shaped fermentation pipeline. The U-shaped fermentation pipeline is horizontally placed, the feeding pipe and the discharging pipe are vertically connected with two end sides of the U-shaped fermentation pipeline, a water pressure space is formed on the U-shaped fermentation pipeline, a feeding pipe drain hole is formed in the joint of the water pressure space and the feeding pipe, a discharging pipe drain hole is formed in the joint of the water pressure space and the discharging pipe, a feeding pipe gas baffle plate is arranged at the joint of the U-shaped fermentation pipeline and the feeding pipe, a discharging pipe gas baffle plate is arranged at the joint of the U-shaped fermentation pipeline and the discharging pipe, at least one gas baffle plate is arranged between the discharging pipe gas baffle plate and the feeding pipe gas baffle plate, a fermentation area is formed among the feeding/discharging pipe and the adjacent gas baffle plates or between the adjacent gas baffle plates, an independent gas collecting pipe is arranged at the top of each fermentation area, the top of each fermentation area is connected with the independent gas collecting pipe, and a valve is arranged on each gas collecting pipe. A U-shaped channel-type fermentation device is used, a fermentation path is long, biogas slurry sufficiently flows in the system by control of water pressure difference and one-way valves, bacteria are driven to be uniformly distributed, crusting is effectively prevented, and gas generating rate is high.

The invention relates to a method for lowering the consumption of a tundish covering agent and belongs to the technical field of metallurgy. The method comprises the steps that 1), molten steel is injected into tundish; 2), a lower covering agent is added to the tundish to keep the temperature of the molten steel so as to prevent secondary oxidation of the molten steel; and 3), an upper covering agent is added to the tundish to keep the temperature of the lower covering agent so as to prevent the surface of the lower covering agent from crusting. In the low-carbon low-silicon steel productionprocess, the upper covering agent such as low-cost carbonized rice hulls covers the high-cost lower cover agent, the surface of the lower covering agent can be prevented from generating crusting phenomenon, the casting blank slag inclusion problem caused by crusting of the lower covering agent is avoided, the consumption of the high-cost lower covering agent is lowered, and the manufacturing costis lowered.

The invention discloses a method for generating biogas in an intertwined partitioned super-efficient bacteria distribution biogas fermentation system. 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 biogas; using the biogas stored in an optional fermentation area. The biogas 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 and the discharging pipe, and the biogas slurry in the fermentation pipeline flows into a water pressure space through a drain hole of the discharging pipe along with rise of the liquid level of the biogas slurry in the feeding pipe and the discharging pipe. The pressure of the biogas 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 into the fermentation pipeline through a drain hole of the feeding pipe and flows back into the fermentation pipeline through the drain hole of the discharging pipe to supplement reduced biogas space, so that circulating flow of the biogas slurry is finished.

A methane generation system hydraulically and pneumatically promoting uniform bacteria distribution comprises a feeding pipe, a discharging pipe and a U-shaped fermentation pipeline. The U-shaped fermentation pipeline is horizontally placed, the feeding pipe and the discharging pipe are vertically connected with two end sides of the U-shaped fermentation pipeline, a water pressure space is formed on the U-shaped fermentation pipeline, a feeding pipe drain hole is formed in the joint of the water pressure space and the feeding pipe, a discharging pipe drain hole is formed in the joint of the water pressure space and the discharging pipe, a feeding pipe gas baffle plate is arranged at the joint of the U-shaped fermentation pipeline and the feeding pipe, a discharging pipe gas baffle plate is arranged at the joint of the U-shaped fermentation pipeline and the discharging pipe, at least one gas baffle plate is arranged between the discharging pipe gas baffle plate and the feeding pipe gas baffle plate, a fermentation area is formed among the feeding/discharging pipe and the adjacent gas baffle plates or between the adjacent gas baffle plates, an independent gas collecting pipe is arranged at the top of each fermentation area, the top of each fermentation area is connected with the independent gas collecting pipe, and a valve is arranged on each gas collecting pipe. A U-shaped channel-type fermentation device is used, a fermentation path is long, biogas slurry sufficiently flows in the system by control of water pressure difference and one-way valves, bacteria are driven to be uniformly distributed, crusting is effectively prevented, and gas generating rate is high.

The invention discloses a U-shaped biogas fermentation system. The U-shaped biogas fermentation system comprises a feed pipe, a discharge pipe, 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; a gas collecting pipe is arranged on the U-shaped fermentation pipeline; a one-way valve for controlling the biogas slurry in the U-shaped fermentation pipeline to flow into the water pressure chamber in one direction is arranged at the position of the discharge pipe drain hole; 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 the one-way valve; besides, bacteria are distributed evenly to effectively prevent crusting; the U-shaped biogas fermentation system is high in gas generation rate and suitable for large-scale production.

The invention discloses an efficient biogas generation system capable of improving the turbulence effect of biogas slurry by virtue of biogas pressure. A U-shaped fermentation pipeline is horizontally arranged, a material inlet pipe and a material outlet pipe are vertically connected with both end sides of the U-shaped fermentation pipeline, a hydraulic pressure room is arranged at the upper part of the U-shaped fermentation pipeline, the connection position of the hydraulic pressure room and the material inlet pipe is a material inlet pipe drainage hole, the connection position of the hydraulic pressure room and the material outlet pipe is a material outlet pipe drainage hole, a material inlet pipe baffle plate is arranged at the connection position of the U-shaped fermentation pipeline and the material inlet pipe, a material outlet pipe baffle plate is arranged at the connection position of the U-shaped fermentation pipeline and the material outlet pipe and a biogas collection pipe is arranged on the U-shaped fermentation pipeline; the hydraulic pressure room is also connected with a bacteria-distribution device, one end side, departing from the material inlet pipe and the material outlet pipe, of the hydraulic pressure room is connected with a drainage pipe of the bacteria-distribution device, the other end of the drainage pipe is connected with a U-shaped bacteria-distribution pipe which is fixed inside the fermentation pipeline, the U-shaped bacteria-distribution pipe corresponds to the fermentation pipeline in shape and extends into the fermentation pipeline and a plurality of vertically upwards bacteria-distribution holes are formed in the U-shaped bacteria-distribution pipe.

The invention discloses a biogas generation method of a biogas generation system with strain distribution achieved under driving of biogas slurry flowing promoted by air pressure. The biogas generation method comprises the following steps that fermentation raw materials are poured into a U-shaped fermentation pipeline through a feeding pipe for fermentation, so that biogas is generated, the biogas is gathered in a space between a feeding pipe gas blocking plate and a discharging pipe gas blocking plate in the U-shaped fermentation pipe, and the biogas occupies the space in the fermentation pipe and squeezes biogas slurry in the fermentation pipe to flow into a drainage pipe for the feeding pipe, a discharging pipe and a strain distribution device and then flow into a water pressure chamber through a drainage hole of the discharging pipe, a drainage hole of the feeding pipe and a drainage pipe of the strain distribution device; when the biogas stored in the fermentation pipe is delivered to the outside through a gas collection pipe, the pressure of the biogas in the fermentation pipe is lowered, the biogas slurry stored in the water pressure chamber flows back into the fermentation pipe through the drainage hole of the discharging pipe, the drainage hole of the feeding pipe and the drainage pipe of the strain distribution device, and then circulating flowing of the biogas slurry is achieved.

The invention discloses a super-efficient biogas generation device pneumatically promoting circulating flow of biogas slurry. The super-efficient biogas generation device comprises a feeding pipe, a discharging pipe and a U-shaped fermentation pipeline, the U-shaped fermentation pipeline is horizontally placed, the feeding pipe and the discharging pipe are vertically connected with two end sides of the U-shaped fermentation pipeline, a water pressure space is formed in the upper portion of the U-shaped fermentation pipeline, a feeding pipe drain hole is formed in the joint of the water pressure space and the feeding pipe, a discharging pipe drain hole is formed in the joint of the water pressure space and the discharging pipe, a feeding pipe gas baffle plate is arranged at the joint of the U-shaped fermentation pipeline and the feeding pipe, a discharging pipe gas baffle plate is arranged at the joint of the U-shaped fermentation pipeline and the discharging pipe, a gas collecting pipe is arranged on the U-shaped fermentation pipeline, a one-way valve is arranged at the feeding pipe drain hole and controls the biogas slurry in the water pressure space to unidirectionally flow into the feeding pipe, and the position of the feeding pipe drain hole is lower than that of the discharging pipe drain hole. A U-shaped channel-type fermentation device is used, a fermentation path is long, the biogas slurry sufficiently flows in a system by control of water pressure difference and the one-way valve, bacteria are driven to be uniformly distributed, crusting is effectively prevented, gas generating rate is high, and the super-efficient biogas generation device is suitable for large-scale production.

The invention discloses a novel rod liquid stirring type feces anaerobic fermentation device. The device comprises a fermentation tank, a dirt inlet and a dirt suction structure, a hollow stand columnis driven by a driving structure to rotate is arranged in the center of the fermentation tank, a hydraulic cylinder is arranged on the top of the hollow stand column, and the hollow stand column is divided into a suction cavity and a liquid discharge cavity; a piston rod of the hydraulic cylinder penetrates into the suction cavity and provided with a suction head dividing the suction cavity intoa vacuum cavity and a liquid suction cavity, a hollow liquid suction arm with a liquid suction opening is arranged on the outer wall of the liquid absorption cavity, and a liquid inlet check valve isarranged at the communication portion of the hollow liquid suction arm and the liquid suction cavity; multiple hollow liquid discharge arms provided with liquid discharge openings formed in the side walls are uniformly arranged on the outer wall of the liquid discharge cavity in the circumferential direction. According to the feces anaerobic fermentation device, the uniformly of fermentation solution mixing is greatly improved, the feces suspension effect is improved, and meanwhile the crusting phenomenon is avoided.

The invention discloses a method for producing methane by virtue of a bent-type multi-zone fermentation super-efficient methane generation system. The method comprises the following steps: pouring a fermenting raw material from a feeding pipe and fermenting in fermenting pipelines to produce methane, respectively gathering methane inside fermentation zones formed between a material inlet/outlet pipe and adjacent air baffle plates or between adjacent air baffle plates so that methane occupies spaces inside the fermentation zones and squeezes biogas slurry to form convection; when the air pressure of methane stored inside the fermentation zone is reduced, enabling the biogas slurry inside the adjacent fermentation zones to flow towards the fermentation zones, wherein biogas slurry stored inside a hydraulic pressure room returns to the fermenting pipelines in a one-way manner through a water discharge hole of the feeding pipe and a water discharge pipe of a strain-distribution device and a water discharge pipe of the discharge pipe; and when the level of the biogas slurry stored inside the hydraulic pressure room is reduced below the lowest point of the water discharge hole in the discharge pipe, enabling biogas slurry stored inside the hydraulic pressure room to flow into the fermenting pipelines in a one-way manner through the water discharge hole of the feeding pipe and the water discharge pipe of the bacteria-distribution device.

The invention discloses a dragon type super-effective biogas fermentation system. The dragon type super-effective biogas fermentation system comprises a feeding pipe, a discharge pipe and a U-shaped fermentation pipeline, the U-shaped fermentation pipeline is arranged horizontally, the feeding pipe and discharge pipe are vertically connected with two ends of the U-shaped fermentation pipeline, the upper part of the U-shaped fermentation pipeline is provided with a water pressure room, a water drain hole of the feeding pipe is formed in the joint between the water pressure room and the feeding pipe, a water drain hole of the discharge pipe is formed in the joint between the water pressure room and the discharge pipe, a feeding pipe gas baffle plate is arranged at the joint between the U-shaped fermentation pipeline and the feeding pipe, a discharge pipe gas baffle plate is arranged at the joint between the U-shaped fermentation pipeline and the discharge pipe, at least one gas baffle plate is arranged between the discharge pipe gas baffle plate and the feeding pipe gas baffle plate, a fermentation zone is formed between the feeding/discharge pipe and the adjacent gas baffle plate or between the adjacent gas baffle plates, and an independent gas gathering pipe is arranged at the top of each fermentation zone; the top of each fermentation zone is connected with the independent gas gathering pipe, and the gas gathering pipe is provided with a valve. By means of the U-shaped passage type fermentation device, the fermentation route is long, biogas slurry completely flows in the system under the control of water pressure difference and a check valve, the strain is driven to distribute uniformly, the crusting phenomenon is effectively avoided, and the gas productivity is high; the dragon type super-effective biogas fermentation system is suitable for scale production.