58results about How to "Guaranteed oxygen concentration" patented technology

An efficient facility earthworm breeding device is composed of a rotten reactor, an earthworm cultivation device, two earthworm breeding device bodies, an earthworm cast collecting box, an earthworm collecting box and a support. The rotten reactor is provided with a stirring device, and a material conveying device is arranged below an outlet. An earthworm cast outlet of the earthworm cultivation device is communicated with the earthworm cast collecting box. The two earthworm breeding device bodies are the same in structure, a rake-shaped scraper blade is arranged on each earthworm breeding device body so that materials can be discharged out, and the earthworm cast outlets of the earthworm breeding device bodies are communicated with the earthworm cast collecting box. The rotten reactor, the earthworm cultivation device, the two earthworm breeding device bodies and the earthworm collecting box are respectively fixedly connected with the support from top to bottom. The facility earthworm breeding device is used, a one-time earthworm inoculation method and a two-step growing method are used for conducting reducing and resource utilization of biomass. The efficient facility earthworm breeding device has the advantages that the structure is simple, operation is easy, the earthworm breeding efficiency can be effectively improved, the breeding time is shortened, the earthworm yield is improved, energy consumption is reduced, breeding cost is lowered, and safety and reliability are achieved.

The invention relates to an ammonia desulfurization and denitration type flue gas purification system, belongs to the technical field of flue gas treatment and environment equipment. More specifically, the system takes ammonia as an absorbent for absorbing SO2 and NOx in flue gas from an absorption tower; oxygen is introduced for oxidizing, wherein ammonium sulfite is oxidized into ammonium sulfate; the NOx which is difficult to oxidize in a liquid phase reacts with the oxygen in a gas phase through analysis; a reaction product is also absorbed by the ammonia and is returned to the absorption tower, so that a mixed product of the ammonium sulfate and ammonium nitrate is prepared. The ammonia desulfurization and denitration type flue gas purification system has the beneficial effects that the aims of removing dust, performing desulfurization and denitration, and recycling the NOx are fulfilled; the system investment is low; the operation is stable and reliable; the resource and energy consumption is low; the NOx recovery rate is high; by-produces such as sulfur-containing and nitrate-containing products are obtained; the product value is high; the implementation effect is good; the desulfurization rate is greater than or equal to 98 percent; the denitration rate is greater than or equal to 85 percent; the NOx recovery rate is greater than or equal to 85 percent.

The invention relates to a sewage treatment tank and a treatment process. The treatment tank comprises a sedimentation tank and a degradation tank, the degradation tank is a tank body wrapped by tank walls and compartment walls arranged in the tank body in parallel, the tank body is divided into a fluid passage distributed in an S shape by the compartment walls, then, a partition wall vertical to the compartment walls is arranged in the fluid passage, and the fluid passage is sequentially divided into a regulation zone, an anoxic zone, an anaerobic zone and an aerobic zone; the regulation zone and the aerobic zone are separately communicated with the sedimentation tank, the regulation zone is provided with a sewage inlet pipe, and the middle of the aerobic zone is communicated with the regulation zone through a return pipe. Compared with the prior art, the sewage treatment tank and the treatment process add a regulation zone before the anoxic zone, the oxygen concentration in sewage flowing into the anoxic zone is ensured to be 0.3-0.4mg / L, and the effect of denitrification is enhanced; a controller is added, the quantity demanded by sludge and changes in oxygen concentration in the regulation zone can be automatically sensed, then, a sludge pump and an air blower are controlled to open and close and the flow quantity is controlled, and therefore the functions of sludge rate and oxygen concentration automatic regulation are achieved, and the treatment process is more automated.