4 results about "Treatment unit" patented technology

The invention provides a system for continuously recycling a waste ternary lithium-ion battery and belongs to the technical field of recycling of lithium-ion batteries. The system comprises a pre-treatment unit, an acid leaching unit, a primary impurity removal unit, a co-precipitation unit, a secondary impurity removal unit and an ammonia recycling unit, wherein the pre-treatment unit comprises apulverizer, a pulse dust collection device, a positive and negative electrode powder cabin and a separation machine; the acid leaching unit comprises a leaching reaction kettle and a micro-filteringmachine I; the primary impurity removal unit comprises an impurity removal reaction kettle and a squeezing machine; the co-precipitation unit comprises a material preparation kettle, a co-precipitation reaction tank and a centrifugal machine; the secondary impurity removal unit comprises a secondary impurity removal reaction kettle and a micro-filtering machine II; the ammonia recycling unit comprises a heater, an evaporation crystallization device, a condenser and an ammonia liquid receiving tank. The invention further provides a technology for continuously recycling the waste ternary lithium-ion battery by utilizing the system. According to the system provided by the invention, a prepared nickel-cobalt-manganese ternary material precursor has high purity and large tap density; grains have a small grain diameter and narrow distribution and are uniformly mixed; a lithium sulfate solution can be directly used for producing lithium carbonate.

The invention discloses a discharge treatment system for the produced water of a polymer flooding oilfield, and belongs to biochemical discharge treatment of tertiary oil recovery polymer-containing sewage of the oilfield. Sulfate reducing bacteria having polyacrylamide degradation ability are cultured and screened; the produced water of the polymer flooding oilfield is treated though a combined process comprising a sulfate reducing bacteria pretreatment unit, a hydrolytic acidification unit and a contact oxidation unit; the sulfate reducing bacteria pretreatment unit is used for partially degrading and removing residual HPAM (Hydrolyzed Polyacryamide) out of the sewage at first, so that the load of the subsequent treatment units is reduced; a low-intensity ultrasonic generator is used for increasing the activity of a microbial enzyme by performing irradiation treatment on the activated sludge so that the capacity of decomposition of microorganisms on organic matters is improved; several techniques are combined to achieve the synergistic effect for improving the overall treatment capacity and the applicability of the process to the produced water of the polymer flooding oilfield. The discharge treatment system provided by the invention is simple in process and easy to implement, and is expected to realize standard discharge of the produced water of the polymer flooding oilfield in combination with auxiliary units such as a sedimentation tank.

The invention relates to a mechanical button type integrated B-ultrasonic detecting system which comprises a mainframe, a probe, and a display and an operating keyboard which are electrically connected with the mainframe. The probe is connected with the mainframe through a cable with one end connected with a plug. The probe comprises an ultrasonic generator and an ultrasonic receiver which are connected with a control unit respectively. The output end of the ultrasonic receiver is connected with a signal processing unit. The signal processing unit is connected with the mainframe through the cable and the plug. Mechanical buttons are arranged on the probe and connected with the control unit and the plug respectively through a switching unit. Compared with conventional B-ultrasonic detectors, the mechanical button type integrated B-ultrasonic detecting system has the advantages that the mechanical buttons are arranged on the probe for probe switching, so that the number of the cables and probes is reduced, cable intertwining is avoided, cost is reduced, and the mechanical button type integrated B-ultrasonic detection system is simple in structure and convenient to operate.

The invention provides a biochemical tubular reactor for water treatment. The biochemical tubular reactor for water treatment is suitable for sewage treatment and can solve the problems that in a biological method water treatment device, the effective microorganism concentration is low, the contact efficiency of microorganisms and sewage is low, and the biochemical reaction controllability is poor. The biochemical tubular reactor for water treatment comprises a tank body which is connected with a water inlet tube, and biochemical tubular reaction units are arranged in the tank body; the biochemical tubular reaction units comprise working tubes which are sequentially connected through connecting tubes, sewage treatment units are arranged in the working tubes, water inlets of the working tubes are formed in the tank body, and water outlets of the working tubes stretch out of the tank body through a water outlet tube. According to the biochemical tubular reactor for water treatment, reactor technology conditions are controllable, the flow velocity and the water distribution uniformity are improved, the strain utilization rate is promoted to be increased, and the sewage and strains are mixed and contacted fully; the effect that pollutants are removed by means of the microorganisms is significantly enhanced, biomass is increased, the activity of the biomass is improved, physical conditions and biochemical conditions of technology operation are guaranteed, and efficiency improving and consumption reducing of a system are achieved.