32results about How to "Adjustable dwell time" patented technology

The invention provides a multi-cell A<2>O system of sludge anoxic and strengthened fermentation hydrolysis. The system comprises a sludge anoxic cell, a strengthened fermentation hydrolysis cell, an anoxic cell, an aerobic cell and a secondary sedimentation tank, wherein a water inlet pipe is connected with the sludge anoxic cell; the aerobic cell is connected with the anoxic cell through an internal reflux pipeline; and 2 or 3 strengthened fermentation hydrolysis cells, 2 or 3 anoxic cells and 2-4 aerobic cells are provided. By adopting the system provided by the invention, the sludge of the sludge anoxic cell is denitrified through endogenous respiration, and the internal carbon source in sludge is fully used so that more carbon sources are applied to a nitrogen and phosphorus removal biological reaction of the mainstream AAO technology; the nitrate content of the sludge anoxic cell can be reduced to 0, the redox potential in the strengthened fermentation hydrolysis cell is very low, and the effect of anaerobic phosphorus release is improved; and meanwhile, hydrolysis fermentation is performed through a high-concentration sludge layer in the strengthened fermentation hydrolysis cell, macromolecular or refractory organic substances in the inflow water are converted into low-molecular-weight fatty acid, and a high-quality carbon source is provided for the anaerobic phosphorus release and anoxic denitrification reactions.

The invention discloses a continuously carbonizing device and method for preparing intermediate product carbonized material of a carbon molecular sieve. Particle objects are carbonized continuously inside a vertical carbonizing furnace provided with multi-section heating furnace temperature control; the furnace temperature distribution of the carbonizing furnace is constant, the processed solid material is carbonized inside the carbonizing furnace after being sequentially subjected to heating, temperature-keeping and cooling; water vapor inside the carbonizing furnace serves as cooling medium, activating agent and protective atmosphere; compositions of the gaseous product generated by the carbonized solid material are stable, the gaseous product has excellent flammability, and is discharged outside after complete combustion; the activated reaction of the processed material is controllable in space and time, and the obtained carbonized material production has stable performance; and the unit equipment has big processing capacity, and the equipment investment and running cost are low. The continuously carbonizing method provided by the invention has the characteristics of high efficiency, low consumption and environmental protection.

A device for continuously separating hexachloroethane from tetrachlorethylene solid waste, including a base, a speed-regulating motor, a driving motor, and a strip groove. The outer wall of the strip groove is covered with a heating jacket, and the opening of the strip groove is Sealed by the sealing cover, a speed regulating shaft is rotatably arranged in the strip groove, and a first helical blade extending in the axial direction is arranged on the speed regulating shaft, and the first helical blade cooperates with the groove wall of the strip groove to seal One end of the cover body is fixed with a feed vertical pipe, and the upper opening of the feed vertical pipe is connected with a tapered feed hopper. A drive shaft is rotatably arranged in the feed vertical pipe, and a first axially extending shaft is provided on the drive shaft. Two helical blades, the second helical blade is matched with the inner wall of the feed vertical pipe, the other end of the sealing cover is provided with an exhaust port for connecting with the material steam trap, and the bottom of the strip groove is provided with a discharge pipe, The discharge pipe is located below the other end of the first helical blade.

The invention relates to device (1) for applying a liquid or pasty medium (2) to a moving fibrous web (3), in particular a paper, bank note paper, cardboard, or packaging paper web, on both sides, comprising a first application roller (5.1) and a second application roller (5.2), which extend at least over the width of the moving fibrous web (3) and which form a roller gap (N) having a roller inlet area (6), through which roller gap the moving fibrous web (3) can be fed, and comprising a feed device (7) for feeding the liquid or pasty medium (2) into the roller inlet area (6) of the two application rollers (5.1, 5.2), wherein during the operation of the device (1), a liquid sump (8) is formed in the roller inlet area (6) of the two application rollers (5.1, 5.2), through which liquid sump the moving fibrous web runs, and by means of which feed device the level (9) of the liquid sump (8) can be adjusted. The device (1) according to the invention is characterized in that at least one immersion bath device (10) that also accommodates the liquid or pasty medium (2) is arranged upstream from the liquid sump (8) and the roller gap (N) as viewed in the web movement direction (L) of the moving fibrous web (3).

The invention belongs to the technical field of chemical equipment, and relates to a device for removing organic impurities in sodium chloride salt, a by-product of the chlorination process, which includes a high-temperature oxidation reactor, a dissolution kettle A, a dissolution kettle B, and a liquid-phase deep oxidation tower connected in sequence , liquid-solid filter, solid slag tank, and fine filter. First, the majority of organic impurities in the by-product sodium chloride salt are oxidized at high temperature through a multi-layer fluidized bed high-temperature oxidation reactor, and then in the liquid phase deep oxidation tower Deeply oxidize the remaining trace organic impurities, and then further remove the macromolecular organic impurities through the nanofiltration membrane separator, so as to meet the requirements of the ion membrane caustic soda industrial device for the organic impurities in the raw material of sodium chloride. The invention provides The device has the characteristics of large operating flexibility and high efficiency in the treatment of organic impurities.

The invention relates to a full-boiling vibration propelled coal humidifying and grading process. In the process, flue gas of a coke oven is taken as a heat source, a coal humidifying and grading machine is taken as coal fluidizing and humidifying equipment, and integration of coal humidifying and coal grading is realized according to principle of a vibrated fluidized bed under the action of secondary air, wherein the coal humidifying and grading machine comprises a primary air inlet section, a secondary air inlet section and a vibration distribution plate; the primary air inlet section is arranged at the lower part of the vibration distribution plate, and region at the upper part of the vibration distribution plate is a deposition separation region; and the vibration distribution plate is a vibrated fluidized bed structure which is arranged in an inclined manner, the secondary air inlet section is arranged at the upper part of the vibration distribution plate, and an airflow outlet is arranged at the top part of a grading machine. In the process, waste flue gas of the coke oven is taken as a heat medium, and the characteristics that raw material coal has high heat and mass transfer efficiency under the condition of a full-boiling fluidized bed and has low heat and mass transfer efficiency under the condition of a fixed bed and a semi-boiling fluidized bed are utilized, thus uniform and high-efficiency humidifying of coal can be realized and high-efficiency grading of the coal can also be realized.

The invention discloses a flocculation device capable of adjusting the flocculation reaction effect and a method for using it in combination with a phosphorus removal agent. Four partitions are vertically arranged in the flocculation device, and the tank body is divided into a first flocculation pool, a second flocculation pool, and a third flocculation pool. The flocculation pool, the fourth flocculation pool and the fifth pool; the partitions can be moved to adjust the volume of the five pools; the first flocculation pool, the second flocculation pool and the fourth flocculation pool are equipped with adjustable speed mixers. Add polyacrylic acid or sodium polyacrylate to the first flocculation tank, add inorganic flocculant and polydimethyldiallylammonium chloride to the second flocculation tank, and add anionic polyacrylamide to the fourth flocculation tank. The present invention regulates the flocculation reaction and achieves the best effect of flocculation phosphorus removal by adjusting the two main factors of residence time and stirring speed, and the device and the medicament are used together.

The invention discloses a seawater desalination device, which includes an evaporator (2). The top side wall of the evaporator (2) is provided with a wind inlet, an evaporator (2) side wall that is level with and opposite to the wind inlet is provided with a damp and hot steam outlet, the top of the evaporator (2) is provided with a cold seawater inlet, the bottom of the evaporator (2) is equipped with a hot seawater outlet, the evaporator (2) is internally provided with an inclined heating plate (3), the high end of the heating plate (3) is located right below the cold seawater inlet, the damp and hot steam outlet is connected to a condenser (4), the condenser (4) is internally provided with a snakelike cooling pipe (5), the inlet and outlet of the snakelike cooling pipe (5) are respectively connected to a cooling box (7), and a fresh water collecting box (6 ) is connected below the condenser (4). The seawater desalination device provided by the invention is used for concentrated seawater desalination to produce fresh water, and can guarantee residents' drinking water supply in coastal water-deficient areas.

The invention relates to a water-operated household appliance, in particular a dishwasher, having a hydraulic circuit in which washing fluid can be circulated by means of a fluid pump (13). According to the invention, at least one UV irradiation element (23) is arranged for UV irradiation of the washing fluid within the fluid pump (13).

The invention provides an embedded planetary-screw pulsation plasticizing exhaust extruder, which comprises a screw mechanism, a cylinder, a feed inlet, an air outlet, a discharge outlet and an actuating unit, wherein the screw mechanism comprises a main screw and a plurality of planetary screws, and the axis of the main screw is coincident with the axis of the cylinder; the screw arris of the main screw is provided with a plurality of holes which are matched with the planetary screws; the planetary screws are respectively inserted in the holes of the screw arris of the main screw, embedded into a screw slot and distributed around the main screw; the axes of the planetary screws are parallel to the axis of the main screw; the actuating unit comprises pulsation gears, planetary gears and apulsation-gear transmission mechanism; the planetary gears are fixed at the ends of the planetary screws and are engaged with the pulsation gears; and the pulsation gears are connected with the pulsation-gear transmission mechanism. The invention also provides an embedded planetary-screw pulsation plasticizing exhaust method implemented by the device. The embedded planetary screw pulsation plasticizing exhaust extruder and the embedded planetary-screw pulsation plasticizing exhaust method have the advantages of adjustable retention time, low energy consumption, thorough exhaust, good uniformity of phase structure control, and the like.