30results about How to "Controllable operation" patented technology

The invention relates to a system for synthesizing silicon nitride by a fluidized bed reactor. The system comprises the fluidized bed reactor, a nitrogen supply unit and a silicon powder supply unit, the fluidized bed reactor comprises a shell, a lower cavity of the shell is used for performing nitridation reaction for nitrogen and silicon powder under the fluidization condition, an air supply opening and a material supply opening are formed in the shell wall of the bottom of the shell, the nitrogen supply unit comprises a heating device for heating the nitrogen, an air outlet of the heating device is connected with the air supply opening, the silicon powder supply unit comprises a feeding barrel and a Venturi charging device, the feeding barrel is used for containing the silicon powder, a discharging port of the feeding barrel is connected with a powder inlet of the Venturi charging device, a discharging port of the Venturi charging device is connected with the material supply opening, and a discharging port in the top of the shell is connected with a cyclone separator for recovering synthesized silicon nitride. According to the system, the silicon powder and the nitrogen react under the fluidization condition, the synthesized Si3N4 cannot aggregate and cake, and continuous production of the Si3N4 can be achieved.

The invention provides a livestock and poultry breeding solid-liquid separation excrement cleaning device. The livestock and poultry breeding solid-liquid separation excrement cleaning device comprises an annular excrement collecting box; an excrement scraping plate is installed in the annular excrement collecting box; the excrement scraping plate is directly connected with a power driving mechanism or is connected with the power driving mechanism through a connecting piece; the excrement scraping plate is driven by the power driving mechanism to rotate around the annular excrement collecting box; the bottom plate of the annular excrement collecting box is an inclined plate; the lowest point of the inclined plate is located at the middle of the bottom plate; an urine discharging opening is formed at the middle of the bottom plate; and a solid excrement outlet is formed at the bottom plate of the annular excrement collecting box. According to the livestock and poultry breeding solid-liquid separation excrement cleaning device of the invention, after excrement falls into the annular excrement collecting box, solid-liquid separation of the excrement can be realized; solid excrement and liquid excrement are separately collected through different pipelines; the solid excrement is directly treated and is packaged; and the liquid can be adopted as secondary water after being purified; and therefore, excrement treatment procedures can be decreased, and treatment cost can be decreased, and underground space can be greatly saved. The livestock and poultry breeding solid-liquid separation excrement cleaning device of the invention is reasonable in integral design. The driving mechanism is arranged on the excrement scraping plate. The livestock and poultry breeding solid-liquid separation excrement cleaning device is especially suitable for annular comprehensive cultivation buildings and can realize fast and convenient solid-liquid separation treatment.

The invention provides an assembly line production cost real-time monitoring device and an assembly line production cost diagnostic method. The assembly line production cost real-time monitoring device comprises an assembly line parameter setting assembly, a feeding information collecting assembly, a qualified product collecting assembly, a defective product information collecting assembly, a cost computing assembly and a cost feedback assembly. The assembly line production cost diagnostic method comprises that an assembly line parameter setting assembly is set according to operational parameters of a plurality of assembly lines in an industry; the feeding information collecting assembly, the qualified product collecting assembly and the defective product information collecting assembly collect related data and send to the cost computing assembly; the cost computing assembly is triggered to perform cost computing at a cost computing trigger time point and sends a cost computing result to the cost feedback assembly; the cost feedback assembly performs warning on caution items and data display according to the computing result of the cost computing assembly.

Aiming at the defects of high equipment investment, high operation cost, large occupied area and the like in an ultralow-concentration and large-air-volume organic waste gas mainstream treatment process, the invention discloses a VOCs adsorption-plasma catalytic regeneration device and a treatment system and process. The adsorption-plasma catalytic regeneration device comprises a gas tank, a plasma discharge unit and an adsorption/catalyst unit. The plasma discharge unit comprises a plasma pulse power supply and a flat discharge structure. The adsorption/catalyst unit is arranged between the discharge electrodes and adopts a three-section design, namely a high-efficiency adsorption catalysis section, a buffer section and a medium-efficiency adsorption catalysis section. The high-efficiencyadsorption catalysis section is filled with a noble metal modified molecular sieve; the buffer section is hollow; and the medium-efficiency adsorption catalytic section is filled with a common metal-loaded molecular sieve. The whole device realizes the integration of adsorption, desorption and treatment units, and simplifies the treatment system. The whole process is controlled by a PLC, 24-hourcontinuous and stable operation is achieved, and VOCs are efficiently removed.

The invention provides a plasma combustion-supporting Swiss roll combustor and belongs to the technical field of low-heating-value gas utilization. The combustor comprises a combustion chamber and a spiral plate type channel. The combustor specifically comprises a combustor shell, a flow guide plate, a porous medium, a gas inflow channel, a gas outflow channel, a discharge device, an ozone addition opening, a thermometer hole, an ignition hole, an observation hole, a metal high-voltage electrode plate, an electrode leading-out wire and an exhaust chimney. The combustor is round or square. The upper end and the lower end of the combustor are sealed through sealing plates. The gas inflow channel and the gas outflow channel are formed in the two ends of the spiral plate type channel. The porous medium is located in the center of the combustion chamber. The inner wall of the combustion chamber is coated with a heat-resisting material. The combustion chamber is wrapped by a heat insulating material. The discharge device and the flow guide plate are located in an inlet of the combustion chamber. The ozone addition opening is formed in the outermost ring of the spiral plate type channel. According to the combustor, the plasma discharge device or an ozone generator and the porous medium material are combined, and the purposes of reducing energy consumption, eliminating poison and the like can be achieved.

The invention provides a method for improving nitrite accumulation in a short-cut denitrification process, and belongs to the technical field of wastewater treatment. The method comprises the following steps: S1, inoculating denitrification activated sludge into an anaerobic reactor, and adding 0.05-15 mmol of an oxidizing agent into each gram of denitrification activated sludge; and S2, feeding water into the anaerobic reactor to form a reaction mixed solution, and starting the anaerobic reactor to carry out denitrification reaction. According to the invention, by adding the specific oxidant, the reduction of nitrate is selectively promoted, and the further reduction of nitrite can be inhibited, so that the accumulation of nitrite is accelerated by increasing the generation amount of nitrite and reducing the consumption amount of nitrite, and the short-time, efficient and stable accumulation of nitrite is realized.