45results about How to "Uniform atmosphere" patented technology

The invention relates to a high-activity ultrafine aluminum powder preparing process and a high-activity ultrafine aluminum powder preparing device. The high-activity ultrafine aluminum powder preparing process comprises melting, atomizing and classifying steps. The high-activity ultrafine aluminum powder preparing device relates to a special aluminum melting furnace and a gas atomizing nozzle, wherein the aluminum melting furnace comprises an aluminum melting furnace body with a circular furnace bottom, a burner nozzle installed in the aluminum melting furnace body, and a furnace door installed on the aluminum melting furnace body; a vertical furnace body is installed at the upper end of the aluminum melting furnace body; a feed port is formed in the upper end surface of the vertical furnace body; the high-activity ultrafine aluminum powder preparing device is characterized in that an aluminum liquid heat-preserving area is arranged on one side inside the aluminum melting furnace body with the circular furnace bottom; one end of an aluminum liquid suction pipe is communicated with the aluminum liquid heat-preserving area; the other end of the aluminum liquid suction pipe is connected with aluminum powder producing equipment; a flue gas recycling hood is installed at the upper end of the furnace door; an air preheater is communicated with the flue gas recycling hood and the vertical furnace body; and an air inlet of the burner nozzle is connected with the air preheater. The high-activity ultrafine aluminum powder preparing process and the high-activity ultrafine aluminum powder preparing device have the characteristics of simple process, low production cost, recyclability of a mixed gas, reasonable structures of the aluminum melting furnace and the gas atomizing nozzle, high production efficiency and the like.

The invention discloses a heat processing method of punching bow, which comprises the following steps: (1) heating furnace temperature to 850 deg.c; loading bow in the furnace; dripping alcohol in the furnace at 5-6ml / min; finishing dripping alcohol after 1h; starting dripping the composite liquid of alcohol and water with bulk rate at 1: 4; (2) heating to 1000 deg.c; insulating 4h; keeping pressure of furnace to 0.6-1.0Kpa; (3) cooling temperature to 850 deg.c; fetching bow out of furnace; transmitting bow through high-temperature fan; making the temperature in the furnace evenly.

The invention provides a sintering adjusting method of a porcelain insulator in a strong reduction period. By the adjustment of the proportion of the amount of combustion-supporting wind and the amount of fuel gas in a furnace, the sintering adjusting method of the porcelain insulator in the strong reduction period is improved and ameliorated, and is applicable to sintering of large blanks of megavolt hollow insulator, rod types and the like, a unified norm is formed, and generating of crystallization, glaze bubbles and orange peel defects is effectively eliminated.

The invention relates to the technical field of waste treatment, in particular to a fancy spiral electronic waste pyrolysis device. The device comprises an electronic waste pyrolysis reactor and an electric heating system, wherein the electronic waste pyrolysis reactor comprises a material pyrolysis assembly and a reactor shell. The material pyrolysis assembly comprises a spiral sleeve and a fancy spiral. The fancy spiral is located inside a temperature section where tar is generated inside the spiral sleeve, and the fancy spiral comprises a spiral shaft and fancy spiral blades, and each fancy spiral blade is provided with a plurality of opening gaps with angles; the electric heating system comprises a heating module and an insulation layer, the insulation layer is located on the outer side of the spiral sleeve inside the closed space, and the heating module is arranged on the outer surface of the insulation layer. The device adopts the fancy spiral blades for conveying raw materials, the materials are stressed in the axial and tangential directions when passing through the fancy spiral blades, adhesion and hardening of the materials are avoided, and blockage is avoided.

The invention relates to a non-sealing solid oxide fuel battery pack with double gas channels, belonging to the field of electrochemical power generation. The non-sealing solid oxide fuel battery pack solves the problems that single batteries in a conventional single gas-chamber solid oxide fuel battery pack have nonuniform gas atmosphere, which affects the output voltage and output power of the battery pack. The battery pack is formed by connecting a plurality of single batteries in series or in parallel through connecting sheets, wherein a fuel-enriched vent pipe and an oxygen-enriched ventpipe are arranged relatively in parallel, the battery pack is arranged between the fuel-enriched vent pipe and the oxygen-enrich vent pipe, a plurality of fuel ports are arranged on the lateral wall of the fuel-enriched vent pipe with equal intervals, a plurality of oxygen ports are arranged on the lateral wall of the oxygen-enriched vent pipe with equal intervals, each fuel port corresponds to an anode of the single battery, each oxygen port corresponds to a cathode of the single battery, the anode and the cathode of the battery pack are respectively led out through an anode lead wire and a cathode lead wire, fuel-enrich gas is filled in the fuel-enriched vent pipe, and oxygen-enrich gas is filled in the oxygen-enriched vent pipe. The invention is mainly applicable to power generation.

The invention discloses a system for preparing furfural from biomass through a continuous hydrothermal reaction in the atmosphere of CO2. The system comprises a raw material conveyor (6), a coil typereaction kettle (10) and a centrifugal machine (17); the raw material conveyor (6) comprises a feeding valve (4), a storage tank (5), a discharging valve (1) and a slurry conveyor (26); the coil typereaction kettle (10) is provided with a coil type reactor (9), a heating sleeve (8) sleeves the coil type reactor (9), and a CO2 pipeline (23) is arranged in the center of the coil type reactor (9); an exhaust port (16), a liquid outlet (21) and a solid phase outlet (20) are formed in the centrifugal machine (17), and the exhaust port (16) and the CO2 pipeline (23) are in butt joint. The continuous hydrothermal reaction is realized. The invention further discloses a method for preparing furfural from biomass through the continuous hydrothermal reaction in the atmosphere of CO2. The problems are solved that in an existing continuous reaction, operation is complex, and heating is not uniform, and product quality is improved effectively.

Provided is a manufacturing method for a jig for firing and a honeycomb structural body. The jig for firing that even when repeatedly used in the firing of honeycomb molding while satisfactorily advancing the reaction of sintered body generation, is capable of preventing any coat layer detachment and is employable over a prolonged period of time to thereby attain reduction of running cost. The jig for firing is a jig for honeycomb molding firing including a housing for mounting thereon a columnar honeycomb molding composed mainly of silicon carbide with its side face laid down and including a coat layer provided on at least a face for honeycomb molding mounting of the housing, characterized in that the coat layer is composed mainly of silicon carbide, and that the arithmetic mean height of the coat layer determined in accordance with JIS B 0601(2001) is 10 mum or less.

The invention discloses a preparation method of a low dielectric constant thin film layer. When the vacuum degree in a furnace body is smaller than 10-30 Pa, a radio-frequency power supply and a matcher are started; after a second mass flow meter is started, exhaust nitrogen used for emptying residual gas in the furnace body is fed in; octamethylcyclotetrasiloxane and cyclohexane are mixed uniformly and injected into a pressure-proof stainless steel kettle, a baffle valve is shut down manually, bubbling nitrogen and inert gas are injected respectively from a first gas inlet pipe and a second gas inlet pipe, sequentially flow through a first pressure-proof gas mixing tank, the pressure-proof stainless steel kettle and a first nozzle and are fed into the furnace body, accordingly the octamethylcyclotetrasiloxane and the cyclohexane are brought into the furnace body, and the octamethylcyclotetrasiloxane, the cyclohexane, the bubbling nitrogen and the inert gas deposit on the surface of a substrate to form the thin film layer under the plasma condition. According to the method, the dielectric constant value of a thin film is adjusted and controlled conveniently and precisely, the thin film layer with a low dielectric constant value is obtained, chemical components of the thin film layer are more uniform, the thin film layer has good thermostability and hardness, and flatness of the thin film is improved.

The invention discloses laser annealing equipment which comprises a deoxidation chamber, an excimer laser generator located above the deoxidation chamber and an annealing chamber located below the deoxidation chamber. The annealing chamber comprises a bearing table used for bearing a substrate with an amorphous silicon film; the deoxidation chamber comprises a bottom cover plate, an annealing window and a nitrogen conveying pipe; the bottom cover plate comprises a laser exit slit and a plurality of gas diffusion holes distributed around the laser exit slit; nitrogen provided by the nitrogen conveying pipe fills the deoxidation chamber and diffuses to the bearing table through the laser exit slit and the gas diffusion holes; and a laser emitted by the excimer laser generator is emitted to the bearing table through the annealing window and the laser exit slit in sequence. The multiple gas diffusion holes are additionally formed in a periphery of the laser exit slit so that a nitrogen atmosphere blown to the surface of the bearing table by the laser exit slit and the gas diffusion holes is uniform, a melting recrystallization area is in a pure nitrogen environment, crystallization quality is improved, and then a product yield is increased.

The invention discloses a heat processing method of punching bow, which comprises the following steps: (1) heating furnace temperature to 850 deg.c; loading bow in the furnace; dripping alcohol in the furnace at 5-6ml / min; finishing dripping alcohol after 1h; starting dripping the composite liquid of alcohol and water with bulk rate at 1: 4; (2) heating to 1000 deg.c; insulating 4h; keeping pressure of furnace to 0.6-1.0Kpa; (3) cooling temperature to 850 deg.c; fetching bow out of furnace; transmitting bow through high-temperature fan; making the temperature in the furnace evenly.

The invention discloses a crystalline silicon solar cell and a diffusion method thereof. The method comprises the following steps of: putting a silicon chip into a diffusion furnace and raising the temperature to 780-800 DEG C; introducing a preset amount of small nitrogen, oxygen and large nitrogen into the diffusion furnace through a diffusion furnace tube and keeping the internal temperature of the diffusion furnace at 780-800 DEG C for 15-20 minutes; introducing a preset amount of oxygen and large nitrogen into the diffusion furnace through the diffusion furnace tube and raising the internal temperature of the diffusion furnace to 850-870 DEG C for 10-18 minutes; and cooling the diffusion furnace and taking the silicon chip out, wherein the gas flow in the diffusion furnace tube is constant in the entire diffusion process. The depth of a PN junction of a solar cell produced with the method is small, the square resistance is more uniform, and the conversion efficiency of the solar cell is increased.

The invention discloses a gas medium homogenization device for high-power laser diode sintering, which relates to the field of optoelectronic technology. The suction nozzles of the equipment are sealed and matched, and the support is provided with an intake passage and an exhaust passage that communicate with the intake pipe and the exhaust pipe, and the other ends of the intake passage and the exhaust passage communicate with the hollow area in the middle of the support. Install the bracket on the sintering table, so that the heat sink with solder is fixed to the connecting plate in the hollow area, a high-power laser diode is placed on the heat sink with solder, and the suction nozzle of the sintering equipment is adsorbed above the hollow area, reducing the gas Entering from the intake passage, it can fully cover the surface of the solder, which can fully restore the solder in the sintering area of ​​the laser diode chip, and then use the exhaust passage to export the reduced exhaust gas to form a complete circuit. The invention has the advantages of simple structure, homogenization of reducing gas, and improvement of consistency of solder reduction.

The invention discloses a safety electric furnace utilizing waste heat, and relates to the technical field of waste heat utilization equipment. The safety electric furnace structurally comprises a tank body, wherein an energy-saving mechanism is fixedly connected to the bottom of the inner side face of the tank body, the energy-saving mechanism comprises a motor, the surface of the motor is fixedly connected with the bottom of the tank body, an air control mechanism is fixedly connected to the top of the motor, a water inlet pipe and a water outlet pipe are fixedly connected to the surface of the air control mechanism, and activated carbon is fixedly connected to the bottom of the inner side face of the tank body. According to the safety electric furnace utilizing the waste heat, the problem of how to effectively utilize the waste heat generated by the electric furnace is solved by designing the energy-saving mechanism, when residual gas reaches the connecting wall after passing through the air outlet, water flow is introduced into the connecting wall, and the speed direction of the water flow is perpendicular to that of air flow, so that the heat transfer efficiency is improved more efficiently, in the process, toxic gas generated by smelting is effectively adsorbed by the activated carbon.

The present invention relates to a substrate liquid processing apparatus which etches and cleans a substrate for a semiconductor. The substrate liquid processing apparatus comprises: a substrate supporting part for supporting a substrate on the top of a table being spaced apart from the substrate so that a surface to be processed is facing the bottom of the table; a rotational driving part for driving a rotation axis which rotates the table; and a processing liquid supplying part for supplying, in a processing space between the table and the substrate, processing liquid in a mist state in which gas is mixed or processing liquid in a steam state. According to the substrate liquid processing apparatus, it is possible to uniformize an atmosphere of the processing space between the substrate and the table, and to uniformly spray the processing liquid on the surface to be processed.