96results about How to "Not affected by high temperature" patented technology

A partial high-temperature protection system in a laser selective melting forming room comprises a high-temperature heat insulation cover. The high-temperature heat insulation cover is mounted on theinner rear wall of the laser selective melting forming room through two supports. A water cooling device is arranged above the high-temperature heat insulation cover and is mounted on the inner top face of the laser selective melting forming room. A galvanometer system is arranged at the position, corresponding to the water cooling device, of the top of the laser selective melting forming room. Aninfrared thermometer is arranged on the left side of the galvanometer system. A printing working platform is arranged below the high-temperature heat insulation cover. A powder pavement device is located on a working table of the laser selective melting forming room. According to the partial high-temperature protection system, the high-temperature protection function within the forming area partial range in the forming room in laser selective melting equipment is achieved, the heat utilization rate and the partial dust removal rate are increased, and the system is also suitable for vacuum environment 3D printing forming.

The invention discloses a switched reluctance generator comprising a stator with a winding, a rotor without winding and a driving device, wherein the stator and the rotor are provided with a plurality of salient pole structures and are composed of laminated silicon steel sheets; centralized armature windings are arranged on the teeth of the salient pole structures of the stator, and armature windings on two teeth of identical phase of the winding are connected to one phase; the winding is connected with an energy storage device through an electronic switch; the rotor is connected with the driving device and can be driven by the driving device to rotate relative to the stator so as to generate induced electromotive force in the winding. The switched reluctance generator disclosed by the invention has the advantages of: (1) the structure is simple and the cost is low, which are the advantages of an asynchronous generator; (2) the efficiency is high, which is the advantage of a permanent magnet synchronous generator; (3) the adaptability is strong and no high temperature effect exists; (4) a disk-shaped motor structure is small in volume and light in weight; and (5) the output voltage is stable and no low speed or high speed effect exists.

The invention discloses a preparation method of a steel cord enhanced graphite silicon carbide crucible. The preparation method comprises the following steps: 1, selecting steel cords, then covering the steel cords with an alloy coating by a chemical plating method, and finally knitting the steel cords covered with the alloy coating to form a grid-shaped cage structure; 2, mixing graphite powder with silicon carbide particles according to a certain ratio to prepare a graphite silicon carbide mixture; 3, placing the prepared cage formed by knitting the steel cords into a deformable rubber mould and then filling the rubber mould with the graphite silicon carbide mixture prepared in the step 2; adjusting the position of the cage formed by knitting the steel cords; 4, placing the rubber mould into isostatic equipment, and pressing the graphite silicon carbide mixture and the cage formed by knitting the steel cords together by adopting an isostatic pressing method to form a crucible blank; and 5, sintering the prepared crucible blank at a high temperature.

A description is given of a method as well as a plant for manufacturing cement clinker by which method cement raw meal is preheated in a preheater (1), calcined in a calciner (3) comprising an upper end (3a) and a lower end (3b), burned into clinker in a kiln (5) and cooled in a subsequent clinker cooler (7). The invention is peculiar in that exhaust gases from the kiln (5) are introduced into the upper end (3a) of the calciner, in that fuel is likewise introduced into the upper end (3a) of the calciner, in that the exhaust gas/fuel suspension is directed down through the calciner (3), in that preheated air from the clinker cooler (7) and preheated raw meal from the preheater (1) in combination or separately are fed into the calciner (3) at a location under the zone where exhaust gases from the kiln and fuel are introduced, in that the preheated air is directed down through the caliciner (3), being gradually mixed with the exhaust gas/fuel suspension, in that the raw meal under the action of gravity is directed down through the calciner (3) along its wall, being suspended in the exhaust gases at the lower end (3b) of the calciner, and in that the exhaust gas/raw meal suspension is extracted from the lower end (3b) of the calciner and conveyed to a separating means (4) for separating the raw meal which is subsequently directed to the kiln (5). Hereby is obtained a significant reduction of the NOx which is led to the calciner together with the kiln exhaust gases, a high degree of fuel burn out even when using fuels with a low content of volatile constituents, and a low degree of conversion into NOx of the nitrogen which is led to the calciner together with the fuel.

The invention belongs to the technical field of polypropylene plastics, and particularly relates to a polypropylene sheet. The polypropylene sheet comprises a sheet body; a rectangular cavity is formed in the sheet body, and the interior of the rectangular cavity is divided into a first cavity and a second cavity through a transverse plate made of polypropylene. A liquid storage chamber is formed in the top of the sheet body, a group of partition plates are attached to the interior of the liquid storage chamber, the adjacent partition plates are connected through compression springs, and mercury is filled between the ends, away from the compression springs, of the partition plates and the liquid storage chamber in a sealed mode. The polypropylene sheet is simple in modeling, and the pull rope can be separated from the piston plate on the basis that mercury is heated to expand, so that the barium hydroxide octahydrate crystals and the ammonium chloride crystals are subjected to mixed reaction to absorb heat, and the purpose of cooling the polypropylene sheet is achieved. When the temperature is high, the sheet body is protected, and therefore the polypropylene sheet holds the advantages of being high in impact resistance, tough in mechanical property and resistant to corrosion of various organic solvents and acid and alkali.

The invention discloses a capacitive cable-type voltage transducer for a ring main unit. A high-voltage end copper bar is arranged at the upper end of a high-voltage-end aluminum sleeve,the high-voltage-end aluminum sleeve sleeves the outer surface of an epoxy glass fiber tube,a silicon rubber insulation sleeve is arranged below the high-voltage-end aluminum sleeve,and a semi-conductive silicon rubber sleeve is arranged on the outer surface of the silicon rubber insulation sleeve; a high-voltage-end polypropylene capacitor is arranged inside the epoxy glass fiber tube,an aluminum base is arranged at the bottom of the epoxy glass fiber tube,and a phase-zero-sequence error-adjustable coil and a low-voltage-end polypropylene capacitor are arranged inside the aluminum base; an epoxy mixture seals the epoxy glass fiber tube,the high-voltage-end polypropylene capacitor,the phase-zero-sequence error-adjustable coil and the low-voltage-end polypropylene capacitor as a whole for insulating treatment; a four-core shielded twisted pair cable is guided out from the left side of the aluminum base. The capacitive cable-type voltage transducer is simple in structure,low in weight and small in size,a special measuring cabinet does not need to be arranged,the cost is lowered,and the capacitive cable-type voltage transducer is simpler and more convenient to operate; the space is saved,the performance is improved,and functions of voltage sampling,measuring,protection,zero sequence,discharging and the like are integrated; the capacitive cable-type voltage transducer is convenient to detach andeasy to replace.

The invention relates to the technical field of fireproof fabrics and in particular relates to a fireproof fabric capable of being porcelainized and a preparation method of the fireproof fabric. The fireproof fabric is prepared from liquid silicone rubber capable of being porcelainized and a surface-treated glass fiber fabric, wherein the glass fiber fabric is an alkali-free glass fiber fabric ora low-alkali glass fiber fabric; a coupling agent for treating the surface of the glass fiber fabric is one or two of a silane coupling agent HK550, a silane coupling agent KH570 and tetrabutyl titanate; the fireproof fabric provided by the invention does not utilize inorganic salts which are harmful to bodies and fireproof inorganic components are covered with the silicone rubber and are not in contact with human bodies, so that the safety performance is high; compared with common silicone rubber, the liquid silicone rubber capable of being porcelainized has the advantages that the liquid silicone rubber capable of being porcelainized does not crack and fall off at high temperature so that glass fibers in the silicone rubber can be protected from high-temperature invasion, and furthermore, the utilization temperature can be higher and a high-temperature utilization range of 600 to 900 DEG C can be reached; the fireproof fabric provided by the invention has better air tightness, does not contain carcinogenic substances and has lower cost.

The invention relates to the technical field of valve design, and specifically discloses a pilot operated safety valve for high-temperature working conditions. The pilot operated safety valve for the high-temperature working conditions comprises a main valve, a pilot valve and a heat exchange device, wherein the pilot valve is connected with one end of the heat exchange device, a gas chamber of the main valve and the valve body cavity of the main valve through pressure pipes respectively, and the other end of the heat exchange device is connected with a dipper-shaped pipe arranged at the main valve through a pressure pipe. According to the pilot operated safety valve for the high-temperature working conditions, an inlet seal structure is designed in the pilot valve so as to prevent a medium from entering the gas chamber of the main valve through the pilot valve, and an outlet seal structure is designed in the pilot valve so as to prevent a medium in the gas chamber of the main valve from entering the outlet of the pilot valve; in addition, a metal hard seal structure is adopted in the sealing surface of the main valve, a valve flap of the main valve is mounted on a recoil plate and can swing slightly, and when the main valve is closed, the valve flap of the main valve can be automatically calibrated so as to improve the sealing performance of the main valve while the problem of high-temperature seal of the main valve is solved.

The invention discloses an electrical cabinet. The electrical cabinet comprises an external support shell, wherein a moving sliding plate is arranged at one end of an exterior of a fixed support rackand is fixedly connected with an electrical appliance carrying plate, limitation blocks are fixedly connected to two sides of a top end of the electrical appliance carrying plate, buffer protection mechanisms are fixedly connected to a left side and a right side of an inner wall of an external support shell, a press clamping mechanism is fixedly connected to a middle position of a top end of the interior of the external support shell, a refrigerator is fixedly connected to a middle position of a bottom end of the interior of the external support shell, communication pipelines are fixedly connected with the top of the fixed support rack, ventilation holes are uniformly formed in top ends of the communication pipelines, and electric fans are arranged in the communication pipelines and are fixedly connected with positions arranged on a front surface of the fixed support rack. The invention relates to the technical field of electrical cabinets. By the electrical cabinet, the purposes thatelectrical appliance is conveniently fixed in the electrical cabinet, the installation efficiency is improved, the labor of an installation worker is reduced, the electrical appliance is completely prevented from being damaged during swinging, normal working of the electrical appliance is simultaneously ensured, the electrical appliance is free from high-temperature influence and the practical lifetime of a motor is prolonged are achieved.

The invention discloses a smokeless straw burning machine, and relates to the field of straw recycling equipment. The machine comprises a rack, a power system, an operation system and a moving system,a burning box is arranged on the rack, the burning box comprises an earth delivery machine which is arranged on the upper portion of the burning box, a grass storage net arranged in the middle of theburning box, an ash delivery machine arranged at the lower portion of the burning box and a mixing box arranged at the rear portion of the burning box, the tail ends of the earth delivery machine andthe ash delivery machine are connected with the interior of the mixing box, a grass collecting device which is used for grabbing the straw on the ground and lifting the straw to the grass storage netis arranged at the front end of the rack and an earth shoveling device which is used for shoveling earth on the ground and lifting and delivering the earth to the earth delivery machine, a gas discharging device is arranged on the top of the burning box, an air suction port is formed in the front end, and a discharging port is formed in the lower portion of the mixing box. By means of the smokeless straw burning machine, the problem that a straw recovery device cannot perform processing and utilizing on straw in the prior art can be solved.

The invention discloses a new energy automobile motor with efficient heat dissipation, which comprises a motor main body, wherein a first limit plate is movably arranged at the outer surface of the front end of the motor main body; a rotating disc is movably arranged at the outer surface of the front end of the first limiting plate; a second limit plate is movably arranged at the outer surface ofthe front end of the rotating disc; the outer surface of the front end of the second limit plate is movably connected with a coaxial rotating disc; the outer surface of the front end of the coaxial rotating disc is movably connected with a rotating connecting shaft; the outer surface of the motor main body is coated with a water cooling layer; the external surface of one side of the water coolinglayer is movably connected with a connecting plate, and the outer surface of the upper end of the connecting plate is provided with a threaded hole. According to the invention, the automobile motor with efficient heat dissipation is provided with the water cooling layer and a first gear, can rapidly dissipate heat to the automobile motor, and can facilitate the disassembly and installation of theautomobile motor, thereby bringing better use prospect.

The invention relates to a soxhlet extractor capable of preventing thermal degradation. The soxhlet extractor comprises an extracting pipe, a siphon, a U-shaped elbow, a flask, a branch pipe and a condenser pipe which are sequentially communicated together, wherein the lower end of the condenser pipe is communicated with the extracting pipe to form a loop structure which is mutually communicated;a rectifying pipe is further arranged on the branch pipe, and the condenser pipe, the extracting pipe and the flask are sequentially arranged from top to bottom; the upper end of the branch pipe is communicated with the middle of the condenser pipe, solvent steam is prevented from contacting the extracting pipe, the extracting pipe is prevented from being affected by heat brought by the steam, anda thermo-sensitive matter in the extracting pipe cannot be affected by high temperature; a contact part between the flask and the extracting pipe is changed into the U-shaped elbow disclosed by the invention; in use, the U-shaped elbow can form liquid seal at the bottom by liquid guided into by the siphon, hot steam in the flask cannot pass through the U-shaped elbow, heat cannot be transmitted to the bottom of the extracting pipe, and the thermo-sensitive matter in the extracting pipe cannot be affected by the high temperature.

The invention discloses a rotary oven, which relates to the technical field of household electric appliances and comprises a box body and a partition plate, a heater, a triangular tray and a motor inthe box body. The triangular tray is provided with a circular boss which is rotatably connected with a gear, and the output shaft of the motor is coaxially connected with the gear. The triangular trayis provided with a triangular sliding groove and a circular sliding groove, the circular sliding groove and the triangular sliding groove are cut inside, and the tangent parts are communicated with each other; A support plate is arrange on that triangular tray, a baking plate is arranged on the support plate, two slide blocks are arranged at the bottom of the support plate, a gear ring is arrangeon the outer edge of the support plate, and the gear ring and the gear are meshed with each other; The edge of the triangular tray is hinged with a hinge bar, and the two ends of the hinge bar are respectively provided with a first protrusion and a second protrusion. By using the motor as the power source, the supporting plate and the baking pan move in the oven circumferentially and rotate automatically through the mutual cooperation of the gear and the ring gear, so as to ensure the baking uniformity on the baking pan.

The invention belongs to the field of coke oven maintenance, and in particular relates to a method for replacing bottom bricks of a coke oven carbonization chamber. The method comprises the followingsteps: setting a carbonization chamber adjacent to a coke oven carbonization chamber to be maintained as a buffer furnace, wherein the buffer furnace is used for heat preservation of the coke oven carbonization chamber to be maintained; controlling coke oven machine side standard temperature not lower than 1200DEG C and coke oven machine coke side standard temperature not lower than 1250 DEG C; removing old bricks from the coke oven carbonization chamber to be maintained from the machine side first then the coke side; cleaning the bottom of the coke oven carbonization chamber to be maintainedwith the old bricks removed; paving the coke oven carbonization chamber to be maintained with the bottom cleaned with new bricks, banking up, heating, performing heat preservation for 2 to 3 hours, and finally loading coal to complete the replacement of the bottom bricks of the coke oven carbonization chamber. According to the invention, as the buffer furnace is arranged, and banking up and heating of the furnace are controlled, so that the coke oven machine side standard temperature is controlled not lower than 1200DEG C, and the coke oven machine coke side standard temperature is controllednot lower than 1250 DEG C. When in replacing of the bottom bricks of the coke oven carbonization chamber, the temperature in the carbonization chamber does not obviously drop, and the bottom bricks ofthe coke oven carbonization chamber can be replaced without stopping production of the whole coke oven.

The invention provides an extracting method for lincomycin hydrochloride. The method comprises the steps that S1, a lincomycin fermentation solution is subjected to micro-filtration and nano-filtration, and then a water phase concentration solution is obtained; S2, after the water phase concentration solution is subjected to alkalization treatment, comprehensive flocculation impurity removal is performed, a disc filter performs centrifuging, an alkalization clean solution is extracted by an extraction agent, and an extraction solution is obtained; S3, the concentration solution is concentratedand acidified to be subjected to a reaction for crystallization, and lincomycin hydrochlorid is obtained. Micro-filtration is adopted sequentially for performing solid-liquid separation and nano-filtration of the fermentation solution to obtain the water phase concentration solution, after comprehensive impurity removal, the extraction agent is adopted for extraction, and concentration, acidification and crystallization are performed to obtain lincomycin hydrochlorid. The production process is high in automatic degree, continuous and reliable, the production period is short, and meanwhile theproduct quality is improved.

The invention provides a door body with a high temperature limiting structure and a washing machine. The door body with the high temperature limiting structure comprises an observation window and a frame body which is used for fixing the observation window, the side, where the observation window faces outwards, of the door body is provided with an electron device, and a transparent temperature insulation screen is installed between the observation window and the electron device. According to the door body with the high temperature limiting structure, the observation window installed on the door body is located in the inner side and is in contact with hot air in the washing machine or a clothes dryer, therefore the temperature of the observation window is high, the transparent temperature insulation screen arranged at the outer side of the glass observation window is regarded as an isolation barrier so that the heat energy transferred by the glass observation window to the outside can be lowered, thus the electron device is not influenced by the high temperature and the normal work of the electron device is guaranteed. According to the washing machine, the door body with the high temperature limiting structure is installed, by arranging the transparent temperature insulation screen in the outer side of the observation window and regarding the transparent temperature insulation screen as the isolation barrier, heat energy transferred by the glass observation window to the outside can be lowered, and thus the electron device which is installed at the outer side of the temperature insulation screen is not influenced by the high temperature and the normal work of the electron device is guaranteed.

The invention discloses a biological organic water soluble fertilizer, which comprises following components: dried orange peel, polyglutamic acid, potassium humate, EM biological bacterium, Pu'er tea,and aspirin. The problems that in the prior art, the price of a water soluble fertilizer is high, the lasting effect is short, and the fertilizing performance degrades at a high temperature are solved. Polyglutamic acid, potassium humate, and dried orange peel fermentation water are taken as the raw materials, the cost is reduced effectively, and the fertilizer has a prominent effect.

The invention discloses a new type of LED street lamp, which comprises a lamp pole, a shell, a light-transmitting plate, a connecting pipe, a vacuum pipe, an LED bulb, a mounting plate, a cooling plate, a fan blade, a heat sink, a motor, an output shaft, a semiconductor Refrigeration fins, miniature vacuum pumps, heat dissipation fins, air extraction nozzles, hinges, box doors, springs, filter screens, guide rods, electric push rods, push plates and dust boxes. The invention is simple in structure, novel in design, reasonable in design, and convenient to use; the heat generated by the LED lamp can be dissipated in time through the semiconductor cooling sheet and the fan blade, so that the LED lamp is not affected by high temperature, ensures the lighting effect of the LED lamp, and prolongs the length of the LED street lamp. The service life of the LED street light is reduced, and the maintenance rate of the LED street light is reduced; the negative pressure can be formed in the dust collection box through the micro-vacuum pump, which can effectively absorb the dust in the shell, keep the inside of the shell clean, prevent the LED street light from being damaged, and ensure The normal operation of the road lighting system has a good market prospect and is suitable for promotion and use.