16results about How to "Reduce carbonization" patented technology

The invention belongs to the technical field of solid waste recovery systems. The system comprises a cracking furnace, and the discharging end of the cracking furnace is connected with a sealing structure; the sealing structure comprises a first sealing cover and a second sealing cover, the second sealing cover is rotationally arranged on a discharging port of the cracking furnace, the first sealing cover is arranged at the end of the discharging port, the first sealing cover and the second sealing cover can be movably connected in an inserted mode relatively, and a driving mechanism is arranged on the outer side wall of the first sealing cover and the outer side wall of the second sealing cover. The driving mechanism drives the sealing cover I and the sealing cover II to move relatively; a sealing body is arranged among the sealing cover I, the sealing cover II and the discharge hole; the discharge hole is in friction rotating connection with the sealing cover I and the sealing cover II through the sealing body; the sealing performance is better, external gas is prevented from entering, carbonization of oil gas is reduced, and the oil extraction rate is increased.

The invention relates to the technical field of offshore wind power generation pipe pile manufacturing, in particular to a welding method of an offshore wind power large and thick steel plate barrel, which comprises the steps of beveling, barrel rolling, preheating, positioned welding, backing welding, inner groove welding, carbon arc air gouging back gouging and outer groove welding. Flame cutting is matched with mechanical milling to manufacture a semi-narrow gap groove, the sectional area of the groove is improved, the semi-narrow gap submerged arc automatic welding process is achieved, and the welding efficiency is improved. Due to the V + U-shaped design of the inner groove, the good fusion ratio of the root is guaranteed, and the defects of incomplete penetration and hot cracks of the root are reduced; and the back gouging depth of an outer side welding seam is reduced, the labor intensity of an operator is reduced, the mechanization degree is improved, carbonization of a base metal groove is reduced, and the internal welding quality is improved. The V + U-shaped groove form is easy to weld, the groove is regular, and the appearance is attractive; compared with a traditional V-shaped groove, the angle of the V + U-shaped groove is smaller, the filling amount of welding materials is reduced, and the production cost is saved.

The invention discloses a remote control intelligent circuit breaker which comprises a shell, a connecting rod is installed in the shell, a knife switch is installed on the side wall of the connecting rod, a baffle is vertically installed at one end of the connecting rod, a tension spring is installed on the side, away from the connecting rod, of the baffle, and the end, away from the baffle, of the tension spring is welded to the inner wall of the shell. An eccentric wheel is installed at the end, away from the baffle, of the ejector rod, an opening and closing motor is installed on an input shaft of the eccentric wheel, and the shortest distance between the ejector rod and the baffle is equal to the shortest distance between the baffle and the inner wall of the shell. The opening and closing motor, the electromagnetic counter, the wireless receiver, the wireless transmitter, the GPS module, the TF card slot and the display screen are electrically connected with the control key, the control key is electrically connected with an external power supply, and protective covers are mounted on the outer sides of the display screen and the control key. According to the invention, the circuit breaker can be conveniently maintained and replaced, and the service life of the circuit breaker is strictly controlled.

This utility model discloses a TPE hollow wire heating hose, belonging to the technical field of heating hoses. The TPE hollow wire heating hose includes a tube body, with a stainless steel tube fixedly installed on the surface of the tube body. A temperature sensor is detachably installed inside the stainless steel tube. A snap-fit ​​mechanism is fixedly installed inside the stainless steel tube, and a limiting mechanism is fixedly installed on the surface of the stainless steel tube. The main body of the tube is made of Teflon tubing, which has good flexibility and high-temperature resistance, reducing carbonization. The outer layer of the Teflon tubing uses four layers of steel wire braided mesh to ensure the working pressure of the hose. The outer layer of the steel wire braided mesh uses four layers of thermal insulation cotton, which has good insulation and uniform heat conduction. The snap-fit ​​mechanism connects the stainless steel tube and the temperature sensor. During replacement, the snap-fit ​​plate can be removed from the snap-fit ​​groove without affecting the sealing performance. The limiting mechanism limits the snap-fit ​​plate, allowing the temperature sensor to operate for extended periods.

The invention discloses a preparation method of a pyrazole intermediate, which comprises the following steps: respectively introducing a glycerol aqueous solution and a concentrated sulfuric acid solution containing a catalyst into a microchannel reactor for reaction to obtain the pyrazole intermediate, and the pyrazole intermediate comprises 3-hydroxypropionaldehyde and acrolein. According to the preparation method of the pyrazole intermediate, based on the efficient heat exchange performance of the microchannel reactor, the reaction time can be obviously shortened, and adverse phenomena such as back-mixing, carbonization and violent heat release in the reaction process can be prevented, so that the yield of the pyrazole intermediate is increased, and the production efficiency of the pyrazole intermediate is greatly improved.

The application discloses a portable bipolar cold cycle ablation device and an ablation needle, which comprises a handheld main body, an energy application unit, a cold cycle unit, an energy supply unit and a circulating refrigeration unit. The energy application unit is fixedly arranged on the outside of the handheld main body, and the cold cycle unit is arranged in the inside of the energy application unit. The energy application unit can be moved to the target tissue together with the handheld main body. The energy application unit comprises at least one first energy application element and at least one second energy application element. The cold cycle unit comprises a fluid circulation channel extending from the proximal end of the energy application unit to the distal end and returning from the distal end to the proximal end. The fluid circulation channel is provided with an insulation part on the channel wall of at least the part extending into the first energy application element and / or the second energy application element. The circulating refrigeration unit is in circulation communication with the first liquid inlet and the first liquid outlet at the proximal end of the fluid circulation channel, and is used for driving the fluid circulation flow and refrigerating the fluid circulation flow.

The invention discloses a wireless intelligent circuit breaker which comprises a shell, a connecting rod is installed in the shell, a first rack and a second rack are vertically installed on the side wall of the connecting rod, a first gear is installed on one side of the first rack, and a gear shaft is installed on one side of the first gear. A transmission wheel is meshed with the position, corresponding to the first gear, of the gear shaft, a second gear is installed at the position, close to the second rack, of the gear shaft, an electromagnetic counter is installed at the bottom end of the second gear, a lock hook rod is installed at the end, away from the baffle, of the connecting rod, and an over-current release and an under-voltage release are installed at the bottom end of the lock hook rod. A magnet rod is installed on the side, close to the second gear, of the gear shaft, and a Hall element capable of inducing magnetic field changes is installed in the electromagnetic counter. According to the invention, the insulating oil can be quickly replaced, carbonized and aged substances and moisture in the oil can be reduced, conductive substances are prevented from being contained, and the hidden danger of fire caused by short circuit is greatly reduced.

The invention discloses a manufacturing and finishing method and device for a metallic bond grinding wheel, and relates to the related field of grinding wheel manufacturing and finishing. By adopting the micro-vibration auxiliary dressing process, the dressing force is reduced through high-frequency micro-vibration, the surface defects and particle damage of the grinding wheel are reduced, and the dressing precision and the surface smoothness are improved; by combining an automatic cooling and detecting system, efficient, safe and intelligent operation is achieved, meanwhile, it is ensured that diamond particles are evenly exposed, the cutting performance of the grinding wheel is greatly improved, the service life of the grinding wheel is greatly prolonged, and the requirement for batch production is met; the outer side of the grinding wheel is efficiently cleaned in the dressing process, the adjusting mechanism is arranged at the bottom and driven by a motor and an air cylinder, height adjustment and plane position adjustment of the lifting mechanism can be achieved under driving, efficient and rapid adjustment can be conveniently conducted in the dressing process, and the working efficiency is effectively improved.

The utility model discloses a fireproof real wood veneer, and particularly relates to the technical field of wood veneers, the fireproof real wood veneer comprises a wood veneer main body, a nanometer fireproof coating is sprayed on the outer end face of the wood veneer main body, a supporting mounting plate is arranged on the outer side of one end of the wood veneer main body, and a concave mounting groove is formed in the end face of one side of the supporting mounting plate; a limiting mounting plate is arranged on the supporting mounting plate and located on one side of the concave mounting groove, a heat insulation mounting plate is arranged in the concave mounting groove, and a wood veneer base layer plate is arranged on the outer portion of the end, away from the supporting mounting plate, of the heat insulation supporting plate. In the actual use process, under the state that the supporting installation plate, the concave installation groove, the limiting installation plate and the heat insulation supporting plate are correspondingly arranged, adhesive is smeared at the attaching position of the concave installation groove and the heat insulation supporting plate, and the firm strength of connection between the heat insulation supporting plate and the supporting installation plate can be effectively improved; meanwhile, the supporting mounting plate and the heat insulation supporting plate are made of materials.

This invention discloses a refrigerator compressor driving method, a variable frequency compressor, and a refrigerator. The method includes acquiring a compressor start command and the sequence of the compressor's previous energization phases, and then energizing the compressor stator according to the sequence of the compressor's previous energization phases to control the compressor rotor to start from the initial position. Since the energization of the compressor stator is based on the sequence of the compressor's previous energization phases, controlling the compressor start-up by changing the energization sequence of the compressor stator each time can reduce compressor coil carbonization, increase positioning current capability, improve compressor start-up performance, and extend the compressor's service life.

The utility model discloses a kind of microwave ablation needles, it is related to medical instrument technical field;To solve the problem that existing microwave ablation needle is used, coaxial cable for transmitting microwave energy is higher in heat when working, cannot be cooled better heat dissipation, carbonization of tissue is serious in ablation process, the following technical scheme is proposed: a kind of microwave ablation needle, including outer needle tube, needle head, antenna terminal, coaxial cable, needle head is fixed with outer needle tube by screw thread connection mode, outer needle tube is hollow circular tube structure, inside is provided with water channel and antenna terminal, water channel includes first pipeline and second pipeline, after first pipeline and second pipeline are connected and fixed, it is set with the outside of coaxial cable.This utility model can effectively carry out microwave ablation treatment, reduce needle head temperature when using, monitor temperature change in real time.

The utility model discloses a blowing type heating fuel furnace which comprises a furnace base, a first conical cap fixedly arranged at the top of a furnace cylinder, an isolation frame fixedly arranged at the bottom of a second conical cap, a hot interlayer frame fixedly arranged on the outer side of the isolation frame, a hot runner formed in the inner wall of the hot interlayer frame, and an air outlet pipe fixedly communicated with the top of an air blower. One end of the air outlet pipe penetrates through an air inlet formed in one side of the isolation frame and is fixedly communicated with the hot runner, a heat outlet frame is arranged between the furnace shell and the furnace base, and warm air holes are formed in the two sides of the heat outlet frame. Meanwhile, air is blown into the hot interlayer frame through the air blower and the air outlet pipe, air is exhausted through the hot runner and the U-shaped air guide pipe, the heat utilization rate is greatly increased, meanwhile, the oxygen inlet channel and the smoke exhaust channel of the furnace barrel are isolated through the isolation frame, and therefore clean hot air without being doped with dust and impurities can be obtained.

The invention discloses a low-cost high-stability hydroquinone hydrogenation catalyst and a preparation method thereof. The catalyst comprises the following components: an active component, a carrier, a sintering aid, a pore forming agent and a lubricant, the active component is any one of Ni, Co, Zn, Fe and Cu; the carrier is SiC; the sintering aid is any one or more of Al2O3 (aluminum oxide), SiO2 (silicon dioxide), Y2O3 (yttrium oxide) and silicon-aluminum-based clay; the pore-forming agent is any one or more of bamboo charcoal, silica sol, starch and carboxymethyl cellulose; and the lubricant is glycerol. The invention also provides a preparation method of the low-cost high-stability hydroquinone hydrogenation catalyst. According to the catalyst and the preparation method thereof provided by the invention, the prepared silicon carbide loaded multi-metal catalyst has good thermal conductivity, good chemical stability and excellent mechanical properties, and the problems of carbonization and sintering caused by loss of active components of the catalyst and slow heat transfer of the catalyst are greatly reduced.

The utility model discloses a novel acetylene cleaning system and belongs to the technical field of acetylene preparation in polyvinyl chloride production. The device comprises a tower body, the bottom of the side part of the tower body is communicated with an acetylene inlet pipe, the top of the tower body is communicated with an acetylene outlet, the top of the side part of the tower body is communicated with a 98% acid inlet of a tower plate, a filler layer is fixedly connected inside the tower body, and the bottom of the side part of the tower body is communicated with a circulating acid structure. A baffling structure is fixedly connected in the tower body, the top of the side part of the tower body is communicated with an intermediate acid circulating structure, the top of the side part of the tower body is communicated with a tower plate acid inlet, the baffling structure comprises a partition plate fixedly connected in the tower body, and a first strip-shaped bubble cap layer located at the bottom of the partition plate is fixedly connected in the tower body. In order to reduce the carbonization phenomenon, a baffling structure is designed into a strip-shaped channel and a liquid channel is designed into a baffling form by utilizing a cleaning system through process calculation and equipment form optimization, so that the concentration of a liquid phase part is uniformly reduced in a gradient manner, and a plurality of paths of intermediate acid return pipes are additionally arranged.

The invention relates to a pressurizing and weight-reducing screw rod which comprises a pressurizing screw rod, a screw rod head group is connected to the front end of the pressurizing screw rod through threads, a non-return ring and a meson are arranged in the screw rod head group, the rear end of the pressurizing screw rod is connected with a feeding screw rod through threads, a material pipe is arranged on the outer circle of the pressurizing screw rod group, and a pressurizing cylinder is coaxially arranged in an inner hole in the front end of the material pipe. A flange is installed on the coaxial front end face of the material pipe, the pressure cylinder is coaxially located between the flange and the material pipe, the flange and the material pipe are locked through screws, and therefore the pressure cylinder is fixed, the flange is coaxially provided with a nozzle in threaded connection, the size of a coaxial middle hole in the front end of the material pipe is consistent with that of a flange feeding port, and the size of a flange discharging port is consistent with that of a nozzle feeding port. According to the pressurizing and weight-reducing screw, the whole screw can be replaced on the basis of not changing a material pipe and a driving device, so that the pressurizing and weight-reducing screw is suitable for injection molding of different doses, and the cost is greatly saved.

The invention discloses a method for preventing carbonization of a concrete structure and the concrete structure. The method comprises the following steps: 1) before concrete is poured, longitudinally winding or vertically fixing one or a plurality of outer leads on a reinforcement cage; and (2) in the concrete pouring process, the outer lead is exposed in the air, the part, making contact with the air, of the outer lead can absorb liquid preventing concrete carbonization in the environment, and the liquid is conveyed into the reinforced concrete structure through the track of the outer lead. By winding or fixing the water-absorbable outer lead in the reinforcement cage of the concrete and introducing the liquid capable of preventing concrete carbonization, namely the composite solution of water and citric acid, the internal humidity of the concrete is improved, the internal pore structure of the concrete is weakly acidic, and the diffusion of CO2 in the concrete is inhibited, so that the aim of improving the carbonization resistance of the concrete is fulfilled, and the service life of the concrete is prolonged. Therefore, the problem of structural deterioration caused by carbonization is reduced.