25results about How to "Reduce freezing" patented technology

The invention discloses a biogas fermentation purification liquefaction and carbon capture process. The process comprises a biogas fermentation system for performing high-temperature fermentation on biomass; the biogas purification and liquefaction system, the CO2 purification and liquefaction system and the organic fertilizer production system are arranged at the biogas residue output end of the biogas fermentation system to produce organic fertilizer; a thermal energy recovery system; according to the invention, a high-temperature facultative anaerobic hydrolysis and high-temperature anaerobic fermentation process is provided, so that high-concentration biomass biogas is produced; cH4, H2S and CO2 in the biogas are separated and liquefied by adopting a process of'wet process and dry process serial desulfurization, PSA (Pressure Swing Adsorption) + MDEA (Methyl Methanol Ether Alcohol) decarburization, molecular sieve dehydration, single-order two-stage mixed refrigerant compression and propane refrigeration compression ', and produced liquid CH4 and CO2 are recycled; meanwhile, the biogas residues are subjected to a secondary fermentation technology under the action of microorganisms to obtain a solid organic fertilizer; in addition, the solar heat collection and heat pump technology is utilized, and the whole-field heat energy is recycled to supply heat to the biogas fermentation system.

The invention relates to the technical field of press-fit devices, and discloses a press-fit device for integrated circuit board processing, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a support plate, the top of the support plate is fixedly connected with a processing plate, and the top of the bottom plate is fixedly connected with an L-shaped plate I. According to the press-fit device, when the circuit board starts to be pressed, the processing plate is fixedly connected with the L-shaped plate; the first spring can effectively absorb vibration and impact in the pressing process, damage to the circuit board is prevented, uniform pressure distribution can be achieved in the pressing process through the elasticity of the first spring, good contact between the circuit board and the surface-mounted assembly is ensured through the uniformity, and therefore the subsequent welding quality is improved, and the production efficiency is improved. And meanwhile, a first connecting rod drives a first push plate to move leftwards, so that the pressed circuit board is pushed out, and the situation that the pressed circuit board is prone to dislocation due to manual taking of the circuit board, and then the finished product effect of the circuit board is affected is avoided.

The utility model relates to the technical field of asphalt conveying, in particular to an asphalt conveying device for asphalt pavement construction, which comprises a supporting frame, a heating box is mounted at the top of the supporting frame, a conveying belt is arranged in the middle of the supporting frame, and rotating shafts are arranged on the left side and the right side of the conveying belt. One belt pulley is installed at the rear end of the rotating shaft on the left side, a stirring rod is connected to the inner wall of the heating box in an inserted mode, the other belt pulley is installed at the rear end of the stirring rod, and belts are arranged on the outer sides of the two belt pulleys. The asphalt heating device has the beneficial effects that the motor is started to drive the conveying belt to convey heated asphalt, the condition that the asphalt is solidified can be reduced, meanwhile, in the conveying process, the stirring rod is driven to stir the asphalt in the heating box, the auxiliary heating effect can be improved, the asphalt heating uniformity is improved, and the asphalt heating efficiency is improved. Therefore, the conveying and using effects of the asphalt are improved.

The invention provides a photo-thermal nanoparticle, a photo-thermal self-driven hydrophobic anti-icing coating and a preparation method and application thereof, and belongs to the technical field of hydrophobic anti-icing materials. The invention provides a preparation method of photo-thermal nano-particles, which comprises the following steps: mixing a nano-material and tetraethoxysilane under an alkaline condition for hydrolysis, and coating the surface of the nano-material with a silicon dioxide shell to obtain coated nano-particles; and mixing the coated nanoparticles with a silane coupling agent, and carrying out a grafting reaction to obtain the photo-thermal nanoparticles. The preparation method comprises the following steps: by taking a nano material as a carrier, generating a silicon dioxide shell on the surface of the nano material through modification, and then modifying the silicon dioxide shell (carrying out grafting reaction), so that the silicon dioxide shell is grafted with a silane group, and the prepared photo-thermal nano particle has high sunlight absorptivity and super-hydrophobic and super-oleophobic characteristics. The photo-thermal self-driven hydrophobic anti-icing coating is prepared by using the photo-thermal nanoparticles as a main filler and coupling a high-hardness film-forming substance and a related auxiliary agent.

The utility model relates to a tunnel quick-freezing device with an improved mesh belt. The problems that in the background technology, all layers of a tunnel quick-freezing device adopt all-metal conveying net belts, in the low-temperature freezing process, food is frozen to a metal net face, the frozen food is not prone to being separated from the metal net belts, material stripping and conveying of the frozen food are not smooth, or the frozen food and the metal net face are torn to be rigidly separated, and the food cannot be frozen easily are solved. Therefore, the service life of the metal mesh belt is influenced. The key point of the technical scheme for solving the technical problem is that the top layer of each layer of mesh belt is arranged to be a plastic mesh belt, and the other layers of mesh belts are arranged to be metal mesh belts. The method is suitable for processing various quick-frozen foods.

The invention belongs to the technical field of commercial vehicle body corrosion prevention, and particularly relates to a vehicle body coating method and a coating structure used in the low-temperature frigid climate. The coating method comprises the following steps that a vehicle body is pretreated, and an electrophoresis auxiliary electrode is additionally arranged in the vehicle body; performing electrophoresis on the vehicle body to form an electrophoresis layer; spraying protective layers on the bottom of the vehicle body and the inner sides of the skirts; after the automobile body is polished, floating coat is sprayed to form a floating coat layer; after the automobile body is polished, finish paint is sprayed to form a finish paint layer; and hydrophobic paint is sprayed on the outer surface of the skirt of the vehicle body to form a hydrophobic layer. The problem that the anti-corrosion effect of a vehicle body is poor in the cold weather is solved. The protection layer covers the bottom of the vehicle body and the inner side of the skirt edge, the protection effect of the bottom of the vehicle is improved, the problem that the folded edge of the vehicle bottom is prone to rusting is solved, meanwhile, the hydrophobic layer sprayed outside the finish paint layer can make the part not prone to freezing through hydrophobicity, frozen snow on the skirt edge outside the vehicle body in the ice and snow weather environment is reduced, and the service life of the vehicle is prolonged. The corrosion of the snow-melting agent to the skirt edge is reduced.

The novel disc pasting mechanism with the protection effect for the single-face corrugating machine comprises a machine body, a gluing tank is installed on the upper surface of the machine body, a gluing roller is rotationally connected to the inner wall of the machine body, a plurality of glue outlet pipes are installed on one side of the gluing tank and located on the upper surface of the gluing roller, and a protection device is arranged on the lower surface of the machine body. The surface of the protection device is provided with a propelling assembly, the side face of the machine body is provided with a recycling assembly, the protection device comprises a heat insulation plate, the heat insulation plate is fixedly connected with the machine body, and the inner wall of the heat insulation plate is fixedly connected with a heat conduction plate. The machine is protected, corrosion of glue to metal parts at the bottom of the machine body is reduced, the service life of the machine is prolonged, meanwhile, the production environment can be kept clean, potential safety hazards such as slipping and falling risks caused by glue solidification are reduced, and the stability and reliability of the machine are improved.

The utility model belongs to pipeline construction technical field, concretely is a kind of pipeline laying grouting device, including grouting machine body, the grouting machine body is connected with storage hopper, the grouting machine body is fixedly connected with a pair of support column, the grouting machine body is fixedly connected with a pair of support plate, the support column and support plate are fixedly connected, the support plate is fixedly connected with agitator tank, multiple stirring rods are fixedly connected on rotating shaft, can directly mix and put into storage hopper inside raw materials such as cement mortar in use process, reduce the case that it is more troublesome to manually mix or mix after using other instruments again, transfer to storage hopper inside, simultaneously, the control box set on grouting machine body can quantitatively control the dosing outlet to put into storage hopper inside mortar cement, so that the mortar cement not being put continues to be stored in agitator tank and is stirred, reduce the case that mortar cement solidification occurs when the mortar cement in storage hopper is more when putting once.

The invention provides an intelligent bird repelling device for an electric power tower and an automatic system, and belongs to the technical field of bird repelling devices.The intelligent bird repelling device for the electric power tower comprises a bird repelling device body and further comprises a mounting frame located on one side of the bird repelling device body, a rotating plate is rotationally connected to the mounting frame, and a shielding plate is rotationally connected to the end of the rotating plate; a driving mechanism used for driving the rotating plate to rotate is arranged on the mounting frame, a linkage assembly is arranged between the rotating plate and the shielding plate, and the linkage assembly is used for driving the shielding plate to rotate in the same direction when the rotating plate rotates; a plurality of protective covers for covering the driving mechanism and the linkage assembly are arranged on the mounting frame; and a solar panel is arranged on the baffle plate. The driving mechanism drives the rotating plate to rotate upwards, meanwhile, the linkage assembly drives the shielding plate to rotate in the same direction, the rotating plate and the shielding plate shield one side and the upper portion of the bird repelling device body, and the possibility that the rotating shaft of the bird repelling device is frozen is greatly reduced.

The invention discloses a process and a system for recovering products from residual liquid in production of acetylfuran, the system comprises a flushing tank and a flushing condenser, a top gas phase outlet of the flushing tank is communicated with the bottom of the flushing condenser, and the flushing tank and the flushing condenser are of an integrated structure; an outlet liquid phase of the flushing condenser enters a receiving tank, and a gas phase of the receiving tank is connected with a vacuum tank; the vacuum tank gas phase is connected with the vacuum pump through a pipeline, vacuum pump tail gas is connected with the tail gas condenser through a pipeline, and the tail gas condenser is connected with the liquid collecting tank through a pipeline. The process is high in automation degree, a temperature and pressure reducing facility is arranged to adjust steam, and the safety and stability of the scouring and distilling process are improved; and the heat exchanger is arranged to cool circulating water into constant-temperature water, so that the possibility of freezing and blocking of the condenser is reduced while the cooling effect is ensured.

The quick-frozen chicken product storage device comprises a storage box, an upper cover plate, a condensing device, a bushing and an evaporator, an upper cover plate is placed on the upper end face of the storage box, a handle is arranged on the upper end face of the upper cover plate, the handle is fixedly connected with the upper cover plate, and the rear end face of the storage box is fixedly connected with a condensing device. A leakage plate is placed on the lower portion in the storage box and slidably connected with the storage box, and a second partition plate is arranged in the storage box and fixedly connected with the storage box. The food storage cabinet has the advantages that the two storage bins are arranged, and food can be stored to different degrees according to different requirements of users.

The present application relates to the technical field of grease pumps, and in particular to a reciprocating high-pressure grease pump, which includes a pump box, a reciprocating suction module is provided on one side of the pump box, the pump box is provided with an oil inlet and an oil outlet respectively, the oil inlet is connected to a connecting seat, an oil storage tank is provided on the connecting seat, an oil pressure plate is rotatably provided on the top surface of the connecting seat, the pump box is provided with a first driving mechanism for driving the oil pressure plate to rotate, a spiral blade shaft is rotatably provided in the pump box, and the pump box is provided with a second driving mechanism for driving the spiral blade shaft to rotate. The present application has the effect of improving the stability of the oil pumping of a reciprocating high-pressure grease pump.

The utility model provides a ceramic blank slip casting device, and relates to the technical field of ceramic blank processing equipment. Comprising a supporting box body, a stabilizing seat is mounted at the top of the supporting box body, the supporting box body, an auxiliary forming box, a fixing frame and a control panel are arranged, a positioning seat is used for limiting the mounting position of a second driving motor, the influence caused by equipment vibration is reduced, accordingly, internal grouting liquid pretreatment is assisted, the caking condition is reduced, and the stability of the grouting liquid is improved. The mounting top plate and the auxiliary heating bin are reinforced and mounted through two positioning clamping plates, an internal mounting frame is arranged in the mounting top plate to be matched with mounting of a filter plate and a filter screen, equipment in the auxiliary heating bin can be conveniently separated during overhauling, and two supporting rods of the same structure and different lengths are mounted on the side, away from the electric control bin, of the bottom of the fixing frame. And the overall structure is simple and easy to operate, operation is convenient and rapid, the labor intensity of workers is reduced, and meanwhile rapid forming is facilitated during follow-up mold matching.

The invention discloses a portable skin storage and transportation rewarming system for treating and curing burns in batches. The system comprises a liquid nitrogen cryopreservation area, a rewarming area and an intelligent control internet-of-things area. According to the portable skin storage and transportation rewarming system for treating and curing the burns in batches, limiting teeth can be separated from corresponding gears by lifting pull rods upwards, then protection rods can be pulled until racks move into connecting boxes, after the two protection rods are pulled up, then the connecting boxes can be lifted up by means of the protection rods, and therefore the burns can be cured conveniently. After the connecting box and the packaging bag are placed in the constant-temperature water bath box, the pull rod can be pulled to rotate the protection rod to the initial position, and in the process, the distance between the position where the connecting box and the packaging bag are separated from the inner box is close to the position where the connecting box and the packaging bag are placed in the constant-temperature water bath box. Moreover, regional operation is not needed in the transfer process, so that the transfer time is shortened, the condition that the activity of the xenogeneic skin tissue sample in the packaging bag is damaged due to long transfer time is reduced, and the practicability of the device is improved.

The present invention belongs to the field of separation membrane modification, and specifically relates to a PTFE modified separation membrane for fluid purification and a preparation method thereof. The method comprises: 1) taking raw materials and molding them into a precursor membrane; 2) modifying the precursor membrane with an ammonium salt solution to obtain a modified membrane; 3) preheating the modified membrane and performing biaxial stretching and heat treatment, and then performing gas laser etching to obtain a PTFE modified separation membrane. The PTFE modified separation membrane obtained by the present invention presents a three-dimensional network structure, and the contact angle between the surface of the PTFE membrane and water is greater than 155°, and has super hydrophobic properties; the surface of the PTFE modified separation membrane obtained by the present invention has a micro-rough structure, and at the same time, the three-dimensional network structure formed can produce good antifreeze performance and antifreeze aging performance.

According to the salt-corrosion-resistant modified concrete material and the preparation method thereof disclosed by the invention, the emulsion fills tiny pores in concrete through the epoxy resin component of the emulsion, so that the porosity and the water absorption rate of the concrete are remarkably reduced. The epoxy resin forms a compact protective layer after being cured, so that a corrosive medium is effectively prevented from penetrating, and the corrosion resistance of the concrete is enhanced. Meanwhile, the added defoaming agent reduces the generation of bubbles in the concrete in the stirring process, so that the internal structure of the concrete is more uniform and compact, the permeation paths of moisture and corrosive media are reduced, and the durability and stability of the concrete in severe environments such as high humidity, high salinity and freezing and thawing cycle are remarkably improved. In addition, the combination of the basalt fibers and the epoxy resin emulsion further enhances the crack resistance of the concrete, and crack propagation caused by the volume change of the concrete in the freezing and thawing process can be effectively prevented.

The invention relates to the technical field of cloth production, and provides a synthetic leather and cloth combined production line which comprises a rack and a bonding station arranged on the rack, and the bonding station comprises a bonding frame installed on the rack, two pressing rollers rotationally installed on the bonding frame and a cleaning assembly installed on the bonding frame. The cloth and the synthetic leather are arranged between the two pressing rollers in a penetrating manner; the cleaning assembly comprises a first scraping plate, a second scraping plate and a driving part, the first scraping plate is obliquely arranged on the bonding frame and abuts against the pressing roller, and a collecting box used for collecting glue is arranged at the end, away from the pressing roller, of the first scraping plate; the second scraper is slidably mounted on the upper surface of the first scraper, and the driving component is used for driving the second scraper to slide. The synthetic leather and cloth combined production line aims to reduce the situation that glue attached to the surface of a compaction roller enters the surface of synthetic leather / cloth.

This invention discloses an integrated device and method for a solid-state storage tank-heat exchanger with built-in phase change, belonging to the field of low-temperature phase change energy storage. The invention arranges heat exchange components in the solid carbon dioxide phase change region within the storage tank body to reduce external heat exchange thermal resistance and improve phase change heat exchange efficiency. During the energy storage stage, liquid carbon dioxide is atomized or jetted through a solid generation injection component, partially becoming gaseous and partially solid, with the carbon dioxide stored in a solid state within a sealed space. During the energy release stage, liquid carbon dioxide is injected into the storage tank body and mixes with solid carbon dioxide to form a slurry. The inlets and outlets of the energy storage and energy release stages are staggered to form different intake areas, improving multiphase mixing and intake stability. This invention can be applied to solid-state carbon dioxide low-temperature phase change energy storage, in-tank heat exchange enhancement, closed-loop carbon dioxide recycling, cold energy re-condensation during the energy release stage, industrial waste heat coupled power generation, renewable energy consumption, and distributed long-term energy storage.

The utility model relates to the technical field of crystal resonators, in particular to a glue stirring machine for crystal resonator production, which comprises a tank body and a heating device, a servo motor is arranged on the upper surface of the tank body, a driving end of the servo motor is fixedly connected with a stirring rod, the heating device is arranged on the surface of the tank body, and the heating device comprises a water inlet pipe. The water inlet pipe is fixedly connected with the tank body, the inner wall of the tank body is provided with a cavity, one end, close to the water inlet pipe, of the tank body is fixedly connected with a water pump, the water outlet end of the water pump is communicated with the cavity, the water inlet pipe is communicated with the cavity, and the water outlet end of the water pump is fixedly provided with a valve. The stirring process is guaranteed to be smoothly carried out, the glue is maintained at a proper temperature, stable physical and chemical properties such as viscosity and fluidity of the glue are ensured, and stirring is more uniform, so that the quality of the glue in crystal resonator production is improved, and key indexes such as sealing and electrical performance of a final product are guaranteed.

The utility model relates to an anti-solidification cutting device for a molten salt pump, which comprises the molten salt pump, a first pipeline and a second pipeline, the first pipeline and the second pipeline are communicated and connected in an L-shaped structure, the end part of the second pipeline is connected to a feed port of the molten salt pump, and a first cutting mechanism for cutting molten salt materials is arranged in the first pipeline; a ring seat A is arranged in the first pipeline and located between the first cutting mechanism and the second pipeline, first cutting blades are fixed to the peripheral wall of the ring seat A in an array mode, and a driving mechanism is arranged on the second pipeline. The first cutting blades and the second cutting blades are driven by the driving mechanism to rotate, molten salt materials flowing through the cutting blades can be cut respectively, the molten salt materials are further prevented from being solidified, in addition, the rotating first cutting blades and the rotating second cutting blades have the stirring effect, the second cutting blades and the first cutting blades are arranged in a staggered mode, and the cutting efficiency is improved. And therefore, the fluidity of the molten salt material is improved, and the solidification condition of the molten salt material is reduced.

The invention relates to the technical field of CIK cell cryopreservation, in particular to a gel preparation for CIK cell cryopreservation and a preparation method and application thereof. The skin care solution is specifically prepared from sodium hyaluronate, sodium carboxymethyl cellulose, guaiacol, human serum albumin, ornithine, L-proline, low-molecular dextran, dimethyl sulfoxide, 1-aniline, isomaltose oligosaccharide, glutathione, propylene glycol alginate tobramycin, povidone and the balance of water. The skin care solution is prepared from the following raw materials: sodium hyaluronate, sodium carboxymethylcellulose, guaiacol, human serum albumin, ornithine, L-proline, low-molecular dextran, dimethyl sulfoxide, 1-aniline, isomaltose oligosaccharide, glutathione, propylene glycol alginate tobramycin, povidone and the like. The gel preparation provided by the invention can be used for long-time cryopreservation of CIK cells, and the survival rate of immune cells can still reach 96.4% after the CIK cells are preserved for 12 months.

The invention discloses a cold region rural pit latrine excrement and urine ecological treatment device, and particularly belongs to the technical field of excrement and urine treatment.The cold region rural pit latrine excrement and urine ecological treatment device comprises a squatting pan, a driving assembly, a powder blowing assembly and an excrement and urine isolation assembly.The two sides of the squatting pan are provided with liftable anti-skid pedals, and the middle of the squatting pan is provided with a concave excrement bin; the powder blowing assembly is arranged at the bottom of the squatting pan and communicated with the excrement bin, the powder blowing assembly is connected with the driving assembly, the driving assembly is arranged on the squatting pan, and the excrement and urine isolation assembly is arranged on the excrement bin and connected with the anti-skid pedal. Through cooperation of the driving assembly and the powder blowing assembly, biomass powder such as charcoal powder and straw powder is mixed with excrement, so that peculiar smell is relieved, mixed fermentation is facilitated, meanwhile, excrement and urine can be collected through the excrement and urine isolation assembly in the using process, the excrement and urine are collected into the excrement and urine collection device, the peculiar smell is relieved, and follow-up collection treatment is facilitated.

The utility model discloses a liquid fuel synergistic reactor, which relates to the field of liquid fuel, and comprises a placing pipe, one end of the placing pipe is provided with a fuel inlet pipe, the other end of the placing pipe is provided with a fuel outlet pipe, the inner top of the placing pipe is provided with a magnetic crack reaction mechanism, and the magnetic crack reaction mechanism is connected with the fuel inlet pipe. A catalytic reaction mechanism is arranged at the inner bottom of the placing pipe, the catalytic reaction mechanism is connected with the fuel discharge pipe, and a transmission pipe is arranged between the magnetic crack reaction mechanism and the catalytic reaction mechanism for connection. By arranging the placing pipe and utilizing the special property of a magnet in the magnetic crack reaction mechanism and the reasonable position intersection of a positive pole and a negative pole, the molecular composition of liquid fuel is more active, the solidification condition of the liquid fuel is reduced, and meanwhile, metal ions in the liquid fuel are adsorbed out through the magnetic crack reaction mechanism; load generated when liquid fuel flows is reduced, and transmission efficiency of the liquid fuel is improved.

This invention discloses a multivariate collaborative optimization system for industrial circulating water flow for freezing protection of liquid alkali storage tanks, relating to the field of liquid alkali storage tank freezing technology. First, it collects thermal flow infrared images of the liquid alkali storage tank surface and pipe nodes, flow sensor data, and environmental temperature and humidity parameters to construct a multivariate dynamic feature matrix. Then, it extracts freezing sensitivity indicators for each key node to construct a topological map of thermally vulnerable areas. By performing time-series clustering of node flow velocity fluctuations, a freezing conduction probability weight map is generated. Next, the weight map is embedded into the circulating water network optimization objective function, and an improved particle swarm optimization algorithm is used to output the target flow rate of each branch. Based on this, the variable frequency operation parameters of the circulating pump are calculated to drive the hydraulic system adjustment. When the freezing critical value approaches, a micro-circulation heat exchange mode is automatically triggered. This invention can achieve accurate prediction and proactive response to freezing risks, improving the safety and energy efficiency of liquid alkali storage tank operation in winter.

The invention relates to the related technical field of concrete pump trucks, and discloses a dragging type multifunctional concrete pump truck which comprises a pump truck body, an annular plate is fixedly arranged in the pump truck body, a stirring barrel is rotatably arranged on the inner side of the annular plate, a stirring assembly is arranged in the stirring barrel, and a pump body is fixedly arranged on the lower side of the pump truck body. An annular frame is fixedly arranged in the pump truck body, a plurality of through openings are formed in the interior of the annular frame and the interior of the stirring barrel in a mutually connected mode, a connecting pipe is arranged at one end of the pump body and the interior of the annular frame in a connected mode, and a conveying pipe is arranged at the other end of the pump body. First stirring rods rotate to drive first stirring plates to rotate so as to adjust the stirring angle, concrete in the stirring barrel can be further stirred uniformly, two adjacent first stirring plates rotate, two moving plates are far away from each other, a plurality of first stirring blocks slide out of second stirring plates, and the stirring efficiency is improved. The stirring contact area is enlarged, and the concrete stirring effect is improved.