606 results about "Dehydration" patented technology

The invention discloses a catalyst used for preparing acrylic acid and butyl ester by the dehydration of butyl lactate and a preparation method thereof. The catalyst is a composite catalyst, comprising a main catalyst A and auxiliary catalysts B, C, D and E, wherein, A is calcium sulphate, B is sulphuric acid, C is phosphate, D is alkaline matter and E is promoter. The preparation method comprises the steps as follows: five compositions A, B, C, D and E are sufficiently mixed, baked for 2-10 hours at the temperature of 200-800DEG C and formed for standby. The catalyst has high catalytic activation; under the catalysis of the catalyst, the molar yield reaches 75.1 percent and the molar selectivity of the acrylic acid and butyl ester reaches 71.5 percent. The preparation method has the advantages that the crystal structure of the main catalyst can be improved so as to be beneficial for carrying out the reaction; and the introduction of different auxiliary catalysts and quantities is helpful to improve the conversion ratio of the raw material and the product selectivity and is beneficial for improving the strength of the catalyst.

The invention relates to a gas nanometer purification method and a purifier, and the method comprises the following steps: gas to be cleaned enters a gas-water separator for gas-liquid separation and coarse filtration, liquid impurities and large-particle solid impurities in the gas are removed, and preliminarily purified gas is obtained; on the basis of switching logic, the preliminarily purified gas is alternately conveyed to two adsorption unit groups for deep adsorption purification, adsorbent dehydration treatment and fine dust interception treatment are sequentially completed in the adsorption units, and clean gas is obtained; one part of the clean gas is conveyed to the gas storage bin to be stored, and the other part of the clean gas is conveyed to the regeneration gas bin to be pre-stored for regeneration cycle of the subsequent adsorption unit. Through the integrated method design of continuous adsorption working conditions, online regeneration cycle and automatic pressure equalizing switching, seamless connection of adsorption and regeneration and uninterrupted gas supply in the whole process are achieved, gas supply interruption and severe gas pressure fluctuation are effectively avoided, and the strict use requirements of precise manufacturing, automatic production lines and continuous production scenes for stable gas sources can be met.

The present application provides a laundry treating apparatus, comprising at least two sets of tub assemblies capable of treating laundry independently and a power mechanism for providing power to the at least two sets of tub assemblies, at least one of the sets of tub assemblies is provided with a transmission wheel in transmission connection with the power mechanism. The laundry treating apparatus further comprises a shifting mechanism capable of moving the transmission wheel along an axial direction to put the transmission wheel in transmission connection with at least one of an input shaft and an input shaft sleeve of the set of tub assemblies for transmitting power to the set of tub assemblies or to disconnect the transmission wheel from the input shaft and the input shaft sleeve to stop the transmission of power. In the present application, the power mechanism can drive the at least two sets of tub assemblies to rotate, ensuring that the two sets of tub assemblies can perform washing or dehydration procedures, effectively overcoming the defect that the two sets of tub assemblies in the prior art cannot simultaneously perform washing or dehydration operations.

This utility model discloses a dehydration device for processing surimi products with a cooling function, relating to the field of surimi processing technology. Addressing the problem in the prior art that it can only cool the surimi in contact with the extrusion plate at a time, failing to cool the surimi in other areas and thus having low practicality, the following solution is proposed: A support mechanism is included, comprising a support frame and an arc-shaped collecting plate welded to the lower inner wall of the support frame. An installation assembly is provided on the support frame, comprising a dustproof cylinder with several drainage holes on its bottom outer wall and two fixing rings welded to the inner walls of both ends of the dustproof cylinder. A conveying assembly is provided inside the dustproof cylinder, comprising a conveying cylinder fixed within one of the fixing rings and a fixing ring bolted to the outer wall of the conveying cylinder flange. This utility model can continuously and adequately cool the surimi, preventing some surimi from failing to cool, thus improving practicality.

The utility model relates to the technical field of anti -burning oil regeneration, specifically is a kind of anti -burning oil regeneration system, including pipeline and dehydration device and regenerator that are sequentially communicated on pipeline, still include temperature control assembly between dehydration device and regenerator;The temperature control assembly includes self-limiting temperature electric heat tracing band that is wound on the outer wall of pipeline, pipeline radiator and pipeline thermometer that are communicated on pipeline, and pipeline thermometer is located at the pipeline inlet of regenerator.This system sets temperature control assembly on the inlet pipeline of regenerator, utilizes the cooperation temperature control of pipeline radiator and self-limiting temperature electric heat tracing band, ensure that anti -burning oil is in proper temperature zone when entering regenerator, avoid the regeneration effect of the fluctuation of oil temperature from good to bad, guarantee the stability of oil quality after regeneration and the reliability of long-term operation of system.

The utility model belongs to the technical field of medical apparatus and instruments, especially relates to a portable low temperature sealing fresh -keeping device for severed finger preservation, box body, the box body is open -ended lower end closed -type structure, the box body still includes the limiting groove for placing the severed finger, the top cover, the bottom cover makes the bottom cover and the top between the box body form low temperature cavity, the through -hole no. 1 is set up on the lateral wall of box body and is connected with low temperature cavity, the top cover includes: the temperature gauge time module is installed in the top cover, the upper sealing ring is installed in the lower end edge of top cover, the water bag and refrigerant medium are placed in the low temperature cavity, the water bag one side is equipped with the easily torn part, is connected with the drawstring on the easily torn part, the drawstring one end passes through the through -hole no. 1 and sets up. The utility model has the beneficial effects that: simple structure is practical, can avoid the frostbite of severed finger, can monitor the preservation temperature in real time and record the time length of preservation, the sealing moisture -proof property is good, can prevent pollution dehydration, and refrigeration is started conveniently and safely, is suitable for the severed finger preservation and the transfer needs.

The utility model relates to dehydration device technical field, and disclose a kind of sound-absorbing board production forming section dehydration device, and realize secondary extrusion dehydration by setting extrusion dehydration device, extrusion structure, suction structure etc., sound-absorbing board is extruded first, and sound-absorbing board is preliminarily extruded by upper roller and lower roller, and free water of board surface layer is extruded surface, and water of board extrusion is sucked by negative pressure inside water-collecting cavity, and it is evenly entered into water-collecting cavity inside by mesh surface, after sound-absorbing board is sucked and rebounded by back tent device, reach the inside of extrusion dehydration device of auxiliary frame A side, again extruded between upper roller and lower roller, and board is compacted to target thickness, simultaneously, water that moves out from core portion when rebounding is fluffy extruded, make negative pressure inside water-collecting cavity through mesh and promptly suck extruded water, wherein containing surface layer and core portion residual free water, and make water distribution even in sound-absorbing board interior, and it has the effect of uniform dehydration.

The application discloses a kind of multiple dehydration large-scale algae recovery equipment, it is related to water treatment technical field, and large-scale algae recovery equipment includes collection mechanism, primary dehydration mechanism and depth dehydration mechanism, collection mechanism and primary dehydration mechanism pipeline communication, depth dehydration mechanism includes outer tube, filter cartridge, inner filter screen and mandrel, outer tube and filter cartridge sliding connection, filter cartridge inside is equipped with inner filter screen, inner filter screen inside is equipped with mandrel, mandrel outer ring diameter increases along the direction of conveyance, filter cartridge inner ring diameter decreases along the direction of conveyance, outer tube inlet end is equipped with inlet pipe, mandrel outer ring is equipped with external thread, inlet pipe outlet inserts filter cartridge inlet end, filter cartridge and mandrel make the pressure that algae receives gradually increases.The application improves the recovery efficiency of algae by multiple dehydration treatment, uses variable-diameter structure to realize the natural increase of pressure, and releases the moisture wrapped inside algae by vibration motor, realizes depth dehydration, improves the dehydration efficiency of algae by the combination of vibration and squeezing.

The application discloses a method and system for preparing polyether ether ketone (PEEK) resin by a step-by-step method. The method comprises negative pressure salt dehydration, positive pressure monomer addition and polymerization. In the negative pressure stage (‑0.06~‑0.09 MPa, 120~160℃), water is removed efficiently; in the positive pressure stage (0.05~0.14 MPa), 4,4'-difluorobenzophenone is added and polymerized at 280~320℃. The system is equipped with double condensation reaction towers and an intelligent control system, realizing alternating dehydration and continuous production. The method does not need to add water-carrying agents, effectively inhibits monomer volatilization and hydrolysis, and can stably prepare high-performance PEEK resin with high molecular weight (30,000~50,000 g / mol) and narrow distribution (PDI≤2.0).

The application discloses a kind of low dielectric high-strength phosphate-based geopolymer and preparation method thereof.The preparation method includes the following steps: (1) acid activator pretreatment: phosphoric acid solution is mixed with water to carry out ion balance treatment, and fully ionized pre-equilibrium acid activator is obtained;(2) mixed pulping: siliceous raw material is mixed with the pre-equilibrium acid activator, the molar ratio of P / Al is controlled to be 0.6-1.2, and uniform geopolymer slurry is obtained by stirring;(3) forming and curing: the slurry is cast into shape and cured, and an Al-O-P covalent bond dominated network skeleton is constructed to obtain a green geopolymer;(4) dehydration treatment: the green geopolymer is subjected to dehydration treatment.The application effectively solves the problems of high loss, easy moisture absorption and mutual exclusion of strength and dielectric properties of inorganic cementing materials at high frequency, and is suitable for 5G / 6G high-frequency communication, radar wave-transparent, electronic packaging and intelligent building fields.

The disclosed method for recovering N-methyl pyrrolidone from complex waste liquid includes the following processes: pumping the NMP-containing waste liquid into a rectification one-effect tower after vacuum dehydration in a dehydration tower, condensing and collecting NMP at the top of the tower, and pumping the tower bottom into a rectification two-effect tower; obtaining NMP at the top of the rectification two-effect tower, sending the liquid residue to a depolymerization reactor after evaporation of the gas phase in a thin film evaporator, and condensing and condensing; performing side line extraction on the rectification two-effect tower and injecting sulfolane to extract heavy components, separating after mixing, returning the light phase to the rectification two-effect tower, and sending the heavy phase to a regeneration tower; collecting NMP-water azeotrope at the top of the regeneration tower to return to the dehydration tower, collecting sulfolane at the side line to return to the extraction cycle, and sending the concentrated residue at the bottom to the depolymerization reactor; sending the depolymerization gas obtained from the depolymerization reactor to a quenching tower, sending the cooling liquid of the quenching tower to a light-removing tower, sending the overhead product of the light-removing tower to sewage treatment, and collecting NMP at the tower bottom. The recovery treatment method has reasonable and efficient process flow, and has higher NMP yield for complex NMP-containing waste liquid.

The present application provides a coke level intelligent monitoring and automatic control system in a saturated steam environment, relates to the field of petrochemical industry, and comprises a dehydration bin, a data acquisition module and a data transmission module; the data acquisition module comprises a laser radar level gauge and an infrared thermal imaging monitor; the laser radar level gauge is fixedly connected to the top end face of the inner side of the dehydration bin; the infrared thermal imaging monitor is arranged on the opposite side of the feed inlet; an equipment execution module is connected to the data transmission module; the equipment execution module comprises an intelligent grab bucket mechanism; the intelligent grab bucket mechanism is arranged at the top end of the inner side of the dehydration bin; an electric sliding block is slidably connected to an electric sliding rail, so that the coke level, water level, flow state and coke form can be captured in all dimensions, the limitation of traditional single parameter monitoring is broken, and comprehensive and reliable data support is provided for subsequent control decision; and the problem that the operator cannot observe the discharging condition of the coke tower bottom chute and cannot timely adjust the coke beating operation due to the steam diffusion in the dehydration bin is solved.

The present application relates to the field of environmental monitoring, and more particularly to a dehydration onion drying environment real-time monitoring method based on multi-sensor fusion, the method comprising: obtaining multi-dimensional environment data of a sub-region in a drying chamber; calculating spatial dispersion index, state change vector and dynamic consistency index at the current time; calculating an adaptive adjustment coefficient based on the environmental entropy change index, using the adaptive adjustment coefficient to modify the parameters of the Kalman filter, filtering and denoising the normalized state vector to obtain a denoised state vector; determining an operation deviation vector and calculating a local sensitivity enhancement eigenvalue; splicing the denoised state vector and the local sensitivity enhancement eigenvalue to construct an augmented vector, inputting the augmented vector into an anomaly detection model to obtain an anomaly score, and if the anomaly score exceeds a preset threshold and lasts for a preset period, an alarm is triggered. The present application improves the accuracy of early anomaly detection in the drying process.

The application belongs to the technical field of starch chemical modification, and particularly relates to a preparation method of acetylated distarch phosphate. The method comprises the following steps: mixing starch with a deep eutectic solvent composed of choline chloride, glycerol and a small amount of water, adding a phosphate crosslinking agent and a delayed-release alkalizing agent for crosslinking reaction after pH adjustment, performing acetylation reaction by adding acetic anhydride or vinyl acetate after cleaning by alcohol solvent replacement, and finally obtaining the product through neutralization, washing, dehydration and drying. The process utilizes the deep eutectic solvent to control water activity and particle structure, and combines the slow-release alkali source to maintain a stable reaction environment, so that the crosslinking and acetylation are uniformly carried out, and the side reactions and residual salt load are effectively reduced. The obtained acetylated distarch phosphate has stable substitution degree, uniform particle structure and excellent performance in freeze-thaw stability, and is suitable for multiple fields such as papermaking, textile and oil field additives.

This invention discloses a buffer separation device for a gas compressor, belonging to the technical field of separation devices. The device includes a separation tank, a centrifugal assembly, and a recovery assembly. This solution utilizes baffles to stabilize and redirect the centrifuged gas flow, achieving inertial sedimentation of medium-sized droplets. The gas flow, which may contain sputtered liquid mist, is then collected and treated. At the sharp bend in the recovery pipe, tiny droplets generated by sputtering impact the outer wall of the bend due to inertia and are firmly adsorbed and locked by adsorption strips, thus achieving final collection of secondary contaminants and ensuring extremely high dryness of the outlet gas. Simultaneously, the adsorbed liquid can be automatically heated and evaporated and discharged during shutdown, restoring the gas to its original condition. The water-absorbing ring for collecting fluid from the wall is equipped with a squeezing assembly driven by a wave-shaped abutment groove, enabling periodic squeezing and dehydration, fundamentally consolidating the long-term effectiveness in solving the secondary entrainment problem and ensuring consistently stable separation performance.

The present application relates to the technical field of distiller's grains dehydration, and provides a distiller's grains resource utilization equipment and a dehydration method, which comprises a rack, a conveying part arranged on the rack and used for conveying distiller's grains, and a plurality of extrusion assemblies arranged on the rack along the conveying direction of the conveying part, wherein the extrusion assemblies have extrusion spaces, and the conveying belt of the conveying part carries the distiller's grains through the extrusion spaces; each extrusion assembly comprises a first linear driving part arranged on the rack, an extrusion part arranged on the driving end of the first linear driving part and having adsorption holes, and a sealing cover slidingly arranged on the extrusion part, wherein the sealing cover abuts against the conveying belt after moving, and the conveying belt, the sealing cover and the extrusion part form an extrusion cavity. Through the above technical scheme, the problem that the solution collected by directly pressing the distiller's grains in the related art is not complete, which leads to difficult cleaning of the equipment after use and incomplete cleaning that easily causes the solution to deteriorate and affects the product quality is solved.

The application discloses a kind of dehydration and recycling method of electrolytic manganese dioxide leaching residue, it is related to the field of hydrometallurgy and chemical solid-liquid separation technology.The method is aimed at the technical problems of low dehydration efficiency, insufficient manganese element recovery and high comprehensive energy consumption in the prior art, after neutralization and composite flocculant flocculation of leaching solution, multi-stage electric field treatment is carried out in turn, including applying alternating electric field in the sedimentation tank for pre-aggregation, applying direct current electric field in plate and frame filter press for pressure filtration dehydration and applying pulse electric field before unloading for deep dehydration, finally unload filter cake and collect filtrate.The method is mainly used for efficient dehydration of leaching residue in the production process of electrolytic manganese dioxide and maximization of manganese resource recovery, to realize energy saving and emission reduction and resource recycling.

The present application belongs to the field of metal wire cleaning, and provides a cleaning and passivation method for special-shaped copper wire with grooves and small wire diameter; first, the copper wire is pre-blowed by an annular air knife to remove surface attachments, and is introduced into a groove guide water pipe; then, directional hot water consistent with the groove direction of the copper wire is used for strong flushing, and catechin gel mother liquor is added in the cleaning liquid and a brush is arranged for cooperative brushing; the copper wire is introduced into an ultrasonic cleaning tank for reciprocating deep purification, and the purified copper wire is introduced into a hot air duct arranged in the groove for deep dehydration and guide flow drying; the copper wire is introduced into a passivation chamber provided with an ultrasonic atomizer, and a passivation liquid containing a succinimidazole agent is atomized into uniform fine mist droplets to cover the copper wire; after the copper wire is finally dried by hot air, film formation and solidification are completed, and then the copper wire is wound, effectively solving the problems of difficult cleaning of special-shaped copper wire grooves and uneven passivation film, and improving the surface quality and oxidation resistance of the product.

The utility model discloses a kind of fatty acid isopropyl ester preparation equipment, including for containing esterification kettle containing fatty acid and isopropyl alcohol liquid phase mixture, circulating material guiding system, dehydration and reaction system again, circulating material guiding system includes circulating pump and venturi, circulating pump is communicated with esterification kettle inside, venturi has feed end and discharge end;Feed end is communicated with circulating pump, discharge end is communicated with esterification kettle inside;Dehydration and reaction system again includes gas dehydration device, and the dehydration input end of gas dehydration device is communicated with esterification kettle inside, and the dehydration output end of gas dehydration device is communicated with venturi;By the moisture and part isopropyl alcohol of gas phase state are dehydrated through gas dehydration device, make the gas phase isopropyl alcohol after dehydration under the negative pressure effect of venturi backflow to esterification kettle inside, i.

This application discloses a high-temperature carbonized expandable gel foam and its preparation method, belonging to the field of fire prevention and extinguishing technology. The gel foam consists of 1-10% by mass of an expandable flame-retardant system, 0.81% by mass of a foaming system, 1.385% by mass of a gel system, and deionized water. The expandable flame-retardant system uses phytic acid as the acid source, gelatin as the gas source, and glucose as the carbon source. The foaming system is obtained by compounding lauramidopropyl betaine and alkyl glycosides. The gel system is prepared from sodium alginate, pectin, and L-calcium lactate. Sodium alginate and pectin can form a stable gel network with L-calcium lactate, ensuring the structural stability and long-lasting coverage of the foam at room temperature. In the expandable flame-retardant system, the acid source releases acidic groups at high temperatures, catalyzing the dehydration and carbonization of the carbon source to form a carbon skeleton. The gas source decomposes and produces gas, driving the skeleton to expand into a dense carbon layer, achieving oxygen and heat insulation. This gel foam rapidly covers the coal body at room temperature to isolate oxygen, and expands and retards at high temperatures, achieving the effect of inhibiting spontaneous combustion of coal.

The application discloses a kind of defatted cotton drying devices for water-jet nonwoven fabric, it is related to defatted cotton drying technical field, the device includes dehydration cylinder and upper cylinder, dehydration cylinder is rotatably installed in upper cylinder inside, and the lower end of upper cylinder is fixed with flow guide part;Several drainage holes are opened in the bottom of the sidewall of dehydration cylinder and lower end, and drainage port is opened in the middle of flow guide part;The upper end of dehydration cylinder is rotatably installed with fixed ring, and the side of fixed ring and upper cylinder is fixed with feeding pipe, and the other side of fixed ring and upper cylinder is fixed with discharge pipe, and discharge pipe is connected with pumping end of pumping pump;Air pipe is discharged into upper cylinder by the hot air generated by dryer, and the air flow circulation formed by dehydration cylinder rotation and the diffusion of hot air itself enter the inside of dehydration cylinder through the drainage hole of dehydration cylinder;Partition is arranged between the upper ring and lower ring of the inner wall of upper cylinder, to form multiple relatively sealed areas, and hot air is evenly distributed in each independent area, to ensure that each part of material can be evenly dried, to improve drying quality.

This invention discloses a simulation device for hydrothermal reactions under vacuum chamber dehydration accidents, belonging to the field of vacuum chamber accident simulation technology. The device includes a quartz tube with its opening facing upwards, an induction heating coil wound around its exterior, and a detachably sealed end of the quartz tube via a flange assembly. A water injection pipe extending from the lower end of the flange assembly to above a metal sample is connected to a storage tank. The flange assembly also has an outlet pipe communicating with the inner cavity of the quartz tube, which is connected to a mass spectrometer analysis unit via a liquid nitrogen cold trap. The middle section of the outlet pipe is connected to a vacuum pumping unit via a vacuum pumping pipe. A monitoring unit is located on one side of the quartz tube. This invention integrates vacuum acquisition, induction heating, controllable coolant injection, in-situ monitoring, and online analysis of gaseous products, achieving comprehensive simulation of the high-temperature metal-coolant hydrothermal reaction process under vacuum chamber dehydration accidents. It is suitable for preliminary research on vacuum chamber dehydration accidents in fusion devices, high-temperature high-vacuum furnaces, and other similar applications.

This invention provides a cleaning agent for nitrile coking deposits, its preparation method, and its application, relating to the field of cleaning agent technology. The cleaning agent for nitrile coking deposits of this invention uses adiponitrile and methylglutaronitrile, which have highly similar molecular structures to the coking deposits, as the main solvents, working with ligands, surfactants, and corrosion inhibitors to achieve efficient dissolution and stripping. The preparation method of the cleaning agent of this invention utilizes optimized phase-separation emulsification and dehydration processes to efficiently integrate hydrophilic and lipophilic functional components, producing a stable and homogeneous non-aqueous cleaning agent. The application of the cleaning agent of this invention in cleaning nitrile reactor residues, through closed-loop heating and online diversion filtration processes, can efficiently dissolve and strip coking deposits from the inner walls of equipment and complex pipelines; it achieves simultaneous cleaning, separation, and recovery, significantly reducing hazardous waste generation and ensuring operational safety and stability throughout the process.

The application discloses a method for extracting helium from low-helium-containing natural gas and co-producing ethane, relates to the technical field of helium extraction from natural gas, and specifically relates to a method for extracting helium from low-helium-containing natural gas and co-producing ethane, which comprises the following steps: raw gas decarburization: CO2 in pressurized raw gas is absorbed by activated MDEA solution, and the CO2 content is removed to below 50 ppm; raw gas dehydration and mercury removal: dehydration and mercury removal are performed by using a three-tower isobaric molecular sieve dehydration and mercury removal process, and a purified gas with a water content of less than or equal to 1 ppm and a mercury content of less than 0.01 mu g / m3 is obtained; natural gas helium extraction. The application adopts three external mixed refrigerant refrigeration cycle systems such as a mixed refrigerant precooling process without expansion refrigeration, the system has rich regulation means, can provide matched cold energy for a crude helium extraction process, is flexible in operation, and is good in adaptability to raw materials; the natural gas helium extraction is simultaneously used for co-producing ethane and other light hydrocarbon products, and the energy consumption of a demethanizer gradient multi-stream side line extraction process device is greatly reduced.

This application discloses a system for dehydrating and capturing carbon dioxide from flue gas, belonging to the fields of flue gas treatment and adsorption / absorption technology. The system includes a diversion valve, a heat exchanger, a regenerative regeneration wheel, a hollow dehydration assembly, a gas-liquid separator, a booster pump, a carbon dioxide adsorption device, and a carbon dioxide storage tank. After diversion, the flue gas flows in two streams: one stream enters the regenerative regeneration wheel for adsorption and dehydration, while the other stream passes through the heat exchanger and then enters the regenerative regeneration wheel for regeneration. The treated flue gas then sequentially passes through the hollow dehydration assembly, the gas-liquid separator, and the booster pump before entering the carbon dioxide adsorption device. The captured carbon dioxide is stored in the carbon dioxide storage tank. This system can be used for moisture removal and carbon dioxide capture from flue gas.

This utility model discloses a roasting and dehydration device for corn flake production, including a box body. Support blocks are fixedly connected to the inner walls of both sides of the box body. A material trough is placed on the top of the support blocks. Several heat-conducting holes are opened at the bottom of the material trough, and a heating mechanism is installed at the bottom of the material trough. A baffle is placed inside the material trough, and a baffle mesh is installed on the baffle. An air vent is opened at the bottom of the box body, and a blower mechanism is installed inside the air vent. Pressure relief ports are opened on the top side walls of both sides of the box body, and sealing plugs are installed inside the pressure relief ports. A box cover is installed on the top of the box body, and a sealing chamber is fixedly connected to the bottom of the box cover. Several air guide holes are opened at the bottom of the sealing chamber, and air outlet holes are opened on both side walls of the sealing chamber. This utility model eliminates the need for additional drive equipment to rotate the corn flakes to prevent them from piling up when using high-temperature hot air to dehydrate them. It is low-cost, energy-efficient, and the relevant components are detachable for regular maintenance and replacement.

The embodiment of the application provides a kind of oily sludge reduction cleaning equipment, it is related to oil exploitation, refining technical field, including equipment ontology, equipment ontology includes scraping floating oil filter module, oil sludge dehydration module and oil sludge lifting module, scraping floating oil filter module is provided with feed aeration zone, floating oil salvage area and floating oil scraping area in, aeration device is provided in feed aeration zone, oil extraction device is provided in floating oil salvage area, oil scraping device is provided in floating oil scraping area, the end of oil scraping device is provided with oil outlet, oil sludge propulsion device is provided in the bottom of scraping floating oil filter module, oil sludge lifting module is communicated with scraping floating oil filter module at the position of oil sludge propulsion device close to tail portion, the inside of the oil sludge lifting module is equipped with oil sludge lifting device, the oil sludge lifting device is connected with oil sludge dehydration module, and oil sludge dehydration device is provided in the oil sludge dehydration module.The application has the effect of cleaning, oil removal, degassing, dehydration.

This invention discloses a zero-emission scattered gas liquefaction recovery and helium extraction system and method, comprising: an inlet separation unit for gas-liquid separation of the feed gas to obtain a first gas phase; a feed gas pressurization unit for interstage pressurization of the first gas phase to obtain a second gas phase; a feed gas deacidification unit for deacidification of the second gas phase to obtain a third gas phase; a dehydration and mercury removal unit for dehydration and mercury removal of the third gas phase to obtain a fourth gas phase; a heavy hydrocarbon removal unit for re-contact and cryogenic separation of the fourth gas phase after precooling to obtain a fifth gas phase and a heavy hydrocarbon liquid; a denitrification unit for denitrification of the fifth gas phase after liquefaction to obtain LNG and a sixth gas phase; a helium extraction unit for helium extraction from the sixth gas phase to obtain high-purity helium; a hydrocarbon stabilization unit for hydrocarbon stabilization of the heavy hydrocarbon liquid; and a condensate desulfurization unit for gas stripping desulfurization of the sulfur-containing condensate obtained from the previous stage. This invention can improve the recovery rate of scattered gas, reduce operating energy consumption, and reduce investment costs.

This invention provides a highly efficient dehydration method for energetic and water-containing waste HTPB propellant, comprising: Step 1, barrier coupling sheet preparation: Under low temperature conditions of 5-10℃, the energetic and water-containing waste HTPB propellant is placed inside a barrier, protected by an inert gas, and pressed into propellant sheets with a thickness ≤1mm using a two-roller press; Step 2, fiber-like capillary adsorption: The propellant sheets obtained in Step 1 are spread flat on the surface of a multi-level porous fiber-like capillary matrix, and allowed to adsorb statically. Through capillary effect, free water on the surface of the propellant sheets is driven to migrate along the porous channels of the matrix and be captured, removing the surface free water; The fiber-like capillary matrix is ​​composed of a cellulose skeleton phase, a silica aerogel porous control phase, a hydroxylated nanocellulose interface functional phase, and a polyurethane substrate supporting and stabilizing phase; Step 3, negative pressure physical dehydration; Step 4, chemical selective dehydration; Step 5, safe recycling. This invention has high dehydration efficiency, retains thermal stability, is safe and controllable, and has low cost.

This utility model discloses a sulfur recovery flue gas expansion joint assembly with heat recovery effect, including an expansion joint body installed on the flue gas duct of the sulfur recovery system. The expansion joint body includes a corrosion-resistant corrugated pipe, a jacketed heat recovery mechanism, and an associated component that limits the transition displacement of the jacketed heat recovery mechanism. The jacketed heat recovery mechanism is sleeved on the outside of the corrosion-resistant corrugated pipe, and the jacketed heat recovery mechanism uses the inner and outer expansion joints to form a dehydration circulation cavity. This utility model, through the cooperation of the corrosion-resistant corrugated pipe, the jacketed heat recovery mechanism, and the associated mechanism, enables the expansion joint body to achieve integrated operation of heat recovery and corrosion protection. By using the jacketed heat recovery mechanism to form a dehydration circulation cavity with the inner and outer expansion joints, the expansion joint body can be cooled down, while increasing its corrosion resistance and service life, thereby improving the stable operation of the sulfur recovery system.