111results about How to "Reduce entrainment" patented technology

The invention relates to the technical field of glycerol triacetate preparation, in particular to an esterification phase splitter for preparing glycerol triacetate, which comprises a tower tray arranged in a rectifying tower, umbrella-shaped covers are uniformly distributed on the upper surface of the tower tray, and the tower tray comprises a movable tray, a fixed tray, a riser and an adjusting mechanism. By optimizing the structure of the umbrella-shaped cover and the design of the adjusting mechanism, the problems of a viscous layer and entrainment caused by high viscosity of glycerol triacetate are solved, by reducing the diameter of the bottom of the umbrella-shaped cover and reducing the comprehensive height of the overflow weir, the liquid flowing space is enlarged, the liquid retention time is shortened, and by forming an air inlet groove and an adjusting hydraulic oil cylinder, the liquid retention time is shortened. The gas-phase flow area is increased, gas-liquid contact is optimized, entrainment is reduced, through adjustment of the hydraulic oil cylinder, adaptation to the requirements of different reaction stages is achieved, the height of the downcomer is increased, and the flooding risk is reduced.

The invention discloses a beneficiation method for efficiently recovering barite from heat treatment drilling waste. The beneficiation method comprises the following steps that (1) the drilling waste containing the barite is subjected to wet screening classification; (2) performing magnetic separation on the undersize product to obtain a magnetic product and a non-magnetic product; (3) carrying out primary roughing and primary concentration on the non-magnetic product to obtain a barite powder product 1; and (4) the roughing tailings are subjected to scavenging for three times, scavenged concentrates are combined and then subjected to fine selection for two times, and a barite powder product 2 is obtained. According to the method, barite in the heat treatment drilling waste is efficiently recycled by adopting a beneficiation method, two different grades of barite powder products are obtained and can serve as drilling fluid raw materials to be recycled, resource utilization of the waste is achieved, and meanwhile environmental hazards are reduced.

The invention belongs to the technical field of superfine powder preparation and lithium battery materials, and particularly relates to monoclinic-phase zirconium oxide nano powder as well as a preparation method and application thereof. The preparation method comprises the following steps: adding zirconium oxychloride octahydrate into water for dissolving to obtain a zirconium oxychloride aqueous solution, then putting the zirconium oxychloride aqueous solution into a hydrothermal reaction kettle, heating to 140-160 DEG C for hydrothermal reaction, cooling to room temperature after the reaction is completed, and standing for precipitation; then adding ammonia water to carry out ammonolysis reaction, standing and aging, completely precipitating residual zirconium ions, separating the precipitate, washing and drying to obtain a zirconium hydroxide precursor; and finally, carrying out heat preservation calcination treatment at 850-950 DEG C in an air environment to obtain the monoclinic phase zirconium oxide nano powder. The preparation method is simple in preparation process, and toxic and harmful substances are not introduced. The obtained nano ZrO2 powder has the advantages of accurate chemical composition, small powder particle size and low Cl <-> content, and meets the specification requirements of lithium battery positive electrode material additives.

The utility model discloses clean production equipment of an amine liquid desulfurization system, which comprises a desulfurization tower for countercurrent absorption of sulfur-containing gas and lean amine liquid, and a rich amine liquid pre-dealkylation device, a rich amine liquid flash evaporator, an amine liquid regeneration tower and an amine liquid purifier which are sequentially connected in series at the rear end of a rich amine liquid outlet of the desulfurization tower, the liquefied gas pre-liquid and solid removal device, the liquefied gas deep liquid removal device and the liquefied gas water scrubber are sequentially connected in series at the rear end of a liquid hydrocarbon outlet of the desulfurization tower; wherein the lean amine liquid outlet of the amine liquid purifier is further connected to the desulfurization tower through a pipeline, so that the regenerated lean amine liquid is reused for desulfurization of the sulfur-containing gas. The equipment disclosed by the utility model can efficiently remove hydrocarbon and amine, and has the advantages of reducing energy consumption and improving system stability.

The invention belongs to the field of medical isotope separation and preparation, and particularly relates to a method for separating and purifying < 212 > Pb from a thorium solution, which comprises the following steps: 1) leacheate is introduced into a Pb selective adsorption column to pretreat the Pb selective adsorption column, and then < 232 > Th salt solution and leacheate are introduced in sequence; 2) continuously introducing a desorption solution into the Pb selective adsorption column, enabling the desorption solution passing through the Pb selective adsorption column to flow into the Th selective adsorption column, and collecting the outflowing desorption solution; a desorption solution only containing 212Pb is obtained; according to the method, the 212Pb in the high-concentration thorium solution can be separated and purified at the same time. While < 232 > Th impurity entrainment and pollution in a < 212 > Pb product are remarkably reduced, compared with a single-column process, the separation time is basically not increased. The separated 212Pb product has high radionuclide purity and chemical purity at the same time, and can meet related pharmaceutical requirements.

The invention discloses a high-compactness composite current collector preparation device and application thereof, and relates to the technical field of current collector preparation, and the high-compactness composite current collector preparation device comprises an installation unit which comprises an installation bottom plate, an installation shell arranged on the installation bottom plate, an unwinding device arranged on the installation shell and a winding device arranged on the installation shell; and the coating unit comprises a spraying part arranged on the mounting shell, an extrusion roller arranged on the spraying part and an argon tank arranged below the spraying part. Through the arrangement of the spraying part, a base film passes through a scraper and a sawtooth-shaped rack after being sprayed with a coating, air foam in the coating can be broken, air entrainment is reduced, the risk that bubbles and wrinkles are generated on the surface of the coating is reduced, and before the coating reaches an inclined or folded area, the sawtooth-shaped rack can firstly smooth the surface of the coating, so that the coating is prevented from falling off. Deformation of the coating during inclination is reduced, and high compactness of a product can be achieved.

The invention discloses a high-purity dimethyl carbonate and propylene glycol synchronous refining adjusting system and method, and relates to the technical field of high-purity dimethyl carbonate and propylene glycol synchronous refining, and the method comprises the following steps: at the beginning of a process, firstly adopting a reflux ratio regulation frequency in an initial distillation stage to quickly remove low-boiling-point impurities and establish heat balance in a tower; and when a switching process between the initial distillation stage and the refining stable stage is entered, heat balance information of the system is collected in real time. By introducing the real-time monitoring and support vector machine model, the heat balance state change is intelligently identified, the reflux ratio regulation frequency is dynamically adjusted, the gas-liquid mass transfer balance is ensured, impurity entrainment is avoided, the product purity is improved, the burden of downstream separation equipment is relieved, the energy consumption and the cost are reduced, and the heat balance of the system is quickly recovered; the production efficiency and the product reliability are remarkably improved, the whole batch of products are prevented from being scrapped, and an efficient and high-quality synchronous refining process is realized.

The utility model discloses an oil tank device for quenching treatment, which comprises a box body, a supporting rod fixedly connected to the upper surface of the box body, a bearing plate fixedly connected to the upper end of the supporting rod, a lifting device fixedly connected to the lower surface of the bearing plate, a connecting rod fixedly connected to the lower end of the lifting device, and a storage plate fixedly connected to the lower end of the connecting rod. A stirring device is rotatably connected to the inner surface of the box body, a filtering device is fixedly connected to the lower surface of the box body, a backflow pipe is fixedly connected to the lower surface of the filtering device, the other end of the backflow pipe is fixedly connected to the side surface of the box body, and an oil discharging pipe is fixedly connected to the side surface of the box body. Metal particles such as iron chips and steel chips may damage or pollute the surface of a workpiece, and the quenching treatment quality can be improved by removing the metal particles.

The invention provides a yellow phosphorus tail gas purification method. The yellow phosphorus tail gas purification method comprises the following steps: tail gas pressurization, water washing cooling dust removal and demisting, multi-stage countercurrent acid washing desulfurization, dephosphorization and demisting, alkali washing and demisting and the like. The yellow phosphorus tail gas is dephosphorized, desulfurized and purified by adopting multi-stage sulfuric acid countercurrent washing, most saturated steam brought by the yellow phosphorus tail gas is removed in advance by utilizing the water absorption of low-concentration sulfuric acid in the first two sections of acid washing, meanwhile, alkaline H3P is absorbed in the low-concentration sulfuric acid, and most H3P is oxidized and removed by introducing oxygen through circulating sulfuric acid, so that the consumption of 98% of sulfuric acid is greatly reduced, and the energy consumption is reduced. High-concentration sulfuric acid is subjected to acid pickling in the later two stages, sulfur and phosphorus impurities are removed through oxidation by means of the oxidizability of the high-concentration sulfuric acid, oxygen is introduced into washing circulating sulfuric acid to oxidize H3P and H2S dissolved in the sulfuric acid, and consumption of 98% of sulfuric acid is reduced.

This invention discloses a method for preparing high-purity oxygen-free copper, relating to the field of metallurgical technology. The method includes multi-stage electrolytic refining, gradient-heating vacuum melting, inert gas-protected refining, electron beam melting, hydrogen plasma arc melting, directional solidification, and post-treatment steps. The multi-stage electrolytic refining utilizes a specific component electrolyte and periodically commutated current; vacuum melting is combined with bidirectional electromagnetic stirring; inert gas-protected refining is combined with a gradient reduction composite covering agent; electron beam and hydrogen plasma arc melting achieve deep purification and deoxidation; and directional solidification and two-stage annealing ensure product performance. The high-purity oxygen-free copper prepared by this invention has a conductivity of 102.3% IACS, a copper content ≥99.9999%, and an oxygen content <1.0 ppm. It exhibits high purity, low oxygen content, and excellent conductivity. The process is stable and controllable, making it suitable for high-end electronics applications.

The utility model relates to a kind of for prothioconazole oxidation synthesis light heavy component automatic separation device, belong to chemical production technical field, including prothioconazole oxidation synthesis component phase tank, mixed liquor regulating valve, light component regulating valve, heavy component regulating valve, flowmeter, mixed liquor regulating valve, light component regulating valve, heavy component regulating valve, flowmeter are all set to prothioconazole oxidation synthesis component phase tank, prothioconazole oxidation synthesis component phase tank is provided with mixed liquor feed inlet, light phase outlet, heavy phase outlet, blow-off, the utility model, optimization tank body structure realizes unpowered high-efficiency separation, reduce equipment cost, improve separation precision and product purity, by phase tank stratification structure optimization, light / heavy phase outlet height difference design and valve control, to effectively reduce entrainment rate, interface height and flow are monitored in real time, dynamically regulate valve opening, when heavy component proportion increases, automatically increase heavy component valve opening, to effectively reduce artificial dependence.

The present invention relates to the field of paste resin production, specifically a paste resin latex VCM circulation purification and removal system and process, including a VCM gas-liquid separation tank and a VCM gas-liquid separation tower, the two are connected in series through a VCM circulation pipeline and a discharge pipeline; the feed pipeline transports the original latex containing VCM monomers to the VCM gas-liquid separation tank for stirring, and VCM is separated from the latex during the stirring process and discharged into the VCM exhaust pipeline; the latex containing the remaining VCM gas phase enters the VCM circulation pipeline and is steam-heated to 70-80°C, and the heated latex enters the VCM gas-liquid separation tower in a vacuum environment, and VCM is recovered by spraying; the latex falling into the bottom of the tower enters the VCM gas-liquid separation tank again through the discharge pipeline, and the cycle is repeated until the latex VCM monomer content in the VCM gas-liquid separation tank reaches less than 200ppm, and the finished latex can be discharged to the next process. The present invention can remove VCM in the latex to the greatest extent, and at the same time solve the problems of agglomeration of the inner wall of the traditional stripping tower and easy clogging of the steam nozzle.

The utility model belongs to the technical field of automobile part casting molds, and provides an integrated semi-solid magnesium alloy high-pressure casting mold for a new energy automobile, which comprises a movable mold assembly, a fixed mold assembly, a sliding block mechanism, a sealing assembly, an exhaust assembly and a pouring system, the sealing assembly is arranged between the movable mold assembly and the fixed mold assembly, a sealing cavity is formed between the movable mold assembly and the fixed mold assembly, a product cavity is further formed between the movable mold assembly and the fixed mold assembly, and the product cavity comprises three cavities used for forming a first main body part, a second main body part and a third main body part respectively; the sliding block mechanism is arranged on the movable mold assembly; the exhaust assembly comprises an exhaust part; the pouring system comprises a pouring gate. Compared with the prior art, the pouring gates are asymmetrically distributed along the product cavity, semi-solid magnesium alloy slurry can be guided to be filled in a stable laminar flow state, air entrapment, turbulent flow and impact are reduced, the defects of cold shut and shrinkage porosity of products are reduced, and the forming precision and mechanical property of the integrated vehicle-mounted decoration plate are improved.

The application provides a directional separation method of aluminum in anodic oxidation linear polishing liquid, and belongs to the technical field of wastewater treatment. The directional separation method of aluminum in anodic oxidation linear polishing liquid is a phosphoric acid-based polishing liquid, and comprises the following steps: S1. pumping the anodic oxidation linear polishing liquid containing aluminum ions into a reaction kettle, heating and maintaining the system temperature at 50-70 DEG C; S2. slowly adding a solid sodium salt precipitant to the polishing liquid under stirring, and the molar ratio of sodium ions in the sodium salt precipitant to aluminum ions in the polishing liquid is controlled to be 1.05-1.20; S3. maintaining the temperature and stirring state to react for 1-2 hours, then cooling the reaction kettle, reducing the system temperature to 15-25 DEG C, and standing and aging for 2-4 hours, so that aluminum ions are precipitated in the form of sodium-containing aluminum phosphate precipitate; and S4. performing pressure filtration solid-liquid separation on the mixed solid-liquid system after reaction, and the intercepted filter cake is the separated sodium-containing aluminum phosphate precipitate, and the obtained filtrate is a de-aluminum polishing regeneration liquid.

This invention belongs to the field of lithium-ion battery electrolyte material preparation technology, and provides a solid lithium hexafluorophosphate with low fine crystal content and its preparation method. The preparation method involves adding lithium fluoride to anhydrous hydrogen fluoride to form anhydrous hydrogen fluoride slurry. A portion of the anhydrous hydrogen fluoride slurry and phosphorus pentafluoride gas are fed into a primary continuous reaction crystallizer. The resulting slurry is subjected to low-temperature fractionation to form a first stream and a second stream. The second stream enters a secondary continuous growth crystallizer and continues to react with phosphorus pentafluoride gas, followed by solid-liquid separation to obtain a solid wet product and mother liquor. The first stream, another portion of the anhydrous hydrogen fluoride slurry, and a portion of the mother liquor enter a pre-conditioning section, and the resulting pre-conditioned stream is returned to the feed end of the primary continuous reaction crystallizer. The solid wet product is then subjected to low-temperature washing and programmed vacuum drying to obtain the final product. This method, through the combination of fractional reflux, mother liquor participation in pre-conditioning, and continuous growth processes, reduces fine crystal entrainment and improves particle size distribution stability.

The invention relates to the technical field of dust removal equipment, in particular to a leaching filter bag dust removal device which comprises an outer barrel, a rotational flow barrel, a spraying assembly, a dewatering barrel and a vaporization filter bag unit outer barrel, a rotational flow cavity is formed in the rotational flow barrel, and a nozzle is installed at the upper end in the rotational flow cavity; a dewatering cavity is formed between the inner peripheral wall of the dewatering cylinder and the outer peripheral wall of the cyclone cylinder; according to the device, rotational flow and spraying are combined, the nozzle sprays water mist to the rotational flow cavity to capture particulate matter in airflow, the particulate matter and the water mist in the airflow are thrown to the inner circumferential wall of the rotational flow cavity under the action of centrifugal force to flow downwards, and the particulate matter in the airflow is effectively removed; and by utilizing the design of the coil pipe, the dehydrated air flow exchanges heat with the coil pipe through the spiral slit, and the boiling point of the water mist is reduced, so that the residual water mist in the air flow can be promoted to be vaporized, and the problem that particulate matters are hardened on a filter bag due to the fact that the residual water mist in the air flow reaches the filter bag of the filter bag assembly is avoided.

The invention relates to a system for treating heavy hydrocarbon, which can reduce the content of heavy fraction impurities in a gas-phase component and the content of light components in a liquid-phase component by injecting a cooling aid, a separation aid and an optional gas stripping aid, thereby improving the gas-liquid separation effect. Moreover, the flash separation equipment is separated into a plurality of separation chambers which are arranged side by side through baffles, each separation chamber is provided with a steam-hydrocarbon mixture inlet and a gas phase outlet, and a high-temperature steam-hydrocarbon mixture entering the separation chamber is separated and then directly enters a downstream device from the gas phase outlet of the separation chamber. The hydrocarbon partial pressure can be adjusted without arranging a high-temperature adjusting valve on the gas phase outlet pipeline, so that the fault rate of the high-temperature adjusting valve at high temperature can be reduced, and the service life of the system can be prolonged. In addition, a cyclone hydraulic separator and a tower tray are arranged in each separation chamber, so that the gas-liquid separation efficiency and the flash evaporation effect can be improved.

The invention belongs to the technical field of hydrometallurgy, and in particular relates to a method for removing thorium from a lutetium-containing liquid. The invention provides a method for removing thorium from a lutetium-containing liquid, comprising the following steps: extracting the lutetium-containing liquid with a metal extract to obtain an organic phase; the volume ratio of the metal extract to the lutetium-containing liquid is 5-10:1; mixing the organic phase with a hydrochloric acid solution for back extraction to obtain an aqueous phase; the molar concentration of the hydrochloric acid solution is 6.3-6.7 mol / L, and the volume ratio of the organic phase to the hydrochloric acid solution is 5-10:1; mixing the aqueous phase with an oxalic acid solution for precipitation to obtain a crude lutetium oxalate product; the mixing is carried out under stirring conditions, the stirring temperature is 58-62°C, and the stirring speed is 100-200 r / min; washing the crude lutetium oxalate product to obtain lutetium oxalate; the washing solvent is a mixed solution of ammonium oxalate solution and ethanol; the mass ratio of the crude lutetium oxalate product to the solvent is 1:3-5; and calcining the lutetium oxalate to obtain lutetium oxide.

The application discloses a method for extracting sodium glycolate from pesticide wastewater and belongs to the wastewater treatment field. After 2,4-D production wastewater is stirred after pH is adjusted to 3.0, the filtrate is collected by filtration, the pH of the filtrate is adjusted to 8.0, and the concentrated solution is obtained by concentration under reduced pressure. The concentrated solution, modified cyclodextrin and modified cellulose are mixed according to the weight ratio of 100:0.8-1.2:0.1-0.3, the first mixing and stirring are performed, the second mixing and stirring are performed after cooling, the third mixing and stirring are performed after cooling again, and the filter cake is collected. After the filter cake and deionized water are mixed and stirred, the filtrate is collected by filtration, and the sodium glycolate is obtained by vacuum drying of the filtrate. The application solves the problem of co-crystallization of sodium glycolate and sodium chloride, and improves the purity and yield of sodium glycolate.

This invention discloses a method for the continuous preparation of biodegradable copolyester PBST. The method includes: (1) esterifying terephthalic acid and 1,4-butanediol in a stirred vertical esterification reactor; (2) introducing the product of step (1), succinic anhydride, and 1,4-butanediol into the stirred vertical esterification reactor for further esterification; (3) introducing the product of step (2) into a pre-polymerization reactor for pre-polymerization; (4) introducing the product from the pre-polymerization reactor into a final polymerization reactor for final polymerization; and (5) introducing the product from the final polymerization reactor into a melt thickening reactor for melt thickening, so that the melt index of the reaction product reaches 1-20. According to the scheme of this invention, not only can high molecular weight aliphatic aromatic copolyesters be continuously prepared, but the tensile mechanical properties of the prepared PBST are also significantly better.

According to the intelligent casting device based on the digital boiling cooling channel and the control method of the intelligent casting device, firstly, high-performance low-pressure anti-gravity stable mold filling of metal melt is achieved, and then intelligent and high-cooling-speed metal melt high-performance solidification is achieved based on the digital boiling cooling channel. By means of the method, stable mold filling of low-pressure anti-gravity casting can be achieved, the defects of gas entrapment, oxidation slag inclusion and the like are reduced, sufficient feeding under pressure solidification is ensured, the problems of shrinkage cavities, shrinkage porosity, hot cracks and the like are reduced, and therefore a compact structure is obtained; and intelligent cooling speed enhanced solidification and sequential solidification of castings in any shape in a three-dimensional space can be realized based on a digital boiling cooling channel, a solidification structure with refined grain structure, small secondary dendritic crystal arm spacing and few defects is obtained, and finally, a high-performance high-end complex casting is produced.

The present invention belongs to the technical field of chemical distillation, and mainly relates to a distillation tower for electron donor production, including a tower body with a distillation chamber inside, a central axis and a distillation unit in the distillation chamber, and the distillation unit includes a transmission shaft, a sieve plate type tower plate, an adjustment plate and a gas gathering sleeve; the transmission shaft is arranged outside the central axis, the sieve plate type tower plate is fixed on the inner wall of the distillation chamber, the overflow end of the sieve plate type tower plate is connected with an overflow pipe, and a through hole is arranged on the sieve plate type tower plate; the adjustment plate is arranged below the corresponding sieve plate type tower plate, and is assembled in the distillation chamber by rotating around the axis of the central axis, and an adjustment hole is arranged on the adjustment plate; the gas gathering sleeve is arranged below the adjustment plate; an adjustment member is arranged in the gas gathering sleeve, and a first transmission structure is arranged between the transmission shaft and the adjustment member. When the gas flow rate is too small or too large, the first transmission structure drives the adjustment plate to rotate to adjust the overlapping area of ​​the through hole and the adjustment hole to prevent more leakage and reduce the phenomenon of liquid foam entrainment.

The invention provides a multi-kettle series continuous polymerization system and a production method, and relates to the technical field of chemical production equipment. The system comprises a plurality of polymerization kettles which are connected in series, the polymerization kettles are sequentially connected in series through overflow pipes, and at least one overflow pipe is arranged in each polymerization kettle; the overflow pipe extends downwards from the inside of the polymerization kettle and is led out from the bottom or the side wall of the lower part of the polymerization kettle, the overflow pipe of the previous-stage polymerization kettle is led to a feeding hole of the next-stage polymerization kettle, and the overflow pipe of the last-stage polymerization kettle is led to a post-treatment system; a potential difference exists between the adjacent polymerization kettles; and the overflow pipe forms an inclined angle between a part or all of the micro-branched pipe sections of the main body section in the polymerization kettle and a plumb line. Stable liquid level control and stable material transmission are achieved through a pure mechanical overflow pipe structure, an interstage pump and a complex detection control instrument are not needed, and equipment investment, maintenance cost and energy consumption are reduced; the material flows downwards naturally, gas-liquid entrainment is reduced, the pressure fluctuation resistance is high, and operation is stable and reliable.

The present invention discloses a desulfurization and decarburization rotating bed apparatus and method, the apparatus is a spherical reactor structure, and the apparatus comprises: a decarburization unit, which comprises a rotating shaft and a tree-shaped baffle plate, and the rotating shaft is vertically arranged in a spherical reactor in a penetrating manner; the whole tree-shaped baffles are tree-shaped and are arranged in a layered mode in the circumferential direction of the rotating shaft, the number of the baffles in each layer is multiple, the baffles are evenly arranged at intervals, and deviation angles are formed in the baffles of the adjacent layers in the radial direction. The connecting rod of the lower-layer baffle is longer than that of the upper-layer baffle; in the rotating process of the rotating shaft, the CO2 absorbent impacts the baffle plate from top to bottom, the baffle plate crushes liquid into fine fog drops and makes the fog drops descend spirally, and gas-liquid mass transfer is performed between the fog drops and flue gas from bottom to top while the fog drops descend; and the desulfurization unit is positioned below the decarburization unit and is used for forming contact mixing of the spirally ascending flue gas and the spirally descending SO2 absorbent. Desulfurization and decarburization processes are integrated in the same spherical reactor, so that the integration of desulfurization and decarburization is realized.

This invention relates to the field of ore flotation technology, specifically a low-consumption, high-efficiency flotation reagent for high-calcium, fine-muddy fluorite ore, its application, and a flotation method. The flotation reagent includes a modifier, a compound depressant, a compound collector, and a frother. The modifier includes sodium carbonate; the compound depressant includes water glass, carboxymethyl starch, sodium hexametaphosphate, and sodium lignosulfonate; the compound collector includes oleic acid, oxidized paraffin soap, sodium dodecyl sulfonate, and benzoyl hydroxamic acid; and the frother includes pine oil. Through the complementary functions of the compound depressant and the compound collector, highly efficient selective inhibition of high-calcium gangue and highly selective collection of fluorite are achieved, effectively dispersing fine mud, reducing froth entrainment, and ultimately obtaining a fluorite concentrate with a stable grade ≥97.0%, meeting the quality requirements of metallurgical and acid-grade fluorite products. This reduces the negative impact of fine nuclei on flotation, stabilizes the fluorite recovery rate, and increases the fluorite recovery rate by 3-6%, achieving dual stability in grade and recovery rate.

The utility model relates to air conditioning technical field discloses a device for fluorine system comfort air conditioner air outlet temperature rise, including the organism, the bottom equidistance of organism installs a plurality of silencing mechanism, the silencing mechanism is used for reducing the noise of air outlet, the bottom equidistance of organism installs a plurality of cover mechanism, the cover mechanism is used for the size of the size of the area of covering, the silencing mechanism includes the long hollow board, the long hollow board equidistance is installed in the bottom of organism, the bottom fixed connection of long hollow board has the supporting plate, the outer wall adjacent side fixed connection of supporting plate has the long rod. In the utility model, through piston rod reciprocating movement, compressed air and slowly discharge, reduce the noise frequency, thereby avoided the problem that the air conditioning air outlet wind force will produce bigger noise when blowing, the personnel body in the air conditioning surrounding area for a long time will produce the problem of discomfort.

The utility model relates to the field of refrigerator waste gas treatment, in particular to a heat storage type incinerator system for refrigerator broken waste gas treatment, which comprises a bag-type dust collector, a heat storage combustion furnace and an absorption tower, the bag-type dust collector is connected to the bottom of the heat storage combustion furnace through a waste gas guide pipe, and a liquid guide pipe is arranged at the bottom of the heat storage combustion furnace; the liquid conduit is connected to the absorption tower, the bag-type dust remover comprises a dust removal chamber and a dust removal barrel, the dust removal chamber is provided with dust removal cloth, the dust removal barrel is mounted at the bottom of the dust removal chamber, the waste gas conduit is connected to the top of the dust removal barrel, waste gas is fed into the heat storage combustion furnace through the blower, and the heat storage combustion furnace is connected to the bottom of the absorption tower through the gas conduit; the absorption tower is provided with a filling layer which is provided with a plurality of filling holes; a liquid sprayer is arranged at the top of the filling layer and is used for spraying a sodium hydroxide solution; the top of the absorption tower is connected with an exhaust chimney through an exhaust conduit. The device has the effect of reducing equipment corrosion caused by waste gas.

The invention discloses a graded absorption and purity improvement coupling system for ester exchange reaction ethylene glycol extraction liquid, and relates to the technical field of separation and purification of biological medicine chemical raw materials. Comprising an extraction liquid pretreatment module, a countercurrent grading absorption module, a purity improvement coupling module, a solvent recycling module and an environment-friendly terminal treatment module which are sequentially connected along the material flow direction, and an intelligent cooperative control module for monitoring and optimizing the whole system. In the invention, in the aspect of separation and purification, the system adopts a light-to-heavy gradient absorption strategy and a rectification-membrane separation coupling process, so that the thermodynamic limitation of a traditional single separation means is broken through, and high-precision purification of a carboxylic ester product and efficient selective recovery of ethylene glycol can be synchronously realized; therefore, the final purity of the target product is greatly improved, the target product can meet the harsh standard in the high-end application field, and the volatilization loss of light components and the entrainment of ethylene glycol are remarkably reduced by optimizing the mass transfer process.

The present invention discloses a multi-zone coupled high-efficiency dust removal dry-type electrostatic precipitator, the dry-type electrostatic precipitator comprises an inlet horn, a cover body and an outlet horn, a plurality of electric fields are sequentially arranged inside the cover body, an anode plate and a cathode wire are arranged inside each electric field, dust collecting grids are arranged inside the inlet horn and the outlet horn, the dust collecting grids are formed by evenly arranged multiple groups of bent grids, multiple groups of bent grids are arranged along the flue gas direction, and the upper and lower ends of each group of grids are installed in the inlet horn and the outlet horn through a vibrating frame. The multi-zone coupled high-efficiency dust removal dry-type electrostatic precipitator of the present invention optimizes the existing electrode plates, electrode wires, inlet and outlet horn smoke boxes, flow fields and other aspects of the electrostatic precipitator, which can improve the capture efficiency of smoke, reduce secondary dust, and further reduce the smoke concentration at the outlet of the electrostatic precipitator; the multi-zone coupled high-efficiency dust removal dry-type electrostatic precipitator of the present invention has low investment, does not occupy space or occupies a small space, has low resistance, low energy consumption, and significant efficiency improvement effect.

The invention relates to the technical field of crude lead smelting, and in particular to a production method and equipment for a bismuth-removing and silver-removing agent for lead smelting. The bismuth-removing and silver-removing agent for lead smelting is composed of a bismuth-removing layer and a silver-removing layer sequentially consolidated on the outer surface of a substrate. The production method of the bismuth-removing and silver-removing agent for lead smelting comprises the following specific steps: step one: material preparation: weighing a bismuth-removing raw material and a silver-removing raw material as needed and mixing them respectively; step two: consolidation of the bismuth-removing layer: preparing a substrate, spraying a sintering layer containing the bismuth-removing raw material outside the substrate and sintering in isolation to form a bismuth-removing layer; step three: consolidation of the silver-removing layer: spraying a sintering layer containing the silver-removing raw material outside the bismuth-removing layer and sintering in isolation to form a silver-removing layer; step four: after the bismuth-removing layer and the silver-removing layer are cooled to room temperature, the bismuth-removing and silver-removing agent for lead smelting is obtained. A production equipment for the bismuth-removing and silver-removing agent for lead smelting is also provided, which is used for one-step production of molding and sintering of a large-diameter lead smelting bismuth-removing and silver-removing agent.