23results about How to "Reduce supplementation" patented technology

The invention discloses argon recovery equipment capable of achieving stable rectification and a working method thereof.The argon recovery equipment capable of achieving stable rectification comprises a rectification system, the rectification system comprises a temperature adjusting mechanism and an argon extraction unit, and the argon extraction unit comprises a pure argon tower, an argon tower reboiler, a pure argon pipe set, a first valve set and a stability increasing component; the stability augmentation component comprises a stability augmentation assembly and a temperature detection piece, and the stability augmentation assembly comprises a nitrogen compressor and a nitrogen reboiler. According to the amount of pure argon gasified through heat exchange between pure liquid argon obtained through rectification in the pure argon tower and dried crude argon obtained after cooling in the argon tower reboiler, the supply amount of dry nitrogen is adaptively adjusted through the stability augmentation component so as to adjust the amount of pure argon supplied to the pure argon tower by the nitrogen reboiler; the argon extraction unit and the argon tower reboiler are jointly matched with the actual working condition of the argon tower reboiler, so that the anti-interference capability of the argon extraction unit is improved, the stability of the rectification process is ensured, and the purity of the obtained pure argon is ensured.

The invention discloses anti-interference argon recovery equipment and a working method thereof.The anti-interference argon recovery equipment comprises a rectification system, the rectification system comprises a temperature adjusting mechanism and an argon extraction unit, the temperature adjusting mechanism comprises a temperature adjusting component and a conduction pipe set, and the temperature adjusting component comprises a main heat exchanger; the main heat exchanger comprises a heat exchange main body and a built-in pipe group, the conduction pipe group comprises material passing pipes, the material passing pipes comprise a material feeding pipe and a material discharging pipe, the material discharging pipe comprises two material distributing pipes and a gathering pipe, and the argon extracting unit comprises a pure argon tower, an argon tower reboiler, a pure argon pipe group, a first valve group and an anti-interference assembly. The anti-interference assembly comprises an adjusting valve group and a temperature detection part. The adjusting valve group comprises a first adjusting valve and a second adjusting valve. According to the invention, the heat exchange amount during heat exchange of the dried crude argon entering the argon tower reboiler after being cooled is kept constant, so that the stability of the rectification working condition is ensured.

The invention discloses argon recovery equipment with the high extraction rate and a working method thereof.The argon recovery equipment with the high extraction rate comprises an argon extraction unit, the argon extraction unit comprises a pure argon pipe set, a first valve set and an argon extraction mechanism, and the pure argon pipe set comprises a first treatment pipe set and a second treatment pipe set; the first treatment pipe group comprises a first material receiving pipe, a second material receiving pipe and a liquid nitrogen connecting pipe, the second treatment pipe group comprises a first dirty argon guide pipe, a dirty liquid argon guide pipe, two backflow pipes, a second dirty argon guide pipe and a supplementing pipeline, and the first valve group comprises a feeding throttling valve and a first liquid nitrogen throttling valve. The argon extraction mechanism comprises a crude liquid argon treatment component and a dirty argon treatment component, the crude liquid argon treatment component comprises a pure argon tower and a nitrogen reboiler, the dirty argon treatment component comprises a nitrogen evaporator and a re-extraction assembly, and the re-extraction assembly comprises an argon synergistic tower. Compared with a common recovery mode, the treatment efficiency is high, the extraction rate of argon reaches 98% or above, and waste of argon resources is reduced.

The invention provides a composite extraction agent and application thereof in separation and recovery of lithium from lithium precipitation mother liquor. Relates to the technical field of composite extraction. The composite extraction agent comprises an extraction agent, a synergistic extraction agent and a diluent, the extraction agent comprises one or more of 1, 3-bis (4-fluorophenyl)-1, 3-propanedione, 2, 2-difluoro-1, 3-diphenyl-1, 3-propanedione, 1-phenyl-3-isoheptyl-1, 3-propanedione and benzoyl trifluoroacetone, and the diluent comprises one or more of 1, 3-bis (4-fluorophenyl)-1, 3-propanedione, 2, 2-difluoro-1, 3-diphenyl-1, 3-propanedione, 2, 2-difluoro-1, 3-diphenyl-1, 3-propanedione, 1-phenyl-3-isoheptyl-1, 3-propanedione and benzoyl trifluoroacetone. The synergistic extraction agent is prepared from one or more of tributyl phosphate, triisobutyl phosphate, triamyl phosphate, tributyl phosphine oxide and bis (4-fluorophenyl) phosphine oxide; the diluent comprises one or more of kerosene, sulfonated kerosene, tetradecane and tetradecanol. The composite extraction agent adopted by the invention has low requirement on pH, better acid and alkali resistance stability, small solution loss and good selective effect on lithium, the lithium recovery cost is reduced, and the comprehensive lithium extraction efficiency can reach 97.0% or above.

This utility model relates to the field of dust collector technology, and in particular to a water curtain dust collector, comprising a tower body, a Venturi tube connected to the lower side wall of the tower body, a screen installed on the inner side of the lower part of the tower body, several baffles installed below the screen, and a water collection tank connected to the lower end of the tower body. Both the screen and the baffles are hollow. A sedimentation tank is connected to the water collection tank. The upper outer wall of the sedimentation tank is connected to the screen and baffles via a water supply and heating pipeline. The outlets of the screen and baffles are connected to the water collection tank via a return water pipeline. This water curtain dust collector, by using a hollow screen and baffles and constructing a water circulation heating system using a water collection tank, sedimentation tank, water supply and heating pipeline, and return water pipeline, achieves several advantages. Firstly, the heated circulating water flows within the screen and baffles, increasing their surface temperature and effectively preventing the solidification and accumulation of sticky particles due to temperature reduction, thus solving the problem of flow channel blockage and extending the equipment maintenance cycle.

The utility model relates to the technical field of polycrystalline silicon production, in particular to a hydrogen utilization system. The hydrogen utilization system comprises a recovered hydrogen storage tank, a first regenerated hydrogen storage tank, a hydrogen storage tank, a first pipeline, a second pipeline and a third pipeline, a first pressure gauge is mounted on the recovered hydrogen storage tank; one end of the first pipeline is connected with the recovered hydrogen storage tank, a first control valve is mounted on the first pipeline, and the first control valve is electrically connected with the first pressure gauge; a second pressure gauge is mounted on the first regenerated hydrogen storage tank; one end of the second pipeline is connected with the first regenerated hydrogen storage tank, a second control valve is mounted on the second pipeline, and the second control valve is electrically connected with the second pressure gauge; one end of the third pipeline is connected with the hydrogen storage tank, and the other end of the third pipeline is connected with the first pipeline and the second pipeline. When the recovered hydrogen storage tank and / or the first regenerated hydrogen storage tank are / is overpressure, redundant hydrogen can be conveyed to the hydrogen storage tank through a corresponding pipeline, so that the production cost of polycrystalline silicon is reduced.

The utility model discloses a carbon monoxide washing water purification device for preparation of calcined petroleum coke, which comprises a sewage pool and reciprocating track assemblies, partition plates are arranged on the inner side of the sewage pool in a staggered manner, and the reciprocating track assemblies are laid on the outer sides of the multiple groups of partition plates and at the bottom end in the sewage pool. The reciprocating running track assembly comprises an S-shaped track, side sliding grooves, a mounting panel and a rack groove, and the side sliding grooves are formed in the two sides of the S-shaped track. According to the carbon monoxide washing water purification device for preparing the calcined petroleum coke, through mutual cooperation of flocculation, sedimentation and filter pressing mechanisms, the flocculation and sedimentation effects of ash in washing water are improved, the turbidity of the treated washing water is reduced, the water content of a filter cake passing through a filter press is reduced, the functionality is high, and after the ash in the washing water is flocculated and settled, the water content of the filter cake is reduced. And finally, harmless treatment is carried out, so that the purpose of purifying the washing water is achieved.

The present invention relates to a building material management system, and in particular to the technical field of building information management, including an information acquisition module for acquiring warehouse information of a building material storage warehouse, material information of building materials, and outbound records; a storage analysis module for analyzing the storage ratio of building materials; a storage adjustment module for adjusting the analysis process of the storage ratio; an outbound analysis module for judging the outbound situation of building materials, and adjusting and correcting according to the judgment process of the outbound situation; a storage optimization module for optimizing the adjustment process of the storage ratio analysis; a material management module for analyzing the replenishment of building materials in the next cycle; and an output module for outputting the replenishment of building materials in the next cycle. The present invention realizes the management of the inventory of building materials and solves the problems of low efficiency and inaccurate management of building materials.

The utility model discloses a kind of water-saving and energy-saving cleaning devices for aluminium processing color-coated production line aluminium material, including cleaning tank, the cleaning tank is divided into caustic cleaning tank and water washing tank sequentially arranged along track moving mode, cleaning tank includes liquid storage tank, the side of the liquid storage tank is equipped with deionized water pipeline, the bottom of liquid storage tank is equipped with water outlet pipe, the water outlet of water outlet pipe is equipped with tank liquid pump, the liquid outlet of tank liquid pump is equipped with conveying pipe, the end of conveying pipe close to tank liquid pump is equipped with heat exchanger group. The water-saving and energy-saving cleaning device for aluminium processing color-coated production line aluminium material, on the basis of not increasing power equipment, tank liquid of water washing tank is supplemented to caustic cleaning tank, can reduce water washing tank tank liquid overflow waste water discharge amount, while caustic cleaning tank reduces the supplement of deionized water due to water washing tank supplement water amount, and the temperature of supplement tank liquid is higher, also can reduce caustic tank tank liquid heating use heat, to reduce production cost.

This invention relates to the field of resource recycling technology, specifically disclosing a system and method for extracting and recovering metals from etching waste liquid. The extractant combination of this invention can minimize the loss of etching aids, preserve the original composition of the etching liquid, and allow the etching liquid to be completely reused after reducing copper, molybdenum, and other metal ions. The extractant of this invention has a long effective life cycle of extraction-back-extraction, minimal loss of extractant aids in the extraction-back-extraction cycle, and no emulsification / flocculation of the extract phase during the extraction process. The extraction rate of copper and molybdenum in the etching liquid is high. By using a specific three-phase extractant combination, more than 98% of copper and molybdenum in the waste liquid can be recovered. The copper extraction process has a good retention effect on nitrogen azole etching aids, such as 5-aminotetrazole, thereby forming a closed loop in the extraction-back-extraction cycle of the etching liquid, reducing material input and pollution.

The utility model discloses a long-distance automatic SF gas supplementing device which comprises a device body, a control box is installed on the front face of the device body, a touch display screen is arranged on the surface of the top end of the control box, a heating time knob and an emergency stop button are arranged at the bottom end of the touch display screen, and control buttons are arranged at the bottom ends of the heating time knob and the emergency stop button. The control buttons correspond to the automatic button, the air supply button, the stop button, the pressure relief button, the weighing button and the power button, a transparent protective door is hinged to the surface of the device body on one side of the touch display screen, and a monitoring pressure gauge is installed on the inner side of the device body at the bottom end of the transparent protective door. Through the matching arrangement of a heating time knob and a heating jacket, a gas cylinder main body shell is heated, the influence of the external environment on a steel cylinder is reduced, SF6 gas is supplemented, the gas supplementing efficiency is improved, through the arrangement of a U-shaped limiting clamping block and a bandage, the gas cylinder main body is conveniently limited and fixed, and through the arrangement of an inclined plane supporting plate, the gas cylinder main body is conveniently mounted into the inner side of a steel cylinder mounting bin.

The present invention relates to an energy-gathering hood for a gas stove and a gas stove using the energy-gathering hood for a gas stove, comprising a hood body surrounded by a central hole, wherein the hood body comprises an upper hood and a lower hood which are matched to each other, and a cavity is formed between the upper hood and the lower hood, and is characterized in that: the bottom periphery of the lower hood or the vicinity of the bottom periphery thereof has a first extension portion which extends downward and is used to block secondary air. Compared with the prior art, the advantage of the present invention is that the bottom periphery of the energy-gathering hood or the vicinity of the bottom periphery thereof has the first extension portion which extends downward, thereby narrowing the secondary air passage formed by the external secondary air passing through the first extension portion, which can increase the air intake resistance, reduce the supplementary amount of the secondary air, and reduce the excess air, which is beneficial to reducing the heat carried away by the large amount of smoke generated.

The application discloses a kind of for polyolefin high-pressure flare gas light hydrocarbon recovery complex absorbent, preparation method and recovery system and recovery method, it is related to petrochemical tail gas resource utilization technical field.Complex absorbent includes: main absorption component, auxiliary absorption component, heat stabilizer and viscosity modifier by mass fraction.The system includes compression impurity removal unit, absorption desorption purification unit and catalytic oxidation tail gas treatment unit, and forms integrated complete equipment.The method includes compression impurity removal, low-temperature oil absorption, flash evaporation, desorption purification, product separation and catalytic oxidation tail gas purification process.The application solves the technical problems of poor C2 selectivity, high nitrogen co-absorption rate, high temperature easy deterioration, high viscosity of existing absorbent, low separation precision of existing device, high energy consumption and tail gas not up to standard through the synergistic effect of four-function complex absorbent and double-tower coupled integrated device, realizes the efficient recovery and resource utilization of C2+ Light hydrocarbon in high-nitrogen-content polyolefin high-pressure flare gas.

The utility model discloses a beaker suite for a chemical laboratory. Wherein the glass beaker container is tightly covered with the beaker cover through the sealing rubber ring on the inner side, and the glass beaker container is placed in a beaker placing groove of an upper-layer supporting plate in the beaker base; a condensation pipe mounting port is integrally and fixedly connected above the center of the cup cover, a condensation pipe with two closed ends is inserted into the condensation pipe mounting port, and the lower end of the condensation pipe is tightly attached to the cup cover; a water inlet is arranged below the side wall of the condensing pipe, a water outlet is arranged above the side wall of the condensing pipe, and the water inlet and the water outlet are respectively connected with a cooling water inlet pipe and a cooling water outlet pipe to play a condensing role. According to the utility model, the liquefying cooling effect of cooling water is combined with the heating and dissolving function of the beaker, so that the heating and dissolving process can be continuously and stably carried out.

The invention discloses a transfer system and method for hot delivery of oxidized pellets for direct reduction to a hydrogen-based shaft furnace. The transfer system comprises an annular cooler, a hot charging transport vehicle, a hydrogen-based shaft furnace surge bin, a quantitative feeding belt conveyor and a vertical lifting device. The annular cooler is connected with the hydrogen-based shaft furnace surge bin through the hot charging transport vehicle, the hydrogen-based shaft furnace surge bin is connected with the vertical lifting device through the quantitative feeding belt conveyor, and the vertical lifting device is connected with a pellet inlet of the hydrogen-based shaft furnace; the annular cooler is a two-section type medium-high temperature annular cooler and comprises an annular cooling surge bin and a normal discharging chute, and the annular cooling surge bin and the normal discharging chute are both provided with heat preservation devices. The hot charging transport vehicle is provided with a stock bin, and the stock bin is provided with a heat preservation device; the hydrogen-based shaft furnace surge bin is provided with a heat preservation device; the quantitative feeding belt conveyor is provided with a sealing heat preservation cover. By means of the system and method, continuous operation of pellet-shaft furnace production can be achieved, recycling of heat of the pellet production annular cooling medium and low temperature section is achieved, and the consumption of external heat sources of the shaft furnace is reduced.

This utility model relates to the field of energy-saving technology in the papermaking industry, specifically to a high-efficiency waste heat recovery steam condensation device for the papermaking industry. It includes a drying cylinder with a steam inlet for heating the paper sheets and a condensate outlet, and a drying cylinder cover; a steam-water separator for rapidly separating the steam-water mixture discharged from the drying cylinder, with its inlet connected to the drying cylinder outlet and its vapor phase outlet connected to the drying cylinder cover; a temperature control valve that controls its opening and closing by sensing the temperature of the condensate; and a heat exchanger whose inlet is connected to the temperature control valve outlet, and which is connected to the drying cylinder cover via a warm air channel. This device removes the heat pump unit and flash tank of the original condensate system, and adopts a dedicated leveled condensate optimization system, resulting in higher water removal efficiency and reduced installation costs.

The application discloses a three-net roller washing box, which comprises a box body, two bottom water tanks are arranged in the box body, an inlet cloth guide roller, a middle net roller, a front widthening roller, a middle net roller tension roller, a front lower layer large net roller, an upper layer large net roller, a rear lower layer large net roller, a net roller rear tension roller, a rear widthening roller, a sucking disc, a front S roller, a rear S roller and an S roller rear tension roller are sequentially arranged in the box body along a fabric advancing direction, and the front lower layer large net roller and the rear lower layer large net roller are arranged in the two bottom water tanks respectively. The application has the following advantages and effects: through a multi-cycle soaking and washing mode, the net rollers are arranged in a triangular shape, the effect of effectively removing lint on the front and back surfaces and quickly making oil stains fall off is achieved.

The present invention discloses an energy-saving device, including: an even number of pushing components and an even number of blocking components. The present invention discloses a liquid level stabilization system. During electroplating, the circuit board slowly enters the pushing member and gradually approaches the blocking member under the push of the pushing member. After the sensing member senses the circuit board, the control system program sends a signal to make the blocking drive member work, and the blocking drive member drives the two blocking members to move in opposite directions and is in an open state. The circuit board continues to move forward and is produced normally; when the sensing member does not sense the circuit board, the control system program sends a signal to make the blocking drive member drive the two blocking members to move in opposite directions and is in a closed state, thereby cutting off the connection between the plating liquid and the outside. In the state where no circuit board enters, the plating liquid cannot flow out, thereby reducing the outflow of the plating liquid, and indirectly reducing the replenishment of the plating liquid. Then, part of the pump body can be stopped, and finally the energy-saving effect is achieved without causing waste of resources.

The present application belongs to the technical field of wet-process phosphoric acid and resource comprehensive utilization, and discloses a method for preparing phosphoric acid and calcium chloride by decomposing medium and low grade phosphate rock with by-product hydrochloric acid. (1) The phosphate rock is mixed with a hydrochloric acid solution, sodium chloride is added, and after reaction, solid-liquid separation is performed to obtain an acidolysis solution; (2) the acidolysis solution is separated and treated to obtain a phosphoric acid solution and a calcium chloride solution; (3) the calcium chloride solution is neutralized and purified by using a stepwise pH value control method; (4) the purified calcium chloride solution is concentrated, sodium chloride is precipitated and separated due to solubility difference, and is returned to step (1) for recycling, and the concentration, crystallization and drying are continuously performed to obtain a calcium chloride product. The present application effectively solves the problems of difficult solid-liquid separation and low value of by-product calcium chloride caused by the generation of silica gel in the acidolysis process of medium and low grade phosphate rock, the decomposition rate of the phosphate rock is more than 98%, high quality phosphoric acid is obtained, the full utilization of by-products is realized, and the production cost and energy consumption are significantly reduced.

The invention discloses a remote sensing image multi-level subtitle generation method and device based on hybrid intelligence, relates to the technical field of remote sensing image processing and computer vision, and can solve the technical problems that a remote sensing image subtitle generation algorithm in the current remote sensing field is coarse in labeling granularity, simple in subtitle, single in scene and the like. Comprising the steps of determining ground feature elements and target scene categories corresponding to remote sensing images; and automatically correcting the ground feature elements according to the target scene category and the ground feature element correction rule to obtain automatically corrected ground feature elements, and performing subtitle generation on the remote sensing image by using a subtitle generation algorithm and spatial relationship priori knowledge to obtain spatial relationship subtitles. Obtaining a first multi-level subtitle according to the automatically corrected ground feature element, the spatial relation subtitle and the target scene category; and in response to an instruction of performing manual correction on the first multi-level subtitles, receiving manual correction performed on the first multi-level subtitles based on remote sensing image subtitle priori knowledge to obtain target multi-level subtitles.

The present invention provides a steel pipe integrated bracket for connecting and fixing a safety net to a scaffold, comprising a shovel-shaped steel pipe and a stop pin; the shovel-shaped steel pipe comprises a main pipe, a shovel-shaped support plate and a connected opposing baffle plate, the main pipe, the shovel-shaped support plate and the connected opposing baffle plate are a single steel pipe integrated structure, and a limiting hole for installing the stop pin is provided on the shovel-shaped support plate. The main pipe, reinforcing ribs, shovel-shaped support plate and the connected opposing baffle plate are all integrated structures, and the stop pin is a trapezoidal structure, and the front end is inserted into the directional limiting hole of the shovel-shaped steel pipe and riveted to prevent it from falling off. This product is completed through the process of cutting steel pipes to a fixed length, flattening and punching the front end, bidirectional bending of the front baffle plate, expanding the ribs at the rear of the steel pipe, shaping the steel pipe, and riveting the stop pin. The present invention has the advantages of simple structure, convenient processing, strong and durable, convenient disassembly and assembly, and economical and practical.

The invention relates to a separation system, a separation method and a phase separation device for a mixture containing pyridine or derivatives thereof, and the separation method comprises the following steps: S1, extracting a mixture material flow containing pyridine or derivatives thereof in an extraction tower by adopting an extraction agent to obtain an extraction liquid material flow and a raffinate material flow; s2, rectifying the extraction liquid material flow in an extraction agent recovery tower, and respectively obtaining a product material flow and a first gas phase material flow at a tower kettle and a tower top; performing condensation and phase splitting on the first gas phase material flow to respectively obtain a first oil phase material flow and a first water phase material flow; the first oil phase material flow flows back to the extraction agent recovery tower. According to the method, the pyridine or the derivative thereof in the mixture is recovered by virtue of an extraction means, so that the energy consumption can be reduced, the pollutant content in the discharged material flow is lower, the discharged material flow reaches the discharge standard, and the recovered material can be used as a medicine raw material to generate additional value.

The invention discloses a negative pressure adjusting type multifunctional refrigerator car, and particularly relates to the technical field of refrigerated transport tools, the negative pressure adjusting type multifunctional refrigerator car comprises a car body, a compartment is mounted on the car body, a compressor is mounted on the front side of the exterior of the compartment, a nitrogen supply mechanism connected with the compartment is arranged on one side of the compressor, and an exhaust mechanism connected with the compartment is arranged on one side of the nitrogen supply mechanism; the top of the front end of the compartment is provided with a condenser connected with the compressor, the condenser is connected with an evaporator, the middle of the interior of the compartment is provided with a third partition plate, the two sides of the third partition plate are provided with first partition plates, each first partition plate is provided with a fan, one side of each first partition plate is provided with a second partition plate, and the top end of each second partition plate is connected with a nitrogen conveying assembly. The bottom end of each nitrogen conveying assembly is provided with an emptying assembly, and the bottom end of each emptying assembly is provided with a plurality of infrared sensors. The fresh-keeping effect of fresh agricultural products is effectively improved, efficient utilization and circulation of nitrogen are achieved, the sealing performance of the compartment is guaranteed, and the advantages of flexible unloading operation and energy saving are achieved.