32results about How to "Realize continuous recycling" patented technology

The invention discloses a method for absorbing and separating light hydrocarbons from dry gas or industrial tail gas by utilizing an ionic liquid. The ionic liquid or a mixed solvent of the ionic liquid and a molecular solvent is taken as an absorbent to be in contact with the dry gas or the industrial tail gas, an absorption liquid containing the light hydrocarbons is obtained by absorption and the light hydrocarbons are further obtained by desorption and separation; and the light hydrocarbons are alkanes or olefins which mainly contain C2-C4. The invention provides the method for absorbing and separating the light hydrocarbons from the dry gas or the industrial tail gas by utilizing the ionic liquid. The ionic liquid or the mixed solvent of the ionic liquid and the molecular solvent is taken as the absorbent, an absorption-desorption method is adopted for recovery and separation of the light hydrocarbons, and the absorbent has very high solubility of the light hydrocarbons and separation selectivity, so that efficient separation and recovery of the light hydrocarbons can be realized and the highest comprehensive recovery rate can achieve 98.5%.

The invention discloses a separating preparation method of acetylene by absorbing pyrolysis gas with ionic liquid, which comprises the following steps of: absorbing heavy components in pyrolysis gas by heavy component absorbent, sequentially absorbing the pyrolysis gas under high pressure by taking the ionic liquid or the mixed solution consisting of the ionic liquid and organic solvent as absorbent and adopting an absorption-desorption method, and carrying out split reduction and warming desorption on the preheated absorption liquid, to desorb the light components, the acetylene and the high alkyne, so as to obtain the high-purity acetylene in a separation way. The method has the characteristics of being high in separation efficiency, less in solvent energy consumption, safe, environment-friendly, suitable for the industrial production, and the like.

The invention discloses a method for absorbing and separating ammonia gas from ammonia-containing exhaust gas. The method comprises the following steps: adopting a hybrid eutectic solvent as an absorbent, the solvent contacting with ammonia-containing exhaust gas to obtain an ammonia-absorbing liquid, and then conducting the desorption of the ammonia-absorbing liquid to obtain ammonia gas. The hybrid eutectic solvent consists of three components, weak acid compounds, salt compounds and additives. The invention adopts the method of absorption and desorption by using the hybrid eutectic solvent as the absorbent to recover and separate ammonia gas. The absorbent has high ammonia solubility and separation selectivity, and can achieve the efficient separation and recovery of ammonia gas.

The invention discloses a method for absorbing and separating light hydrocarbon from dry gas or industrial tail gas. The method comprises the following steps: allowing a deep eutectic solvent used as an absorbent to contact with the dry gas or the industrial tail gas, carrying out absorption so as to obtain an absorption solution containing the light hydrocarbon, and subjecting the absorption solution to desorption and separation so as to obtain the light hydrocarbon, wherein the light hydrocarbon mainly contains C2-C4 alkane or olefin. According to the invention, the deep eutectic solvent is used as the absorbent, and an absorption-desorption method is adopted to recycle and separate the light hydrocarbon, wherein the absorbent has significantly high light hydrocarbon solubility and separation selectivity, so highly-efficient separation and recycling of the light hydrocarbon can be realized.

The invention discloses an IBC solar cell string light welding device and a welding method thereof. Compared with a conventional series welding machine through which the position of a metal wire is fixed through a rear battery piece, IBC batteries cannot achieve the effect, and a net pressing clamp is needed to perform covering fixing. The light welding device comprises a rack, a welding strip feeding device, a welding strip transferring device, a light welding device body, a clamp returning device, a battery conveyor, a clamp conveyor and a pressing positioning clamp; the clamp conveyor is located on one side of the battery conveyor; the welding strip feeding device is located below the output end of the clamp conveyor; the welding strip transferring device is located above the input endof the battery conveyor and the output end of the clamp conveyor; and the welding strip transferring device, the light welding device body and the clamp returning device are sequentially arranged in the conveying direction of the battery conveyor. According to the device and the method, welding strips are pressed by the pressing positioning clamp while being placed, so that the welding strip are prevented from shifting in the conveying process, and the yield of battery strings is greatly improved.

The invention discloses a high-temperature superconducting surface radio-frequency receiving coil for magnetic resonance imaging and an operating method thereof. The high-temperature superconducting surface radio-frequency receiving coil for magnetic resonance imaging comprises a housing (1), a vacuum housing (2) and a liquid nitrogen circulating system, wherein the vacuum housing (2) is arranged in the housing (1); a high-temperature superconducting surface coil (3) is arranged in the vacuum housing (2); a low-temperature heat conducting body (4) is arranged at one end of the high-temperature superconducting surface coil (3); a liquid nitrogen tank (5) is arranged at one end of the low-temperature heat conducting body (4); an inlet pipe (6) and an outlet pipe (7) are arranged on the liquid nitrogen tank (5); a pre-amplifier (8) is arranged inside the housing (1); a signal receiving device (9) is arranged at one end of the pre-amplifier (8); and a vacuum chamber (11) is arranged between the liquid nitrogen tank (5) and the vacuum housing (2). With the structure, the high-temperature superconducting surface radio-frequency receiving coil has the advantages that the resistance is reduced; furthermore, the Q value of the coil is increased, the imaging signal-to-noise ratio is increased, and the signal receiving performance is enhanced.

The invention discloses a citrus seedling tide irrigation system. The citrus seedling tide irrigation system comprises an isolation transformer, a single-chip microcomputer control system, a touch control display terminal and a seedbed irrigation system; the input end of the isolation transformer is connected with the commercial power through a main switch, and the output end of the isolation transformer is connected with the single-chip microcomputer control system through a switch power supply; the touch control display terminal is in communication with the single-chip microcomputer controlsystem through a local area network or a public network, and can display the working parameters of the seedbed irrigation system in real time; and the single-chip microcomputer control system activelyor automatically controls the working state of the seedbed irrigation system according to an instruction from the touch control display terminal or a preset irrigation program. The single-chip microcomputer control system is adopted to control the seedbed seedling without needing PLC wiring, the technology is simple, deployment is easy, and the system is very suitable for middle and small-scale seedling occasions.

The invention discloses an oiling device for spinning fiber production and belongs to the technical field of carbon fiber production equipment. The oiling device comprises an oiling trough and an oiling agent circulating system communicated with an inlet and an outlet of the oiling trough. The oiling agent circulating system comprises a preparation tank communicated with the inlet of the oiling tank, an overflowing tank communicated with the outlet of the oiling tank and a stock solution treatment tank communicated with the preparation tank and the overflowing tank. A plurality of flower rolls and a plurality of smooth rolls are mounted in the oiling trough in parallel alternately, each of the flower rolls consists of a central roll body and 8-25 peripheral roll bodies evenly distributed around the central roll body, and the diameter of each central roll body is 7-15 times of that of each peripheral roll body. The oiling device for spinning fiber production has the advantages that the flower rolls arranged in the oiling trough are used for stirring the oiling agent in the oiling trough to accelerate relative movement between the oiling agent and fiber bundles, so that the effect that the oiling agent permeates into the fiber bundles is improved; the oiling agent in the oiling trough is mixed more uniformly.

The invention discloses a high-temperature superconductivity knee joint radio frequency receiving coil device used for magnetic resonance imaging, which comprises a shell (1), a vacuum cover (2) and a liquid nitrogen circulating system, wherein the shell (1) is provided with a through hole; the vacuum cover (2) is arranged in the shell (1); a high-temperature superconductivity knee joint coil (4) is arranged in the vacuum cover (2); the periphery of the high-temperature superconductivity knee joint coil (4) is provided with at least three liquid nitrogen tanks (5); a low-temperature heat conduction plate (6) is arranged between among the at least three liquid nitrogen tanks (5) and the high-temperature superconductivity knee joint coil (4); each liquid nitrogen tank (5) is provided with at least one liquid nitrogen liquid inlet pipe (7) and a liquid nitrogen outlet pipe (8); the lower end of the shell (1) is provided with a preamplifier (9); and one end of the preamplifier (9) is provided with a signal receiving device (10). After the above structure is adopted, the self resistance of the coil is reduced, so that a Q value of the coil is increased and an imaging signal-to-noise ratio is increased, and the signal receiving performance is improved.

The invention relates to a device for separating components of waste polyester-cotton blended fabric. The device is a horizontal rotary alcoholysis separation device and consists of an outer barrel and an inner barrel; the outer barrel is connected with a vacuum reflux condensing device; heating elements and a heat insulation layer are arranged at the periphery of the barrel wall of the outer barrel; the inner barrel is horizontally arranged in the outer barrel along the axial direction; through holes or meshes are formed in the barrel wall of the inner barrel; the inner barrel is provided with a vacuum / micro-pressure dual-purpose mechanical seal rotating shaft, and the rotating shaft passes through the outer barrel and is connected with a motor; the rotating shaft is driven by the motor, so that the rotating action of the inner barrel can be realized in a micro-pressure or vacuum state; the tail end of the vacuum reflux condensing device is connected with a collecting tank; the collecting tank is connected with a vacuum apparatus. When the device is used for carrying out alcoholysis on the waste polyester-cotton blended fabric, the process of stirring is omitted, so that the problem of property damage caused by winding of rest cotton yarns during stirring can be solved; the problems that an alcoholysis agent is left over in the rest cotton yarns, discharge is difficult to realize, and the like are solved; therefore, after the device is adopted, the components of the waste polyester-cotton blended fabric are efficiently and conveniently separated and recovered.

The invention belongs to the field of chemical waste disposal, and relates to a process method for preparing ammonia water and sulfuric acid from an ammonium sulfate solution. The process method comprises: (1) dissolving solid ammonium sulfate into the ammonium sulfate solution; (2) adding a catalyst into a reaction kettle and heating, and spraying the ammonium sulfate solution into the reaction kettle; (3) performing heat exchange on released vapor and ammonia gas when reaction temperature reaches 100 DEG C - 130 DEG C, thus obtaining the ammonia water; (4) when the temperature of the reaction kettle drops to 130 DEG C or below, stopping spraying the ammonium sulfate solution, continuing to heat to 300 DEG C - 350 DEG C and releasing sulfur trioxide gas, and then performing preliminary condensation and absorption with dilute sulfuric acid in sequence, thus obtaining the sulfur acid. The process method realizes low-temperature decomposition of ammonium sulfate at 400 DEG C or below bya solid-liquid catalytic method and achieves resource utilization of industrial waste with a simple process, high operability, energy saving and environmental protection.

The invention discloses application of a hydrogen-donor solvent and a surfactant in a methanation reaction. An active hydrogen-donor solvent and the surfactant and the surfactant are added into a slurry bed reactor; a methanation catalyst is used for performing a methanation reaction under the effects of the active hydrogen-donor solvent and the surfactant, wherein the amount of added surfactant is 1% to 12.5% of the volume of the hydrogen-donor solvent; the ratio of the catalyst to the hydrogen-donor solvent is (0.002-0.01)g to 1ml; the hydrogen-donor solvent comprises tetrahydronaphthalene, decahydronaphthalene or glycol. The application disclosed by the invention has the advantages of being simple in process, high in reaction rate and suitable for the slurry bed reactor.

The invention provides a circulation oil supply system and an inner circle slicing machine system with the same. The circulation oil supply system comprises a cutting oil recycling device, a first purifying device, a first oil supply device, an oil mist treating device, a second purifying device and a second oil supply device. The cutting oil recycling device, the first purifying device and the first oil supply device are sequentially communicated with a cutter head mounting space to form a first circulation oil supply circuit, the oil mist treating device, the second purifying device and the second oil supply device are sequentially communicated with the cutter head mounting space to form a second circulation oil supply circuit, the first circulation oil supply circuit is used for recycling and purifying cutting oil in the cutter head mounting space and supplying oil for the cutter head mounting space, the second circulation oil supply circuit is used for recycling, condensing and purifying oil mists in the cutter head mounting space and supplying oil for the cutter head mounting space, the oil mist treating device comprises a one-way gas channel, the one-way gas channel is communicated with the cutter head mounting space and is provided with a plurality of vertical sections and horizontal sections, each two adjacent vertical sections are communicated with each other by the corresponding horizontal section, condensation parts with a plurality of gaps or channels or tiny holes are arranged in the horizontal sections, the bottommost portions of the vertical sections are lower than the lowest positions of the horizontal sections, and the vertical sections are communicated with the corresponding purifying device.

The invention discloses an efficient and energy-saving type injection mold with the core pulling function. The efficient and energy-saving type injection mold with the core pulling function comprises a material tank and a shell. The material tank is arranged at one end of the top of the shell, the bottom end of the material tank extends to the middle height position in the shell, and a partition plate is vertically welded to the position, on one side of the material tank, in the shell. A feeding chamber is formed on the side, close to the material tank, of the partition plate in the shell. According to the efficient and energy-saving type injection mold with the core pulling function, a pair of piston cylinders for containing molten materials in a reciprocating manner is symmetrically connected to a main material conveying pipe, and a set of fixed mold and movable mold for injection molding are arranged in the shell and a connecting box, so that the fixed mold and the movable mold at the shell and the connecting box can be used for alternately and intermittently machining and producing plastic parts; and the main conveying pipe can continuously convey the materials, continuous feeding of the main conveying pipe cannot block a pipeline, the injection molding efficiency is improved, the volume of the materials needing to be injected in each time of injection molding production is easier to control, and the product quality is higher.

The invention discloses a method for returning crop stalks to a field. The method comprises the following steps of S1, digging a sunken composting pool in a crop harvesting season; S2, smashing the harvested crop stalks, pouring the smashed crop stalks into the sunken composting pool, spreading the crop stalks until the thickness is 0.8 m-1m, covering the crop stalks with a layer of field soil with the thickness of 5 cm, compacting, and watering until the crop stalk powder and the field soil are wet to obtain a pretreated fertilizer pile; S3, covering the surface of the pretreated fertilizer pile with 1 layer-2 layers of agricultural mulching films, and standing to enable the crop stalk powder to be subjected to water-logged composting in the sunken composting pool until the crop stalk powder becomes a decomposed fertilizer; S4, when the next harvesting season begins, removing the agricultural mulching films, directly taking the decomposed fertilizer, and uniformly scattering the decomposed fertilizer into the field after the crops are harvested and before ploughing; and S5, repeating the steps S2-S4. According to the method for returning the crop stalks to the field, the harm to soil and crops caused by traditional direct crop stalk returning is avoided, waste gas and waste water generated during water-logged compost can be prevented from leaking to pollute the environment, the quality of the soil and the crops can be improved, the implementation is simple, and continuous circulation can be realized.

The invention discloses a temporary plugging ball impact grinding test device for shale gas horizontal well fracturing, which includes a circulating pump, a liquid tank, a sensor, and an impact grinding test part. Standpipe, accelerated collision sub, spiral grinding oil pipe, solid capture and block short connection, the ball blocking return riser is installed downstream of the ball throwing riser, and its two ends are respectively connected with the entrance of the accelerated collision sub and the solid capture and block The short joints are connected, and the outlet of the solid capture and blocking short joint is connected with the liquid tank. The present invention simulates the influence of the equipment and the manifold on the temporary plugging ball by designing the impact and grinding test device, and at the same time designs a cycle experiment structure to meet the long-term test requirements, and can effectively test the deformation of the temporary plugging ball in the manifold. Material performance, optimization of ball-dropping temporary plugging and diversion equipment and technology, and improvement of fracturing efficiency provide indoor experimental basis.

The invention provides a bath solution replenishment and correction method applied to a continuous production process of an aluminum alloy titanium-zirconium conversion coating. The method comprises the following steps of: cutting aluminum alloy into samples which are 120 mm, 60 mm and 2 mm in size; pretreating the surfaces of the samples; performing conversion treatment on the surfaces of the samples; soaking, stewing and drying the samples in 1L of a titanium-zirconium conversion solution to obtain a conversion coating; taking every twenty treated samples as a batch; after the first batch ofsamples are completely treated in 1L of the titanium-zirconium conversion solution, adding 50 ml of a replenishing liquid A; and in subsequent treatment, adding 50 ml replenishing liquid B into the titanium-zirconium conversion solution after every batch of samples are treated so that the titanium-zirconium conversion solution can be continuously and cyclically used. According to the method, thetitanium-zirconium conversion solution is replenished in time to guarantee that the titanium-zirconium conversion solution can be continuously and cyclically used, and thus continuity of production ismaintained.

The invention discloses an efficient energy-saving injection mold. The efficient energy-saving type injection mold comprises a material tank and a shell, the material tank is arranged at one end of the top of the shell, the bottom end of the material tank extends to the middle height position in the shell, and a partition plate is vertically welded to the position, on one side of the material tank, in the shell. A feeding chamber is formed in the side, close to the material tank, of the partition plate in the shell, and an injection molding chamber is formed in the side, away from the feeding chamber, of the partition plate in the shell. According to the efficient energy-saving injection mold, a pair of piston cylinders for containing molten materials in a reciprocating manner is symmetrically connected to a main material conveying pipe, and a set of fixed mold and movable mold for injection molding are arranged in the shell and a connecting box, so that the fixed mold and the movable mold at the shell and the connecting box can be used for alternately and intermittently machining and producing plastic parts; and the main material conveying pipe can continuously convey the materials, continuous feeding of the main conveying pipe cannot block a pipeline, the injection molding efficiency is improved, the volume of the materials needing to be injected in each time of injection molding production is easier to control, and the product quality is higher.

The invention relates to a process and device for recycling organic waste gas by a refrigeration mode, wherein the process and device can be used for water gas recycling in the production process of a polystyrene board in the printing industry. The device comprises a drying device, a heat exchanger, a gas conveying device, a refrigeration device and a separation tank, wherein silk screens are installed on the upper part of the separation tank; the gas conveying device is positioned between a first water cooler and a second water cooler or is positioned between the first heat exchanger and a polystyrene production line; after high-temperature waste gas is subjected to water cooling and low-temperature refrigeration, organic matters are cooled down; at the temperature of minus 60-20DEG C and under the pressure of 0-5MPa, after flash evaporation and gas and liquid separation, waste gas containing less organic matters exchanges heat with the deep-cool waste gas; after cold quantity is recycled, the waste gas is introduced to the polystyrene production line to be used as the sweep gas for recycling or discharged directly; when the treated waste gas is used as the sweep gas for recycling, the organic solvent recovery rate is greater than 99.5%; and when the treated waste gas is discharged directly, the organic solvent recovery rate is greater than 85%. According to the invention, the process and device have the advantages that process is simple, operation is convenient, recovery rate of organic waste gas is high and the like, and continuous recovery can be realized.