96results about How to "Guaranteed Absorption Efficiency" patented technology

The invention discloses ionic liquid capable of absorbing sulfur dioxide as well as a preparation method and application of the ionic liquid. Cations of the ionic liquid are nitrogen-containing organic matters and anions of the ionic liquid are organic acid groups. The nitrogen-containing organic matters are selected from one or ore of guanidine salts, alcamines, imidazoles, pyridines, tetrazoles, quaternary ammonium salts, thiazoles ad dicyandiamides matters; and the organic acid groups are selected from one or more of lactic acid, tartaric acid, citric acid, methanesulfonic acid, trifluoroacetic acid, malic acid, oxalic acid and acetic acid. The ionic liquid disclosed by the invention has a relatively good absorption effect on SO2 and relatively high selectivity. The preparation method is simple, reaction conditions are moderate, the raw materials are cheap and easily available, and the product has stable performances. An absorbent prepared from the ionic liquid has high absorption efficiency, can be cyclically utilized and has good stability, and can be used for absorbing the SO2 in flue gas at a high temperature; and the inactivation of the absorbent, caused by the fact that the ionic liquid is decomposed, is avoided.

The invention discloses a multi-section tubular type sludge rapid thermal hydrolysis treatment process. The method includes the steps of sending sludge into a crude sludge pump to be primarily mixed with and preheated by flashing steam, pumping the preheated object into a first-stage dynamic mixer to be secondarily mixed with and preheated by raw material steam, making the secondarily mixed and preheated sludge automatically flow into a second-stage static mixer under excess pressure to be finally mixed with and heated by mixed steam coming from a steam ejector, making the tertiarily mixed and heated sludge automatically flow into a rapid-assembled tubular type hydrothermal reactor under excess pressure for reaction, making the sludge meeting the reaction requirements enter a flash tank to be flashed, and further conducting dehydrating or direct anaerobic digestion on the flashed sludge. By means of the process, through a large amount of latent heat generated by directly mixing steam and sludge, the sludge is heated till cells are broken and cytosol is dissolved out, and therefore the dehydrating performance and anaerobic digestion performance of the sludge are changed. The high-grade steam is subjected to flashing heat transferring, so the utilization efficiency of the steam is the highest.

The invention provides a method for removing manganous dithionate in a pyrolusite slurry leaching solution to prepare saturated manganese sulfate slurry and manganese sulfate. The method comprises the following steps: performing solid-liquid separation to obtain pyrolusite slag and a separated solution containing manganese sulfate and manganous dithionate; performing neutral oxidation on the separated solution to remove iron and aluminum; vulcanizing to remove heavy metal; heating an obtained mixed solution of manganese sulfate and manganous dithionate to evaporate and concentrate to obtain a crystal-containing saturated solution; adding sulfuric acid or a saturated manganese sulfate solution containing sulfuric acid to decompose manganous dithionate into manganese sulfate and sulfur dioxide; discharging mixed gas of sulfur dioxide and water vapor to obtain the saturated manganese sulfate slurry without the manganous dithionate. The invention also provides a method for preparing manganese sulfate through the saturated manganese sulfate slurry prepared by the method. The method is low in cost, easy to operate, and capable of removing manganous dithionate in the leaching solution without additional subsequent purifying process, and high-level manganese sulfate product is prepared.

The invention discloses a method for combined production of ammonium sulfate and ammonia through water heat pump flash evaporation, stripping and deamination. The method comprises the following steps: ammonia nitrogen steam discharged from the top of the stripping section of a composite stripping and deaminating tower (3) is pressurized through a steam circulating heat pump (11), and the pressurized ammonia nitrogen steam is divided into three parts; the first part of the ammonia nitrogen steam enters the two stage mixing section of the composite stripping and deaminating tower (3) to heat ammonia nitrogen wastewater; the second part of the ammonia nitrogen steam enters a saturation tower (4) and undergoes ammonia nitrogen preliminary absorption, and the absorbed ammonia nitrogen steam enters an absorption tower (5) and undergoes ammonia nitrogen purifying recovery; and the third part of the ammonia nitrogen stem enters the tower top rectifying section of the composite stripping and deaminating tower (3) to produce the ammonia water product. The method allows ammonium sulfate and ammonia water to be simultaneously produced, and a ratio of ammonium sulfate to ammonia water can be adjusted according to reuse requirements of a production device, so ammonia nitrogen recovered from the wastewater can be completely reused in the production device in order to realize good energy saving, consumption reduction and deamination effects.

The embodiment of the invention discloses a voltage peak absorption circuit. The circuit comprises a bus peak absorption circuit, an energy feedback circuit, a protection circuit and an energy absorption circuit. The first end of the bus peak absorption circuit is electrically connected with the positive end of the output bus of a rectifier circuit. The second end of the bus peak absorption circuit is electrically connected with the negative end of the output bus of the rectifier circuit. The first end of the energy feedback circuit is electrically connected with the positive end of the outputbus of the rectifier circuit. The second end of the energy feedback circuit is electrically connected with the first end of the protection circuit and is electrically connected with the third end ofthe bus peak absorption circuit. The third end of the energy feedback circuit is electrically connected with the second end of the protection circuit. The first end of the energy absorption circuit iselectrically connected with the positive end of the output bus of the rectifier circuit. The second end of the energy absorption circuit is electrically connected with the negative end of the outputbus of the rectifier circuit. The third end of the energy absorption circuit is electrically connected with the third end of the energy feedback circuit. According to the invention, the voltage peak absorption circuit disclosed by the embodiment of the invention is simple in structure, high in absorption efficiency, high in reliability and the like. The voltage peak absorption circuit is suitablefor the voltage peak absorption of the secondary rectifier tube of a high-power-density circuit.

The invention discloses a hole digging and tree transplanting machine of garden machinery. The hole digging and tree transplanting machine comprises a support and is characterized in that a fixing rack is fixedly mounted on one side of the upper surface of the support, guide columns are arranged between the fixing rack and the support, first electric push rods are fixedly mounted on the fixing rack, a support plate is connected to the lower ends of the first electric push rods and sleeves the guide columns, a motor is fixedly mounted in the middle of the upper surface of the support plate, anda rotating rod is arranged on the motor. The hole digging and tree transplanting machine has the advantages that fertilizing can be performed directly after hole digging, time and manpower and material resources can be saved, fertilizer can be spread to the periphery during fertilizing to guarantee that the fertilizer is distributed in holes without piling up, the fertilizer absorption efficiencyafter tree transplanting is guaranteed, resources are saved, tree transplanting can be performed fast after the hole digging and fertilizing, time can be further saved, and transplanting efficiency can be increased.

The invention relates to the technical field of new energy power generation, and discloses a solar power generation apparatus with good snow removal and dust removal effects. The solar power generation apparatus comprises a placement base; a storage battery pack is fixedly mounted on the left side of the top of the placement base; a control box, positioned on the top of the placement base, is fixedly mounted on the right side of the storage battery pack; and two supporting rods, positioned on the top of the placement base, are fixedly mounted on one side, far from the storage battery pack, of the control box. According to the solar power generation apparatus with good snow removal and dust removal effects, a protection cover is provided, and a solar module can be accommodated in the protection cover, so that the exposure time of the solar module in an external environment can be reduced, thereby lowering possibility of dust and snow accumulation on the solar module and ensuring that the solar module can better absorb solar energy; and in addition, the possibility of human damage to the solar module which is exposed in the external environment is lowered, so that the service life of the solar apparatus can be prolonged.

The invention discloses a skin-friendly anti-side leakage hygienic product surface layer. The skin-friendly anti-side leakage hygienic product surface layer is composited by non-woven fabric at an upper layer and a lower layer, the upper layer is a skin-friendly hot air non-woven fabric, the lower layer is a cotton spunlaced non-woven fabric, and the hot air non-woven fabric and the cotton spunlaced non-woven fabric are composited by hydroentanglement. The surface layer adopts the hot air non-woven fabric composed of ES fiber as the upper layer and the cotton spunlaced non-woven fabric as thelower layer. Through hydroentangled composite, the interweaving of the ES fiber and the cotton fiber can promote the rapid infiltration of the liquid, and ensures the dryness of the hot air non-woven,at the same time, the liquid absorbed by the cotton fiber is directionally transferred to a hygroscopic layer of a hygienic article, further the absorption efficiency of the liquid is ensured, the dryness of the skin-friendly surface layer is ensured, and the side leakage of the liquid is prevented. The surface layer is also composited by a double-sided spunlaced reinforcement process, the entanglement strength of the hot air non-woven fabric and the cotton spunlaced non-woven fabric is ensured, the uniformity of the non-woven fabric is increased, two-time soft drying is employed, and the soft skin-friendly properties of the non-woven fabric can be guaranteed.

The invention discloses a cadmium-telluride film solar cell, and the cell comprises a substrate. The substrate is provided with a laminated film, and the laminated film sequentially comprises a transparent conductive film, a window layer, a light absorption layer, a back contact layer, a back reflection layer and a back electrode layer from the bottom to the top. The window layer is a cadmium sulfide film layer, and the light absorption layer is a cadmium telluride film layer. The back contact layer is a cuprous thiocyanate film layer, and the back reflection layer is a silver thin layer. The cell reduces the thickness of the light absorption layer on the basis of guaranteeing the absorption efficiency of sunlight, reduces the consumption of Te raw materials, reduces the production cost, and is high in feasibility of batch growth.

The invention relates to a konjac glucomannan aqua filter core and a preparation method therefor. The preparation method for the konjac glucomannan aqua filter core comprises the steps of preparing konjac fibers, preparing konjac glucomannan gel microspheres, preparing nutritional supplement containing konjac glucomannan gel microspheres and preparing the filter core. The konjac glucomannan aqua filter core disclosed by the invention adopts konjac as a main raw material and plays a role by using the adsorption performance of the konjac fibers and the konjac glucomannan gel microspheres and the sustained release performance of the microspheres. The konjac fibers can be used for purifying water, and the konjac glucomannan gel microspheres can be used for filtering out most microorganisms in the water, so that microbiocides are not required to be used to a large extent; and the nutritional supplement containing konjac glucomannan gel microspheres can enable nutrients to be released in a long-term, stable and continuous manner so as to guarantee human body absorption efficiency. A nutritional supplement contains the ingredients, i.e., calcium carbonate, ferrous fumarate, zinc sulfate, sodium selenite, copper sulfate, manganese sulfate, chromium picolinate and the like and can be used for supplementing human required essential trace elements such as calcium, ferrum, zinc, selenium, copper, manganese, chromium and the like.

The invention discloses a fast cooling type Na<131>I destructive distillation production device. The device comprises a distillation absorber, a charging platform, a carrying platform, a counter weight device, a heating furnace, a slide rail and a workbench and is characterized in that the distillation absorber is partially arranged in the cavity of the heating furnace, the charging platform, thecounter weight device, the heating furnace and the slide rail are fixedly arranged on the workbench, the carrying platform is arranged on the slide rail and slidably connected with the same, the heating furnace, the slide rail and the carrying platform are arranged on one side of the horizontal center line of the workbench, and the charging platform and the counter weight device are arranged on the other side of the horizontal center line of the workbench. The fast cooling type Na<131>I destructive distillation production device has the advantages that high-temperature I-131 steam distilled byhigh-temperature molten reactor-irradiated TeO2 can be fast carried and efficiently captured, the cooling time of a distillation pipe and distillation residues in the distillation pipe is shortened greatly by opening the upper half of the heating furnace and using compressed air flow to carry heating furnace radiation heat, and the production efficiency and safety of Na<131>I can be increased favorably.

The invention discloses a sponge city road drainage system. The system comprises a drainage channel dug in a roadbed, an annular groove is dug in the roadbed, the annular groove is communicated with the drainage channel through a flow guide groove, a first baffle is slidably connected in the annular groove, and a second baffle is fixedly connected in the annular groove. The first baffle and the second baffle are elastically connected through a first spring, a filter screen is embedded in the flow guide groove, an arc-shaped groove is formed in the inner wall of the annular groove, and a watersupply pipe communicating with the annular groove is embedded in the roadbed. Rainwater containing a large amount of pollutants in the initial stage is guided into a sewage treatment system through ablow-off pipe, the road is gradually flushed cleanly by the rainwater as time goes by, and cleaner rainwater in the later stage can be directly guided into a designated place through the water supplypipe to be collected, so that the rainwater on the road surface is treated by stages, the rainwater absorption efficiency of a sponge city is guaranteed, and meanwhile, a polluted water source can betreated.

The invention belongs to the technical field of seawater desalination equipment and in particular relates to a seawater evaporation and desalination system. The seawater evaporation and desalination system comprises a bottom plate, a fixed frame, a collection frame, a desalination frame, a solar heat collection plate, a water collection groove and a water storage chamber, wherein the fixed frame is mounted on the bottom plate; the lower end of the fixed frame is embedded into the bottom plate; the lower end of the collection frame is embedded into the bottom plate; the collection frame is located at the left side of the fixed frame; the desalination frame is mounted above the fixed frame; the desalination frame is used for sealing the fixed frame; the desalination frame is provided with aglass cover plate; a through hole is formed in the bottom of the right side of the desalination frame; a No. 1 flow guide pipe is arranged between the collection frame and the desalination frame; thesolar heat collection plate is L-shaped; the solar heat collection plate is mounted in the desalination frame through a spring; the solar heat collection plate is used for sealing the through hole inthe desalination frame; the water collection groove is mounted on an inner wall of the right side of the desalination frame; the water storage chamber is located at the right side of the desalinationframe; a No. 2 flow guide pipe is further arranged between the water storage chamber and the water collection groove.

The invention relates to the technical field of road cleaning, in particular to a hand-push type electric non-motor vehicle lane ground cleaning machine which comprises a frame, a handlebar, a front dustbin, a rear dustbin, a hand vacuuming tube, a vacuuming motor, a sweeping brush, a brush motor, a lifting motor, a battery and a travelling mechanism. Slide bars are vertically arranged on the frame, sliders are arranged on the slide bars and are fixedly connected with the sweeping brush, the lifting motor is arranged on the frame, the output shaft of the lifting motor is in matched driving connection with a driving chain through a driving wheel, one end of the driving chain is fixedly connected with the sweeping brush, the travelling mechanism is arranged at the bottom of the frame, the battery is arranged on the frame and is located above the front dustbin, and each of the vacuuming motor, the lifting handlebar and the lifting motor is electrically connected with the battery. A battery cart comprises a frame, wheels, slide bars, sliders, lifting handlebar, a movable frame and a sliding shaft and is used for battery replacement for the cleaning machine; the hand-push type electric non-motor vehicle lane ground cleaning machine is multifunctional, applicable to various places and convenient for batteries to be replaced.

The invention discloses an aluminum ash hydrolysis denitrogenating device control method, which comprises the following steps that aluminum ash hydrolysis reaction is performed in a reaction kettle; an exhaust opening of the reaction kettle is connected with a primary absorption tank; ammonia gas and ammonia water containing steam are exhausted into the primary absorption tank; a concentration detection device arranged in the primary absorption tank detects liquid concentration in the primary absorption tank; a controller receives the detection value of the concentration detection device; whether the detection value is greater than the concentration set value or not is compared; if the detection value is greater than the concentration set value, the operation enters the next step; otherwise, the steps are repeated; the controller controls corresponding valves to be opened; liquid in the primary absorption tank is discharged into a liquid storage tank; then, the liquid in the secondaryabsorption tank is discharged into the primary absorption tank; a water supply device supplies water to the secondary absorption tank. The technical scheme provided by the embodiment has the advantages that through the arrangement of multi-stage absorption tanks, ammonia gas after reaction and ammonia water containing steam are effectively absorbed; nitrogen elements are recovered, stored and utilized; the resources are saved.

The invention discloses a hydrogen sulfide absorbing tower. The hydrogen sulfide absorbing tower comprises a complex iron storage tank, a first spraying tower, and a second spraying tower; the first spraying tower and the second spraying tower are communicated with the complex iron storage tank; the top of the first spraying tower is provided with a gas inlet and a spraying device; the top of thesecond spraying tower is provided with a gas outlet and a spraying device; a material inlet pipe, a material outlet pipe, and a circulating pipe are arranged on the complex iron storage tank; the circulating pipe is connected with the spraying devices through a circulating pump. In applications, a complex iron solution is taken as a spraying solution for absorption of hydrogen sulfide. Compared with the prior art, the advantages are that: real-time monitoring of the concentration change of the spraying solution is not needed, multi-stage reaction absorption is capable of ensuring complete absorption of hydrogen sulfide, blocking of pipelines by reaction products is avoided, the reaction products are high in economical value, labor intensity is reduced greatly, and economic benefit is improved.

The invention brings forward a flexible wearable phototherapy instrument used for preventing shoulder joint damage. The phototherapy instrument comprises a flexible conformal phototherapy body which is worn by the shoulder of a user, is constructed to be of a layered structure and comprises a uniform-light material layer; a flexible circuit board which is embedded in the conformal phototherapy body and is integrated with a control module; a light source which is controlled by the control module and is uniformly distributed in the conformal phototherapy body, wherein light emitted by the light source is emitted by passing through the uniform-light material layer; and a power supply source which is arranged in the conformal phototherapy body and supplies power to the control module and the light source. The wearable phototherapy instrument used for preventing the shoulder joint damage can enable radiant light to be vertically and uniformly irradiated on a shoulder area.

The invention relates to an intelligent nourishing mask, which comprises a sealed bag body, wherein a mask body of the mask is put in the bag body, and sequentially comprises a moisture retention layer, a seepage layer and a protection layer from top to bottom; the moisture retention layer and the seepage layer are in a tightly and firmly attached ventilate net state; the moisture retention layer covers the upper surface of the seepage layer; a water supplementing sheet is arranged on the moisture retention layer; the lower surface of the water supplementing sheet is in contact with the seepage layer; water supplementing holes are formed in the water supplementing sheet; a liquid supplementing device controlling the purified liquid to flow out is arranged on the water supplementing sheet. The mask has the advantages that the structure is novel; the use is convenient; the nutrient ingredient absorption by the face can be promoted to the maximum degree; the adsorption efficiency of essence liquid is improved; the waste is effectively prevented; meanwhile, the use by a user is convenient; the pollution is effectively avoided.

The invention discloses a horizontal double temperature zone I-131 destructive distillation device. The horizontal double temperature zone I-131 destructive distillation device comprises a heating furnace of a horizontal tubular furnace structure, a furnace cover, a distillation absorber, and a telescopic rack; the distillation absorber is arranged in a heating furnace chamber; the furnace cover,and the telescopic rack are arranged on a same end of the heating furnace; one end of the telescopic rack is horizontally fixedly arranged at the top center of the heating furnace, and the other end of the telescopic rack is designed to stretch downward vertically and is connected with the furnace cover on the heating furnace side through slide connection. The horizontal double temperature zone I-131 destructive distillation device is realizing rapid carrying and high efficiency capturing of high temperature molten piled TeO2 distillation high temperature I-131 steam; a low temperature zone isadopted for purifying treatment of distillation carrying gas, and it is beneficial for increasing of Na131I production efficiency and production safety.

The invention provides an active coke combined desulfurization and denitrification system and method based on pre-oxidation. The system comprises a pre-oxidation system arranged on a flue, an absorption system and a chimney, wherein the absorption system and the chimney are sequentially arranged at an outlet of the flue; wherein the pre-oxidation system comprises an H2O2 storage tank and an ultrasonic atomizer which are connected in sequence, and a compressed gas tank connected with an inlet of the ultrasonic atomizer, and an outlet of the ultrasonic atomizer is connected into the flue; the absorption system comprises an absorption tower; wherein the absorption tower adopts a sectional cross-flow flue gas purification adsorption tower, and comprises a gas outlet chamber and a gas inlet chamber which are isolated up and down, and a middle gas chamber communicating with the gas outlet chamber and the gas inlet chamber from the middle; active coke is arranged in the adsorbent layer forming the middle gas chamber, the lower section corresponding to the gas inlet chamber is a desulfurization section, the upper section corresponding to the gas outlet chamber is a denitration section, andan ammonia spraying device is arranged in the middle gas chamber; a gas inlet chamber of the absorption tower is connected with a flue outlet and the gas outlet chamber of the absorption tower is connected with the chimney.

The invention discloses an efficient and rapid sputum aspirator for the respiratory medicine department, and relates to the technical field of sputum aspirators. The problem of sputum backflow is solved. The efficient and rapid sputum aspirator specifically comprises a negative pressure machine; a clamping base is arranged on the outer wall of one side of the negative pressure machine, and a handle is arranged on the outer wall of the top of the negative pressure machine; the outer wall of the top of the negative pressure machine is in threaded connection with an air guide pipe; a magnetic block is bonded to one side of the negative pressure machine; a sputum collecting bottle is attracted to one side of the magnetic block; the other end of the air guide pipe is in threaded connection withthe top of the sputum collecting bottle; the outer wall of one side of the top of the sputum collecting bottle is in threaded connection with a first catheter; a bottle cap is clamped to the outer wall of the top of the sputum collecting bottle; the same non-return sleeve is fixed to the circumference of the first catheter through two hoops; a backflow preventing mechanism is arranged in the non-return sleeve; and one end of the first catheter is in threaded connection with a second catheter. According to the efficient and rapid sputum aspirator, the problem of sputum backflow is avoided, theeffectiveness of sputum collection is improved, and the situation that the first catheter is polluted by sputum is also prevented.

The invention discloses a wind power generation device with high conversion efficiency and a use method thereof. The wind power generation device comprises a supporting column, a rotating column arranged at the upper end of the supporting column, a wind power conversion box, a speed reducer, a wind power auxiliary device and a power box. The wind power conversion box is installed at the upper end of the rotating column, and vertical blades are fixedly installed at the end, located outside the wind power conversion box, of a main shaft; the speed reducer is arranged at the front and rear ends of the main shaft; the wind power auxiliary device is mounted at the lower end outside the rotating column; and the power box is arranged at the upper end of the wind power conversion box, the power box and the wind power conversion box are fixedly welded, and an inverter and a storage battery are installed on one side of the interior of the power box. On one hand, photovoltaic solar energy serves as power to drive a driving motor to conduct auxiliary speed increasing on the main shaft, the stability of the rotating process is ensured on the premise that the conversion efficiency is improved, on the other hand, under cooperation of the wind power auxiliary device, rotating speed compensation is conducted on the main shaft through a first transmission shaft, and the wind power utilization efficiency is further improved.

The invention relates to the technical field of medical equipment and discloses a visible accurate local anesthetic doser for a transumbilical endoscopic surgery. The visible accurate local anestheticdoser comprises a spray rod, a handle is fixedly installed at the right end of the bottom surface of the spray rod, a base is fixedly installed on the bottom surface of an inner cavity of the handle,a miniature pressurizer is fixedly installed at the top of the base, a spray header is fixedly installed at the top of the spray rod, a medical camera is installed selectively on the top surface of the spray rod, or the spray rod is matched in use with other video shooting sticks in the transumbilical endoscopic surgery. According to the visible accurate local anesthetis doser for the transumbilical endoscopic surgery, the spray header and the miniature pressurizer are mutually matched, an agent on the left side of an extruding plate in the spray rod is scattered into a mist and sprayed on the surface of a tissue, so that the tissue rapidly absorbs the anesthetic, the postoperation pain of a patient is effectively alleviated, the problem that the local anesthetic cannot evenly diffuse orinfiltrate on the surrounding tissue as the pipe of the traditional peritoneoscope is relatively thick and a water outlet is excessively large, so that the practicality of the device is greatly improved.

The invention discloses a wall tile for an underground garage of a smart city. The wall tile comprises a tile body, wherein a groove is formed in the side wall of the tile body, a resonance film is fixedly connected to the inner wall of the groove, air storage cavities are formed in the inner wall of the tile body in an up-down symmetrical mode, the two air storage cavities communicate with the groove through a three-way pipe, a rectangular groove is formed in the top wall of the tile body, a reaction box is elastically connected into the rectangular groove through a plurality of telescopic springs, a transmission component is rotationally connected into the reaction box, a rectangular cavity is formed in the inner wall of the brick body, a driving component is arranged on the inner wall of the rectangular cavity, a sliding cavity is formed in the inner wall of the brick body, and an adjusting component is slidably connected into the sliding cavity in a sealed mode. The wall tile has the advantages that by arranging the structures such as the resonance membrane, the gas storage cavities and stirring blades, the situation that Ca(OH)2 in Ca(OH)2 turbid liquid is dissolved unevenly, the absorption degree of acid harmful gas is reduced is prevented, the harmful gas is evenly introduced into the reaction box, it is guaranteed that the acid harmful gas makes uniform contact with the Ca(OH)2 solution, and the absorption and purification degree is improved.

The invention belongs to the field of chemical product preparation, and in particular relates to an electronic-grade sulfuric acid preparation device and a preparation method thereof. The device includes a pretreatment tank, which is filled with strong oxidants, including potassium permanganate and potassium dichromate, which are used to oxidize reducing impurities in industrial sulfuric acid raw materials; the internal temperature of the rectification tower is 185‑195 °C , the pressure is 1.45-2.23kPa, used to remove the sulfate impurities generated by the oxidation reaction in the pretreatment tank to obtain high-purity sulfuric acid; the absorption treatment tower, the absorption treatment tower is equipped with an alkaline solution, used for absorption and rectification tower The acid waste gas produced in the environment; the filter is equipped with a microporous membrane, which can filter out the fine solid particle impurities in the high-purity sulfuric acid. The invention has low cost, good impurity removal and purification efficiency, effectively and efficiently purifies and absorbs the acid mist waste gas generated in the preparation process, reduces environmental pollution, and improves production efficiency.

The invention belongs to the technical field of clinical nursing medical equipment, and discloses a negative oxygen ion acceleration cabin for promoting body rehabilitation. The acceleration cabin comprises a cabin body, and a plurality of negative oxygen ion generating components and ultrasonic acceleration components disposed in the cabin body; each negative oxygen ion generating component comprises a negative oxygen ion generating cavity, the negative oxygen ion generating cavity is provided with diverging holes, and a negative oxygen ion generator is disposed in the negative oxygen ion generating cavity; each ultrasonic acceleration component includes an ultrasonic generating cavity, an ultrasonic generator is arranged in the ultrasonic generating cavity, the ultrasonic generator includes an ultrasonic emission head, and the ultrasonic emission head extends to the outside of the ultrasonic generating cavity; and a ventilation system and a supine table are arranged in the cabin body, the exterior of the cabin body is provided with an RF starting device, and the RF starting device is used for starting the cabin by induction. The negative oxygen ion acceleration cabin creates a high-concentration of negative oxygen ion environment in the cabin body, the human body can receive negative oxygen ions at multiple angles in the cabin body, and the rehabilitation efficiency brought by using the acceleration cabin is higher. Therefore, the acceleration cabin is worth promoting.

The invention relates to the technical field of heavy metal element analysis, and particularly discloses a device and a method for detecting contents of particulate matters and heavy metal elements ina tail gas. The device comprises a sampling gun, an absorption box and a constant-speed sampler which are sequentially connected. The sampling gun comprises a sampling probe, a sampling filter membrane and a sampling pipe; and a first group of absorption bottles, a safety bottle, a second group of absorption bottles and a drying bottle which are sequentially connected are arranged in the absorption box, the first group of absorption bottles are connected with the sampling pipe, and an outlet of the drying bottle is connected with the constant-speed sampler. According to the device and the method provided by the invention, the two groups of absorption bottles are combined with inductively coupled plasma mass spectrometry and cold atomic absorption spectrophotometry so that the contents ofheavy metal elements in the tail gas is effectively detected, and the device and the method are simple, efficient and high in accuracy.

The invention discloses a method of recycling organic substances from polyurethane synthetic leather waste gas. In the method, an ionic liquid and a liquid ester are employed as special absorbers. In an absorption column, cooled synthetic leather waste gas which flows countercurrent is treated in a low-temperature spray manner, wherein organic substances, such as methylbenzene, butanone and DMF, in the waste gas are absorbed by a low-temperature absorber. The absorber then is fed into a desorption column to carry out desorption and separation to recycle the methylbenzene and butanone, and then is fed into a pressure-reduced distillation column to carry out desorption and separation to recycle the DMF. The special absorber contains 50-70% of the ionic liquid, 5-25% of dibutyl terephthalate, 15-25% of butylene terephthalate and 5-15% of ethylene glycol m-phthalate. The special absorber is more than 300 DEG C in boiling point and is suitable for absorbing the methylbenzene, butanone and DMF. The method can recycle the DMF and the methylbenzene at high recycle efficiency, wherein the recycled DMF is more than 99% in purity and low-boiling-point organic substances, such as the recycled methyl and butanone, are more than 99.5% in purity.

The invention discloses a dry distillation absorber for I-131 production. The dry distillation absorber comprises a vertical absorption trough and a horizontal distillation tube, wherein the absorption trough comprises an alkaline liquid tank, a water bath tank and a coiled tube, and one end of the distillation tube is flared. The other end of the distillation tube is fixedly connected with the side wall of the alkaline liquid tank through a sleeve, the water bath tank is placed into the alkaline liquid tank, and the coiled tube is placed into the water bath tank. A pipeline at the upper end of the coiled tube sequentially penetrates the water bath tank, the alkaline liquid tank and the sleeve in an obliquely upward manner, enters the distillation tube and is hermetically and fixedly connected with the water bath tank, the alkaline liquid tank and the distillation tube, and an included angle is formed between the pipeline at the upper end of the coiled tube and a horizontal line. A pipeline at the lower end of the coiled tube vertically goes through the bottom center of the water bath tank and is hermetically and fixedly connected with the water bath tank. The dry distillation absorber can distill and rapidly trap high-temperature I-131 steam distilled off by reactor TeO2, and Na131I production efficiency and safety can be more effectively improved.