17 results about "Soda lime" patented technology

The utility model relates to the technical field of soda lime screen barrels, in particular to a dustproof screen barrel frame for soda lime, which comprises a supporting bottom frame and a plurality of locking universal wheels mounted at the bottom of the supporting bottom frame, and further comprises a rotary screening mechanism used for conveniently screening the soda lime, the rotary screening mechanism is positioned above the supporting bottom frame, and the locking universal wheels are mounted at the bottom of the supporting bottom frame. The rotating screening mechanism comprises a plurality of fixing plates and two mounting bottom frames, and a rotating shaft is rotationally connected between the two fixing plates; by means of the effect that the installation bottom frame can be shaken and rotated, workers can shake and screen a small amount of soda lime raw materials conveniently, compared with the effect of screening through a large machine, the effect of the locking universal wheels is added, the workers can move the screen barrel frame conveniently, and the screening efficiency is improved. And the using environment for screening the soda lime by workers is improved, the workers can screen the soda lime conveniently, and therefore the working efficiency of screening the soda lime by the workers is improved.

The application relates to the fine chemical technology field, and particularly discloses a preparation method of electronic-grade ammonia water. The preparation method comprises the following steps: pyrolyzing urea as raw material, purifying mixed gas with lime, and obtaining primary ammonia gas through gradient separation of a plurality of cold traps; after the primary ammonia gas is deeply removed of trace organic matters and oil mist through an adsorption tower filled with CD@MCM-41, the primary ammonia gas is introduced into an amino-functionalized ionic liquid for absorption, and an ammonia-rich solution is obtained; the ammonia-rich solution is pumped into an F-DLC-coated falling film crystallizer for crystallization, sweating treatment and desorption, and high-purity ammonia gas is obtained; finally, the high-purity ammonia gas is dissolved in ultrapure water, and terminal purification treatment is carried out through a PEI-g-NF membrane grafted with a polyamine group, so that electronic-grade ammonia water meeting the SEMI G5 standard is obtained. The process flow of the application is fully closed, no organic solvent is left, the removal rates of metal ions and TOC are high, and the application has high industrial application value.

The utility model discloses a multifunctional chemical experiment device, which belongs to the technical field of teaching aids and comprises a main body, the main body comprises a three-neck cylindrical flat-bottomed flask, a bottle cavity is arranged in the three-neck cylindrical flat-bottomed flask, and three groups of distributed open piles are arranged on the top surface of the three-neck cylindrical flat-bottomed flask. According to the property verification device, experiment operation and teaching processes are carried out through the bottle cavity in the three-neck cylindrical flat-bottomed flask, heating is not needed in the gas preparation process, the acid amount is controlled at any time, the pressure intensity generated by Cl2 can be automatically adjusted through the balloon communicated with the top surface of the three-neck cylindrical flat-bottomed flask, the safety coefficient is high, and the experiment efficiency is high. Redundant Cl2 in the experiment process can be automatically absorbed by soda lime in the balloon and can also be absorbed by injecting a sodium hydroxide solution through the glass charging valve, so that the operation is more convenient, the whole experiment is performed in a sealed environment, the mouth part is polished, the sealing performance is good, the environment is protected, the Cl2 can be effectively prevented from polluting the environment, and the environmental awareness of students is enhanced.

The invention relates to a cartridge (25) for capturing CO2, configured to adsorb CO2 from the breath of a user, comprising: a storage space (60) for an adsorbent product (P) capable of adsorbing CO2, the product being in particulate form, in particular soda lime, the storage space (60) comprising a bottom (63) and an opening (61) opposite the bottom; a compaction member (62) arranged on a side of the opening (61) in the storage space (60), the compaction member being movable in the storage space (60) towards the bottom and configured to compress the sorbent product in particulate form down on the bottom of the storage space (60); a spring (65) configured to exert a force on the compaction member (62), the force tending to urge the compaction member (62) toward the bottom of the storage space (60).

The present application relates to a kind of alkali lime sintering process for extracting alumina from fly ash, comprising the following steps: 1) dry raw material includes by weight parts: fly ash 35-45 parts, limestone 20-35 parts, soda 20-40 parts;Starch is mixed with lye, and heated to 80-85 DEG C;The weight of starch is 3%-5% of dry raw material;2) the dry raw material is mixed, and it is put into lye containing starch and mixed again;Ball is made on disc balling machine, when the particle size of ball reaches about 10, stop adding lye, and add fly ash on the surface of ball;When the particle size is about 12, stop adding fly ash, and get green ball;3) drying, sintering to get clinker.The advantages are: using widely sourced starch, can form biomass carbon after entering high temperature, can reduce sulfate in ball, reduce alkali consumption, and there is no residue after sintering, no effect on the following process.Clinker strength reaches more than 500 N / individual ball.

The invention relates to a bypass valve used in an anaesthesia machine loop. The bypass valve comprises a bypass valve body, a valve element, a main spring and a gland. The bypass valve body is in an annular groove shape, a first through hole is formed in the center of the bypass valve body in the axial direction in an extending mode, and a second through hole is further formed in the end face of the annular groove of the bypass valve body. The valve core is arranged in the first through hole; the gland is fixed at one end of the bypass valve body, a central through hole coaxial with the first through hole and another through hole aligned with the second through hole are formed in the gland, and the central through hole and the through hole are used for being communicated with corresponding vent holes in a loop main body of the anaesthesia machine respectively; a main spring is arranged between the valve element and the gland and used for elastically adjusting the distance between the valve element and the gland. The soda lime tank with the conventional volume can be adopted, when the soda lime tank is detached, a channel is formed in the bypass valve, an air path cannot be communicated with the external atmosphere, continuous ventilation can be achieved, operation is easy, and safety and reliability are achieved.

A cartridge for capturing or absorbing CO2 from a user's breath includes a storage space for an adsorbent product (P) to adsorb CO2. The product is in the form of grains, in particular soda lime. The storage space includes a bottom and an opening opposite the bottom, and a compression member arranged on the side of the opening in the storage space. The compression member is movable in the storage space towards the bottom and may tamp down the adsorbent product in the form of grains against the bottom of the storage space. The storage space includes a spring that may exert a force on the compression member tending to push the compression member towards the bottom of the storage space.

A dust-proof carbon dioxide absorption tank relates to the field of medical instruments and comprises an absorption tank body with a filling port, and a connecting port is arranged on the upper side of the absorption tank body; the dustproof cover is arranged in an up-and-down penetrating mode and comprises a first end connected with the absorption tank body, a micro-motion second end detachably connected with the soda lime storage tank and a cover body connected with the first end and the second end, the first end is provided with a sealing ring connected with the absorption tank body, the second end is a contraction opening, and the second end is provided with an elastic device. The dust cover is additionally arranged outside the carbon dioxide absorption tank, when soda lime needs to be added, only the dust cover needs to be stretched, the second end of the dust cover is connected with the outlet of the soda lime storage tank, the connection between the dust cover and the outlet of the soda lime storage tank is more reliable through the loosening and tightening device, the soda lime can be added, and the phenomenon that dust overflows cannot be caused; and after addition is completed, the second end only needs to be pulled down and folded on the outer side of the absorption tank body, and installation and use of the carbon dioxide absorption tank are not affected.

The utility model relates to the technical field of hydrogen purification, and discloses a hydrogen purification device which comprises a purification box, and a precipitation bin, an oil removal bin, a drying bin and a purification bin which are arranged on the purification box, a gas inlet pipe is fixedly arranged on the side wall of the purification box, and a gas outlet pipe is fixedly arranged at the upper end of the purification box; the purification box is provided with a purification assembly for purifying hydrogen, the purification assembly comprises a first filter screen fixedly mounted between the precipitation bin and the oil removal bin, and under the action of the first filter screen, a second filter screen and soda lime, oil and moisture contained in the hydrogen are completely absorbed, so that the purity of the hydrogen is improved; then, the hydrogen is in contact with the hollow fiber membrane, the hollow fiber membrane blocks other gases except the hydrogen, and finally, the hydrogen with the purity reaching 99.99 is discharged from the gas outlet pipe, so that the hydrogen explosion in the generator caused by insufficient hydrogen purity is avoided, and the flight crew is prevented from being hurt.

A glass has a basic soda-lime-silica glass portion, and a colorant portion, the colorant portion including total iron as Fe2O3 in the range of at least 0.02 to no more than 0.10 weight percent, a redox ratio in the range of 0.20 to 0.6, and tin metal providing tin in an amount within the range of greater than 0.005 to 5.0 weight percent; the glass product has a tin side and an opposite air side, said tin side of the glass having a higher concentration of tin than the air side, the air side having a uniform concentration of tin from the air side of the glass product towards the tin side of the glass product.

The invention relates to a metal coating hollow glass bead as well as a preparation method and application thereof. The metal coating hollow glass bead comprises a soda lime borosilicate hollow glass bead and a tin-zinc alloy coating plated on the surface of the soda lime borosilicate hollow glass bead, and the density of the metal coating hollow glass beads is 1.6-2.1 g / cm < 3 >. The hollow glass beads are combined with the tin-zinc alloy coating, a composite structure of a light inner core and a high-density coating is formed, casing deformation can be remarkably reduced, meanwhile, the overall density of the hollow glass beads is improved to be matched with the density of conventional well cementation cement paste through the outer tin-zinc alloy coating, the well cementation quality is guaranteed, and the well cementation efficiency is improved. The metal coating hollow glass beads also have good mechanical properties and corrosion resistance, and can meet the application requirements in extreme environments.

The application discloses a kind of super-transparency soda lime low-iron ultra-white float glass and its preparation process, belong to ultra-white float glass technical field.Its technical scheme is: including mix and broken glass, broken glass is 18-25% of the total mass of mix, mix includes the following weight percentage components: quartz sand 56-62%, alumina 1.5-3.5%, soda lime 3-6%, potassium feldspar 4-6%, calcite 4-6%, dolomite 6-8%, soda ash 13-16%, barium sulfate 0.5-1.5%, boric anhydride 0.15-0.35%, sodium sulfate 0.7-1%, sodium fluoride 1-2% and NaSb (OH) 6 0.5-2%.The ultra-white glass prepared by the application can be various deep processing like other high-quality float glass, has superior physical, mechanical, optical properties, has less apparent defect and high transparency.

The utility model discloses a preparation device for rapidly and continuously obtaining CO2-free free air in a laboratory, and relates to the technical field of CO2-free free air preparation. After the sucking pump is started, air is injected into the adsorption mechanism, CO2 in the air is adsorbed and removed through soda lime in the adsorption mechanism, the air with CO2 removed enters the drying cylinder through the communicating pipe, and H2O in the air is removed through a silica gel drying agent in the drying cylinder. Under the cooperation of the adsorption mechanism and the drying cylinder, CO2-free and H2O-free free air conforming to the natural state can be obtained, the CO2-free free air can be generated by starting up without preparation in advance, the cost is low, the efficiency is high, the air purifier can be started at any time when used, and the air purifier can be used at any time after being matched; the gas storage cavity is in threaded connection with the external pipe, the gas storage cavity and the external pipe can be detached through threaded connection, and the use requirements under different conditions can be met by replacing the external pipe.

The invention belongs to the field of novel mineral inorganic materials, and provides a mineral inorganic high-water-content high-strength closed filling and water plugging material which comprises a material A and a material B. The material A is prepared from the following raw materials in percentage by weight: 65-85% of quick-hardening sulphoaluminate cement, 1-5% of a water reducing agent, 1-5% of a water reducing agent, 1-5% of a water reducing agent and 1-5% of a water reducing agent. 5-15% of Portland cement; 5-15% of a nucleating agent; 0.5-2% of sodium carbonate; 5-10% of sodium aluminate; 0.5 to 2% of bentonite; 1-5% of silica fume; the sum of the percentages of all the raw materials is 100%; the material B is prepared from the following raw materials in percentage by weight: 20-50% of anhydrous calcium sulfate; 15-40% of superfine slag powder; 15-30% of calcium oxide powder; 0.5-2% of sodium sulfate; 0.5 to 2% of bentonite; the sum of the percentages of all the raw materials is 100%; the nucleating agent is prepared by mixing bauxite, sodium carbonate, limestone and kaolin according to the weight ratio of 3: 2: 1: 1 and then calcining. The concrete has the characteristics of simple construction process, low material consumption, high water cement ratio, high compressive strength, high solid water, low calorific value, adjustable and controllable setting time and good pressure-bearing compactness.

The utility model provides a soda lime tank clamping mechanism, a breathing circuit device and an anaesthesia machine. The soda lime tank clamping mechanism comprises a fixing frame, a top cover assembly, a lifting assembly and a soda lime tank. The fixing frame comprises a first fixing piece, a connecting piece and a second fixing piece, the first fixing piece and the second fixing piece are oppositely arranged at an interval, and the two ends of the connecting piece are connected with the first fixing piece and the second fixing piece respectively; the fixing frame is used for being fixed to a breathing circuit body. The top cover assembly is fixed to the first fixing piece and is provided with a sealing structure. The lifting assembly is arranged on the second fixing piece and is provided with a mounting position; the soda lime tank is arranged at the installation position and located between the top cover assembly and the lifting assembly. The soda lime tank clamping mechanism does not need to consider the influence of the machining precision of the main body parts of the anaesthesia machine, the limitation that the main body of the anaesthesia machine needs to be provided with a corresponding mounting and fixing structure is avoided, and the operability of upgrading and replacement of the soda lime tank clamping mechanism of the anaesthesia machine is improved.

The present invention provides a glass sheet having soda-lime-silica glass composition with a high visible light transmittance (LtC) of at least 89%; with a dominant wavelength (DW) from about 490 to 505 nanometers and purity (Pe) of no more than 1% for control thickness of 5.66 mm, and methods of making the same. The glass composition comprising a low iron raw material, a total iron oxide (Fe2O3) of 0.02 to 0.06 wt. %, ferrous (FeO) from 0.006 to 0.02 wt. %, redox (FeO / Fe2O3) from about 0.30 to 0.55; Cr2O3 from about 0.3 to 10 ppm, TiO2 from about 50 to 500 ppm; SnO2 from about 10 to 500 ppm and a critical amount from about 0.10 to 0.25 wt. % of SO3. The low content of iron oxide is achieved by the partial substitution of regular raw materials by low iron raw materials, with a complete substitution of regular dolomite by a low iron dolomite with a maximum content of 0.020 wt. % Fe2O3.

The invention discloses a clinical anesthesiology department medicine supply anesthesia device which comprises an air blower, an outlet of the air blower is connected with an inspiration check valve in a penetrating mode, one end of the inspiration check valve is connected with an expiration check valve in a penetrating mode, and an anesthetic gas output end is connected between the inspiration check valve and the expiration check valve in a penetrating mode. One end of the expiration check valve is connected with a soda lime tank in a penetrating mode, one end of the soda lime tank is connected with an inlet of an air blower in a penetrating mode, an outlet of the air blower is further connected with a first throttling valve in a penetrating mode, a mixing device is arranged at one end of the first throttling valve, and one end of the mixing device is connected with a fresh gas supply end in a penetrating mode. The fresh gas supply end is in through connection with a second throttling valve, the mixing device is in through connection with the soda lime tank, one end of the suction check valve is in through connection with a suction flow sensor, and the device solves the problem of poor practicability at present.